Merge pull request #86 from juanfont/better-ui

Improve tables in CLI
Merge pull request #87 from juanfont/fix-route-notify
2025-08-16 08:37:34 +00:00 · 2021-08-16 09:33:47 +02:00 · 2021-08-16 09:25:31 +02:00 · 2021-08-16 00:29:38 +02:00 · 2021-08-16 00:17:26 +02:00 · 2021-08-15 23:35:03 +02:00
30 changed files with 1149 additions and 194 deletions
--- a/.dockerignore
+++ b/.dockerignore
@@ -0,0 +1,17 @@
+// integration tests are not needed in docker
+// ignoring it let us speed up the integration test
+// development
+integration_test.go
+integration_test/
+
+Dockerfile*
+docker-compose*
+.dockerignore
+.goreleaser.yml
+.git
+.github
+.gitignore
+README.md
+LICENSE
+.vscode
+
--- a/.gitignore
+++ b/.gitignore
@@ -18,3 +18,4 @@
 config.json
 *.key
 /db.sqlite
+*.sqlite3
--- a/15
+++ b/15
@@ -1,12 +1,19 @@
 FROM golang:latest AS build
 ENV GOPATH /go
-COPY . /go/src/headscale
+
+COPY go.mod go.sum /go/src/headscale/
 WORKDIR /go/src/headscale
+RUN go mod download
+
+COPY . /go/src/headscale
+
 RUN go install -a -ldflags="-extldflags=-static" -tags netgo,sqlite_omit_load_extension ./cmd/headscale
 RUN test -e /go/bin/headscale

-FROM scratch
-COPY --from=build /go/bin/headscale /go/bin/headscale
+FROM ubuntu:latest
+
+COPY --from=build /go/bin/headscale /usr/local/bin/headscale
 ENV TZ UTC
+
 EXPOSE 8080/tcp
-ENTRYPOINT ["/go/bin/headscale"]
+CMD ["headscale"]
--- a/Dockerfile.tailscale
+++ b/Dockerfile.tailscale
@@ -0,0 +1,9 @@
+FROM ubuntu:latest
+
+RUN apt-get update \
+    && apt-get install -y gnupg curl \
+    && curl -fsSL https://pkgs.tailscale.com/stable/ubuntu/focal.gpg | apt-key add - \
+    && curl -fsSL https://pkgs.tailscale.com/stable/ubuntu/focal.list | tee /etc/apt/sources.list.d/tailscale.list \
+    && apt-get update \
+    && apt-get install -y tailscale \
+    && rm -rf /var/lib/apt/lists/*
--- a/3
+++ b/3
@@ -9,6 +9,9 @@ dev: lint test build
 test:
 	@go test -coverprofile=coverage.out ./...

+test_integration:
+	go test -tags integration -timeout 30m ./...
+
 coverprofile_func:
 	go tool cover -func=coverage.out

--- a/README.md
+++ b/README.md
@@ -119,6 +119,11 @@ Headscale's configuration file is named `config.json` or `config.yaml`. Headscal

 `server_url` is the external URL via which Headscale is reachable. `listen_addr` is the IP address and port the Headscale program should listen on. `ip_prefix` is the IP prefix (range) in which IP addresses for nodes will be allocated (default 100.64.0.0/10, e.g., 192.168.4.0/24, 10.0.0.0/8)

+```
+    "log_level": "debug"
+```
+`log_level` can be used to set the Log level for Headscale, it defaults to `debug`, and the available levels are: `trace`, `debug`, `info`, `warn` and `error`.
+
 ```
    "private_key_path": "private.key",
 ```
--- a/acls.go
+++ b/acls.go
@@ -4,11 +4,12 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
-	"log"
 	"os"
 	"strconv"
 	"strings"

+	"github.com/rs/zerolog/log"
+
 	"github.com/tailscale/hujson"
 	"inet.af/netaddr"
 	"tailscale.com/tailcfg"
@@ -66,7 +67,8 @@ func (h *Headscale) generateACLRules() (*[]tailcfg.FilterRule, error) {
 		for j, u := range a.Users {
 			srcs, err := h.generateACLPolicySrcIP(u)
 			if err != nil {
-				log.Printf("Error parsing ACL %d, User %d", i, j)
+				log.Error().
+					Msgf("Error parsing ACL %d, User %d", i, j)
 				return nil, err
 			}
 			srcIPs = append(srcIPs, *srcs...)
@@ -77,7 +79,8 @@ func (h *Headscale) generateACLRules() (*[]tailcfg.FilterRule, error) {
 		for j, d := range a.Ports {
 			dests, err := h.generateACLPolicyDestPorts(d)
 			if err != nil {
-				log.Printf("Error parsing ACL %d, Port %d", i, j)
+				log.Error().
+					Msgf("Error parsing ACL %d, Port %d", i, j)
 				return nil, err
 			}
 			destPorts = append(destPorts, *dests...)
--- a/api.go
+++ b/api.go
@@ -6,10 +6,11 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"log"
 	"net/http"
 	"time"

+	"github.com/rs/zerolog/log"
+
 	"github.com/gin-gonic/gin"
 	"github.com/klauspost/compress/zstd"
 	"gorm.io/datatypes"
@@ -63,21 +64,27 @@ func (h *Headscale) RegistrationHandler(c *gin.Context) {
 	mKeyStr := c.Param("id")
 	mKey, err := wgkey.ParseHex(mKeyStr)
 	if err != nil {
-		log.Printf("Cannot parse machine key: %s", err)
+		log.Error().
+			Str("handler", "Registration").
+			Err(err).
+			Msg("Cannot parse machine key")
 		c.String(http.StatusInternalServerError, "Sad!")
 		return
 	}
 	req := tailcfg.RegisterRequest{}
 	err = decode(body, &req, &mKey, h.privateKey)
 	if err != nil {
-		log.Printf("Cannot decode message: %s", err)
+		log.Error().
+			Str("handler", "Registration").
+			Err(err).
+			Msg("Cannot decode message")
 		c.String(http.StatusInternalServerError, "Very sad!")
 		return
 	}

 	var m Machine
 	if result := h.db.Preload("Namespace").First(&m, "machine_key = ?", mKey.HexString()); errors.Is(result.Error, gorm.ErrRecordNotFound) {
-		log.Println("New Machine!")
+		log.Info().Str("machine", req.Hostinfo.Hostname).Msg("New machine")
 		m = Machine{
 			Expiry:     &req.Expiry,
 			MachineKey: mKey.HexString(),
@@ -85,7 +92,10 @@ func (h *Headscale) RegistrationHandler(c *gin.Context) {
 			NodeKey:    wgkey.Key(req.NodeKey).HexString(),
 		}
 		if err := h.db.Create(&m).Error; err != nil {
-			log.Printf("Could not create row: %s", err)
+			log.Error().
+				Str("handler", "Registration").
+				Err(err).
+				Msg("Could not create row")
 			return
 		}
 	}
@@ -100,13 +110,20 @@ func (h *Headscale) RegistrationHandler(c *gin.Context) {
 	// We have the updated key!
 	if m.NodeKey == wgkey.Key(req.NodeKey).HexString() {
 		if m.Registered {
-			log.Printf("[%s] Client is registered and we have the current NodeKey. All clear to /map", m.Name)
+			log.Debug().
+				Str("handler", "Registration").
+				Str("machine", m.Name).
+				Msg("Client is registered and we have the current NodeKey. All clear to /map")
+
 			resp.AuthURL = ""
 			resp.MachineAuthorized = true
 			resp.User = *m.Namespace.toUser()
 			respBody, err := encode(resp, &mKey, h.privateKey)
 			if err != nil {
-				log.Printf("Cannot encode message: %s", err)
+				log.Error().
+					Str("handler", "Registration").
+					Err(err).
+					Msg("Cannot encode message")
 				c.String(http.StatusInternalServerError, "")
 				return
 			}
@@ -114,12 +131,18 @@ func (h *Headscale) RegistrationHandler(c *gin.Context) {
 			return
 		}

-		log.Printf("[%s] Not registered and not NodeKey rotation. Sending a authurl to register", m.Name)
+		log.Debug().
+			Str("handler", "Registration").
+			Str("machine", m.Name).
+			Msg("Not registered and not NodeKey rotation. Sending a authurl to register")
 		resp.AuthURL = fmt.Sprintf("%s/register?key=%s",
 			h.cfg.ServerURL, mKey.HexString())
 		respBody, err := encode(resp, &mKey, h.privateKey)
 		if err != nil {
-			log.Printf("Cannot encode message: %s", err)
+			log.Error().
+				Str("handler", "Registration").
+				Err(err).
+				Msg("Cannot encode message")
 			c.String(http.StatusInternalServerError, "")
 			return
 		}
@@ -129,7 +152,10 @@ func (h *Headscale) RegistrationHandler(c *gin.Context) {

 	// The NodeKey we have matches OldNodeKey, which means this is a refresh after an key expiration
 	if m.NodeKey == wgkey.Key(req.OldNodeKey).HexString() {
-		log.Printf("[%s] We have the OldNodeKey in the database. This is a key refresh", m.Name)
+		log.Debug().
+			Str("handler", "Registration").
+			Str("machine", m.Name).
+			Msg("We have the OldNodeKey in the database. This is a key refresh")
 		m.NodeKey = wgkey.Key(req.NodeKey).HexString()
 		h.db.Save(&m)

@@ -137,7 +163,10 @@ func (h *Headscale) RegistrationHandler(c *gin.Context) {
 		resp.User = *m.Namespace.toUser()
 		respBody, err := encode(resp, &mKey, h.privateKey)
 		if err != nil {
-			log.Printf("Cannot encode message: %s", err)
+			log.Error().
+				Str("handler", "Registration").
+				Err(err).
+				Msg("Cannot encode message")
 			c.String(http.StatusInternalServerError, "Extremely sad!")
 			return
 		}
@@ -148,25 +177,38 @@ func (h *Headscale) RegistrationHandler(c *gin.Context) {
 	// We arrive here after a client is restarted without finalizing the authentication flow or
 	// when headscale is stopped in the middle of the auth process.
 	if m.Registered {
-		log.Printf("[%s] The node is sending us a new NodeKey, but machine is registered. All clear for /map", m.Name)
+		log.Debug().
+			Str("handler", "Registration").
+			Str("machine", m.Name).
+			Msg("The node is sending us a new NodeKey, but machine is registered. All clear for /map")
 		resp.AuthURL = ""
 		resp.MachineAuthorized = true
 		resp.User = *m.Namespace.toUser()
 		respBody, err := encode(resp, &mKey, h.privateKey)
 		if err != nil {
-			log.Printf("Cannot encode message: %s", err)
+			log.Error().
+				Str("handler", "Registration").
+				Err(err).
+				Msg("Cannot encode message")
 			c.String(http.StatusInternalServerError, "")
 			return
 		}
 		c.Data(200, "application/json; charset=utf-8", respBody)
 		return
 	}
-	log.Printf("[%s] The node is sending us a new NodeKey, sending auth url", m.Name)
+
+	log.Debug().
+		Str("handler", "Registration").
+		Str("machine", m.Name).
+		Msg("The node is sending us a new NodeKey, sending auth url")
 	resp.AuthURL = fmt.Sprintf("%s/register?key=%s",
 		h.cfg.ServerURL, mKey.HexString())
 	respBody, err := encode(resp, &mKey, h.privateKey)
 	if err != nil {
-		log.Printf("Cannot encode message: %s", err)
+		log.Error().
+			Str("handler", "Registration").
+			Err(err).
+			Msg("Cannot encode message")
 		c.String(http.StatusInternalServerError, "")
 		return
 	}
@@ -183,28 +225,45 @@ func (h *Headscale) RegistrationHandler(c *gin.Context) {
 //
 // At this moment the updates are sent in a quite horrendous way, but they kinda work.
 func (h *Headscale) PollNetMapHandler(c *gin.Context) {
+	log.Trace().
+		Str("handler", "PollNetMap").
+		Str("id", c.Param("id")).
+		Msg("PollNetMapHandler called")
 	body, _ := io.ReadAll(c.Request.Body)
 	mKeyStr := c.Param("id")
 	mKey, err := wgkey.ParseHex(mKeyStr)
 	if err != nil {
-		log.Printf("Cannot parse client key: %s", err)
+		log.Error().
+			Str("handler", "PollNetMap").
+			Err(err).
+			Msg("Cannot parse client key")
 		c.String(http.StatusBadRequest, "")
 		return
 	}
 	req := tailcfg.MapRequest{}
 	err = decode(body, &req, &mKey, h.privateKey)
 	if err != nil {
-		log.Printf("Cannot decode message: %s", err)
+		log.Error().
+			Str("handler", "PollNetMap").
+			Err(err).
+			Msg("Cannot decode message")
 		c.String(http.StatusBadRequest, "")
 		return
 	}

 	var m Machine
 	if result := h.db.Preload("Namespace").First(&m, "machine_key = ?", mKey.HexString()); errors.Is(result.Error, gorm.ErrRecordNotFound) {
-		log.Printf("Ignoring request, cannot find machine with key %s", mKey.HexString())
+		log.Warn().
+			Str("handler", "PollNetMap").
+			Msgf("Ignoring request, cannot find machine with key %s", mKey.HexString())
 		c.String(http.StatusUnauthorized, "")
 		return
 	}
+	log.Trace().
+		Str("handler", "PollNetMap").
+		Str("id", c.Param("id")).
+		Str("machine", m.Name).
+		Msg("Found machine in database")

 	hostinfo, _ := json.Marshal(req.Hostinfo)
 	m.Name = req.Hostinfo.Hostname
@@ -227,17 +286,14 @@ func (h *Headscale) PollNetMapHandler(c *gin.Context) {
 	}
 	h.db.Save(&m)

-	pollData := make(chan []byte, 1)
-	update := make(chan []byte, 1)
-	cancelKeepAlive := make(chan []byte, 1)
-	defer close(pollData)
-	defer close(cancelKeepAlive)
-	h.pollMu.Lock()
-	h.clientsPolling[m.ID] = update
-	h.pollMu.Unlock()
-
 	data, err := h.getMapResponse(mKey, req, m)
 	if err != nil {
+		log.Error().
+			Str("handler", "PollNetMap").
+			Str("id", c.Param("id")).
+			Str("machine", m.Name).
+			Err(err).
+			Msg("Failed to get Map response")
 		c.String(http.StatusInternalServerError, ":(")
 		return
 	}
@@ -247,82 +303,79 @@ func (h *Headscale) PollNetMapHandler(c *gin.Context) {
 	// empty endpoints to peers)

 	// Details on the protocol can be found in https://github.com/tailscale/tailscale/blob/main/tailcfg/tailcfg.go#L696
-	log.Printf("[%s] ReadOnly=%t   OmitPeers=%t    Stream=%t", m.Name, req.ReadOnly, req.OmitPeers, req.Stream)
+	log.Debug().
+		Str("handler", "PollNetMap").
+		Str("id", c.Param("id")).
+		Str("machine", m.Name).
+		Bool("readOnly", req.ReadOnly).
+		Bool("omitPeers", req.OmitPeers).
+		Bool("stream", req.Stream).
+		Msg("Client map request processed")

 	if req.ReadOnly {
-		log.Printf("[%s] Client is starting up. Asking for DERP map", m.Name)
+		log.Info().
+			Str("handler", "PollNetMap").
+			Str("machine", m.Name).
+			Msg("Client is starting up. Asking for DERP map")
 		c.Data(200, "application/json; charset=utf-8", *data)
 		return
 	}
 	if req.OmitPeers && !req.Stream {
-		log.Printf("[%s] Client sent endpoint update and is ok with a response without peer list", m.Name)
+		log.Info().
+			Str("handler", "PollNetMap").
+			Str("machine", m.Name).
+			Msg("Client sent endpoint update and is ok with a response without peer list")
 		c.Data(200, "application/json; charset=utf-8", *data)
 		return
 	} else if req.OmitPeers && req.Stream {
-		log.Printf("[%s] Warning, ignoring request, don't know how to handle it", m.Name)
+		log.Warn().
+			Str("handler", "PollNetMap").
+			Str("machine", m.Name).
+			Msg("Ignoring request, don't know how to handle it")
 		c.String(http.StatusBadRequest, "")
 		return
 	}

-	log.Printf("[%s] Client is ready to access the tailnet", m.Name)
-	log.Printf("[%s] Sending initial map", m.Name)
+	// Only create update channel if it has not been created
+	var update chan []byte
+	log.Trace().
+		Str("handler", "PollNetMap").
+		Str("id", c.Param("id")).
+		Str("machine", m.Name).
+		Msg("Creating or loading update channel")
+	if result, ok := h.clientsPolling.LoadOrStore(m.ID, make(chan []byte, 1)); ok {
+		update = result.(chan []byte)
+	}
+
+	pollData := make(chan []byte, 1)
+	defer close(pollData)
+
+	cancelKeepAlive := make(chan []byte, 1)
+	defer close(cancelKeepAlive)
+
+	log.Info().
+		Str("handler", "PollNetMap").
+		Str("machine", m.Name).
+		Msg("Client is ready to access the tailnet")
+	log.Info().
+		Str("handler", "PollNetMap").
+		Str("machine", m.Name).
+		Msg("Sending initial map")
 	pollData <- *data

-	log.Printf("[%s] Notifying peers", m.Name)
-	peers, _ := h.getPeers(m)
-	h.pollMu.Lock()
-	for _, p := range *peers {
-		pUp, ok := h.clientsPolling[uint64(p.ID)]
-		if ok {
-			log.Printf("[%s] Notifying peer %s (%s)", m.Name, p.Name, p.Addresses[0])
-			pUp <- []byte{}
-		} else {
-			log.Printf("[%s] Peer %s does not appear to be polling", m.Name, p.Name)
-		}
-	}
-	h.pollMu.Unlock()
+	log.Info().
+		Str("handler", "PollNetMap").
+		Str("machine", m.Name).
+		Msg("Notifying peers")
+		// TODO: Why does this block?
+	go h.notifyChangesToPeers(&m)

-	go h.keepAlive(cancelKeepAlive, pollData, mKey, req, m)
-
-	c.Stream(func(w io.Writer) bool {
-		select {
-		case data := <-pollData:
-			log.Printf("[%s] Sending data (%d bytes)", m.Name, len(data))
-			_, err := w.Write(data)
-			if err != nil {
-				log.Printf("[%s] Cannot write data: %s", m.Name, err)
-			}
-			now := time.Now().UTC()
-			m.LastSeen = &now
-			h.db.Save(&m)
-			return true
-
-		case <-update:
-			log.Printf("[%s] Received a request for update", m.Name)
-			data, err := h.getMapResponse(mKey, req, m)
-			if err != nil {
-				log.Printf("[%s] Could not get the map update: %s", m.Name, err)
-			}
-			_, err = w.Write(*data)
-			if err != nil {
-				log.Printf("[%s] Could not write the map response: %s", m.Name, err)
-			}
-			return true
-
-		case <-c.Request.Context().Done():
-			log.Printf("[%s] The client has closed the connection", m.Name)
-			now := time.Now().UTC()
-			m.LastSeen = &now
-			h.db.Save(&m)
-			h.pollMu.Lock()
-			cancelKeepAlive <- []byte{}
-			delete(h.clientsPolling, m.ID)
-			close(update)
-			h.pollMu.Unlock()
-			return false
-
-		}
-	})
+	h.PollNetMapStream(c, m, req, mKey, pollData, update, cancelKeepAlive)
+	log.Trace().
+		Str("handler", "PollNetMap").
+		Str("id", c.Param("id")).
+		Str("machine", m.Name).
+		Msg("Finished stream, closing PollNetMap session")
 }

 func (h *Headscale) keepAlive(cancel chan []byte, pollData chan []byte, mKey wgkey.Key, req tailcfg.MapRequest, m Machine) {
@@ -332,29 +385,45 @@ func (h *Headscale) keepAlive(cancel chan []byte, pollData chan []byte, mKey wgk
 			return

 		default:
-			h.pollMu.Lock()
 			data, err := h.getMapKeepAliveResponse(mKey, req, m)
 			if err != nil {
-				log.Printf("Error generating the keep alive msg: %s", err)
+				log.Error().
+					Str("func", "keepAlive").
+					Err(err).
+					Msg("Error generating the keep alive msg")
 				return
 			}
-			log.Printf("[%s] Sending keepalive", m.Name)
+
+			log.Debug().
+				Str("func", "keepAlive").
+				Str("machine", m.Name).
+				Msg("Sending keepalive")
 			pollData <- *data
-			h.pollMu.Unlock()
+
 			time.Sleep(60 * time.Second)
 		}
 	}
 }

 func (h *Headscale) getMapResponse(mKey wgkey.Key, req tailcfg.MapRequest, m Machine) (*[]byte, error) {
+	log.Trace().
+		Str("func", "getMapResponse").
+		Str("machine", req.Hostinfo.Hostname).
+		Msg("Creating Map response")
 	node, err := m.toNode()
 	if err != nil {
-		log.Printf("Cannot convert to node: %s", err)
+		log.Error().
+			Str("func", "getMapResponse").
+			Err(err).
+			Msg("Cannot convert to node")
 		return nil, err
 	}
 	peers, err := h.getPeers(m)
 	if err != nil {
-		log.Printf("Cannot fetch peers: %s", err)
+		log.Error().
+			Str("func", "getMapResponse").
+			Err(err).
+			Msg("Cannot fetch peers")
 		return nil, err
 	}

@@ -375,10 +444,15 @@ func (h *Headscale) getMapResponse(mKey wgkey.Key, req tailcfg.MapRequest, m Mac
 		DERPMap:      h.cfg.DerpMap,
 		UserProfiles: []tailcfg.UserProfile{profile},
 	}
+	log.Trace().
+		Str("func", "getMapResponse").
+		Str("machine", req.Hostinfo.Hostname).
+		Msgf("Generated map response: %s", tailMapResponseToString(resp))

 	var respBody []byte
 	if req.Compress == "zstd" {
 		src, _ := json.Marshal(resp)
+
 		encoder, _ := zstd.NewWriter(nil)
 		srcCompressed := encoder.EncodeAll(src, nil)
 		respBody, err = encodeMsg(srcCompressed, &mKey, h.privateKey)
@@ -426,26 +500,49 @@ func (h *Headscale) getMapKeepAliveResponse(mKey wgkey.Key, req tailcfg.MapReque
 }

 func (h *Headscale) handleAuthKey(c *gin.Context, db *gorm.DB, idKey wgkey.Key, req tailcfg.RegisterRequest, m Machine) {
+	log.Debug().
+		Str("func", "handleAuthKey").
+		Str("machine", req.Hostinfo.Hostname).
+		Msgf("Processing auth key for %s", req.Hostinfo.Hostname)
 	resp := tailcfg.RegisterResponse{}
 	pak, err := h.checkKeyValidity(req.Auth.AuthKey)
 	if err != nil {
 		resp.MachineAuthorized = false
 		respBody, err := encode(resp, &idKey, h.privateKey)
 		if err != nil {
-			log.Printf("Cannot encode message: %s", err)
+			log.Error().
+				Str("func", "handleAuthKey").
+				Str("machine", m.Name).
+				Err(err).
+				Msg("Cannot encode message")
 			c.String(http.StatusInternalServerError, "")
 			return
 		}
 		c.Data(200, "application/json; charset=utf-8", respBody)
-		log.Printf("[%s] Failed authentication via AuthKey", m.Name)
+		log.Error().
+			Str("func", "handleAuthKey").
+			Str("machine", m.Name).
+			Msg("Failed authentication via AuthKey")
 		return
 	}
+
+	log.Debug().
+		Str("func", "handleAuthKey").
+		Str("machine", m.Name).
+		Msg("Authentication key was valid, proceeding to acquire an IP address")
 	ip, err := h.getAvailableIP()
 	if err != nil {
-		log.Println(err)
+		log.Error().
+			Str("func", "handleAuthKey").
+			Str("machine", m.Name).
+			Msg("Failed to find an available IP")
 		return
 	}
-	log.Printf("Assigning %s to %s", ip, m.Name)
+	log.Info().
+		Str("func", "handleAuthKey").
+		Str("machine", m.Name).
+		Str("ip", ip.String()).
+		Msgf("Assining %s to %s", ip, m.Name)

 	m.AuthKeyID = uint(pak.ID)
 	m.IPAddress = ip.String()
@@ -459,10 +556,18 @@ func (h *Headscale) handleAuthKey(c *gin.Context, db *gorm.DB, idKey wgkey.Key,
 	resp.User = *pak.Namespace.toUser()
 	respBody, err := encode(resp, &idKey, h.privateKey)
 	if err != nil {
-		log.Printf("Cannot encode message: %s", err)
+		log.Error().
+			Str("func", "handleAuthKey").
+			Str("machine", m.Name).
+			Err(err).
+			Msg("Cannot encode message")
 		c.String(http.StatusInternalServerError, "Extremely sad!")
 		return
 	}
 	c.Data(200, "application/json; charset=utf-8", respBody)
-	log.Printf("[%s] Successfully authenticated via AuthKey", m.Name)
+	log.Info().
+		Str("func", "handleAuthKey").
+		Str("machine", m.Name).
+		Str("ip", ip.String()).
+		Msg("Successfully authenticated via AuthKey")
 }
--- a/app.go
+++ b/app.go
@@ -3,13 +3,14 @@ package headscale
 import (
 	"errors"
 	"fmt"
-	"log"
 	"net/http"
 	"os"
 	"strings"
 	"sync"
 	"time"

+	"github.com/rs/zerolog/log"
+
 	"github.com/gin-gonic/gin"
 	"golang.org/x/crypto/acme/autocert"
 	"gorm.io/gorm"
@@ -57,8 +58,7 @@ type Headscale struct {
 	aclPolicy *ACLPolicy
 	aclRules  *[]tailcfg.FilterRule

-	pollMu         sync.Mutex
-	clientsPolling map[uint64]chan []byte // this is by all means a hackity hack
+	clientsPolling sync.Map
 }

 // NewHeadscale returns the Headscale app
@@ -98,7 +98,6 @@ func NewHeadscale(cfg Config) (*Headscale, error) {
 		return nil, err
 	}

-	h.clientsPolling = make(map[uint64]chan []byte)
 	return &h, nil
 }

@@ -108,9 +107,9 @@ func (h *Headscale) redirect(w http.ResponseWriter, req *http.Request) {
 	http.Redirect(w, req, target, http.StatusFound)
 }

-// ExpireEphemeralNodes deletes ephemeral machine records that have not been
+// expireEphemeralNodes deletes ephemeral machine records that have not been
 // seen for longer than h.cfg.EphemeralNodeInactivityTimeout
-func (h *Headscale) ExpireEphemeralNodes(milliSeconds int64) {
+func (h *Headscale) expireEphemeralNodes(milliSeconds int64) {
 	ticker := time.NewTicker(time.Duration(milliSeconds) * time.Millisecond)
 	for range ticker.C {
 		h.expireEphemeralNodesWorker()
@@ -120,22 +119,23 @@ func (h *Headscale) ExpireEphemeralNodes(milliSeconds int64) {
 func (h *Headscale) expireEphemeralNodesWorker() {
 	namespaces, err := h.ListNamespaces()
 	if err != nil {
-		log.Printf("Error listing namespaces: %s", err)
+		log.Error().Err(err).Msg("Error listing namespaces")
 		return
 	}
 	for _, ns := range *namespaces {
 		machines, err := h.ListMachinesInNamespace(ns.Name)
 		if err != nil {
-			log.Printf("Error listing machines in namespace %s: %s", ns.Name, err)
+			log.Error().Err(err).Str("namespace", ns.Name).Msg("Error listing machines in namespace")
 			return
 		}
 		for _, m := range *machines {
 			if m.AuthKey != nil && m.LastSeen != nil && m.AuthKey.Ephemeral && time.Now().After(m.LastSeen.Add(h.cfg.EphemeralNodeInactivityTimeout)) {
-				log.Printf("[%s] Ephemeral client removed from database\n", m.Name)
+				log.Info().Str("machine", m.Name).Msg("Ephemeral client removed from database")
 				err = h.db.Unscoped().Delete(m).Error
 				if err != nil {
-					log.Printf("[%s] 🤮 Cannot delete ephemeral machine from the database: %s", m.Name, err)
+					log.Error().Err(err).Str("machine", m.Name).Msg("🤮 Cannot delete ephemeral machine from the database")
 				}
+				h.notifyChangesToPeers(&m)
 			}
 		}
 	}
@@ -158,6 +158,7 @@ func (h *Headscale) watchForKVUpdatesWorker() {
 // Serve launches a GIN server with the Headscale API
 func (h *Headscale) Serve() error {
 	r := gin.Default()
+	r.GET("/health", func(c *gin.Context) { c.JSON(200, gin.H{"healthy": "ok"}) })
 	r.GET("/key", h.KeyHandler)
 	r.GET("/register", h.RegisterWebAPI)
 	r.POST("/machine/:id/map", h.PollNetMapHandler)
@@ -165,10 +166,11 @@ func (h *Headscale) Serve() error {
 	var err error

 	go h.watchForKVUpdates(5000)
+	go h.expireEphemeralNodes(5000)

 	if h.cfg.TLSLetsEncryptHostname != "" {
 		if !strings.HasPrefix(h.cfg.ServerURL, "https://") {
-			log.Println("WARNING: listening with TLS but ServerURL does not start with https://")
+			log.Warn().Msg("Listening with TLS but ServerURL does not start with https://")
 		}

 		m := autocert.Manager{
@@ -191,7 +193,10 @@ func (h *Headscale) Serve() error {
 			// port 80 for the certificate validation in addition to the headscale
 			// service, which can be configured to run on any other port.
 			go func() {
-				log.Fatal(http.ListenAndServe(h.cfg.TLSLetsEncryptListen, m.HTTPHandler(http.HandlerFunc(h.redirect))))
+
+				log.Fatal().
+					Err(http.ListenAndServe(h.cfg.TLSLetsEncryptListen, m.HTTPHandler(http.HandlerFunc(h.redirect)))).
+					Msg("failed to set up a HTTP server")
 			}()
 			err = s.ListenAndServeTLS("", "")
 		} else {
@@ -199,12 +204,12 @@ func (h *Headscale) Serve() error {
 		}
 	} else if h.cfg.TLSCertPath == "" {
 		if !strings.HasPrefix(h.cfg.ServerURL, "http://") {
-			log.Println("WARNING: listening without TLS but ServerURL does not start with http://")
+			log.Warn().Msg("Listening without TLS but ServerURL does not start with http://")
 		}
 		err = r.Run(h.cfg.Addr)
 	} else {
 		if !strings.HasPrefix(h.cfg.ServerURL, "https://") {
-			log.Println("WARNING: listening with TLS but ServerURL does not start with https://")
+			log.Warn().Msg("Listening with TLS but ServerURL does not start with https://")
 		}
 		err = r.RunTLS(h.cfg.Addr, h.cfg.TLSCertPath, h.cfg.TLSKeyPath)
 	}
--- a/cmd/headscale/cli/namespaces.go
+++ b/cmd/headscale/cli/namespaces.go
@@ -3,8 +3,10 @@ package cli
 import (
 	"fmt"
 	"log"
+	"strconv"
 	"strings"

+	"github.com/pterm/pterm"
 	"github.com/spf13/cobra"
 )

@@ -94,9 +96,14 @@ var listNamespacesCmd = &cobra.Command{
 			fmt.Println(err)
 			return
 		}
-		fmt.Printf("ID\tName\n")
+
+		d := pterm.TableData{{"ID", "Name", "Created"}}
 		for _, n := range *namespaces {
-			fmt.Printf("%d\t%s\n", n.ID, n.Name)
+			d = append(d, []string{strconv.FormatUint(uint64(n.ID), 10), n.Name, n.CreatedAt.Format("2006-01-02 15:04:05")})
+		}
+		err = pterm.DefaultTable.WithHasHeader().WithData(d).Render()
+		if err != nil {
+			log.Fatal(err)
 		}
 	},
 }
--- a/cmd/headscale/cli/nodes.go
+++ b/cmd/headscale/cli/nodes.go
@@ -8,7 +8,11 @@ import (
 	"time"

 	survey "github.com/AlecAivazis/survey/v2"
+	"github.com/juanfont/headscale"
+	"github.com/pterm/pterm"
 	"github.com/spf13/cobra"
+	"tailscale.com/tailcfg"
+	"tailscale.com/types/wgkey"
 )

 func init() {
@@ -33,7 +37,7 @@ var registerNodeCmd = &cobra.Command{
 	Short: "Registers a machine to your network",
 	Args: func(cmd *cobra.Command, args []string) error {
 		if len(args) < 1 {
-			return fmt.Errorf("Missing parameters")
+			return fmt.Errorf("missing parameters")
 		}
 		return nil
 	},
@@ -85,19 +89,15 @@ var listNodesCmd = &cobra.Command{
 			log.Fatalf("Error getting nodes: %s", err)
 		}

-		fmt.Printf("ID\tname\t\tlast seen\t\tephemeral\n")
-		for _, m := range *machines {
-			var ephemeral bool
-			if m.AuthKey != nil && m.AuthKey.Ephemeral {
-				ephemeral = true
-			}
-			var lastSeen time.Time
-			if m.LastSeen != nil {
-				lastSeen = *m.LastSeen
-			}
-			fmt.Printf("%d\t%s\t%s\t%t\n", m.ID, m.Name, lastSeen.Format("2006-01-02 15:04:05"), ephemeral)
+		d, err := nodesToPtables(*machines)
+		if err != nil {
+			log.Fatalf("Error converting to table: %s", err)
 		}

+		err = pterm.DefaultTable.WithHasHeader().WithData(d).Render()
+		if err != nil {
+			log.Fatal(err)
+		}
 	},
 }

@@ -106,7 +106,7 @@ var deleteNodeCmd = &cobra.Command{
 	Short: "Delete a node",
 	Args: func(cmd *cobra.Command, args []string) error {
 		if len(args) < 1 {
-			return fmt.Errorf("Missing parameters")
+			return fmt.Errorf("missing parameters")
 		}
 		return nil
 	},
@@ -144,3 +144,32 @@ var deleteNodeCmd = &cobra.Command{
 		}
 	},
 }
+
+func nodesToPtables(m []headscale.Machine) (pterm.TableData, error) {
+	d := pterm.TableData{{"ID", "Name", "NodeKey", "IP address", "Ephemeral", "Last seen", "Online"}}
+
+	for _, m := range m {
+		var ephemeral bool
+		if m.AuthKey != nil && m.AuthKey.Ephemeral {
+			ephemeral = true
+		}
+		var lastSeen time.Time
+		if m.LastSeen != nil {
+			lastSeen = *m.LastSeen
+		}
+		nKey, err := wgkey.ParseHex(m.NodeKey)
+		if err != nil {
+			return nil, err
+		}
+		nodeKey := tailcfg.NodeKey(nKey)
+
+		var online string
+		if m.LastSeen.After(time.Now().Add(-5 * time.Minute)) { // TODO: Find a better way to reliably show if online
+			online = pterm.LightGreen("true")
+		} else {
+			online = pterm.LightRed("false")
+		}
+		d = append(d, []string{strconv.FormatUint(m.ID, 10), m.Name, nodeKey.ShortString(), m.IPAddress, strconv.FormatBool(ephemeral), lastSeen.Format("2006-01-02 15:04:05"), online})
+	}
+	return d, nil
+}
--- a/cmd/headscale/cli/preauthkeys.go
+++ b/cmd/headscale/cli/preauthkeys.go
@@ -3,10 +3,12 @@ package cli
 import (
 	"fmt"
 	"log"
+	"strconv"
 	"strings"
 	"time"

 	"github.com/hako/durafmt"
+	"github.com/pterm/pterm"
 	"github.com/spf13/cobra"
 )

@@ -19,6 +21,7 @@ func init() {
 	}
 	preauthkeysCmd.AddCommand(listPreAuthKeys)
 	preauthkeysCmd.AddCommand(createPreAuthKeyCmd)
+	preauthkeysCmd.AddCommand(expirePreAuthKeyCmd)
 	createPreAuthKeyCmd.PersistentFlags().Bool("reusable", false, "Make the preauthkey reusable")
 	createPreAuthKeyCmd.PersistentFlags().Bool("ephemeral", false, "Preauthkey for ephemeral nodes")
 	createPreAuthKeyCmd.Flags().StringP("expiration", "e", "", "Human-readable expiration of the key (30m, 24h, 365d...)")
@@ -53,6 +56,8 @@ var listPreAuthKeys = &cobra.Command{
 			fmt.Printf("Error getting the list of keys: %s\n", err)
 			return
 		}
+
+		d := pterm.TableData{{"ID", "Key", "Reusable", "Ephemeral", "Expiration", "Created"}}
 		for _, k := range *keys {
 			expiration := "-"
 			if k.Expiration != nil {
@@ -66,15 +71,19 @@ var listPreAuthKeys = &cobra.Command{
 				reusable = fmt.Sprintf("%v", k.Reusable)
 			}

-			fmt.Printf(
-				"key: %s, namespace: %s, reusable: %s, ephemeral: %v, expiration: %s, created_at: %s\n",
+			d = append(d, []string{
+				strconv.FormatUint(k.ID, 10),
 				k.Key,
-				k.Namespace.Name,
 				reusable,
-				k.Ephemeral,
+				strconv.FormatBool(k.Ephemeral),
 				expiration,
 				k.CreatedAt.Format("2006-01-02 15:04:05"),
-			)
+			})
+
+		}
+		err = pterm.DefaultTable.WithHasHeader().WithData(d).Render()
+		if err != nil {
+			log.Fatal(err)
 		}
 	},
 }
@@ -116,6 +125,45 @@ var createPreAuthKeyCmd = &cobra.Command{
 			fmt.Println(err)
 			return
 		}
-		fmt.Printf("Key: %s\n", k.Key)
+		fmt.Printf("%s\n", k.Key)
+	},
+}
+
+var expirePreAuthKeyCmd = &cobra.Command{
+	Use:   "expire",
+	Short: "Expire a preauthkey",
+	Args: func(cmd *cobra.Command, args []string) error {
+		if len(args) < 1 {
+			return fmt.Errorf("missing parameters")
+		}
+		return nil
+	},
+	Run: func(cmd *cobra.Command, args []string) {
+		n, err := cmd.Flags().GetString("namespace")
+		if err != nil {
+			log.Fatalf("Error getting namespace: %s", err)
+		}
+		o, _ := cmd.Flags().GetString("output")
+
+		h, err := getHeadscaleApp()
+		if err != nil {
+			log.Fatalf("Error initializing: %s", err)
+		}
+
+		k, err := h.GetPreAuthKey(n, args[0])
+		if err != nil {
+			log.Fatalf("Error getting the key: %s", err)
+		}
+
+		err = h.MarkExpirePreAuthKey(k)
+		if strings.HasPrefix(o, "json") {
+			JsonOutput(k, err, o)
+			return
+		}
+		if err != nil {
+			fmt.Println(err)
+			return
+		}
+		fmt.Println("Expired")
 	},
 }
--- a/cmd/headscale/cli/root.go
+++ b/cmd/headscale/cli/root.go
@@ -2,8 +2,9 @@ package cli

 import (
 	"fmt"
-	"github.com/spf13/cobra"
 	"os"
+
+	"github.com/spf13/cobra"
 )

 func init() {
@@ -16,8 +17,7 @@ var rootCmd = &cobra.Command{
 	Long: `
 headscale is an open source implementation of the Tailscale control server

-Juan Font Alonso <juanfontalonso@gmail.com> - 2021
-https://gitlab.com/juanfont/headscale`,
+https://github.com/juanfont/headscale`,
 }

 func Execute() {
--- a/cmd/headscale/cli/server.go
+++ b/cmd/headscale/cli/server.go
@@ -21,7 +21,7 @@ var serveCmd = &cobra.Command{
 		if err != nil {
 			log.Fatalf("Error initializing: %s", err)
 		}
-		go h.ExpireEphemeralNodes(5000)
+
 		err = h.Serve()
 		if err != nil {
 			log.Fatalf("Error initializing: %s", err)
--- a/cmd/headscale/cli/utils.go
+++ b/cmd/headscale/cli/utils.go
@@ -5,13 +5,13 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"log"
 	"os"
 	"path/filepath"
 	"strings"
 	"time"

 	"github.com/juanfont/headscale"
+	"github.com/rs/zerolog/log"
 	"github.com/spf13/viper"
 	"gopkg.in/yaml.v2"
 	"inet.af/netaddr"
@@ -39,6 +39,8 @@ func LoadConfig(path string) error {

 	viper.SetDefault("ip_prefix", "100.64.0.0/10")

+	viper.SetDefault("log_level", "debug")
+
 	err := viper.ReadInConfig()
 	if err != nil {
 		return fmt.Errorf("Fatal error reading config file: %s \n", err)
@@ -52,7 +54,8 @@ func LoadConfig(path string) error {

 	if (viper.GetString("tls_letsencrypt_hostname") != "") && (viper.GetString("tls_letsencrypt_challenge_type") == "TLS-ALPN-01") && (!strings.HasSuffix(viper.GetString("listen_addr"), ":443")) {
 		// this is only a warning because there could be something sitting in front of headscale that redirects the traffic (e.g. an iptables rule)
-		log.Println("Warning: when using tls_letsencrypt_hostname with TLS-ALPN-01 as challenge type, headscale must be reachable on port 443, i.e. listen_addr should probably end in :443")
+		log.Warn().
+			Msg("Warning: when using tls_letsencrypt_hostname with TLS-ALPN-01 as challenge type, headscale must be reachable on port 443, i.e. listen_addr should probably end in :443")
 	}

 	if (viper.GetString("tls_letsencrypt_challenge_type") != "HTTP-01") && (viper.GetString("tls_letsencrypt_challenge_type") != "TLS-ALPN-01") {
@@ -82,9 +85,13 @@ func absPath(path string) string {
 }

 func getHeadscaleApp() (*headscale.Headscale, error) {
-	derpMap, err := loadDerpMap(absPath(viper.GetString("derp_map_path")))
+	derpPath := absPath(viper.GetString("derp_map_path"))
+	derpMap, err := loadDerpMap(derpPath)
 	if err != nil {
-		log.Printf("Could not load DERP servers map file: %s", err)
+		log.Error().
+			Str("path", derpPath).
+			Err(err).
+			Msg("Could not load DERP servers map file")
 	}

 	// Minimum inactivity time out is keepalive timeout (60s) plus a few seconds
@@ -129,9 +136,13 @@ func getHeadscaleApp() (*headscale.Headscale, error) {
 	// We are doing this here, as in the future could be cool to have it also hot-reload

 	if viper.GetString("acl_policy_path") != "" {
-		err = h.LoadACLPolicy(absPath(viper.GetString("acl_policy_path")))
+		aclPath := absPath(viper.GetString("acl_policy_path"))
+		err = h.LoadACLPolicy(aclPath)
 		if err != nil {
-			log.Printf("Could not load the ACL policy: %s", err)
+			log.Error().
+				Str("path", aclPath).
+				Err(err).
+				Msg("Could not load the ACL policy")
 		}
 	}

@@ -161,24 +172,24 @@ func JsonOutput(result interface{}, errResult error, outputFormat string) {
 		if errResult != nil {
 			j, err = json.MarshalIndent(ErrorOutput{errResult.Error()}, "", "\t")
 			if err != nil {
-				log.Fatalln(err)
+				log.Fatal().Err(err)
 			}
 		} else {
 			j, err = json.MarshalIndent(result, "", "\t")
 			if err != nil {
-				log.Fatalln(err)
+				log.Fatal().Err(err)
 			}
 		}
 	case "json-line":
 		if errResult != nil {
 			j, err = json.Marshal(ErrorOutput{errResult.Error()})
 			if err != nil {
-				log.Fatalln(err)
+				log.Fatal().Err(err)
 			}
 		} else {
 			j, err = json.Marshal(result)
 			if err != nil {
-				log.Fatalln(err)
+				log.Fatal().Err(err)
 			}
 		}
 	}
--- a/cmd/headscale/headscale.go
+++ b/cmd/headscale/headscale.go
@@ -1,15 +1,64 @@
 package main

 import (
-	"log"
+	"os"
+	"time"

+	"github.com/efekarakus/termcolor"
 	"github.com/juanfont/headscale/cmd/headscale/cli"
+	"github.com/rs/zerolog"
+	"github.com/rs/zerolog/log"
+	"github.com/spf13/viper"
 )

 func main() {
+	var colors bool
+	switch l := termcolor.SupportLevel(os.Stderr); l {
+	case termcolor.Level16M:
+		colors = true
+	case termcolor.Level256:
+		colors = true
+	case termcolor.LevelBasic:
+		colors = true
+	default:
+		// no color, return text as is.
+		log.Trace().Msg("Colors are not supported, disabling")
+		colors = false
+	}
+
+	// Adhere to no-color.org manifesto of allowing users to
+	// turn off color in cli/services
+	if _, noColorIsSet := os.LookupEnv("NO_COLOR"); noColorIsSet {
+		log.Trace().Msg("NO_COLOR is set, disabling colors")
+		colors = false
+	}
+
+	zerolog.TimeFieldFormat = zerolog.TimeFormatUnix
+	log.Logger = log.Output(zerolog.ConsoleWriter{
+		Out:        os.Stdout,
+		TimeFormat: time.RFC3339,
+		NoColor:    !colors,
+	})
+
 	err := cli.LoadConfig("")
 	if err != nil {
-		log.Fatalf(err.Error())
+		log.Fatal().Err(err)
+	}
+
+	logLevel := viper.GetString("log_level")
+	switch logLevel {
+	case "trace":
+		zerolog.SetGlobalLevel(zerolog.TraceLevel)
+	case "debug":
+		zerolog.SetGlobalLevel(zerolog.DebugLevel)
+	case "info":
+		zerolog.SetGlobalLevel(zerolog.InfoLevel)
+	case "warn":
+		zerolog.SetGlobalLevel(zerolog.WarnLevel)
+	case "error":
+		zerolog.SetGlobalLevel(zerolog.ErrorLevel)
+	default:
+		zerolog.SetGlobalLevel(zerolog.DebugLevel)
 	}

 	cli.Execute()
--- a/go.mod
+++ b/go.mod
@@ -4,15 +4,30 @@ go 1.16

 require (
 	github.com/AlecAivazis/survey/v2 v2.0.5
+	github.com/Microsoft/go-winio v0.5.0 // indirect
+	github.com/cenkalti/backoff/v4 v4.1.1 // indirect
+	github.com/containerd/continuity v0.1.0 // indirect
+	github.com/docker/cli v20.10.8+incompatible // indirect
+	github.com/docker/docker v20.10.8+incompatible // indirect
+	github.com/efekarakus/termcolor v1.0.1
 	github.com/gin-gonic/gin v1.7.2
 	github.com/hako/durafmt v0.0.0-20210608085754-5c1018a4e16b
 	github.com/klauspost/compress v1.13.1
 	github.com/lib/pq v1.10.2 // indirect
 	github.com/mattn/go-sqlite3 v1.14.7 // indirect
+	github.com/moby/term v0.0.0-20210619224110-3f7ff695adc6 // indirect
+	github.com/opencontainers/runc v1.0.1 // indirect
+	github.com/ory/dockertest/v3 v3.7.0
+	github.com/pterm/pterm v0.12.29
+	github.com/rs/zerolog v1.23.0
 	github.com/spf13/cobra v1.1.3
 	github.com/spf13/viper v1.8.1
+	github.com/stretchr/testify v1.7.0 // indirect
 	github.com/tailscale/hujson v0.0.0-20200924210142-dde312d0d6a2
+	github.com/xeipuuv/gojsonpointer v0.0.0-20190905194746-02993c407bfb // indirect
 	golang.org/x/crypto v0.0.0-20210616213533-5ff15b29337e
+	golang.org/x/net v0.0.0-20210805182204-aaa1db679c0d // indirect
+	golang.org/x/sys v0.0.0-20210809222454-d867a43fc93e // indirect
 	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c
 	gopkg.in/yaml.v2 v2.4.0
 	gorm.io/datatypes v1.0.1
--- a/go.sum
+++ b/go.sum
@@ -1,4 +1,5 @@
 4d63.com/gochecknoglobals v0.0.0-20201008074935-acfc0b28355a/go.mod h1:wfdC5ZjKSPr7CybKEcgJhUOgeAQW1+7WcyK8OvUilfo=
+bazil.org/fuse v0.0.0-20160811212531-371fbbdaa898/go.mod h1:Xbm+BRKSBEpa4q4hTSxohYNQpsxXPbPry4JJWOB3LB8=
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
@@ -40,11 +41,16 @@ cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
 github.com/AlecAivazis/survey/v2 v2.0.5 h1:xpZp+Q55wi5C7Iaze+40onHnEkex1jSc34CltJjOoPM=
 github.com/AlecAivazis/survey/v2 v2.0.5/go.mod h1:WYBhg6f0y/fNYUuesWQc0PKbJcEliGcYHB9sNT3Bg74=
+github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78/go.mod h1:LmzpDX56iTiv29bbRTIsUNlaFfuhWRQBWjQdVyAevI8=
+github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1 h1:UQHMgLO+TxOElx5B5HZ4hJQsoJ/PvUvKRhJHDQXO8P8=
+github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1/go.mod h1:xomTg63KZ2rFqZQzSB4Vz2SUXa1BpHTVz9L5PTmPC4E=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
 github.com/Djarvur/go-err113 v0.0.0-20200511133814-5174e21577d5/go.mod h1:4UJr5HIiMZrwgkSPdsjy2uOQExX/WEILpIrO9UPGuXs=
 github.com/Djarvur/go-err113 v0.1.0/go.mod h1:4UJr5HIiMZrwgkSPdsjy2uOQExX/WEILpIrO9UPGuXs=
 github.com/Knetic/govaluate v3.0.1-0.20171022003610-9aa49832a739+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8Leh48TZaKVeNIfJntJ2wa0=
+github.com/MarvinJWendt/testza v0.1.0 h1:4m+JkB/4e0nUlXdIa10Mg0poUz9CanQKjB3L+xecjAo=
+github.com/MarvinJWendt/testza v0.1.0/go.mod h1:7AxNvlfeHP7Z/hDQ5JtE3OKYT3XFUeLCDE2DQninSqs=
 github.com/Masterminds/goutils v1.1.0/go.mod h1:8cTjp+g8YejhMuvIA5y2vz3BpJxksy863GQaJW2MFNU=
 github.com/Masterminds/semver v1.5.0 h1:H65muMkzWKEuNDnfl9d70GUjFniHKHRbFPGBuZ3QEww=
 github.com/Masterminds/semver v1.5.0/go.mod h1:MB6lktGJrhw8PrUyiEoblNEGEQ+RzHPF078ddwwvV3Y=
@@ -55,8 +61,12 @@ github.com/Masterminds/sprig v2.22.0+incompatible/go.mod h1:y6hNFY5UBTIWBxnzTeuN
 github.com/Microsoft/go-winio v0.4.14/go.mod h1:qXqCSQ3Xa7+6tgxaGTIe4Kpcdsi+P8jBhyzoq1bpyYA=
 github.com/Microsoft/go-winio v0.4.15/go.mod h1:tTuCMEN+UleMWgg9dVx4Hu52b1bJo+59jBh3ajtinzw=
 github.com/Microsoft/go-winio v0.4.16/go.mod h1:XB6nPKklQyQ7GC9LdcBEcBl8PF76WugXOPRXwdLnMv0=
+github.com/Microsoft/go-winio v0.5.0 h1:Elr9Wn+sGKPlkaBvwu4mTrxtmOp3F3yV9qhaHbXGjwU=
+github.com/Microsoft/go-winio v0.5.0/go.mod h1:JPGBdM1cNvN/6ISo+n8V5iA4v8pBzdOpzfwIujj1a84=
 github.com/Netflix/go-expect v0.0.0-20180615182759-c93bf25de8e8 h1:xzYJEypr/85nBpB11F9br+3HUrpgb+fcm5iADzXXYEw=
 github.com/Netflix/go-expect v0.0.0-20180615182759-c93bf25de8e8/go.mod h1:oX5x61PbNXchhh0oikYAH+4Pcfw5LKv21+Jnpr6r6Pc=
+github.com/Nvveen/Gotty v0.0.0-20120604004816-cd527374f1e5 h1:TngWCqHvy9oXAN6lEVMRuU21PR1EtLVZJmdB18Gu3Rw=
+github.com/Nvveen/Gotty v0.0.0-20120604004816-cd527374f1e5/go.mod h1:lmUJ/7eu/Q8D7ML55dXQrVaamCz2vxCfdQBasLZfHKk=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
 github.com/OpenPeeDeeP/depguard v1.0.1/go.mod h1:xsIw86fROiiwelg+jB2uM9PiKihMMmUx/1V+TNhjQvM=
 github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo=
@@ -79,10 +89,13 @@ github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kd
 github.com/apache/thrift v0.12.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
 github.com/apache/thrift v0.13.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
 github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o=
+github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
 github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY=
 github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
 github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5/go.mod h1:wHh0iHkYZB8zMSxRWpUBQtwG5a7fFgvEO+odwuTv2gs=
 github.com/aryann/difflib v0.0.0-20170710044230-e206f873d14a/go.mod h1:DAHtR1m6lCRdSC2Tm3DSWRPvIPr6xNKyeHdqDQSQT+A=
+github.com/atomicgo/cursor v0.0.1 h1:xdogsqa6YYlLfM+GyClC/Lchf7aiMerFiZQn7soTOoU=
+github.com/atomicgo/cursor v0.0.1/go.mod h1:cBON2QmmrysudxNBFthvMtN32r3jxVRIvzkUiF/RuIk=
 github.com/aws/aws-lambda-go v1.13.3/go.mod h1:4UKl9IzQMoD+QF79YdCuzCwp8VbmG4VAQwij/eHl5CU=
 github.com/aws/aws-sdk-go v1.27.0/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
 github.com/aws/aws-sdk-go v1.38.52/go.mod h1:hcU610XS61/+aQV88ixoOzUoG7v3b31pl2zKMmprdro=
@@ -91,20 +104,27 @@ github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24
 github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kBD4zp0CCIs=
+github.com/bits-and-blooms/bitset v1.2.0/go.mod h1:gIdJ4wp64HaoK2YrL1Q5/N7Y16edYb8uY+O0FJTyyDA=
 github.com/bketelsen/crypt v0.0.3-0.20200106085610-5cbc8cc4026c/go.mod h1:MKsuJmJgSg28kpZDP6UIiPt0e0Oz0kqKNGyRaWEPv84=
 github.com/bketelsen/crypt v0.0.4/go.mod h1:aI6NrJ0pMGgvZKL1iVgXLnfIFJtfV+bKCoqOes/6LfM=
 github.com/blakesmith/ar v0.0.0-20190502131153-809d4375e1fb/go.mod h1:PkYb9DJNAwrSvRx5DYA+gUcOIgTGVMNkfSCbZM8cWpI=
 github.com/bombsimon/wsl/v3 v3.1.0/go.mod h1:st10JtZYLE4D5sC7b8xV4zTKZwAQjCH/Hy2Pm1FNZIc=
 github.com/casbin/casbin/v2 v2.1.2/go.mod h1:YcPU1XXisHhLzuxH9coDNf2FbKpjGlbCg3n9yuLkIJQ=
 github.com/cavaliercoder/go-cpio v0.0.0-20180626203310-925f9528c45e/go.mod h1:oDpT4efm8tSYHXV5tHSdRvBet/b/QzxZ+XyyPehvm3A=
+github.com/cenkalti/backoff v2.2.1+incompatible h1:tNowT99t7UNflLxfYYSlKYsBpXdEet03Pg2g16Swow4=
 github.com/cenkalti/backoff v2.2.1+incompatible/go.mod h1:90ReRw6GdpyfrHakVjL/QHaoyV4aDUVVkXQJJJ3NXXM=
+github.com/cenkalti/backoff/v4 v4.1.0/go.mod h1:scbssz8iZGpm3xbr14ovlUdkxfGXNInqkPWOWmG2CLw=
+github.com/cenkalti/backoff/v4 v4.1.1 h1:G2HAfAmvm/GcKan2oOQpBXOd2tT2G57ZnZGWa1PxPBQ=
+github.com/cenkalti/backoff/v4 v4.1.1/go.mod h1:scbssz8iZGpm3xbr14ovlUdkxfGXNInqkPWOWmG2CLw=
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
 github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
 github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/checkpoint-restore/go-criu/v5 v5.0.0/go.mod h1:cfwC0EG7HMUenopBsUf9d89JlCLQIfgVcNsNN0t6T2M=
 github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
 github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
 github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
 github.com/cilium/ebpf v0.5.0/go.mod h1:4tRaxcgiL706VnOzHOdBlY8IEAIdxINsQBcU4xJJXRs=
+github.com/cilium/ebpf v0.6.2/go.mod h1:4tRaxcgiL706VnOzHOdBlY8IEAIdxINsQBcU4xJJXRs=
 github.com/clbanning/x2j v0.0.0-20191024224557-825249438eec/go.mod h1:jMjuTZXRI4dUb/I5gc9Hdhagfvm9+RyrPryS/auMzxE=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
@@ -114,7 +134,12 @@ github.com/cockroachdb/apd v1.1.0 h1:3LFP3629v+1aKXU5Q37mxmRxX/pIu1nijXydLShEq5I
 github.com/cockroachdb/apd v1.1.0/go.mod h1:8Sl8LxpKi29FqWXR16WEFZRNSz3SoPzUzeMeY4+DwBQ=
 github.com/cockroachdb/datadriven v0.0.0-20190809214429-80d97fb3cbaa/go.mod h1:zn76sxSg3SzpJ0PPJaLDCu+Bu0Lg3sKTORVIj19EIF8=
 github.com/codahale/hdrhistogram v0.0.0-20161010025455-3a0bb77429bd/go.mod h1:sE/e/2PUdi/liOCUjSTXgM1o87ZssimdTWN964YiIeI=
+github.com/containerd/console v1.0.2/go.mod h1:ytZPjGgY2oeTkAONYafi2kSj0aYggsf8acV1PGKCbzQ=
+github.com/containerd/continuity v0.0.0-20190827140505-75bee3e2ccb6/go.mod h1:GL3xCUCBDV3CZiTSEKksMWbLE66hEyuu9qyDOOqM47Y=
+github.com/containerd/continuity v0.1.0 h1:UFRRY5JemiAhPZrr/uE0n8fMTLcZsUvySPr1+D7pgr8=
+github.com/containerd/continuity v0.1.0/go.mod h1:ICJu0PwR54nI0yPEnJ6jcS+J7CZAUXrLh8lPo2knzsM=
 github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
+github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
 github.com/coreos/etcd v3.3.13+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
 github.com/coreos/go-iptables v0.6.0/go.mod h1:Qe8Bv2Xik5FyTXwgIbLAnv2sWSBmvWdFETJConOQ//Q=
 github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
@@ -128,8 +153,10 @@ github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfc
 github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
 github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
 github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY=
-github.com/creack/pty v1.1.9 h1:uDmaGzcdjhF4i/plgjmEsriH11Y0o7RKapEf/LDaM3w=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
+github.com/creack/pty v1.1.11 h1:07n33Z8lZxZ2qwegKbObQohDhXDQxiMMz1NOUGYlesw=
+github.com/creack/pty v1.1.11/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
+github.com/cyphar/filepath-securejoin v0.2.2/go.mod h1:FpkQEhXnPnOthhzymB7CGsFk2G9VLXONKD9G7QGMM+4=
 github.com/daixiang0/gci v0.2.4/go.mod h1:+AV8KmHTGxxwp/pY84TLQfFKp2vuKXXJVzF3kD/hfR4=
 github.com/daixiang0/gci v0.2.7/go.mod h1:+4dZ7TISfSmqfAGv59ePaHfNzgGtIkHAhhdKggP1JAc=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -140,12 +167,25 @@ github.com/denisenkom/go-mssqldb v0.9.0 h1:RSohk2RsiZqLZ0zCjtfn3S4Gp4exhpBWHyQ7D
 github.com/denisenkom/go-mssqldb v0.9.0/go.mod h1:xbL0rPBG9cCiLr28tMa8zpbdarY27NDyej4t/EjAShU=
 github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
 github.com/dgryski/go-sip13 v0.0.0-20181026042036-e10d5fee7954/go.mod h1:vAd38F8PWV+bWy6jNmig1y/TA+kYO4g3RSRF0IAv0no=
+github.com/docker/cli v20.10.7+incompatible/go.mod h1:JLrzqnKDaYBop7H2jaqPtU4hHvMKP+vjCwu2uszcLI8=
+github.com/docker/cli v20.10.8+incompatible h1:/zO/6y9IOpcehE49yMRTV9ea0nBpb8OeqSskXLNfH1E=
+github.com/docker/cli v20.10.8+incompatible/go.mod h1:JLrzqnKDaYBop7H2jaqPtU4hHvMKP+vjCwu2uszcLI8=
+github.com/docker/docker v20.10.7+incompatible/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
+github.com/docker/docker v20.10.8+incompatible h1:RVqD337BgQicVCzYrrlhLDWhq6OAD2PJDUg2LsEUvKM=
+github.com/docker/docker v20.10.8+incompatible/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
+github.com/docker/go-connections v0.4.0 h1:El9xVISelRB7BuFusrZozjnkIM5YnzCViNKohAFqRJQ=
+github.com/docker/go-connections v0.4.0/go.mod h1:Gbd7IOopHjR8Iph03tsViu4nIes5XhDvyHbTtUxmeec=
+github.com/docker/go-units v0.4.0 h1:3uh0PgVws3nIA0Q+MwDC8yjEPf9zjRfZZWXZYDct3Tw=
+github.com/docker/go-units v0.4.0/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk=
 github.com/dustin/go-humanize v0.0.0-20171111073723-bb3d318650d4/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
+github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
 github.com/dvyukov/go-fuzz v0.0.0-20210103155950-6a8e9d1f2415/go.mod h1:11Gm+ccJnvAhCNLlf5+cS9KjtbaD5I5zaZpFMsTHWTw=
 github.com/eapache/go-resiliency v1.1.0/go.mod h1:kFI+JgMyC7bLPUVY133qvEBtVayf5mFgVsvEsIPBvNs=
 github.com/eapache/go-xerial-snappy v0.0.0-20180814174437-776d5712da21/go.mod h1:+020luEh2TKB4/GOp8oxxtq0Daoen/Cii55CzbTV6DU=
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@@ -223,6 +263,7 @@ github.com/gogo/googleapis v1.1.0/go.mod h1:gf4bu3Q80BeJ6H1S1vYPm8/ELATdvryBaNFG
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@@ -312,11 +353,15 @@ github.com/google/pprof v0.0.0-20210122040257-d980be63207e/go.mod h1:kpwsk12EmLe
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@@ -374,6 +420,8 @@ github.com/ianlancetaylor/demangle v0.0.0-20181102032728-5e5cf60278f6/go.mod h1:
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@@ -500,6 +548,7 @@ github.com/kunwardeep/paralleltest v1.0.2/go.mod h1:ZPqNm1fVHPllh5LPVujzbVz1JN2G
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@@ -512,6 +561,7 @@ github.com/logrusorgru/aurora v0.0.0-20181002194514-a7b3b318ed4e/go.mod h1:7rIyQ
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@@ -577,6 +630,10 @@ github.com/mitchellh/mapstructure v1.4.1 h1:CpVNEelQCZBooIPDn+AR3NpivK/TIKU8bDxd
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@@ -683,6 +758,8 @@ github.com/rogpeppe/go-internal v1.6.2/go.mod h1:xXDCJY+GAPziupqXw64V24skbSoqbTE
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@@ -691,6 +768,7 @@ github.com/samuel/go-zookeeper v0.0.0-20190923202752-2cc03de413da/go.mod h1:gi+0
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@@ -708,6 +786,8 @@ github.com/sirupsen/logrus v1.4.1/go.mod h1:ni0Sbl8bgC9z8RoU9G6nDWqqs/fq4eDPysMB
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@@ -726,6 +806,7 @@ github.com/spf13/cast v1.3.0/go.mod h1:Qx5cxh0v+4UWYiBimWS+eyWzqEqokIECu5etghLkU
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@@ -736,6 +817,7 @@ github.com/spf13/pflag v1.0.1/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnIn
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@@ -747,6 +829,7 @@ github.com/streadway/handy v0.0.0-20190108123426-d5acb3125c2a/go.mod h1:qNTQ5P5J
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@@ -758,6 +841,7 @@ github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5Cc
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@@ -775,6 +859,7 @@ github.com/tomarrell/wrapcheck v0.0.0-20200807122107-df9e8bcb914d/go.mod h1:yiFB
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@@ -789,10 +874,22 @@ github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyC
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@@ -910,6 +1007,7 @@ golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn
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@@ -945,8 +1043,9 @@ golang.org/x/net v0.0.0-20210119194325-5f4716e94777/go.mod h1:m0MpNAwzfU5UDzcl9v
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@@ -990,6 +1089,7 @@ golang.org/x/sys v0.0.0-20190502145724-3ef323f4f1fd/go.mod h1:h1NjWce9XRLGQEsW7w
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 golang.org/x/sys v0.0.0-20190726091711-fc99dfbffb4e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190813064441-fde4db37ae7a/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -1000,6 +1100,8 @@ golang.org/x/sys v0.0.0-20191001151750-bb3f8db39f24/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20191005200804-aed5e4c7ecf9/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191008105621-543471e840be/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20191113165036-4c7a9d0fe056/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20191115151921-52ab43148777/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191120155948-bd437916bb0e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191204072324-ce4227a45e2e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191220142924-d4481acd189f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -1020,7 +1122,9 @@ golang.org/x/sys v0.0.0-20200519105757-fe76b779f299/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20200523222454-059865788121/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200602225109-6fdc65e7d980/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200803210538-64077c9b5642/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200831180312-196b9ba8737a/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200905004654-be1d3432aa8f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200909081042-eff7692f9009/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201009025420-dfb3f7c4e634/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201018230417-eeed37f84f13/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -1046,14 +1150,19 @@ golang.org/x/sys v0.0.0-20210320140829-1e4c9ba3b0c4/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210403161142-5e06dd20ab57/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210426230700-d19ff857e887/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210525143221-35b2ab0089ea/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20210616094352-59db8d763f22 h1:RqytpXGR1iVNX7psjB3ff8y7sNFinVFvkx1c8SjBkio=
 golang.org/x/sys v0.0.0-20210616094352-59db8d763f22/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20210809222454-d867a43fc93e h1:WUoyKPm6nCo1BnNUvPGnFG3T5DUVem42yDJZZ4CNxMA=
+golang.org/x/sys v0.0.0-20210809222454-d867a43fc93e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201117132131-f5c789dd3221/go.mod h1:Nr5EML6q2oocZ2LXRh80K7BxOlk5/8JxuGnuhpl+muw=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/term v0.0.0-20210220032956-6a3ed077a48d/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210503060354-a79de5458b56/go.mod h1:tfny5GFUkzUvx4ps4ajbZsCe5lw1metzhBm9T3x7oIY=
+golang.org/x/term v0.0.0-20210615171337-6886f2dfbf5b h1:9zKuko04nR4gjZ4+DNjHqRlAJqbJETHwiNKDqTfOjfE=
+golang.org/x/term v0.0.0-20210615171337-6886f2dfbf5b/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
@@ -1090,6 +1199,7 @@ golang.org/x/tools v0.0.0-20190506145303-2d16b83fe98c/go.mod h1:RgjU9mgBXZiqYHBn
 golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/tools v0.0.0-20190606124116-d0a3d012864b/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
 golang.org/x/tools v0.0.0-20190621195816-6e04913cbbac/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
+golang.org/x/tools v0.0.0-20190624222133-a101b041ded4/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
 golang.org/x/tools v0.0.0-20190628153133-6cdbf07be9d0/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
 golang.org/x/tools v0.0.0-20190816200558-6889da9d5479/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20190823170909-c4a336ef6a2f/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
@@ -1328,6 +1438,8 @@ gorm.io/gorm v1.21.6/go.mod h1:F+OptMscr0P2F2qU97WT1WimdH9GaQPoDW7AYd5i2Y0=
 gorm.io/gorm v1.21.9/go.mod h1:F+OptMscr0P2F2qU97WT1WimdH9GaQPoDW7AYd5i2Y0=
 gorm.io/gorm v1.21.11 h1:CxkXW6Cc+VIBlL8yJEHq+Co4RYXdSLiMKNvgoZPjLK4=
 gorm.io/gorm v1.21.11/go.mod h1:F+OptMscr0P2F2qU97WT1WimdH9GaQPoDW7AYd5i2Y0=
+gotest.tools/v3 v3.0.2 h1:kG1BFyqVHuQoVQiR1bWGnfz/fmHvvuiSPIV7rvl360E=
+gotest.tools/v3 v3.0.2/go.mod h1:3SzNCllyD9/Y+b5r9JIKQ474KzkZyqLqEfYqMsX94Bk=
 honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
@@ -1359,5 +1471,3 @@ sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
 sourcegraph.com/sourcegraph/appdash v0.0.0-20190731080439-ebfcffb1b5c0/go.mod h1:hI742Nqp5OhwiqlzhgfbWU4mW4yO10fP+LoT9WOswdU=
 tailscale.com v1.10.0 h1:3EWYxpXkCmXsMh1WgqoEjQ/xalxzxU+YD5ZmtaHS5cY=
 tailscale.com v1.10.0/go.mod h1:kgFF5AZPTltwdXjX2/ci4ghlcO3qKNWVIjD9s39pr8c=
-tailscale.com v1.10.2 h1:0EbwydLGDxw7//yB5/1GTKz3hDJvGTUCajPZZPMDDGQ=
-tailscale.com v1.10.2/go.mod h1:kgFF5AZPTltwdXjX2/ci4ghlcO3qKNWVIjD9s39pr8c=
--- a/integration_test.go
+++ b/integration_test.go
@@ -0,0 +1,335 @@
+// +build integration
+
+package headscale
+
+import (
+	"bytes"
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/ory/dockertest/v3"
+	"github.com/ory/dockertest/v3/docker"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/suite"
+
+	"inet.af/netaddr"
+)
+
+type IntegrationTestSuite struct {
+	suite.Suite
+}
+
+func TestIntegrationTestSuite(t *testing.T) {
+	suite.Run(t, new(IntegrationTestSuite))
+}
+
+var integrationTmpDir string
+var ih Headscale
+
+var pool dockertest.Pool
+var network dockertest.Network
+var headscale dockertest.Resource
+var tailscaleCount int = 5
+var tailscales map[string]dockertest.Resource
+
+func executeCommand(resource *dockertest.Resource, cmd []string) (string, error) {
+	var stdout bytes.Buffer
+	var stderr bytes.Buffer
+
+	exitCode, err := resource.Exec(
+		cmd,
+		dockertest.ExecOptions{
+			StdOut: &stdout,
+			StdErr: &stderr,
+		},
+	)
+	if err != nil {
+		return "", err
+	}
+
+	if exitCode != 0 {
+		fmt.Println("Command: ", cmd)
+		fmt.Println("stdout: ", stdout.String())
+		fmt.Println("stderr: ", stderr.String())
+		return "", fmt.Errorf("command failed with: %s", stderr.String())
+	}
+
+	return stdout.String(), nil
+}
+
+func dockerRestartPolicy(config *docker.HostConfig) {
+	// set AutoRemove to true so that stopped container goes away by itself
+	config.AutoRemove = true
+	config.RestartPolicy = docker.RestartPolicy{
+		Name: "no",
+	}
+}
+
+func (s *IntegrationTestSuite) SetupSuite() {
+	var err error
+	h = Headscale{
+		dbType:   "sqlite3",
+		dbString: "integration_test_db.sqlite3",
+	}
+
+	if ppool, err := dockertest.NewPool(""); err == nil {
+		pool = *ppool
+	} else {
+		log.Fatalf("Could not connect to docker: %s", err)
+	}
+
+	if pnetwork, err := pool.CreateNetwork("headscale-test"); err == nil {
+		network = *pnetwork
+	} else {
+		log.Fatalf("Could not create network: %s", err)
+	}
+
+	headscaleBuildOptions := &dockertest.BuildOptions{
+		Dockerfile: "Dockerfile",
+		ContextDir: ".",
+	}
+
+	tailscaleBuildOptions := &dockertest.BuildOptions{
+		Dockerfile: "Dockerfile.tailscale",
+		ContextDir: ".",
+	}
+
+	currentPath, err := os.Getwd()
+	if err != nil {
+		log.Fatalf("Could not determine current path: %s", err)
+	}
+
+	headscaleOptions := &dockertest.RunOptions{
+		Name: "headscale",
+		Mounts: []string{
+			fmt.Sprintf("%s/integration_test/etc:/etc/headscale", currentPath),
+			fmt.Sprintf("%s/derp.yaml:/etc/headscale/derp.yaml", currentPath),
+		},
+		Networks: []*dockertest.Network{&network},
+		Cmd:      []string{"headscale", "serve"},
+		PortBindings: map[docker.Port][]docker.PortBinding{
+			"8080/tcp": []docker.PortBinding{{HostPort: "8080"}},
+		},
+		Env: []string{},
+	}
+
+	fmt.Println("Creating headscale container")
+	if pheadscale, err := pool.BuildAndRunWithBuildOptions(headscaleBuildOptions, headscaleOptions, dockerRestartPolicy); err == nil {
+		headscale = *pheadscale
+	} else {
+		log.Fatalf("Could not start resource: %s", err)
+	}
+	fmt.Println("Created headscale container")
+
+	fmt.Println("Creating tailscale containers")
+	tailscales = make(map[string]dockertest.Resource)
+	for i := 0; i < tailscaleCount; i++ {
+		hostname := fmt.Sprintf("tailscale%d", i)
+		tailscaleOptions := &dockertest.RunOptions{
+			Name:     hostname,
+			Networks: []*dockertest.Network{&network},
+			Cmd:      []string{"tailscaled", "--tun=userspace-networking", "--socks5-server=localhost:1055"},
+			Env:      []string{},
+		}
+
+		if pts, err := pool.BuildAndRunWithBuildOptions(tailscaleBuildOptions, tailscaleOptions, dockerRestartPolicy); err == nil {
+			tailscales[hostname] = *pts
+		} else {
+			log.Fatalf("Could not start resource: %s", err)
+		}
+		fmt.Printf("Created %s container\n", hostname)
+	}
+
+	// TODO: Replace this logic with something that can be detected on Github Actions
+	fmt.Println("Waiting for headscale to be ready")
+	hostEndpoint := fmt.Sprintf("localhost:%s", headscale.GetPort("8080/tcp"))
+
+	if err := pool.Retry(func() error {
+		url := fmt.Sprintf("http://%s/health", hostEndpoint)
+		resp, err := http.Get(url)
+		if err != nil {
+			return err
+		}
+		if resp.StatusCode != http.StatusOK {
+			return fmt.Errorf("status code not OK")
+		}
+		return nil
+	}); err != nil {
+		log.Fatalf("Could not connect to docker: %s", err)
+	}
+	fmt.Println("headscale container is ready")
+
+	fmt.Println("Creating headscale namespace")
+	result, err := executeCommand(
+		&headscale,
+		[]string{"headscale", "namespaces", "create", "test"},
+	)
+	assert.Nil(s.T(), err)
+
+	fmt.Println("Creating pre auth key")
+	authKey, err := executeCommand(
+		&headscale,
+		[]string{"headscale", "-n", "test", "preauthkeys", "create", "--reusable", "--expiration", "24h"},
+	)
+	assert.Nil(s.T(), err)
+
+	headscaleEndpoint := fmt.Sprintf("http://headscale:%s", headscale.GetPort("8080/tcp"))
+
+	fmt.Printf("Joining tailscale containers to headscale at %s\n", headscaleEndpoint)
+	for hostname, tailscale := range tailscales {
+		command := []string{"tailscale", "up", "-login-server", headscaleEndpoint, "--authkey", strings.TrimSuffix(authKey, "\n"), "--hostname", hostname}
+
+		fmt.Println("Join command:", command)
+		fmt.Printf("Running join command for %s\n", hostname)
+		result, err = executeCommand(
+			&tailscale,
+			command,
+		)
+		fmt.Println("tailscale result: ", result)
+		assert.Nil(s.T(), err)
+		fmt.Printf("%s joined\n", hostname)
+	}
+
+	// The nodes need a bit of time to get their updated maps from headscale
+	// TODO: See if we can have a more deterministic wait here.
+	time.Sleep(20 * time.Second)
+}
+
+func (s *IntegrationTestSuite) TearDownSuite() {
+	if err := pool.Purge(&headscale); err != nil {
+		log.Printf("Could not purge resource: %s\n", err)
+	}
+
+	for _, tailscale := range tailscales {
+		if err := pool.Purge(&tailscale); err != nil {
+			log.Printf("Could not purge resource: %s\n", err)
+		}
+	}
+
+	if err := network.Close(); err != nil {
+		log.Printf("Could not close network: %s\n", err)
+	}
+}
+
+func (s *IntegrationTestSuite) TestListNodes() {
+	fmt.Println("Listing nodes")
+	result, err := executeCommand(
+		&headscale,
+		[]string{"headscale", "-n", "test", "nodes", "list"},
+	)
+	assert.Nil(s.T(), err)
+
+	fmt.Printf("List nodes: \n%s\n", result)
+
+	// Chck that the correct count of host is present in node list
+	lines := strings.Split(result, "\n")
+	assert.Equal(s.T(), len(tailscales), len(lines)-2)
+
+	for hostname, _ := range tailscales {
+		assert.Contains(s.T(), result, hostname)
+	}
+}
+
+func (s *IntegrationTestSuite) TestGetIpAddresses() {
+	ipPrefix := netaddr.MustParseIPPrefix("100.64.0.0/10")
+	ips, err := getIPs()
+	assert.Nil(s.T(), err)
+
+	for hostname, _ := range tailscales {
+		s.T().Run(hostname, func(t *testing.T) {
+			ip := ips[hostname]
+
+			fmt.Printf("IP for %s: %s\n", hostname, ip)
+
+			// c.Assert(ip.Valid(), check.IsTrue)
+			assert.True(t, ip.Is4())
+			assert.True(t, ipPrefix.Contains(ip))
+
+			ips[hostname] = ip
+		})
+	}
+}
+
+func (s *IntegrationTestSuite) TestStatus() {
+	ips, err := getIPs()
+	assert.Nil(s.T(), err)
+
+	for hostname, tailscale := range tailscales {
+		s.T().Run(hostname, func(t *testing.T) {
+			command := []string{"tailscale", "status"}
+
+			fmt.Printf("Getting status for %s\n", hostname)
+			result, err := executeCommand(
+				&tailscale,
+				command,
+			)
+			assert.Nil(t, err)
+			// fmt.Printf("Status for %s: %s", hostname, result)
+
+			// Check if we have as many nodes in status
+			// as we have IPs/tailscales
+			lines := strings.Split(result, "\n")
+			assert.Equal(t, len(ips), len(lines)-1)
+			assert.Equal(t, len(tailscales), len(lines)-1)
+
+			// Check that all hosts is present in all hosts status
+			for ipHostname, ip := range ips {
+				assert.Contains(t, result, ip.String())
+				assert.Contains(t, result, ipHostname)
+			}
+		})
+	}
+}
+
+func (s *IntegrationTestSuite) TestPingAllPeers() {
+	ips, err := getIPs()
+	assert.Nil(s.T(), err)
+
+	for hostname, tailscale := range tailscales {
+		for peername, ip := range ips {
+			s.T().Run(fmt.Sprintf("%s-%s", hostname, peername), func(t *testing.T) {
+				// We currently cant ping ourselves, so skip that.
+				if peername != hostname {
+					command := []string{"tailscale", "ping", "--timeout=1s", "--c=1", ip.String()}
+
+					fmt.Printf("Pinging from %s (%s) to %s (%s)\n", hostname, ips[hostname], peername, ip)
+					result, err := executeCommand(
+						&tailscale,
+						command,
+					)
+					assert.Nil(t, err)
+					fmt.Printf("Result for %s: %s\n", hostname, result)
+					assert.Contains(t, result, "pong")
+				}
+			})
+		}
+	}
+}
+
+func getIPs() (map[string]netaddr.IP, error) {
+	ips := make(map[string]netaddr.IP)
+	for hostname, tailscale := range tailscales {
+		command := []string{"tailscale", "ip"}
+
+		result, err := executeCommand(
+			&tailscale,
+			command,
+		)
+		if err != nil {
+			return nil, err
+		}
+
+		ip, err := netaddr.ParseIP(strings.TrimSuffix(result, "\n"))
+		if err != nil {
+			return nil, err
+		}
+
+		ips[hostname] = ip
+	}
+	return ips, nil
+}
--- a/integration_test/.gitignore
+++ b/integration_test/.gitignore
@@ -0,0 +1,3 @@
+derp.yaml
+*.sqlite
+*.sqlite3
--- a/integration_test/etc/config.json
+++ b/integration_test/etc/config.json
@@ -0,0 +1,11 @@
+{
+  "server_url": "http://headscale:8080",
+  "listen_addr": "0.0.0.0:8080",
+  "private_key_path": "private.key",
+  "derp_map_path": "derp.yaml",
+  "ephemeral_node_inactivity_timeout": "30m",
+  "db_type": "sqlite3",
+  "db_path": "/tmp/integration_test_db.sqlite3",
+  "acl_policy_path": "",
+  "log_level": "trace"
+}
--- a/integration_test/etc/private.key
+++ b/integration_test/etc/private.key
@@ -0,0 +1 @@
+SEmQwCu+tGywQWEUsf93TpTRUvlB7WhnCdHgWrSXjEA=
--- a/k8s/README.md
+++ b/k8s/README.md
@@ -65,7 +65,6 @@ tasks like creating namespaces, authkeys, etc.

 headscale is an open source implementation of the Tailscale control server

-Juan Font Alonso <juanfontalonso@gmail.com> - 2021
 https://gitlab.com/juanfont/headscale

 Usage:
--- a/machine.go
+++ b/machine.go
@@ -3,11 +3,12 @@ package headscale
 import (
 	"encoding/json"
 	"fmt"
-	"log"
 	"sort"
 	"strconv"
 	"time"

+	"github.com/rs/zerolog/log"
+
 	"gorm.io/datatypes"
 	"inet.af/netaddr"
 	"tailscale.com/tailcfg"
@@ -71,6 +72,10 @@ func (m Machine) toNode() (*tailcfg.Node, error) {
 	addrs := []netaddr.IPPrefix{}
 	ip, err := netaddr.ParseIPPrefix(fmt.Sprintf("%s/32", m.IPAddress))
 	if err != nil {
+		log.Trace().
+			Str("func", "toNode").
+			Str("ip", m.IPAddress).
+			Msgf("Failed to parse IP Prefix from IP: %s", m.IPAddress)
 		return nil, err
 	}
 	addrs = append(addrs, ip) // missing the ipv6 ?
@@ -154,10 +159,14 @@ func (m Machine) toNode() (*tailcfg.Node, error) {
 }

 func (h *Headscale) getPeers(m Machine) (*[]*tailcfg.Node, error) {
+	log.Trace().
+		Str("func", "getPeers").
+		Str("machine", m.Name).
+		Msg("Finding peers")
 	machines := []Machine{}
 	if err := h.db.Where("namespace_id = ? AND machine_key <> ? AND registered",
 		m.NamespaceID, m.MachineKey).Find(&machines).Error; err != nil {
-		log.Printf("Error accessing db: %s", err)
+		log.Error().Err(err).Msg("Error accessing db")
 		return nil, err
 	}

@@ -170,6 +179,11 @@ func (h *Headscale) getPeers(m Machine) (*[]*tailcfg.Node, error) {
 		peers = append(peers, peer)
 	}
 	sort.Slice(peers, func(i, j int) bool { return peers[i].ID < peers[j].ID })
+
+	log.Trace().
+		Str("func", "getPeers").
+		Str("machine", m.Name).
+		Msgf("Found peers: %s", tailNodesToString(peers))
 	return &peers, nil
 }

@@ -233,3 +247,25 @@ func (m *Machine) GetHostInfo() (*tailcfg.Hostinfo, error) {
 	}
 	return &hostinfo, nil
 }
+
+func (h *Headscale) notifyChangesToPeers(m *Machine) {
+	peers, _ := h.getPeers(*m)
+	for _, p := range *peers {
+		pUp, ok := h.clientsPolling.Load(uint64(p.ID))
+		if ok {
+			log.Info().
+				Str("func", "notifyChangesToPeers").
+				Str("machine", m.Name).
+				Str("peer", m.Name).
+				Str("address", p.Addresses[0].String()).
+				Msgf("Notifying peer %s (%s)", p.Name, p.Addresses[0])
+			pUp.(chan []byte) <- []byte{}
+		} else {
+			log.Info().
+				Str("func", "notifyChangesToPeers").
+				Str("machine", m.Name).
+				Str("peer", m.Name).
+				Msgf("Peer %s does not appear to be polling", p.Name)
+		}
+	}
+}
--- a/namespaces.go
+++ b/namespaces.go
@@ -4,9 +4,9 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"log"
 	"time"

+	"github.com/rs/zerolog/log"
 	"gorm.io/gorm"
 	"tailscale.com/tailcfg"
 )
@@ -33,7 +33,10 @@ func (h *Headscale) CreateNamespace(name string) (*Namespace, error) {
 	}
 	n.Name = name
 	if err := h.db.Create(&n).Error; err != nil {
-		log.Printf("Could not create row: %s", err)
+		log.Error().
+			Str("func", "CreateNamespace").
+			Err(err).
+			Msg("Could not create row")
 		return nil, err
 	}
 	return &n, nil
@@ -133,7 +136,10 @@ func (h *Headscale) RequestMapUpdates(namespaceID uint) error {
 	names = append(names, namespace.Name)
 	data, err := json.Marshal(names)
 	if err != nil {
-		log.Printf("Could not marshal namespaces_pending_updates: %s", err)
+		log.Error().
+			Str("func", "RequestMapUpdates").
+			Err(err).
+			Msg("Could not marshal namespaces_pending_updates")
 		return err
 	}
 	return h.setValue("namespaces_pending_updates", string(data))
@@ -154,24 +160,16 @@ func (h *Headscale) checkForNamespacesPendingUpdates() {
 		return
 	}
 	for _, name := range names {
-		log.Printf("Sending updates to nodes in namespace %s", name)
+		log.Trace().
+			Str("func", "RequestMapUpdates").
+			Str("machine", name).
+			Msg("Sending updates to nodes in namespace")
 		machines, err := h.ListMachinesInNamespace(name)
 		if err != nil {
 			continue
 		}
 		for _, m := range *machines {
-			peers, _ := h.getPeers(m)
-			h.pollMu.Lock()
-			for _, p := range *peers {
-				pUp, ok := h.clientsPolling[uint64(p.ID)]
-				if ok {
-					log.Printf("[%s] Notifying peer %s (%s)", m.Name, p.Name, p.Addresses[0])
-					pUp <- []byte{}
-				} else {
-					log.Printf("[%s] Peer %s does not appear to be polling", m.Name, p.Name)
-				}
-			}
-			h.pollMu.Unlock()
+			h.notifyChangesToPeers(&m)
 		}
 	}
 	newV, err := h.getValue("namespaces_pending_updates")
@@ -181,7 +179,10 @@ func (h *Headscale) checkForNamespacesPendingUpdates() {
 	if v == newV { // only clear when no changes, so we notified everybody
 		err = h.setValue("namespaces_pending_updates", "")
 		if err != nil {
-			log.Printf("Could not save to KV: %s", err)
+			log.Error().
+				Str("func", "checkForNamespacesPendingUpdates").
+				Err(err).
+				Msg("Could not save to KV")
 			return
 		}
 	}
--- a/poll.go
+++ b/poll.go
@@ -0,0 +1,98 @@
+package headscale
+
+import (
+	"io"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/rs/zerolog/log"
+	"tailscale.com/tailcfg"
+	"tailscale.com/types/wgkey"
+)
+
+func (h *Headscale) PollNetMapStream(
+	c *gin.Context,
+	m Machine,
+	req tailcfg.MapRequest,
+	mKey wgkey.Key,
+	pollData chan []byte,
+	update chan []byte,
+	cancelKeepAlive chan []byte,
+) {
+
+	go h.keepAlive(cancelKeepAlive, pollData, mKey, req, m)
+
+	c.Stream(func(w io.Writer) bool {
+		log.Trace().
+			Str("handler", "PollNetMapStream").
+			Str("machine", m.Name).
+			Msg("Waiting for data to stream...")
+		select {
+
+		case data := <-pollData:
+			log.Trace().
+				Str("handler", "PollNetMapStream").
+				Str("machine", m.Name).
+				Int("bytes", len(data)).
+				Msg("Sending data received via pollData channel")
+			_, err := w.Write(data)
+			if err != nil {
+				log.Error().
+					Str("handler", "PollNetMapStream").
+					Str("machine", m.Name).
+					Err(err).
+					Msg("Cannot write data")
+			}
+			log.Trace().
+				Str("handler", "PollNetMapStream").
+				Str("machine", m.Name).
+				Int("bytes", len(data)).
+				Msg("Data from pollData channel written successfully")
+			now := time.Now().UTC()
+			m.LastSeen = &now
+			h.db.Save(&m)
+			log.Trace().
+				Str("handler", "PollNetMapStream").
+				Str("machine", m.Name).
+				Int("bytes", len(data)).
+				Msg("Machine updated successfully after sending pollData")
+			return true
+
+		case <-update:
+			log.Debug().
+				Str("handler", "PollNetMapStream").
+				Str("machine", m.Name).
+				Msg("Received a request for update")
+			data, err := h.getMapResponse(mKey, req, m)
+			if err != nil {
+				log.Error().
+					Str("handler", "PollNetMapStream").
+					Str("machine", m.Name).
+					Err(err).
+					Msg("Could not get the map update")
+			}
+			_, err = w.Write(*data)
+			if err != nil {
+				log.Error().
+					Str("handler", "PollNetMapStream").
+					Str("machine", m.Name).
+					Err(err).
+					Msg("Could not write the map response")
+			}
+			return true
+
+		case <-c.Request.Context().Done():
+			log.Info().
+				Str("handler", "PollNetMapStream").
+				Str("machine", m.Name).
+				Msg("The client has closed the connection")
+			now := time.Now().UTC()
+			m.LastSeen = &now
+			h.db.Save(&m)
+			cancelKeepAlive <- []byte{}
+			h.clientsPolling.Delete(m.ID)
+			close(update)
+			return false
+		}
+	})
+}
--- a/preauth_keys.go
+++ b/preauth_keys.go
@@ -67,6 +67,28 @@ func (h *Headscale) GetPreAuthKeys(namespaceName string) (*[]PreAuthKey, error)
 	return &keys, nil
 }

+// GetPreAuthKey returns a PreAuthKey for a given key
+func (h *Headscale) GetPreAuthKey(namespace string, key string) (*PreAuthKey, error) {
+	pak, err := h.checkKeyValidity(key)
+	if err != nil {
+		return nil, err
+	}
+
+	if pak.Namespace.Name != namespace {
+		return nil, errors.New("Namespace mismatch")
+	}
+
+	return pak, nil
+}
+
+// MarkExpirePreAuthKey marks a PreAuthKey as expired
+func (h *Headscale) MarkExpirePreAuthKey(k *PreAuthKey) error {
+	if err := h.db.Model(&k).Update("Expiration", time.Now()).Error; err != nil {
+		return err
+	}
+	return nil
+}
+
 // checkKeyValidity does the heavy lifting for validation of the PreAuthKey coming from a node
 // If returns no error and a PreAuthKey, it can be used
 func (h *Headscale) checkKeyValidity(k string) (*PreAuthKey, error) {
--- a/preauth_keys_test.go
+++ b/preauth_keys_test.go
@@ -163,3 +163,20 @@ func (*Suite) TestEphemeralKey(c *check.C) {
 	_, err = h.GetMachine("test7", "testest")
 	c.Assert(err, check.NotNil)
 }
+
+func (*Suite) TestExpirePreauthKey(c *check.C) {
+	n, err := h.CreateNamespace("test3")
+	c.Assert(err, check.IsNil)
+
+	pak, err := h.CreatePreAuthKey(n.Name, true, false, nil)
+	c.Assert(err, check.IsNil)
+	c.Assert(pak.Expiration, check.IsNil)
+
+	err = h.MarkExpirePreAuthKey(pak)
+	c.Assert(err, check.IsNil)
+	c.Assert(pak.Expiration, check.NotNil)
+
+	p, err := h.checkKeyValidity(pak.Key)
+	c.Assert(err, check.Equals, errorAuthKeyExpired)
+	c.Assert(p, check.IsNil)
+}
--- a/routes.go
+++ b/routes.go
@@ -45,21 +45,12 @@ func (h *Headscale) EnableNodeRoute(namespace string, nodeName string, routeStr
 			m.EnabledRoutes = datatypes.JSON(routes)
 			h.db.Save(&m)

-			// THIS IS COMPLETELY USELESS.
-			// The peers map is stored in memory in the server process.
-			// Definetely not accessible from the CLI tool.
-			// We need RPC to the server - or some kind of 'needsUpdate' field in the DB
-			peers, _ := h.getPeers(*m)
-			h.pollMu.Lock()
-			for _, p := range *peers {
-				if pUp, ok := h.clientsPolling[uint64(p.ID)]; ok {
-					pUp <- []byte{}
+			err = h.RequestMapUpdates(m.NamespaceID)
+			if err != nil {
+				return nil, err
 			}
-			}
-			h.pollMu.Unlock()
 			return &rIP, nil
 		}
 	}
-
 	return nil, errors.New("could not find routable range")
 }
--- a/utils.go
+++ b/utils.go
@@ -10,9 +10,11 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
+	"strings"

 	"golang.org/x/crypto/nacl/box"
 	"inet.af/netaddr"
+	"tailscale.com/tailcfg"
 	"tailscale.com/types/wgkey"
 )

@@ -58,6 +60,7 @@ func encode(v interface{}, pubKey *wgkey.Key, privKey *wgkey.Private) ([]byte, e
 	if err != nil {
 		return nil, err
 	}
+
 	return encodeMsg(b, pubKey, privKey)
 }

@@ -139,3 +142,17 @@ func containsIPs(ips []netaddr.IP, ip netaddr.IP) bool {

 	return false
 }
+
+func tailNodesToString(nodes []*tailcfg.Node) string {
+	temp := make([]string, len(nodes))
+
+	for index, node := range nodes {
+		temp[index] = node.Name
+	}
+
+	return fmt.Sprintf("[ %s ](%d)", strings.Join(temp, ", "), len(temp))
+}
+
+func tailMapResponseToString(resp tailcfg.MapResponse) string {
+	return fmt.Sprintf("{ Node: %s, Peers: %s }", resp.Node.Name, tailNodesToString(resp.Peers))
+}
Author	SHA1	Message	Date
Juan Font	47b61c0cea	Merge pull request #86 from juanfont/better-ui Improve tables in CLI	2021-08-16 09:33:47 +02:00
Juan Font	d739ac830f	Merge pull request #87 from juanfont/fix-route-notify Send notifications when enabling a route	2021-08-16 09:25:31 +02:00
Juan Font	26024fedc7	Merge branch 'main' into fix-route-notify	2021-08-16 00:29:38 +02:00
Juan Font	a376b697c0	Send notifications when enabling a route	2021-08-16 00:17:26 +02:00
Juan Font	bc2574680d	Linting	2021-08-15 23:35:03 +02:00
Juan Font	f194b41435	Better table in preauthkeys	2021-08-15 23:29:55 +02:00
Juan Font	350f7da55d	Better table in namespaces	2021-08-15 23:20:38 +02:00
Juan Font	36f5f78f46	pterm dependency	2021-08-15 23:10:50 +02:00
Juan Font	55fe5b0b41	Use pterm table in node list	2021-08-15 23:10:39 +02:00
Kristoffer Dalby	5b1b40ce93	Merge pull request #83 from kradalby/more-integration-tests Improve reliability of PollMapHandler, more integration tests	2021-08-13 16:05:32 +01:00
Kristoffer Dalby	a8d9fdce3c	Uncomment ping test	2021-08-13 11:01:23 +01:00
Kristoffer Dalby	700382cba4	Split stream part of pollhandlermap into its own func	2021-08-13 10:33:50 +01:00
Kristoffer Dalby	9698abbfd5	Resolve merge conflict	2021-08-13 10:33:19 +01:00
Juan Font	5bfcf5c917	Merge pull request #82 from juanfont/really-expire-ephemeral Also notify peers when deleting ephemerals	2021-08-12 22:05:53 +02:00
Juan Font	8eb7d47072	Fixed linting	2021-08-12 21:57:20 +02:00
Juan Font	ab61c87701	Also notify peers when deleting ephemerals	2021-08-12 21:53:37 +02:00
Juan Font	c1e6157847	Expire ephemeral is internal	2021-08-12 21:45:40 +02:00
Juan Font	4c849539fc	Expire the ephemeral nodes in the Serve method	2021-08-12 21:44:12 +02:00
Juan Font	9c2a630055	Merge pull request #81 from kradalby/integration-tests Add Integration tests	2021-08-12 11:15:45 +02:00
Kristoffer Dalby	0e1ddf9715	Set longer timeout for integration tests	2021-08-12 07:36:38 +01:00
Kristoffer Dalby	54da1a4155	Commit the correct integration etc files	2021-08-12 07:05:26 +01:00
Kristoffer Dalby	7141e2ed70	Fix hostname passed to join command	2021-08-11 17:12:39 +01:00
Kristoffer Dalby	c9e5048015	Merge remote-tracking branch 'upstream/main' into integration-tests	2021-08-08 17:57:28 +01:00
Kristoffer Dalby	4e077b053c	Initial work, add integration tests This commit adds integration tests to headscale. They are currently quite simple, but it lays the groundwork for more comprehensive testing and ensuring we dont break things with the official tailscale client. The test works by leveraging Docker (via dockertest) to spin up a Headscale container, and a number of tailscale containers (10). Each tailscale container is joined to the headscale and then "passed on" to the tests. Currently three tests have been implemented: - Have all tailscale containers join headscale (in the setup process) - Get IP from each container (I plan to extend this with cross-ping) - List nodes with headscales CLI and verify all has been registered This test depends on Docker, and currently, I have not looked into hooking it into Github Actions.	2021-08-08 17:50:32 +01:00
Kristoffer Dalby	f973aef80c	Add Dockerfile to build tailscale docker image for integration tests	2021-08-08 17:43:06 +01:00
Kristoffer Dalby	a43bb1bb40	Improve Dockerfile This commit makes several changes to the dockerfile: - Add go.mod and go.sum in a seperate stage, subsequently calling `go mod download` to make it cache dependencies and speed up builds - Use ubuntu:latest (28MB larger) instead of scratch, makes the image a lot easier to debug (e.g. it has a shell and a package manager) - Change ENTRYPOINT to CMD, this makes the behaviour of the image slightly different from a CLI perspective, but makes interacting with the image from code, docker-compose and kubernetes easier.	2021-08-08 17:39:39 +01:00
Kristoffer Dalby	d86123195c	Add a dockerignore file to speed up builds and make cachine better	2021-08-08 17:38:44 +01:00
Kristoffer Dalby	91ffd10192	Remove "Keys: " from create auth key output This is based on the premis that "the user know what command they executed" and therefor know that the output is the key. This makes the command a lot more useful in scripts.	2021-08-08 17:37:23 +01:00
Kristoffer Dalby	642c7824a7	Add trace log for machine failing to parce ip in toNode	2021-08-08 17:37:04 +01:00
Kristoffer Dalby	149279f3d5	Add health endpoint Allow us to tell when the server is up and running and can answer requests	2021-08-08 17:36:25 +01:00
Juan Font	275214920f	Merge pull request #80 from juanfont/delete-pak Add CLI command to mark preauthkeys as expired	2021-08-08 10:52:18 +02:00
Juan Font	0124899759	fixed linting x 2	2021-08-08 00:14:10 +02:00
Juan Font	033136cb9a	fixed linting	2021-08-08 00:13:44 +02:00
Juan Font	05e08e0ac7	Added cmd to expire preauth keys (requested in #78 )	2021-08-08 00:10:30 +02:00
Juan Font	226cb89d97	Added func to expire PAKs	2021-08-07 23:57:52 +02:00
Juan Font	3007c0ec4f	Merge pull request #79 from felixonmars/patch-1 Correct a typo in routes.go	2021-08-07 20:02:16 +02:00
Felix Yan	3fa1ac9c79	Correct a typo in routes.go	2021-08-08 01:52:01 +08:00
Juan Font	bb2ccfddd9	Merge pull request #77 from kradalby/deadlierlocks Remove more deadlocks	2021-08-07 01:05:01 +02:00
Kristoffer Dalby	99fd126219	Remove unused mutex	2021-08-06 21:11:38 +01:00
Kristoffer Dalby	15b8c8f4c5	Remove lock from keepAlive	2021-08-06 20:08:51 +01:00
Kristoffer Dalby	4243885246	Rewrite old lock error msg	2021-08-06 20:03:25 +01:00
Kristoffer Dalby	5bc5c5dc1b	Remove forgotten lock	2021-08-06 20:02:47 +01:00
Juan Font	db4f49901e	Merge pull request #76 from kradalby/no-color-logs Try to detect color support, make color configurable	2021-08-06 08:40:54 +02:00
Kristoffer Dalby	73a00c89ff	Try to detect color support, make color configurable This commit tries to detect if users can render colors in their terminal and only enables color logs if that is true. It also adds no-color.org's NO_COLOR env var support to allow it to be disabled.	2021-08-06 07:29:57 +01:00
Juan Font	8a614dabc0	Headscale is from no-juan	2021-08-06 00:23:07 +02:00
Juan Font	c95cf15731	Fixed log message	2021-08-06 00:21:34 +02:00
Juan Font	e7ce902f9d	Merge pull request #75 from kradalby/syncmap Fix deadlock issue	2021-08-06 00:19:34 +02:00
Juan Font	d421c7b665	Merge pull request #74 from kradalby/deadlock-logging Switch to a structured logger	2021-08-06 00:18:40 +02:00
Kristoffer Dalby	1abc68ccf4	Removes locks causing deadlock This commit removes most of the locks in the PollingMap handler as there was combinations that caused deadlocks. Instead of doing a plain map and doing the locking ourselves, we use sync.Map which handles it for us.	2021-08-05 22:14:37 +01:00
Kristoffer Dalby	575b15e5fa	Add more trace logging	2021-08-05 21:47:06 +01:00
Kristoffer Dalby	a8c8a358d0	Make log keys lowercase	2021-08-05 20:57:47 +01:00
Kristoffer Dalby	cd2ca137c0	Make log_level user configurable	2021-08-05 19:19:25 +01:00
Kristoffer Dalby	0660867a16	Correct url	2021-08-05 18:58:15 +01:00
Kristoffer Dalby	b1200140b8	Convert cli/utils.go	2021-08-05 18:26:49 +01:00
Kristoffer Dalby	d10b57b317	Convert namespaces.go	2021-08-05 18:23:02 +01:00
Kristoffer Dalby	42bf566fff	Convert acls.go	2021-08-05 18:18:18 +01:00
Kristoffer Dalby	0bb2fabc6c	Convert missing from api.go	2021-08-05 18:16:21 +01:00
Kristoffer Dalby	ee704f8ef3	Initial port to zerologger	2021-08-05 18:11:26 +01:00
				`@@ -0,0 +1 @@`
				`SEmQwCu+tGywQWEUsf93TpTRUvlB7WhnCdHgWrSXjEA=`