mirror of
https://github.com/tailscale/tailscale.git
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cmd/tailscale/cli,client,ipn: add appc-routes cli command
Allow the user to access information about routes an app connector has learned, such as how many routes for each domain. Fixes tailscale/corp#32624 Signed-off-by: Fran Bull <fran@tailscale.com>
This commit is contained in:
Fran Bull
@@ -77,6 +77,7 @@ tailscale.com/cmd/derper dependencies: (generated by github.com/tailscale/depawa
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google.golang.org/protobuf/runtime/protoimpl from github.com/prometheus/client_model/go+
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google.golang.org/protobuf/types/known/timestamppb from github.com/prometheus/client_golang/prometheus+
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tailscale.com from tailscale.com/version
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tailscale.com/appc from tailscale.com/client/local
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💣 tailscale.com/atomicfile from tailscale.com/cmd/derper+
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tailscale.com/client/local from tailscale.com/derp/derpserver
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tailscale.com/client/tailscale/apitype from tailscale.com/client/local
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@@ -151,6 +152,7 @@ tailscale.com/cmd/derper dependencies: (generated by github.com/tailscale/depawa
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L 💣 tailscale.com/util/dirwalk from tailscale.com/metrics
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tailscale.com/util/dnsname from tailscale.com/hostinfo+
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tailscale.com/util/eventbus from tailscale.com/net/netmon+
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tailscale.com/util/execqueue from tailscale.com/appc
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💣 tailscale.com/util/hashx from tailscale.com/util/deephash
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tailscale.com/util/lineiter from tailscale.com/hostinfo+
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tailscale.com/util/mak from tailscale.com/health+
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@@ -769,7 +769,7 @@ tailscale.com/cmd/k8s-operator dependencies: (generated by github.com/tailscale/
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sigs.k8s.io/yaml from k8s.io/apimachinery/pkg/runtime/serializer/json+
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sigs.k8s.io/yaml/goyaml.v2 from sigs.k8s.io/yaml+
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tailscale.com from tailscale.com/version
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tailscale.com/appc from tailscale.com/ipn/ipnlocal
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tailscale.com/appc from tailscale.com/ipn/ipnlocal+
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💣 tailscale.com/atomicfile from tailscale.com/ipn+
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tailscale.com/client/local from tailscale.com/client/tailscale+
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tailscale.com/client/tailscale from tailscale.com/cmd/k8s-operator+
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153
cmd/tailscale/cli/appcroutes.go
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153
cmd/tailscale/cli/appcroutes.go
Normal file
@@ -0,0 +1,153 @@
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// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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package cli
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import (
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"context"
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"encoding/json"
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"flag"
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"fmt"
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"slices"
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"strings"
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"github.com/peterbourgon/ff/v3/ffcli"
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"tailscale.com/appc"
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)
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var appcRoutesArgs struct {
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all bool
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domainMap bool
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n bool
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}
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var appcRoutesCmd = &ffcli.Command{
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Name: "appc-routes",
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ShortUsage: "tailscale appc-routes",
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Exec: runAppcRoutesInfo,
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ShortHelp: "Print the current app connector routes",
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FlagSet: (func() *flag.FlagSet {
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fs := newFlagSet("appc-routes")
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fs.BoolVar(&appcRoutesArgs.all, "all", false, "Print learned domains and routes and extra policy configured routes.")
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fs.BoolVar(&appcRoutesArgs.domainMap, "map", false, "Print the map of learned domains: [routes].")
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fs.BoolVar(&appcRoutesArgs.n, "n", false, "Print the total number of routes this node advertises.")
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return fs
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})(),
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LongHelp: strings.TrimSpace(`
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The 'tailscale appc-routes' command prints the current App Connector route status.
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By default this command prints the domains configured in the app connector configuration and how many routes have been
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learned for each domain.
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--all prints the routes learned from the domains configured in the app connector configuration; and any extra routes provided
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in the the policy app connector 'routes' field.
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--map prints the routes learned from the domains configured in the app connector configuration.
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-n prints the total number of routes advertised by this device, whether learned, set in the policy, or set locally.
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For more information about App Connectors, refer to
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https://tailscale.com/kb/1281/app-connectors
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`),
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}
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func getAllOutput(ri *appc.RouteInfo) (string, error) {
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domains, err := json.MarshalIndent(ri.Domains, " ", " ")
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if err != nil {
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return "", err
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}
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control, err := json.MarshalIndent(ri.Control, " ", " ")
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if err != nil {
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return "", err
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}
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s := fmt.Sprintf(`Learned Routes
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==============
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%s
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Routes from Policy
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==================
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%s
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`, domains, control)
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return s, nil
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}
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type domainCount struct {
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domain string
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count int
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}
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func getSummarizeLearnedOutput(ri *appc.RouteInfo) string {
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x := make([]domainCount, len(ri.Domains))
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i := 0
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maxDomainWidth := 0
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for k, v := range ri.Domains {
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if len(k) > maxDomainWidth {
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maxDomainWidth = len(k)
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}
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x[i] = domainCount{domain: k, count: len(v)}
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i++
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}
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slices.SortFunc(x, func(i, j domainCount) int {
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if i.count > j.count {
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return -1
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}
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if i.count < j.count {
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return 1
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}
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if i.domain > j.domain {
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return 1
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}
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if i.domain < j.domain {
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return -1
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}
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return 0
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})
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s := ""
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fmtString := fmt.Sprintf("%%-%ds %%d\n", maxDomainWidth) // eg "%-10s %d\n"
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for _, dc := range x {
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s += fmt.Sprintf(fmtString, dc.domain, dc.count)
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}
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return s
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}
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func runAppcRoutesInfo(ctx context.Context, args []string) error {
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prefs, err := localClient.GetPrefs(ctx)
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if err != nil {
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return err
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}
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if !prefs.AppConnector.Advertise {
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fmt.Println("not a connector")
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return nil
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}
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if appcRoutesArgs.n {
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fmt.Println(len(prefs.AdvertiseRoutes))
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return nil
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}
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routeInfo, err := localClient.GetAppConnectorRouteInfo(ctx)
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if err != nil {
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return err
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}
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if appcRoutesArgs.domainMap {
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domains, err := json.Marshal(routeInfo.Domains)
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if err != nil {
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return err
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}
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fmt.Println(string(domains))
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return nil
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}
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if appcRoutesArgs.all {
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s, err := getAllOutput(&routeInfo)
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if err != nil {
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return err
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}
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fmt.Println(s)
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return nil
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}
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fmt.Print(getSummarizeLearnedOutput(&routeInfo))
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return nil
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}
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@@ -276,6 +276,7 @@ change in the future.
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idTokenCmd,
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configureHostCmd(),
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systrayCmd,
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appcRoutesCmd,
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),
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FlagSet: rootfs,
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Exec: func(ctx context.Context, args []string) error {
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@@ -70,6 +70,7 @@ tailscale.com/cmd/tailscale dependencies: (generated by github.com/tailscale/dep
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software.sslmate.com/src/go-pkcs12 from tailscale.com/cmd/tailscale/cli
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software.sslmate.com/src/go-pkcs12/internal/rc2 from software.sslmate.com/src/go-pkcs12
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tailscale.com from tailscale.com/version
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tailscale.com/appc from tailscale.com/client/local+
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💣 tailscale.com/atomicfile from tailscale.com/cmd/tailscale/cli+
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tailscale.com/client/local from tailscale.com/client/tailscale+
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L tailscale.com/client/systray from tailscale.com/cmd/tailscale/cli
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@@ -168,6 +169,7 @@ tailscale.com/cmd/tailscale dependencies: (generated by github.com/tailscale/dep
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L 💣 tailscale.com/util/dirwalk from tailscale.com/metrics
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tailscale.com/util/dnsname from tailscale.com/cmd/tailscale/cli+
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tailscale.com/util/eventbus from tailscale.com/client/local+
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tailscale.com/util/execqueue from tailscale.com/appc
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tailscale.com/util/groupmember from tailscale.com/client/web
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💣 tailscale.com/util/hashx from tailscale.com/util/deephash
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tailscale.com/util/httpm from tailscale.com/client/tailscale+
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@@ -51,7 +51,7 @@ tailscale.com/cmd/tailscaled dependencies: (generated by github.com/tailscale/de
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💣 go4.org/mem from tailscale.com/control/controlbase+
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go4.org/netipx from tailscale.com/ipn/ipnlocal+
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tailscale.com from tailscale.com/version
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tailscale.com/appc from tailscale.com/ipn/ipnlocal
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tailscale.com/appc from tailscale.com/ipn/ipnlocal+
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tailscale.com/atomicfile from tailscale.com/ipn+
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tailscale.com/client/tailscale/apitype from tailscale.com/ipn/ipnauth+
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tailscale.com/clientupdate from tailscale.com/ipn/ipnlocal+
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@@ -240,7 +240,7 @@ tailscale.com/cmd/tailscaled dependencies: (generated by github.com/tailscale/de
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gvisor.dev/gvisor/pkg/tcpip/transport/udp from gvisor.dev/gvisor/pkg/tcpip/adapters/gonet+
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gvisor.dev/gvisor/pkg/waiter from gvisor.dev/gvisor/pkg/context+
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tailscale.com from tailscale.com/version
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tailscale.com/appc from tailscale.com/ipn/ipnlocal
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tailscale.com/appc from tailscale.com/ipn/ipnlocal+
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💣 tailscale.com/atomicfile from tailscale.com/ipn+
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LD tailscale.com/chirp from tailscale.com/cmd/tailscaled
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tailscale.com/client/local from tailscale.com/client/web+
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@@ -211,7 +211,7 @@ tailscale.com/cmd/tsidp dependencies: (generated by github.com/tailscale/depawar
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gvisor.dev/gvisor/pkg/tcpip/transport/udp from gvisor.dev/gvisor/pkg/tcpip/adapters/gonet+
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gvisor.dev/gvisor/pkg/waiter from gvisor.dev/gvisor/pkg/context+
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tailscale.com from tailscale.com/version
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tailscale.com/appc from tailscale.com/ipn/ipnlocal
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tailscale.com/appc from tailscale.com/ipn/ipnlocal+
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💣 tailscale.com/atomicfile from tailscale.com/ipn+
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tailscale.com/client/local from tailscale.com/client/web+
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tailscale.com/client/tailscale from tailscale.com/internal/client/tailscale
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