cmd/{derper,derpprobe}: add --version flag

Fixes #11582

Change-Id: If99fc1ab6b89d624fbb07bd104dd882d2c7b50b4
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick 2024-04-02 11:55:33 -07:00 committed by Brad Fitzpatrick
parent 1535d0feca
commit 1c259100b0
2 changed files with 22 additions and 10 deletions

View File

@ -36,19 +36,21 @@
"tailscale.com/tsweb"
"tailscale.com/types/key"
"tailscale.com/types/logger"
"tailscale.com/version"
)
var (
dev = flag.Bool("dev", false, "run in localhost development mode (overrides -a)")
addr = flag.String("a", ":443", "server HTTP/HTTPS listen address, in form \":port\", \"ip:port\", or for IPv6 \"[ip]:port\". If the IP is omitted, it defaults to all interfaces. Serves HTTPS if the port is 443 and/or -certmode is manual, otherwise HTTP.")
httpPort = flag.Int("http-port", 80, "The port on which to serve HTTP. Set to -1 to disable. The listener is bound to the same IP (if any) as specified in the -a flag.")
stunPort = flag.Int("stun-port", 3478, "The UDP port on which to serve STUN. The listener is bound to the same IP (if any) as specified in the -a flag.")
configPath = flag.String("c", "", "config file path")
certMode = flag.String("certmode", "letsencrypt", "mode for getting a cert. possible options: manual, letsencrypt")
certDir = flag.String("certdir", tsweb.DefaultCertDir("derper-certs"), "directory to store LetsEncrypt certs, if addr's port is :443")
hostname = flag.String("hostname", "derp.tailscale.com", "LetsEncrypt host name, if addr's port is :443")
runSTUN = flag.Bool("stun", true, "whether to run a STUN server. It will bind to the same IP (if any) as the --addr flag value.")
runDERP = flag.Bool("derp", true, "whether to run a DERP server. The only reason to set this false is if you're decommissioning a server but want to keep its bootstrap DNS functionality still running.")
dev = flag.Bool("dev", false, "run in localhost development mode (overrides -a)")
versionFlag = flag.Bool("version", false, "print version and exit")
addr = flag.String("a", ":443", "server HTTP/HTTPS listen address, in form \":port\", \"ip:port\", or for IPv6 \"[ip]:port\". If the IP is omitted, it defaults to all interfaces. Serves HTTPS if the port is 443 and/or -certmode is manual, otherwise HTTP.")
httpPort = flag.Int("http-port", 80, "The port on which to serve HTTP. Set to -1 to disable. The listener is bound to the same IP (if any) as specified in the -a flag.")
stunPort = flag.Int("stun-port", 3478, "The UDP port on which to serve STUN. The listener is bound to the same IP (if any) as specified in the -a flag.")
configPath = flag.String("c", "", "config file path")
certMode = flag.String("certmode", "letsencrypt", "mode for getting a cert. possible options: manual, letsencrypt")
certDir = flag.String("certdir", tsweb.DefaultCertDir("derper-certs"), "directory to store LetsEncrypt certs, if addr's port is :443")
hostname = flag.String("hostname", "derp.tailscale.com", "LetsEncrypt host name, if addr's port is :443")
runSTUN = flag.Bool("stun", true, "whether to run a STUN server. It will bind to the same IP (if any) as the --addr flag value.")
runDERP = flag.Bool("derp", true, "whether to run a DERP server. The only reason to set this false is if you're decommissioning a server but want to keep its bootstrap DNS functionality still running.")
meshPSKFile = flag.String("mesh-psk-file", defaultMeshPSKFile(), "if non-empty, path to file containing the mesh pre-shared key file. It should contain some hex string; whitespace is trimmed.")
meshWith = flag.String("mesh-with", "", "optional comma-separated list of hostnames to mesh with; the server's own hostname can be in the list")
@ -129,6 +131,10 @@ func writeNewConfig() config {
func main() {
flag.Parse()
if *versionFlag {
fmt.Println(version.Long())
return
}
ctx, cancel := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
defer cancel()

View File

@ -16,10 +16,12 @@
"tailscale.com/prober"
"tailscale.com/tsweb"
"tailscale.com/version"
)
var (
derpMapURL = flag.String("derp-map", "https://login.tailscale.com/derpmap/default", "URL to DERP map (https:// or file://)")
versionFlag = flag.Bool("version", false, "print version and exit")
listen = flag.String("listen", ":8030", "HTTP listen address")
probeOnce = flag.Bool("once", false, "probe once and print results, then exit; ignores the listen flag")
spread = flag.Bool("spread", true, "whether to spread probing over time")
@ -33,6 +35,10 @@
func main() {
flag.Parse()
if *versionFlag {
fmt.Println(version.Long())
return
}
p := prober.New().WithSpread(*spread).WithOnce(*probeOnce).WithMetricNamespace("derpprobe")
opts := []prober.DERPOpt{