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cmd/tailscaled: allow setting env via linux cmdline for integration tests
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Browse Source 
Updates #13038

Change-Id: I51e016d0eb7c14647159706c08f017fdedd68e2a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick 2024-08-09 12:29:20 -07:00 committed by Brad Fitzpatrick
parent ce4413a0bc
commit 2e32abc3e2
6 changed files with 28 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
cmd/tailscaled/tailscaled.go
View File

@ -35,6 +35,7 @@
"tailscale.com/control/controlclient"
"tailscale.com/drive/driveimpl"
"tailscale.com/envknob"
"tailscale.com/hostinfo"
"tailscale.com/ipn"
"tailscale.com/ipn/conffile"
"tailscale.com/ipn/ipnlocal"
@ -154,6 +155,7 @@ func defaultPort() uint16 {
func main() {
envknob.PanicIfAnyEnvCheckedInInit()
envknob.ApplyDiskConfig()
applyIntegrationTestEnvKnob()
printVersion := false
flag.IntVar(&args.verbose, "verbose", 0, "log verbosity level; 0 is default, 1 or higher are increasingly verbose")
@ -895,3 +897,24 @@ func dieOnPipeReadErrorOfFD(fd int) {
f.Read(make([]byte, 1))
os.Exit(1)
}
// applyIntegrationTestEnvKnob applies the tailscaled.env=... environment
// variables specified on the Linux kernel command line, if the VM is being
// run in NATLab integration tests.
//
// They're specified as: tailscaled.env=FOO=bar tailscaled.env=BAR=baz
func applyIntegrationTestEnvKnob() {
if runtime.GOOS != "linux" || !hostinfo.IsNATLabGuestVM() {
return
}
cmdLine, _ := os.ReadFile("/proc/cmdline")
for _, s := range strings.Fields(string(cmdLine)) {
suf, ok := strings.CutPrefix(s, "tailscaled.env=")
if !ok {
continue
}
if k, v, ok := strings.Cut(suf, "="); ok {
envknob.Setenv(k, v)
}
}
}

1
tstest/integration/tailscaled_deps_test_darwin.go
View File

@ -18,6 +18,7 @@
_ "tailscale.com/drive/driveimpl"
_ "tailscale.com/envknob"
_ "tailscale.com/health"
_ "tailscale.com/hostinfo"
_ "tailscale.com/ipn"
_ "tailscale.com/ipn/conffile"
_ "tailscale.com/ipn/ipnlocal"

1
tstest/integration/tailscaled_deps_test_freebsd.go
View File

@ -18,6 +18,7 @@
_ "tailscale.com/drive/driveimpl"
_ "tailscale.com/envknob"
_ "tailscale.com/health"
_ "tailscale.com/hostinfo"
_ "tailscale.com/ipn"
_ "tailscale.com/ipn/conffile"
_ "tailscale.com/ipn/ipnlocal"

1
tstest/integration/tailscaled_deps_test_linux.go
View File

@ -18,6 +18,7 @@
_ "tailscale.com/drive/driveimpl"
_ "tailscale.com/envknob"
_ "tailscale.com/health"
_ "tailscale.com/hostinfo"
_ "tailscale.com/ipn"
_ "tailscale.com/ipn/conffile"
_ "tailscale.com/ipn/ipnlocal"

1
tstest/integration/tailscaled_deps_test_openbsd.go
View File

@ -18,6 +18,7 @@
_ "tailscale.com/drive/driveimpl"
_ "tailscale.com/envknob"
_ "tailscale.com/health"
_ "tailscale.com/hostinfo"
_ "tailscale.com/ipn"
_ "tailscale.com/ipn/conffile"
_ "tailscale.com/ipn/ipnlocal"

1
tstest/integration/tailscaled_deps_test_windows.go
View File

@ -25,6 +25,7 @@
_ "tailscale.com/drive/driveimpl"
_ "tailscale.com/envknob"
_ "tailscale.com/health"
_ "tailscale.com/hostinfo"
_ "tailscale.com/ipn"
_ "tailscale.com/ipn/conffile"
_ "tailscale.com/ipn/ipnlocal"