vnet: don't hard-code bradfitz or maisem in paths

Updates #13038

Change-Id: Ie8c7591fac3800bb3b7f8c35356cce309fd3c164
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
dependabot/go_modules/github.com/docker/docker-26.1.5incompatible
Brad Fitzpatrick 3 months ago committed by Maisem Ali
parent 6798f8ea88
commit 082e46b48d

@ -2,4 +2,4 @@ module gokrazy/build/tsapp
go 1.22.2
require github.com/tailscale/gokrazy-kernel v0.0.0-20240530042707-3f95c886bcf2 // indirect
require github.com/tailscale/gokrazy-kernel v0.0.0-20240728225134-3d23beabda2e // indirect

@ -1,2 +1,4 @@
github.com/tailscale/gokrazy-kernel v0.0.0-20240530042707-3f95c886bcf2 h1:xzf+cMvBJBcA/Av7OTWBa0Tjrbfcy00TeatJeJt6zrY=
github.com/tailscale/gokrazy-kernel v0.0.0-20240530042707-3f95c886bcf2/go.mod h1:7Mth+m9bq2IHusSsexMNyupHWPL8RxwOuSvBlSGtgDY=
github.com/tailscale/gokrazy-kernel v0.0.0-20240728225134-3d23beabda2e h1:tyUUgeRPGHjCZWycRnhdx8Lx9DRkjl3WsVUxYMrVBOw=
github.com/tailscale/gokrazy-kernel v0.0.0-20240728225134-3d23beabda2e/go.mod h1:7Mth+m9bq2IHusSsexMNyupHWPL8RxwOuSvBlSGtgDY=

@ -14,15 +14,18 @@ import (
"os"
"os/exec"
"path/filepath"
"strings"
"sync"
"testing"
"time"
"golang.org/x/mod/modfile"
"golang.org/x/sync/errgroup"
"tailscale.com/client/tailscale"
"tailscale.com/ipn/ipnstate"
"tailscale.com/tailcfg"
"tailscale.com/tstest/natlab/vnet"
"tailscale.com/types/logger"
)
type natTest struct {
@ -30,13 +33,27 @@ type natTest struct {
base string // base image
tempDir string // for qcow2 images
vnet *vnet.Server
kernel string // linux kernel path
}
func newNatTest(tb testing.TB) *natTest {
root, err := os.Getwd()
if err != nil {
tb.Fatal(err)
}
modRoot := filepath.Join(root, "../../..")
linuxKernel, err := findKernelPath(filepath.Join(modRoot, "gokrazy/tsapp/builddir/github.com/tailscale/gokrazy-kernel/go.mod"))
if err != nil {
tb.Fatalf("findKernelPath: %v", err)
}
tb.Logf("found kernel: %v", linuxKernel)
nt := &natTest{
tb: tb,
tempDir: tb.TempDir(),
base: "/Users/maisem/dev/tailscale.com/gokrazy/tsapp.qcow2",
base: filepath.Join(modRoot, "gokrazy/tsapp.qcow2"),
kernel: linuxKernel,
}
if _, err := os.Stat(nt.base); err != nil {
@ -45,6 +62,27 @@ func newNatTest(tb testing.TB) *natTest {
return nt
}
func findKernelPath(goMod string) (string, error) {
b, err := os.ReadFile(goMod)
if err != nil {
return "", err
}
mf, err := modfile.Parse("go.mod", b, nil)
if err != nil {
return "", err
}
goModB, err := exec.Command("go", "env", "GOMODCACHE").CombinedOutput()
if err != nil {
return "", err
}
for _, r := range mf.Require {
if r.Mod.Path == "github.com/tailscale/gokrazy-kernel" {
return strings.TrimSpace(string(goModB)) + "/" + r.Mod.String() + "/vmlinuz", nil
}
}
return "", fmt.Errorf("failed to find kernel in %v", goMod)
}
type addNodeFunc func(c *vnet.Config) *vnet.Node
func easy(c *vnet.Config) *vnet.Node {
@ -123,7 +161,7 @@ func (nt *natTest) runTest(node1, node2 addNodeFunc) {
"-M", "microvm,isa-serial=off",
"-m", "1G",
"-nodefaults", "-no-user-config", "-nographic",
"-kernel", "/Users/maisem/dev/github.com/tailscale/gokrazy-kernel/vmlinuz",
"-kernel", nt.kernel,
"-append", "console=hvc0 root=PARTUUID=60c24cc1-f3f9-427a-8199-dd02023b0001/PARTNROFF=1 ro init=/gokrazy/init panic=10 oops=panic pci=off nousb tsc=unstable clocksource=hpet tailscale-tta=1",
"-drive", "id=blk0,file="+disk+",format=qcow2",
"-device", "virtio-blk-device,drive=blk0",
@ -185,7 +223,7 @@ func (nt *natTest) runTest(node1, node2 addNodeFunc) {
}
route, err := ping(ctx, lc1, sts[1].Self.TailscaleIPs[0])
t.Logf("ping route: %v, %v", route, err)
t.Logf("ping route: %v, %v", logger.AsJSON(route), err)
}
func ping(ctx context.Context, c *vnet.NodeAgentClient, target netip.Addr) (*ipnstate.PingResult, error) {

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