Brad Fitzpatrick
ec0b23a21f
Add tstest/natlab/vmtest, a high-level framework for running multi-VM
integration tests with mixed OS types (gokrazy + Ubuntu/Debian cloud
images) connected via natlab's vnet virtual network.
The vmtest package provides:
- Env type that orchestrates vnet, QEMU processes, and agent connections
- OS image support (Gokrazy, Ubuntu2404, Debian12) with download/cache
- QEMU launch per OS type (microvm for gokrazy, q35+KVM for cloud)
- Cloud-init seed ISO generation with network-config for multi-NIC
- Cross-compilation of test binaries for cloud VMs
- Debug SSH NIC on cloud VMs for interactive debugging
- Test helpers: ApproveRoutes, HTTPGet, TailscalePing, DumpStatus,
WaitForPeerRoute, SSHExec
TTA enhancements (cmd/tta):
- Parameterize /up (accept-routes, advertise-routes, snat-subnet-routes)
- Add /set, /start-webserver, /http-get endpoints
- /http-get uses local.Client.UserDial for Tailscale-routed requests
- Fix /ping for non-gokrazy systems
TestSubnetRouter exercises a 3-VM subnet router scenario:
client (gokrazy) → subnet-router (Ubuntu, dual-NIC) → backend (gokrazy)
Verifies HTTP access to the backend webserver through the Tailscale
subnet route. Passes in ~30 seconds.
Updates tailscale/tailscale#13038
Change-Id: I165b64af241d37f5f5870e796a52502fc56146fa
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
39 lines
1006 B
Go
39 lines
1006 B
Go
// Copyright (c) Tailscale Inc & contributors
|
|
// SPDX-License-Identifier: BSD-3-Clause
|
|
|
|
package vmtest_test
|
|
|
|
import (
|
|
"fmt"
|
|
"strings"
|
|
"testing"
|
|
|
|
"tailscale.com/tstest/natlab/vmtest"
|
|
"tailscale.com/tstest/natlab/vnet"
|
|
)
|
|
|
|
func TestSubnetRouter(t *testing.T) {
|
|
env := vmtest.New(t)
|
|
|
|
clientNet := env.AddNetwork("2.1.1.1", "192.168.1.1/24", "2000:1::1/64", vnet.EasyNAT)
|
|
internalNet := env.AddNetwork("10.0.0.1/24", "2000:2::1/64")
|
|
|
|
client := env.AddNode("client", clientNet,
|
|
vmtest.OS(vmtest.Gokrazy))
|
|
sr := env.AddNode("subnet-router", clientNet, internalNet,
|
|
vmtest.OS(vmtest.Ubuntu2404),
|
|
vmtest.AdvertiseRoutes("10.0.0.0/24"))
|
|
backend := env.AddNode("backend", internalNet,
|
|
vmtest.OS(vmtest.Gokrazy),
|
|
vmtest.DontJoinTailnet(),
|
|
vmtest.WebServer(8080))
|
|
|
|
env.Start()
|
|
env.ApproveRoutes(sr, "10.0.0.0/24")
|
|
|
|
body := env.HTTPGet(client, fmt.Sprintf("http://%s:8080/", backend.LanIP(internalNet)))
|
|
if !strings.Contains(body, "Hello world I am backend") {
|
|
t.Fatalf("got %q", body)
|
|
}
|
|
}
|