//go:build integration // +build integration package headscale import ( "bytes" "fmt" "strings" "time" "github.com/ory/dockertest/v3" "github.com/ory/dockertest/v3/docker" "inet.af/netaddr" ) const DOCKER_EXECUTE_TIMEOUT = 10 * time.Second var ( IpPrefix4 = netaddr.MustParseIPPrefix("100.64.0.0/10") IpPrefix6 = netaddr.MustParseIPPrefix("fd7a:115c:a1e0::/48") tailscaleVersions = []string{"head", "unstable", "1.22.2", "1.20.4", "1.18.2", "1.16.2", "1.14.3", "1.12.3"} ) type TestNamespace struct { count int tailscales map[string]dockertest.Resource } type ExecuteCommandConfig struct { timeout time.Duration } type ExecuteCommandOption func(*ExecuteCommandConfig) error func ExecuteCommandTimeout(timeout time.Duration) ExecuteCommandOption { return ExecuteCommandOption(func(conf *ExecuteCommandConfig) error { conf.timeout = timeout return nil }) } func ExecuteCommand( resource *dockertest.Resource, cmd []string, env []string, options ...ExecuteCommandOption, ) (string, error) { var stdout bytes.Buffer var stderr bytes.Buffer execConfig := ExecuteCommandConfig{ timeout: DOCKER_EXECUTE_TIMEOUT, } for _, opt := range options { if err := opt(&execConfig); err != nil { return "", fmt.Errorf("execute-command/options: %w", err) } } type result struct { exitCode int err error } resultChan := make(chan result, 1) // Run your long running function in it's own goroutine and pass back it's // response into our channel. go func() { exitCode, err := resource.Exec( cmd, dockertest.ExecOptions{ Env: append(env, "HEADSCALE_LOG_LEVEL=disabled"), StdOut: &stdout, StdErr: &stderr, }, ) resultChan <- result{exitCode, err} }() // Listen on our channel AND a timeout channel - which ever happens first. select { case res := <-resultChan: if res.err != nil { return "", res.err } if res.exitCode != 0 { fmt.Println("Command: ", cmd) fmt.Println("stdout: ", stdout.String()) fmt.Println("stderr: ", stderr.String()) return "", fmt.Errorf("command failed with: %s", stderr.String()) } return stdout.String(), nil case <-time.After(execConfig.timeout): return "", fmt.Errorf("command timed out after %s", execConfig.timeout) } } func DockerRestartPolicy(config *docker.HostConfig) { // set AutoRemove to true so that stopped container goes away by itself on error *immediately*. // when set to false, containers remain until the end of the integration test. config.AutoRemove = false config.RestartPolicy = docker.RestartPolicy{ Name: "no", } } func DockerAllowLocalIPv6(config *docker.HostConfig) { if config.Sysctls == nil { config.Sysctls = make(map[string]string, 1) } config.Sysctls["net.ipv6.conf.all.disable_ipv6"] = "0" } func DockerAllowNetworkAdministration(config *docker.HostConfig) { config.CapAdd = append(config.CapAdd, "NET_ADMIN") config.Mounts = append(config.Mounts, docker.HostMount{ Type: "bind", Source: "/dev/net/tun", Target: "/dev/net/tun", }) } func getDockerBuildOptions(version string) *dockertest.BuildOptions { var tailscaleBuildOptions *dockertest.BuildOptions switch version { case "head": tailscaleBuildOptions = &dockertest.BuildOptions{ Dockerfile: "Dockerfile.tailscale-HEAD", ContextDir: ".", BuildArgs: []docker.BuildArg{}, } case "unstable": tailscaleBuildOptions = &dockertest.BuildOptions{ Dockerfile: "Dockerfile.tailscale", ContextDir: ".", BuildArgs: []docker.BuildArg{ { Name: "TAILSCALE_VERSION", Value: "*", // Installs the latest version https://askubuntu.com/a/824926 }, { Name: "TAILSCALE_CHANNEL", Value: "unstable", }, }, } default: tailscaleBuildOptions = &dockertest.BuildOptions{ Dockerfile: "Dockerfile.tailscale", ContextDir: ".", BuildArgs: []docker.BuildArg{ { Name: "TAILSCALE_VERSION", Value: version, }, { Name: "TAILSCALE_CHANNEL", Value: "stable", }, }, } } return tailscaleBuildOptions } func getIPs( tailscales map[string]dockertest.Resource, ) (map[string][]netaddr.IP, error) { ips := make(map[string][]netaddr.IP) for hostname, tailscale := range tailscales { command := []string{"tailscale", "ip"} result, err := ExecuteCommand( &tailscale, command, []string{}, ) if err != nil { return nil, err } for _, address := range strings.Split(result, "\n") { address = strings.TrimSuffix(address, "\n") if len(address) < 1 { continue } ip, err := netaddr.ParseIP(address) if err != nil { return nil, err } ips[hostname] = append(ips[hostname], ip) } } return ips, nil }