move all go files from root to hscontrol

Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>

hscontrol/integration_common_test.go

@@ -0,0 +1,271 @@
+// nolint
+package headscale
+
+import (
+	"bytes"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"net/netip"
+	"os"
+	"strconv"
+	"time"
+
+	v1 "github.com/juanfont/headscale/gen/go/headscale/v1"
+	"github.com/ory/dockertest/v3"
+	"github.com/ory/dockertest/v3/docker"
+)
+
+const (
+	headscaleNetwork       = "headscale-test"
+	headscaleHostname      = "headscale"
+	DOCKER_EXECUTE_TIMEOUT = 10 * time.Second
+)
+
+var (
+	errEnvVarEmpty = errors.New("getenv: environment variable empty")
+
+	IpPrefix4 = netip.MustParsePrefix("100.64.0.0/10")
+	IpPrefix6 = netip.MustParsePrefix("fd7a:115c:a1e0::/48")
+
+	tailscaleVersions = []string{
+		"head",
+		"unstable",
+		"1.38.4",
+		"1.36.2",
+		"1.34.2",
+		"1.32.3",
+		"1.30.2",
+		"1.28.0",
+		"1.26.2",
+		"1.24.2",
+		"1.22.2",
+		"1.20.4",
+		"1.18.2",
+		"1.16.2",
+		"1.14.3",
+		"1.12.3",
+	}
+)
+
+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, 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 stdout.String(), stderr.String(), res.err
+		}
+
+		if res.exitCode != 0 {
+			fmt.Println("Command: ", cmd)
+			fmt.Println("stdout: ", stdout.String())
+			fmt.Println("stderr: ", stderr.String())
+
+			return stdout.String(), stderr.String(), fmt.Errorf(
+				"command failed with: %s",
+				stderr.String(),
+			)
+		}
+
+		return stdout.String(), stderr.String(), nil
+	case <-time.After(execConfig.timeout):
+
+		return stdout.String(), stderr.String(), 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 getDNSNames(
+	headscale *dockertest.Resource,
+) ([]string, error) {
+	listAllResult, _, err := ExecuteCommand(
+		headscale,
+		[]string{
+			"headscale",
+			"nodes",
+			"list",
+			"--output",
+			"json",
+		},
+		[]string{},
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	var listAll []v1.Machine
+	err = json.Unmarshal([]byte(listAllResult), &listAll)
+	if err != nil {
+		return nil, err
+	}
+
+	hostnames := make([]string, len(listAll))
+
+	for index := range listAll {
+		hostnames[index] = listAll[index].GetGivenName()
+	}
+
+	return hostnames, nil
+}
+
+func GetEnvStr(key string) (string, error) {
+	v := os.Getenv(key)
+	if v == "" {
+		return v, errEnvVarEmpty
+	}
+
+	return v, nil
+}
+
+func GetEnvBool(key string) (bool, error) {
+	s, err := GetEnvStr(key)
+	if err != nil {
+		return false, err
+	}
+	v, err := strconv.ParseBool(s)
+	if err != nil {
+		return false, err
+	}
+
+	return v, nil
+}
+
+func GetFirstOrCreateNetwork(pool *dockertest.Pool, name string) (dockertest.Network, error) {
+	networks, err := pool.NetworksByName(name)
+	if err != nil || len(networks) == 0 {
+		if _, err := pool.CreateNetwork(name); err == nil {
+			// Create does not give us an updated version of the resource, so we need to
+			// get it again.
+			networks, err := pool.NetworksByName(name)
+			if err != nil {
+				return dockertest.Network{}, err
+			}
+
+			return networks[0], nil
+		}
+	}
+
+	return networks[0], nil
+}