Added ability to print command line args (fixes #144)

cmd/selenoid.go

@@ -32,6 +32,7 @@ func init() {
 	initFlags()
 
 	selenoidCmd.AddCommand(selenoidDownloadCmd)
+	selenoidCmd.AddCommand(selenoidArgsCmd)
 	selenoidCmd.AddCommand(selenoidConfigureCmd)
 	selenoidCmd.AddCommand(selenoidStartCmd)
 	selenoidCmd.AddCommand(selenoidStopCmd)
@@ -40,6 +41,7 @@ func init() {
 	selenoidCmd.AddCommand(selenoidStatusCmd)
 
 	selenoidUICmd.AddCommand(selenoidDownloadUICmd)
+	selenoidUICmd.AddCommand(selenoidUIArgsCmd)
 	selenoidUICmd.AddCommand(selenoidStartUICmd)
 	selenoidUICmd.AddCommand(selenoidStopUICmd)
 	selenoidUICmd.AddCommand(selenoidUpdateUICmd)
@@ -50,13 +52,15 @@ func init() {
 func initFlags() {
 	for _, c := range []*cobra.Command{
 		selenoidDownloadCmd,
+		selenoidArgsCmd,
 		selenoidConfigureCmd,
 		selenoidStartCmd,
 		selenoidStopCmd,
 		selenoidUpdateCmd,
 		selenoidCleanupCmd,
 		selenoidStatusCmd,
 		selenoidDownloadUICmd,
+		selenoidUIArgsCmd,
 		selenoidStartUICmd,
 		selenoidStopUICmd,
 		selenoidUpdateUICmd,
@@ -67,6 +71,7 @@ func initFlags() {
 	}
 	for _, c := range []*cobra.Command{
 		selenoidDownloadCmd,
+		selenoidArgsCmd,
 		selenoidConfigureCmd,
 		selenoidStartCmd,
 		selenoidStopCmd,
@@ -79,6 +84,7 @@ func initFlags() {
 	}
 	for _, c := range []*cobra.Command{
 		selenoidDownloadUICmd,
+		selenoidUIArgsCmd,
 		selenoidStartUICmd,
 		selenoidStopUICmd,
 		selenoidUpdateUICmd,
@@ -91,10 +97,12 @@ func initFlags() {
 
 	for _, c := range []*cobra.Command{
 		selenoidDownloadCmd,
+		selenoidArgsCmd,
 		selenoidConfigureCmd,
 		selenoidStartCmd,
 		selenoidUpdateCmd,
 		selenoidDownloadUICmd,
+		selenoidUIArgsCmd,
 		selenoidStartUICmd,
 		selenoidUpdateUICmd,
 	} {
@@ -103,10 +111,12 @@ func initFlags() {
 	}
 	for _, c := range []*cobra.Command{
 		selenoidDownloadCmd,
+		selenoidArgsCmd,
 		selenoidConfigureCmd,
 		selenoidStartCmd,
 		selenoidUpdateCmd,
 		selenoidDownloadUICmd,
+		selenoidUIArgsCmd,
 		selenoidStartUICmd,
 		selenoidUpdateUICmd,
 	} {
@@ -128,9 +138,11 @@ func initFlags() {
 	}
 	for _, c := range []*cobra.Command{
 		selenoidDownloadCmd,
+		selenoidArgsCmd,
 		selenoidConfigureCmd,
 		selenoidStartCmd,
 		selenoidDownloadUICmd,
+		selenoidUIArgsCmd,
 		selenoidStartUICmd,
 	} {
 		c.Flags().BoolVarP(&force, "force", "f", false, "force action")

cmd/selenoid_args.go

@@ -0,0 +1,32 @@
+package cmd
+
+import (
+	"github.com/aerokube/cm/selenoid"
+	"github.com/spf13/cobra"
+	"os"
+)
+
+var selenoidArgsCmd = &cobra.Command{
+	Use:   "args",
+	Short: "Shows Selenoid available args",
+	Run: func(cmd *cobra.Command, args []string) {
+		argsImpl(uiConfigDir, uiPort, func(lc *selenoid.Lifecycle) error {
+			return lc.PrintArgs()
+		}, force)
+	},
+}
+
+func argsImpl(configDir string, port uint16, argsAction func(*selenoid.Lifecycle) error, force bool) {
+	lifecycle, err := createLifecycle(configDir, port)
+	if err != nil {
+		stderr("Failed to initialize: %v\n", err)
+		os.Exit(1)
+	}
+	lifecycle.Force = force
+	err = argsAction(lifecycle)
+	if err != nil {
+		lifecycle.Errorf("Failed to print args: %v", err)
+		os.Exit(1)
+	}
+	os.Exit(0)
+}

cmd/selenoid_ui_args.go

@@ -0,0 +1,16 @@
+package cmd
+
+import (
+	"github.com/aerokube/cm/selenoid"
+	"github.com/spf13/cobra"
+)
+
+var selenoidUIArgsCmd = &cobra.Command{
+	Use:   "args",
+	Short: "Shows Selenoid UI available args",
+	Run: func(cmd *cobra.Command, args []string) {
+		argsImpl(uiConfigDir, uiPort, func(lc *selenoid.Lifecycle) error {
+			return lc.PrintUIArgs()
+		}, force)
+	},
+}

docs/selenoid-commands.adoc

@@ -80,6 +80,7 @@ Supported commands are:
 |===
 | Command | Meaning
 
+| args | Print Selenoid command line arguments
 | cleanup | Removes Selenoid traces
 | configure | Creates Selenoid configuration file (implies download)
 | download | Downloads Selenoid binary or container image

docs/selenoid-ui-commands.adoc

@@ -15,6 +15,7 @@ Selenoid UI configuration algorithm is similar to Selenoid one - it is started e
 |===
 | Command | Meaning
 
+| args | Print Selenoid UI command line arguments
 | cleanup | Removes Selenoid UI traces
 | download | Downloads Selenoid UI binary or container image
 | start | Starts Selenoid UI process or container (implies download)

selenoid/base.go

@@ -11,11 +11,16 @@ import (
 	colorable "github.com/mattn/go-colorable"
 )
 
-type StatusAware interface {
+type StatusProvider interface {
 	Status()
 	UIStatus()
 }
 
+type ArgsProvider interface {
+	PrintArgs() error
+	PrintUIArgs() error
+}
+
 type Downloadable interface {
 	IsDownloaded() bool
 	Download() (string, error)

selenoid/docker.go

@@ -37,6 +37,7 @@ import (
 	"github.com/aerokube/cm/render/rewriter"
 	dc "github.com/aerokube/util/docker"
 	"github.com/fatih/color"
+	"io"
 	"net/url"
 	. "vbom.ml/util/sortorder"
 )
@@ -585,6 +586,14 @@ func (c *DockerConfigurator) getContainer(name string, port int) *types.Containe
 	return nil
 }
 
+func (c *DockerConfigurator) PrintArgs() error {
+	image := c.getSelenoidImage()
+	if image == nil {
+		return errors.New("Selenoid image is not downloaded: this is probably a bug")
+	}
+	return c.startContainer("", image, 0, 0, []string{}, []string{}, []string{"--help"}, []string{}, true)
+}
+
 func (c *DockerConfigurator) Start() error {
 	image := c.getSelenoidImage()
 	if image == nil {
@@ -622,7 +631,7 @@ func (c *DockerConfigurator) Start() error {
 	if !strings.Contains(c.Env, "OVERRIDE_VIDEO_OUTPUT_DIR") {
 		overrideEnv = append(overrideEnv, fmt.Sprintf("OVERRIDE_VIDEO_OUTPUT_DIR=%s", videoConfigDir))
 	}
-	return c.startContainer(selenoidContainerName, image, c.Port, SelenoidDefaultPort, volumes, []string{}, cmd, overrideEnv)
+	return c.startContainer(selenoidContainerName, image, c.Port, SelenoidDefaultPort, volumes, []string{}, cmd, overrideEnv, false)
 }
 
 func (c *DockerConfigurator) isDockerForWindows() bool {
@@ -675,6 +684,14 @@ func chooseVolumeConfigDir(defaultConfigDir string, elem []string) string {
 	return defaultConfigDir
 }
 
+func (c *DockerConfigurator) PrintUIArgs() error {
+	image := c.getSelenoidUIImage()
+	if image == nil {
+		return errors.New("Selenoid UI image is not downloaded: this is probably a bug")
+	}
+	return c.startContainer("", image, 0, 0, []string{}, []string{}, []string{"--help"}, []string{}, true)
+}
+
 func (c *DockerConfigurator) StartUI() error {
 	image := c.getSelenoidUIImage()
 	if image == nil {
@@ -693,7 +710,7 @@ func (c *DockerConfigurator) StartUI() error {
 	}
 
 	overrideEnv := strings.Fields(c.Env)
-	return c.startContainer(selenoidUIContainerName, image, c.Port, SelenoidUIDefaultPort, []string{}, links, cmd, overrideEnv)
+	return c.startContainer(selenoidUIContainerName, image, c.Port, SelenoidUIDefaultPort, []string{}, links, cmd, overrideEnv, false)
 }
 
 func validateEnviron(envs []string) []string {
@@ -707,7 +724,7 @@ func validateEnviron(envs []string) []string {
 	return validEnv
 }
 
-func (c *DockerConfigurator) startContainer(name string, image *types.ImageSummary, hostPort int, servicePort int, volumes []string, links []string, cmd []string, envOverride []string) error {
+func (c *DockerConfigurator) startContainer(name string, image *types.ImageSummary, hostPort int, servicePort int, volumes []string, links []string, cmd []string, envOverride []string, printLogs bool) error {
 	ctx := context.Background()
 	env := validateEnviron(os.Environ())
 	env = append(env, fmt.Sprintf("TZ=%s", time.Local))
@@ -717,34 +734,42 @@ func (c *DockerConfigurator) startContainer(name string, image *types.ImageSumma
 	if !contains(env, dockerApiVersion) {
 		env = append(env, fmt.Sprintf("%s=%s", dockerApiVersion, c.docker.ClientVersion()))
 	}
-	hostPortString := strconv.Itoa(hostPort)
 	servicePortString := strconv.Itoa(servicePort)
 	port, err := nat.NewPort("tcp", servicePortString)
 	if err != nil {
 		return fmt.Errorf("failed to init port: %v", err)
 	}
-	exposedPorts := map[nat.Port]struct{}{port: {}}
-	portBindings := nat.PortMap{}
-	portBindings[port] = []nat.PortBinding{{HostIP: "0.0.0.0", HostPort: hostPortString}}
 	containerConfig := container.Config{
-		Hostname:     "localhost",
-		Image:        image.RepoTags[0],
-		Env:          env,
-		ExposedPorts: exposedPorts,
+		Hostname: "localhost",
+		Image:    image.RepoTags[0],
+		Env:      env,
+	}
+	if servicePort > 0 {
+		containerConfig.ExposedPorts = map[nat.Port]struct{}{port: {}}
 	}
 	if len(cmd) > 0 {
 		containerConfig.Cmd = strslice.StrSlice(cmd)
 	}
+	hostConfig := container.HostConfig{
+		Binds: volumes,
+		Links: links,
+	}
+	if printLogs {
+		containerConfig.Tty = true
+	} else {
+		hostConfig.RestartPolicy = container.RestartPolicy{
+			Name: "always",
+		}
+	}
+	if hostPort > 0 && servicePort > 0 {
+		hostPortString := strconv.Itoa(hostPort)
+		portBindings := nat.PortMap{}
+		portBindings[port] = []nat.PortBinding{{HostIP: "0.0.0.0", HostPort: hostPortString}}
+		hostConfig.PortBindings = portBindings
+	}
 	ctr, err := c.docker.ContainerCreate(ctx,
 		&containerConfig,
-		&container.HostConfig{
-			Binds:        volumes,
-			Links:        links,
-			PortBindings: portBindings,
-			RestartPolicy: container.RestartPolicy{
-				Name: "always",
-			},
-		},
+		&hostConfig,
 		&network.NetworkingConfig{}, name)
 	if err != nil {
 		return fmt.Errorf("failed to create container: %v", err)
@@ -754,6 +779,18 @@ func (c *DockerConfigurator) startContainer(name string, image *types.ImageSumma
 		c.removeContainer(ctr.ID)
 		return fmt.Errorf("failed to start container: %v", err)
 	}
+	if printLogs {
+		defer c.removeContainer(ctr.ID)
+		r, err := c.docker.ContainerLogs(ctx, ctr.ID, types.ContainerLogsOptions{
+			ShowStdout: true,
+			ShowStderr: true,
+		})
+		if err != nil {
+			return fmt.Errorf("failed to read container logs: %v", err)
+		}
+		defer r.Close()
+		io.Copy(os.Stderr, r)
+	}
 	return nil
 }
 

selenoid/docker_test.go

@@ -158,6 +158,13 @@ func mux() http.Handler {
 			w.WriteHeader(http.StatusNoContent)
 		},
 	))
+	mux.HandleFunc("/v1.29/containers/e90e34656806/logs", http.HandlerFunc(
+		func(w http.ResponseWriter, r *http.Request) {
+			w.Header().Add("Content-Type", "text/plain")
+			w.WriteHeader(http.StatusOK)
+			w.Write([]byte("Some logs...\n"))
+		},
+	))
 	mux.HandleFunc("/v1.29/containers/e90e34656806", http.HandlerFunc(
 		func(w http.ResponseWriter, r *http.Request) {
 			w.WriteHeader(http.StatusNoContent)
@@ -378,6 +385,7 @@ func TestDownload(t *testing.T) {
 	ref, err := c.Download()
 	AssertThat(t, ref, Not{nil})
 	AssertThat(t, err, Is{nil})
+	AssertThat(t, c.PrintArgs(), Is{nil})
 }
 
 func TestDownloadUI(t *testing.T) {
@@ -396,6 +404,7 @@ func TestDownloadUI(t *testing.T) {
 	ref, err := c.DownloadUI()
 	AssertThat(t, ref, Not{nil})
 	AssertThat(t, err, Is{nil})
+	AssertThat(t, c.PrintUIArgs(), Is{nil})
 }
 
 func TestGetSelenoidImage(t *testing.T) {

selenoid/drivers.go

@@ -34,7 +34,6 @@ const (
 	owner           = "aerokube"
 	selenoidRepo    = "selenoid"
 	selenoidUIRepo  = "selenoid-ui"
-	microsoftEdge   = "MicrosoftEdge"
 )
 
 type Browsers map[string]Browser
@@ -567,6 +566,10 @@ func (d *DriversConfigurator) IsUIRunning() bool {
 	return len(selenoidUIProcesses) > 0
 }
 
+func (d *DriversConfigurator) PrintArgs() error {
+	return runCommand(d.getSelenoidBinaryPath(), []string{"--help"}, []string{})
+}
+
 func (d *DriversConfigurator) Start() error {
 	args := []string{}
 	overrideArgs := strings.Fields(d.Args)
@@ -595,6 +598,10 @@ func contains(haystack []string, needle string) bool {
 	return false
 }
 
+func (d *DriversConfigurator) PrintUIArgs() error {
+	return runCommand(d.getSelenoidUIBinaryPath(), []string{"--help"}, []string{})
+}
+
 func (d *DriversConfigurator) StartUI() error {
 	args := strings.Fields(d.Args)
 	if !contains(args, "-listen") {
@@ -604,7 +611,7 @@ func (d *DriversConfigurator) StartUI() error {
 	return runCommand(d.getSelenoidUIBinaryPath(), args, env)
 }
 
-var killFunc func(os.Process) error = func(p os.Process) error {
+var killFunc = func(p os.Process) error {
 	return p.Kill()
 }
 

selenoid/drivers_test.go

@@ -437,12 +437,14 @@ func TestStartStopProcess(t *testing.T) {
 		AssertThat(t, configurator.Start(), Is{nil})
 		configurator.Status()
 		AssertThat(t, configurator.Stop(), Is{nil})
+		AssertThat(t, configurator.PrintArgs(), Is{nil})
 
 		lcConfig.Port = SelenoidUIDefaultPort
 		AssertThat(t, configurator.IsUIRunning(), Is{false})
 		AssertThat(t, configurator.StartUI(), Is{nil})
 		configurator.UIStatus()
 		AssertThat(t, configurator.StopUI(), Is{nil})
+		AssertThat(t, configurator.PrintUIArgs(), Is{nil})
 	})
 
 }