feat: add option for custom socket path (#698)

act/runner/run_context.go

@@ -67,8 +67,12 @@ func (rc *RunContext) jobContainerName() string {
 func (rc *RunContext) GetBindsAndMounts() ([]string, map[string]string) {
 	name := rc.jobContainerName()
 
+	if rc.Config.ContainerDaemonSocket == "" {
+		rc.Config.ContainerDaemonSocket = "/var/run/docker.sock"
+	}
+
 	binds := []string{
-		fmt.Sprintf("%s:%s", "/var/run/docker.sock", "/var/run/docker.sock"),
+		fmt.Sprintf("%s:%s", rc.Config.ContainerDaemonSocket, "/var/run/docker.sock"),
 	}
 
 	mounts := map[string]string{

act/runner/runner.go

@@ -37,6 +37,7 @@ type Config struct {
 	Privileged            bool              // use privileged mode
 	UsernsMode            string            // user namespace to use
 	ContainerArchitecture string            // Desired OS/architecture platform for running containers
+	ContainerDaemonSocket string            // Path to Docker daemon socket
 	UseGitIgnore          bool              // controls if paths in .gitignore should not be copied into container, default true
 	GitHubInstance        string            // GitHub instance to use, default "github.com"
 }

cmd/input.go

@@ -28,6 +28,7 @@ type Input struct {
 	privileged            bool
 	usernsMode            string
 	containerArchitecture string
+	containerDaemonSocket string
 	noWorkflowRecurse     bool
 	useGitIgnore          bool
 	githubInstance        string

cmd/root.go

@@ -61,6 +61,7 @@ func Execute(ctx context.Context, version string) {
 	rootCmd.PersistentFlags().BoolVarP(&input.insecureSecrets, "insecure-secrets", "", false, "NOT RECOMMENDED! Doesn't hide secrets while printing logs.")
 	rootCmd.PersistentFlags().StringVarP(&input.envfile, "env-file", "", ".env", "environment file to read and use as env in the containers")
 	rootCmd.PersistentFlags().StringVarP(&input.containerArchitecture, "container-architecture", "", "", "Architecture which should be used to run containers, e.g.: linux/amd64. If not specified, will use host default architecture. Requires Docker server API Version 1.41+. Ignored on earlier Docker server platforms.")
+	rootCmd.PersistentFlags().StringVarP(&input.containerDaemonSocket, "container-daemon-socket", "", "/var/run/docker.sock", "Path to Docker daemon socket which will be mounted to containers")
 	rootCmd.PersistentFlags().StringVarP(&input.githubInstance, "github-instance", "", "github.com", "GitHub instance to use. Don't use this if you are not using GitHub Enterprise Server.")
 	rootCmd.SetArgs(args())
 
@@ -255,6 +256,7 @@ func newRunCommand(ctx context.Context, input *Input) func(*cobra.Command, []str
 			Privileged:            input.privileged,
 			UsernsMode:            input.usernsMode,
 			ContainerArchitecture: input.containerArchitecture,
+			ContainerDaemonSocket: input.containerDaemonSocket,
 			UseGitIgnore:          input.useGitIgnore,
 			GitHubInstance:        input.githubInstance,
 		}