[supervisor] welcome message for ssh conn

Author: mustard-mh

components/supervisor/pkg/supervisor/supervisor.go

@@ -283,6 +283,7 @@ func Run(options ...RunOption) {
 		// TODO(cw): provide better feedback if the IDE start fails because of the dotfiles (provide any feedback at all).
 		installDotfiles(ctx, cfg, tokenService, childProcEnvvars)
 		configureSSHDefaultDir(cfg)
+		configureSSHMessageOfTheDay()
 	}
 
 	var ideWG sync.WaitGroup
@@ -1587,6 +1588,24 @@ func configureSSHDefaultDir(cfg *Config) {
 	}
 }
 
+func configureSSHMessageOfTheDay() {
+	msg := []byte(`Welcome to Gitpod - Always ready to code. You can use commands below to be more productive.
+
+	gp tasks list         List all your defined tasks in .gitpod.yml
+	gp tasks attach       Attach to a workspace task
+
+	gp ports list         Lists workspace ports and their states
+	gp timeout extend     Extend timeout of current workspace
+	gp top                Display usage of workspace resources (CPU and memory)
+	gp stop               Stop current workspace
+
+Use gp help to learn more about gp CLI. Visit also https://gitpod.io/docs`)
+
+	if err := ioutil.WriteFile("/etc/motd", msg, 0o644); err != nil {
+		log.WithError(err).Error("write /etc/motd failed")
+	}
+}
+
 func runAsGitpodUser(cmd *exec.Cmd) *exec.Cmd {
 	if cmd.SysProcAttr == nil {
 		cmd.SysProcAttr = &syscall.SysProcAttr{}