add SetUser support

README.md

@@ -1,15 +1,27 @@
 # gosuv
 [![Build Status](https://travis-ci.org/codeskyblue/gosuv.svg)](https://travis-ci.org/codeskyblue/gosuv)
 
-## Should not use in production now (current is in alpha)
+## Should not use in production now (current is in beta)
 Process management writtern by golang, inspired by python-supervisor
 
-Features
+## So why write another supervisor?
+I have been using python-supervisor for many years and there are something uncomfortable feelings.
+
+1. Log can't contains ANSI color chars
+1. The configuration file can add on the web, often forgot some settings.
+1. `supervisorctl reload` will cause supervisord restarted
+1. Hard to set status change to fatal notifications.
+1. No process performance monitor page.
+1. Program starts with no common environ, eg, missing HOME and USER variable
+1. Kill process default is not group kill which make sub process still running.
+1. More... will added when I think of it.
+
+## Features
 
-* [x] Realtime log view
 * [x] Web control page
 
-	* [x] Start, Stop, Tail, Reload
+  * [x] Start, Stop, Tail, Reload
+  * [x] Realtime log
 	* [x] Add program support
 	* [ ] Edit support
 	* [ ] Delete support
@@ -49,8 +61,8 @@ go-bindata-assetfs -tags bindata res/...
 go build -tags bindata
 ```
 
-## Usage
-Start server in the background
+## Quick start
+After you installed gosuv, the first thing is to start server.
 
 ```sh
 gosuv start-server
@@ -63,7 +75,8 @@ $ gosuv status
 Server is running
 ```
 
-Open web <http://localhost:11313> to see the manager page.
+Open web <http://localhost:11313> to see the manager page. And follow the gif to add a program to gosuv.
+
 
 ![gosuv web](docs/gosuv.gif)
 
@@ -90,6 +103,8 @@ client:
 
 Logs can be found in `$HOME/.gosuv/log/`
 
+Edit config file(default located in `$HOME/.gosuv/programs.yml`) and run `gosuv reload` will take effect immediately.
+
 ## Design
 HTTP is follow the RESTFul guide.
 
@@ -110,7 +125,7 @@ Only 4 states. [ref](http://supervisord.org/subprocess.html#process-states)
 
 ![states](docs/states.png)
 
-## Notification (todo)
+## Notification
 Configuration example
 
 ```yaml
@@ -126,26 +141,20 @@ Configuration example
 
 Now only support [pushover](https://pushover.net/api), and only status change to fatal will get notified.
 
-# Plugin Design (todo)
-Current plugins:
-
-- [tailf](https://github.com/codeskyblue/gosuv-tailf)
-
-All command plugin will store in `$HOME/.gosuv/cmdplugin`, gosuv will treat this plugin as a subcommand.
+## Integrate with github (todo)
+This is feature that will helps update your deployment environment once your updated in the github.
 
-for example:
+This part is set in the `programs.yml`, take look the example
 
-	$HOME/.gosuv/cmdplugin/ --.
-		|- showpid/
-			|- run
-
-There is a directory `showpid`
-
-When run `gosuv showpid`, file `run` will be called.
-
-
-## Use libs
-* <https://github.com/ahmetalpbalkan/govvv>
+```yml
+- demo-program:
+  command: python app.py
+  directory: /opt/demo
+  webhook:
+    github:
+      secret: 123456
+      command: git pull origin master
+```
 
 ## LICENSE
 [MIT](LICENSE)

fsm.go

@@ -107,6 +107,7 @@ type Program struct {
 	StartAuto     bool     `yaml:"start_auto" json:"startAuto"`
 	StartRetries  int      `yaml:"start_retries" json:"startRetries"`
 	StartSeconds  int      `yaml:"start_seconds" json:"startSeconds"`
+	User          string   `yaml:"user,omitempty" json:"user"`
 	Notifications struct {
 		Pushover struct {
 			ApiKey string   `yaml:"api_key"`
@@ -165,10 +166,16 @@ type Process struct {
 	Status     string `json:"status"`
 }
 
+// FIXME(ssx): maybe need to return error
 func (p *Process) buildCommand() *kexec.KCommand {
-	cmd := kexec.CommandString(p.Command) // Not tested here, I think it should work
+	cmd := kexec.CommandString(p.Command)
 	// cmd := kexec.Command(p.Command[0], p.Command[1:]...)
 	cmd.Dir = p.Dir
+	if p.User != "" {
+		if err := cmd.SetUser(p.User); err != nil {
+			log.Warnf("cmd:%s chusr to %s failed", p.Name, p.User)
+		}
+	}
 	logDir := filepath.Join(defaultConfigDir, "log", sanitize.Name(p.Name))
 	if !IsDir(logDir) {
 		os.MkdirAll(logDir, 0755)