使用Supervisord实现Docker Container的自启动

CentOS7 安装Supervisor

# 安装sudo yum install python-setuptools -ysudo easy_install supervisor# 生成默认配置文件sudo sh -c 'echo_supervisord_conf > /etc/supervisord.conf'# 创建启动脚本sudo vim /etc/rc.d/init.d/supervisord

下面是init脚本

#!/bin/bash. /etc/init.d/functionsDAEMON=/usr/bin/supervisordPIDFILE=/var/run/supervisord.pid[ -x "$DAEMON" ] || exit 0start() {        echo -n "Starting supervisord: "        if [ -f $PIDFILE ]; then                PID=`cat $PIDFILE`                echo supervisord already running: $PID                exit 2;        else                daemon  $DAEMON --pidfile=$PIDFILE -c /etc/supervisord.conf                RETVAL=$?                echo                [ $RETVAL -eq 0 ] && touch /var/lock/subsys/supervisord                return $RETVAL        fi}stop() {        echo -n "Shutting down supervisord: "        echo        killproc -p $PIDFILE supervisord        echo        rm -f /var/lock/subsys/supervisord        return 0}case "$1" in    start)        start        ;;    stop)        stop        ;;    status)        status supervisord        ;;    restart)        stop        start        ;;    *)        echo "Usage:  {start|stop|status|restart}"        exit 1        ;;esacexit $?

别忘了给脚本赋权

sudo chmod +x /etc/rc.d/init.d/supervisord

配置Supervisor

新建一份独立配置文件,比如 /media/storage/work/supervisord.ini, 配置各container的启动

docker start -a 表示附加到已有容器，或者启动新容器（如果未启动)

[program:zookeeper]command=/usr/bin/docker start -a zookeeper[program:env3_mysql_log]command=/usr/bin/docker start -a env3_mysql_log[program:stage_mysql_log]command=/usr/bin/docker start -a stage_mysql_log[program:stage_redis]command=/usr/bin/docker start -a stage_redis[program:webapi-1]command=/usr/bin/docker start -a webapi-1[program:webapi-2]command=/usr/bin/docker start -a webapi-2[program:webapi-3]command=/usr/bin/docker start -a webapi-3

然后在 /etc/supervisord.conf 配置中引入此配置文件

[include]files = /media/storage/work/supervisord.ini

最后启动supervisord服务

sudo service supervisord restart