使用 Supervisord 托管 Java 应用

目前结构

$ tree /data/

/data
├── app
│   └── your-app
│       └── your-app-0.0.1-SNAPSHOT.jar
├── data
│   ├── your-app
├── etc
│   ├── common
│   ├── project
│   │   └── your-app
│   │       └── application.properties
│   └── supervisord
│       └── your-app.ini
├── logs
│   ├── your-app
│   │   ├── stderr.log
│   │   └── stdout.log
│   └── tomcat
│       ├── your_app_access_log.2019-02-28.log
│       └── your_app_access_log.2019-03-01.log
├── lost+found
└── web
    └── your-app
        └── start-web.sh

应用启动脚本

$ cat /data/web/your-app/start-web.sh

#!/bin/bash

read -r -d '' JMX  <<- EOM
    -Dcom.sun.management.jmxremote
    -Dcom.sun.management.jmxremote.ssl=false
    -Dcom.sun.management.jmxremote.authenticate=false
    -Dcom.sun.management.jmxremote.port=3000
EOM

read -r -d '' GC  <<- EOM
    -XX:+UseParNewGC
    -XX:+UseConcMarkSweepGC
    -XX:-CMSConcurrentMTEnabled
    -XX:CMSInitiatingOccupancyFraction=70
    -XX:+CMSParallelRemarkEnabled
EOM

MEM="-Xms2G -Xmx2G"
CONF=/data/etc/project/your-app/application.properties
JAR=/data/app/your-app/your-app*.jar

cd $(dirname $0)

PORT=$1
if [ -z $PORT ]
then
    PORT=8080
fi

java $MEM $GC -jar $JAR --server.port=$PORT --spring.config.location=$CONF

Supervisor 配置文件

$ chmod +x /data/web/your-app/start-web.sh
$ cat /data/etc/supervisord/your-app.ini

[program:your-app]
command=/data/web/your-app/start-web.sh 8080
killasgroup=true
stopasgroup=true
user=work
autostart=true
autorestart=true
stdout_logfile=/data/logs/your-app/stdout.log
stderr_logfile=/data/logs/your-app/stderr.log
stdout_logfile_maxbytes=100MB
stderr_logfile_maxbytes=100MB

启动服务

$ supvisorctl update/start your-app

your-app                         RUNNING   pid 5474, uptime 1:14:46