如何在Ubuntu上运行Java作为服务？

所以2天后(是的,我是一个完整的新手,当涉及到服务器)试图让这个工作我放弃,转向SO寻求帮助:)

我想在启动时启动我的java应用程序,登录到日志文件.而已 :)

start on runlevel [2345]
stop on runlevel [!2345]


#Respawn the process if it crashes
#If it respawns more than 10 times in 5 seconds stop
respawn
respawn limit 10 5

expect fork

script
    cd /home/ubuntu/admin/
    mvn spring-boot:run > /var/log/upstart/admin.log 2>&1
end script

运行"sudo start admin"工作,我在控制台中得到"管理员启动/运行"..没有创建日志,java应用程序没有启动..？

我错过了什么？

如何在Ubuntu上运行Java作为服务？

我不是故意偏见,但是自2010年以来我在Ubuntu上部署了Java应用程序并且在Upstart上取得了很少的成功.我使用init.d脚本和start-stop-daemon.边奖金:它适用于更多发行版.

创建/etc/init.d/my-java-app:

#!/bin/sh
#
# my-java-app My Java App
#
# chkconfig: - 80 05
# description: Enable My Java Application
#

### BEGIN INIT INFO
# Provides:          my-java-app
# Required-Start:    $remote_fs $network
# Required-Stop:     $remote_fs $network
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Description:       My Java Application
# Short-Description: Enable My Java Application
### END INIT INFO

DESC="my java app"
NAME=my-java-app
PIDFILE=/var/run/$NAME.pid
RUN_AS=ubuntu
WORK_DIR=/home/ubuntu/admin
DAEMON=/usr/bin/mvn
DAEMON_OPTS="spring-boot:run"

# Read configuration variable file if it is present
[ -r /etc/default/$NAME ] && . /etc/default/$NAME

# Load the VERBOSE setting and other rcS variables
. /lib/init/vars.sh

# Define LSB log_* functions.
# Depend on lsb-base (>= 3.2-14) to ensure that this file is present
# and status_of_proc is working.
. /lib/lsb/init-functions

do_start() {
    start-stop-daemon --start --quiet --make-pidfile --pidfile $PIDFILE \
        --background \
        --chuid $RUN_AS \
        --chdir $WORK_DIR \
        --exec $DAEMON -- $DAEMON_OPTS
}

do_stop() {
    start-stop-daemon --stop --quiet --pidfile $PIDFILE
    if [ -e $PIDFILE ]
        then rm $PIDFILE
    fi
}

case "$1" in
    start)
    echo -n "Starting $DESC: $NAME"
    do_start
    echo "."
    ;;
    stop)
    echo -n "Stopping $DESC: $NAME"
    do_stop
    echo "."
    ;;
    restart)
    echo -n "Restarting $DESC: $NAME"
    do_stop
    sleep 1
    do_start
    echo "."
    ;;
    status)
    status_of_proc -p $PIDFILE "$DAEMON" "$NAME" && exit 0 || exit $?
    ;;
    *)
    echo "usage: $NAME {start|stop|restart}"
    exit 1
    ;;
esac

使其属于root,使其可执行,并将其设置为在启动时运行:

sudo chown root:root /etc/init.d/my-java-app
sudo chmod 755 /etc/init.d/my-java-app
sudo update-rc.d my-java-app defaults

要启动该服务,您可以运行:

sudo service my-java-app start

要停止服务,您可以运行:

sudo service my-java-app stop

这是基于Ubuntu包含的/etc/init.d/skeleton文件的简化版本.

如果你想进一步调整这个,那么start-stop-daemon的手册页值得一看