我有一个用 Dart 编写的 http 服务器,我计划将其部署到 Linux 虚拟机。现在,我的测试/演示服务器在 Ubuntu digital ocean 水滴上。有没有人有好的初始化脚本或比使用 linux 初始化服务脚本更好的方法?
编辑:
我现在的初始化脚本:
#! /bin/sh
### BEGIN INIT INFO
# Provides: dart
# Required-Start: $remote_fs $syslog
# Required-Stop: $remote_fs $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Starts Dart
# Description: This will start the dart runtime and in turn, start
### END INIT INFO
# Author: David Marchbanks <ptdave20@gmail.com>
# Do NOT "set -e"
# PATH should only include /usr/* if it runs after the mountnfs.sh script
PATH=/sbin:/usr/sbin:/bin:/usr/bin
DESC="Dart Server"
NAME=dart
DAEMON=/usr/bin/$NAME
DART_SERVER=/home/dart/server/bin/server.dart
DAEMON_ARGS="$DART_SERVER"
PIDFILE=/var/run/$NAME.pid
SCRIPTNAME=/etc/init.d/$NAME
# Exit if the package is not installed
[ -x "$DAEMON" ] || exit 0
# 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
#
# Function that starts the daemon/service
#
do_start()
{
# Return
# 0 if daemon has been started
# 1 if daemon was already running
# 2 if daemon could not be started
start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $DAEMON --test > /dev/null
start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $DAEMON $DAEMON_ARGS || return 2
# Add code here, if necessary, that waits for the process to be ready
# to handle requests from services started subsequently which depend
# on this one. As a last resort, sleep for some time.
}
#
# Function that stops the daemon/service
#
do_stop()
{
# Return
# 0 if daemon has been stopped
# 1 if daemon was already stopped
# 2 if daemon could not be stopped
# other if a failure occurred
start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile $PIDFILE --name $NAME
RETVAL="$?"
[ "$RETVAL" = 2 ] && return 2
# Wait for children to finish too if this is a daemon that forks
# and if the daemon is only ever run from this initscript.
# If the above conditions are not satisfied then add some other code
# that waits for the process to drop all resources that could be
# needed by services started subsequently. A last resort is to
# sleep for some time.
start-stop-daemon --stop --quiet --oknodo --retry=0/30/KILL/5 --exec $DAEMON
[ "$?" = 2 ] && return 2
# Many daemons don't delete their pidfiles when they exit.
rm -f $PIDFILE
return "$RETVAL"
}
#
# Function that sends a SIGHUP to the daemon/service
#
do_reload() {
#
# If the daemon can reload its configuration without
# restarting (for example, when it is sent a SIGHUP),
# then implement that here.
#
start-stop-daemon --stop --signal 1 --quiet --pidfile $PIDFILE --name $NAME
return 0
}
case "$1" in
start)
[ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
do_start
case "$?" in
0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
esac
;;
stop)
[ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
do_stop
case "$?" in
0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
esac
;;
status)
status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $?
;;
#reload|force-reload)
#
# If do_reload() is not implemented then leave this commented out
# and leave 'force-reload' as an alias for 'restart'.
#
#log_daemon_msg "Reloading $DESC" "$NAME"
#do_reload
#log_end_msg $?
#;;
restart|force-reload)
#
# If the "reload" option is implemented then remove the
# 'force-reload' alias
#
log_daemon_msg "Restarting $DESC" "$NAME"
do_stop
case "$?" in
0|1)
do_start
case "$?" in
0) log_end_msg 0 ;;
1) log_end_msg 1 ;; # Old process is still running
*) log_end_msg 1 ;; # Failed to start
esac
;;
*)
# Failed to stop
log_end_msg 1
;;
esac
;;
*)
#echo "Usage: $SCRIPTNAME {start|stop|restart|reload|force-reload}" >&2
echo "Usage: $SCRIPTNAME {start|stop|status|restart|force-reload}" >&2
exit 3
;;
esac
:
最佳答案
我建议使用 Docker ( https://www.docker.com/ ) 容器来封装您的 Dart 应用。
这是一个关于如何“dockerize”Dart 应用程序的好例子:http://www.nkode.io/2014/03/05/dockerize-dart.html
一般来说:
- 你像这样添加一个
Dockerfile
:https://github.com/nkratzke/containerdart/blob/master/Dockerfile到你的申请 - 通过
docker run ...
在本地运行/测试您的应用程序 - 准备就绪后,将应用程序部署到您的服务器,并按照此处所述添加 docker 容器的自动启动:https://docs.docker.com/articles/host_integration/
此方法将允许您在任何操作系统上进行开发(Docker 使用 VM 用于非 Linux 操作系统),并确保您的应用程序能够在您的生产服务器上运行。
实际上它比听起来简单得多,但统一了流程,因此您可以轻松地将您的应用程序托管在任何“对 docker 友好”的主机上,不仅是 DigitalOcean,还包括 Amazon EC2、Google Compute,甚至是 Microsoft 的 Azure。
关于ubuntu - 运行 Dart 服务器的最佳方法?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/24916630/