运行 PHP 重新启动后带有 Upstart 的脚本

Question

我有以下 Upstart 脚本。当我运行以下命令 service worker-1 start 时，一切正常。我可以看到运行ning 工人和 ps aux | grep php。我还可以使用 restart/update 工作人员需要的 service worker-1 stop。但不幸的是，这个脚本在重启时只能部分工作。脚本已执行（开始：当我尝试 service worker-1 start 时，工作已经运行ning: worker-1）但我没有看到任何运行ning worker with ps aux | grep php 和课程 service worker-1 stop returns stop: Unknown instance:。你知道哪里出了问题吗？

description "Starts/kills workers."
author "Jiri Mihal"
start on (started php5-fpm and started mysql)
stop on shutdown

pre-start script
    echo "[`date`] Workers started" >> /var/log/worker-1.log
    exec 2>>/var/log/worker-1.log
end script

post-start script
    echo $$ > /var/run/worker-1.pid
    for i in `seq 1 5`;
    do
        exec php /home/jiri/workers/dlapi.workers/workers/RpcWorkerLauncher.php Worker-1 >/dev/null 2>&1 &
    done
end script

post-stop script
    read -r FIRSTLINE < /var/run/worker-1.pid
    kill $(($FIRSTLINE + 2))
    kill $(($FIRSTLINE + 3))
    kill $(($FIRSTLINE + 4))
    kill $(($FIRSTLINE + 5))
    kill $(($FIRSTLINE + 6))
    rm /var/run/worker-1.pid
    echo "[`date`] Workers stopped" >> /var/log/worker-1.log
end script

Answer 1

上面的脚本几乎是正确的。主要问题是 PHP 脚本启动了 RabbitMQ worker 但 RabbitMQ 服务器还没有准备好。

我做了一些额外的调整，这是一个可行的解决方案：

description "Starts/kills workers."
author "Jiri Mihal"
start on (rabbitmq-server-running or started rabbitmq-server)
stop on (shutdown or rabbitmq-server-stopped or stopping rabbitmq-server)

env WORKER=Workername
env COUNT=5

pre-start script
    echo "[`date`] Workers started" >> /var/log/worker-$WORKER.log
end script

post-start script
    for i in `seq 1 $COUNT`;
    do
        exec php /home/jiri/workers/dlapi.workers/workers/RpcWorkerLauncher.php $WORKER >/dev/null 2>&1 &
        if [ $i = 1 ]; then
           echo $! > /var/run/worker-$WORKER.pid
        fi
    done
end script

post-stop script
    read -r PID < /var/run/worker-$WORKER.pid
    for i in `seq 1 $COUNT`;
    do
        kill $(($PID + $i - 1))
    done
    rm /var/run/worker-$WORKER.pid
    echo "[`date`] Workers stopped" >> /var/log/worker-$WORKER.log
end script

运行 PHP 重新启动后带有 Upstart 的脚本

Run PHP script with Upstart after reboot

php

ubuntu

upstart