副本集的 Upstart 指令碼

如果你正在執行副本集或需要對資料庫進行分片，那麼你需要一個看起來像這樣的 upstart 指令碼：

# /etc/init/myapp.conf
description "myapp.mydomain.com"
author      "somebody@gmail.com"

# used to be: start on startup
# until we found some mounts weren't ready yet while booting:
start on started mountall
stop on shutdown

# Automatically Respawn:
respawn
respawn limit 99 5

script
    # upstart likes the $HOME variable to be specified
    export HOME="/root"

    # our example assumes you're using a replica set and/or oplog integreation
    export MONGO_URL='mongodb://mongo-a,mongo-b,mongo-c:27017/?replicaSet=meteor'

    # root_url and port are the other two important environment variables to set
    export ROOT_URL='http://myapp.mydomain.com'
    export PORT='80'

    exec /usr/local/bin/node /var/www/production/main.js >> /var/log/node.log 2>&1
end script