Deployment using a node process manager (pm2)
Deployment using a node process manager (pm2)¶
PM2 is a popular and maintained process manager based in node (https://pm2.keymetrics.io/)
Note
You can use the good'ol known supervisord as well. However, the supervisord project is stalled and in low maintenance mode last years. PM2 is a good alternative, and as you'll see you can manage all kind of processes, not only node ones, including the Plone processes.
Create a file mywebsite.com.pm2.config.js in your repo or on your server.
Important
Make sure your pm2 config file sufix ends in config.js, otherwise PM2 will ignore it.
module.exports = {
apps: [
{
script: "/srv/mywebsite.com/build/server.js",
name: "mywebsite.com-volto",
cwd: "/srv/mywebsite.com"
},
{
script: "/srv/mywebsite.com/api/bin/zeo",
args: "fg",
name: "mywebsite.com-api-zeo",
cwd: "/srv/mywebsite.com",
interpreter: "/srv/mywebsite.com/api/bin/python"
},
{
script: "/srv/mywebsite.com/api/bin/instance1",
args: "console",
name: "mywebsite.com-api-instance1",
cwd: "/srv/mywebsite.com",
interpreter: "/srv/mywebsite.com/api/bin/python"
},
{
script: "/srv/mywebsite.com/api/bin/instance2",
args: "console",
name: "mywebsite.com-api-instance2",
cwd: "/srv/mywebsite.com",
interpreter: "/srv/mywebsite.com/api/bin/python"
}
]
};
"mywebsite.com-volto" starts the Node process that is responsible for Volto server-side-rendering.
"mywebsite.com-api-zeo" starts the ZEO server
"mywebsite.com-api-instance1" starts the first Zope instance
"mywebsite.com-api-instance2" starts the second Zope instance
Add more Zope instances if necessary.