How to require dotenv/config file on (before) PM2 starts

问题

I run node app like this:

node -r dotenv/config dist/app

I need something similar using PM2:

pm2 start -r dotenv/config dist/app.js --name appname // doesn't work

I receive the next error: error: unknown option -r

回答1:

Using node_args.

pm2 start --node-args="-r dotenv/config" dist/app.js --name appname

回答2:

I have made a Shell script:

// pm2-start.sh

NODE_ENV=production &&
node -r dotenv/config dist/app

Then I ran pm2 start pm2-start.sh --name appname

Tip I have also ran: pm2 startup then copied command that pm2 instructed to run in order to activate the auto startup of all apps that are registered via pm2.

Then I ran pm2 save to save the auto service.

Note: pm2 lists apps distinctly between server account respectively. That means that apps that are listed on user A will not be listed on user B. That's true for the pm2 startup command - that should be done for each account.

Hope it helps.

来源：https://stackoverflow.com/questions/56832158/how-to-require-dotenv-config-file-on-before-pm2-starts