How to pass arguments to app using pm2?

Question

I am using pm2 to start my app but i am not able to pass argument to it. the command I am using is pm2 start app.js -- dev. Though this works with forever.

Answer 1

You can send arguments to your script by passing them after --. For example: pm2 start app.js -i max -- -a 23 // Pass arguments after -- to app.js

Answer 2

I always use PM2 to run my python scripts in Linux environment. So consider a script has a single parameter and needs to run continously after some amount if time, then we can pass it like this:

pm2 start <filename.py> --name <nameForJob> --interpreter <InterpreterName> --restart-delay <timeinMilliseconds> -- <param1> <param2>

filename.py is Name of the python script, without <> symbols, I want to run using PM2
nameForJob is the Meaningful name for the job, without <> symbols
InterpreterName is the python interpreter for running script, usually it is python3 in linux
timeinMilliseconds is the time our script needs to wait and re-run again
param1 is the first parameter for the script
param2 is the second parameter for the script.

Answer 3

If you want to pass node arguments from CLI then

pm2 start myServer.js --node-args="--production --port=1337"

.

Edited

you can add any arguments after --

pm2 start app.js -- --prod --second-arg --third-arg

Sails docs for deploymemt.

Answer 4

From the pm2 docs

//Inject what is declared in env_production
$ pm2 start app.js --env production 

//Inject what is declared in env_staging
$ pm2 restart app.js --env staging

Answer 5

You can pass args for node just like that:

NODE_TLS_REJECT_UNAUTHORIZED=0 NODE_ENV=dev pm2 start server.js --name web-server

Answer 6

You need to start pm2 with something like: pm2 start app.js --name "app_name" -- arg1 arg2

Then in your code, you can get your args with: console.log(process.argv);

process.argv is a list like this: [ '/usr/local/bin/node', '/usr/local/lib/node_modules/pm2/lib/ProcessContainerFork.js', 'arg1', 'arg2' ]