Refactor Startup system (systemd, upstart, launchd, rc.d)

[Unitech]

Refactor the Startup System to support:

• systemd
• upstart
• launchd
• rc.d

Steps:

• Full startup commands refactor
• Auto discover init system in running machine
• Support windows init system
• Do not launch PM2 as root when running startup command
• Allow to remove startup system (pm2 unstartup)
• Harden Systemd template
• Multi user support
• Harden Systemv template (upstart)
• Print generated file, commands and destination
• Test system
• Do not duplicate process on resurrection
• Allow to attach to external process and auto exit on target PM2 kill

Current work is available in development branch:

$ npm install Unitech/pm2#development -g
$ pm2 update

$ pm2 startup     # Then copy / paste the command displayed
$ pm2 unstartup

Issues related

Systemd

• pm2 startup does not work on RHEL 7 #2377
• Systemd not recognizing PM2 as being online #2354
• "pm2 startup systemd" not working on Intel Edison #1549
• Problems with pm2 startup on ubuntu 15.04 #1319

Upstart

• Can you remove the '.sh',and add an extra option to specify the file extention? #2306
• Recipe for nvm? #2171
• Wrong user home set when generating pm2-init.sh #1888
• pm2 startup - multiple users #1753
• pm2 does not restart app when Centos server reboot #1521
• startup command kill all running processes and not restart them #1418
• PM2 startup with nvm #1413
• Install don't work #1382
• Centrify issues and fix #1061
• Installation of startup script kicks of pm2 daemon running as root #933
• pm2 startup not working on aws ec2 ubuntu server #920
• pm2-init.sh doesn't work on startup under ubuntu 12.04 LTS #909
• pm2-init.sh does not work on centos 7 #903
• CentOS startup scripts break with non-bash default shells #890
• pm2 startup cannot generate startup scripts for multiple users #889

Launchd

• Feature Request: Startup Script for smartOS #1352

Windows

• Startup script generation for Windows #1079
• pm2 startup error on Windows 10 #1988

General

• Document how to remove startup script #1349

[Unitech]

Published on @next (2.2.0):

$ npm install pm2@next -g
$ pm2 update

# Get line to be executed as root
$ pm2 startup     # Generate startup script
$ pm2 unstartup # Deactivate and remove startup script

[Unitech]

To delete previous startup script (only for upstart) and upgrade to the new one

$ pm2 unstartup upstart
$ pm2 startup upstart

If you have systemd running, use it instead of upstart

[Unitech]

2.2.1 Released!

Changelog: https://github.com/Unitech/pm2/releases/tag/2.2.1
Startup documentation: http://pm2.keymetrics.io/docs/usage/startup/

$ npm install pm2 -g

[inl-pd-autotest]

systemd on CentOS 7, using pm2 startup without details (like systemd or centos).
I need pm2 to be started by root, so that pm2 ls executed by root would list the jobs.
The job needs to be autostarted by an unprivileged user.
This scenario still fails (pm2 2.7.2), nothing is fixed.

[Xaekai]

Having read many many issues, it seems like they have given up on supporting this software in the way most people want to use it: running as root and all managed apps either are started as less privileged users, or drop privs themselves after binding privileged resources.

I guess someone needs to make a hard fork that supports running as root and only as root to gut any possible confusion.

[Unitech]

looking to it