What is the proper command to restart a Dokku app from SSH?

Question

A Rails app I deployed on DigitalOcean using Dokku crashed and started returning 500 errors.

How can I restart it without pushing an empty commit?

Pax

Answer 1

dokku ps:restart <app> works for me logged in with dokku system user.

Use dokku apps:list to list your apps.

Panzer

This worked for me, and seems official, as of 2016-12-22. I found my domain returning 502's (Bad Gateway) because my app was down. – Essence

Answer 2

If you just want restart the web app, run dokku deploy myapp

Dictum

Answer 3

Found it there! You have to use Docker restart command directly.

Connect to your server by SSH and run:

docker restart `cat /home/dokku/myapp/CONTAINER`

myapp being the name of my application. Change the path to your app if needed.

Pax

Atleast from v. 0.3.15 onwards you can run dokku help to see all available dokku commands. – Neoplasm

dokku ps:restart APP would be the proper way to do this now. – Lotz

I found this to cause trouble with dokku. It doesn't expect you to have gone behind its back and restart directly with docker. – Albumin

thanks @Albumin there is now an way to do it in dokku directly, I changed the accepted answer – Pax

Answer 4

The proper way to restart an app is:

dokku release myapp
dokku deploy myapp

This is how it's done in plugins/config/commands after setting environment variables:

config_restart_app() {
  APP="$1";

  echo "-----> Releasing $APP ..."
  dokku release $APP
  echo "-----> Release complete!"
  echo "-----> Deploying $APP ..."
  dokku deploy $APP
  echo "-----> Deploy complete!"
}

I have sent a pull request to add a dokku restart myapp command.

Ramires

Answer 5

EDIT

The 'new' way appears to be to issue the command 'dokku ps:restart myapp'

END EDIT

An easier way might be to use a plugin:

https://github.com/scottatron/dokku-rebuild

Then issue

dokku rebuild myapp

Sicken