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?

score 97 · Accepted Answer · edited Aug 06 '22 at 15:36

97

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

Use dokku apps:list to list your apps.

edited Aug 06 '22 at 15:36

billkw

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answered Mar 12 '15 at 23:01

Edu Lomeli

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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. – anonymous coward Dec 22 '16 at 17:16

score 31 · Answer 2 · answered Jun 24 '14 at 17:23

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

answered Jun 24 '14 at 17:23

menghan

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score 23 · Answer 3 · answered Jan 21 '14 at 00:56

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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.

answered Jan 21 '14 at 00:56

Spone

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Atleast from v. 0.3.15 onwards you can run `dokku help` to see all available dokku commands. – Jeewes Mar 28 '15 at 13:25
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`dokku ps:restart APP` would be the proper way to do this now. – Jose Diaz-Gonzalez Mar 18 '16 at 02:25
I found this to cause trouble with dokku. It doesn't expect you to have gone behind its back and restart directly with docker. – Adamantish Feb 03 '17 at 11:14
thanks @Adamantish there is now an way to do it in dokku directly, I changed the accepted answer – Spone Feb 03 '17 at 15:12

score 12 · Answer 4 · answered Aug 12 '14 at 07:50

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.

Aaron C. de Bruyn · Answer 5 · 2016-07-06T22:19:09.120

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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

edited Jul 06 '16 at 22:19

answered Sep 10 '14 at 04:37

Aaron C. de Bruyn

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

5 Answers5