dokku-maintenance

dokku-maintenance is a plugin for dokku that gives the ability to enable or disable maintenance mode for an application.

requirements

• dokku 0.4.x+
• docker 1.8.x

installation

# on 0.4.x+
sudo dokku plugin:install https://github.com/dokku/dokku-maintenance.git maintenance

commands

$ dokku help
    maintenance <app>                               Display the list of commands
    maintenance:custom-page <app>                   Imports a tarball from stdin; should contain at least maintenance.html
    maintenance:disable <app>                       Disable app maintenance mode
    maintenance:enable <app>                        Enable app maintenance mode
    maintenance:report [<app>] [<flag>]             Displays a maintenance report for one or more apps

usage

Check maintenance status of my-app

# dokku maintenance:report my-app            # Server side
$ ssh dokku@server maintenance:report my-app # Client side

-----> Maintenance status of my-app:
       off

Enable maintenance mode for my-app

# dokku maintenance:enable my-app            # Server side
$ ssh dokku@server maintenance:enable my-app # Client side

-----> Enabling maintenance mode for ruby-test...
       done

Disable maintenance mode for my-app

# dokku maintenance:disable my-app            # Server side
$ ssh dokku@server maintenance:disable my-app # Client side

-----> Disabling maintenance mode for ruby-test...
       done

Use a custom page for maintenance

# dokku maintenance:custom-page my-app < my-custom-page.tar            # Server side
$ ssh dokku@server maintenance:custom-page my-app < my-custom-page.tar # Client side

-----> Importing custom maintenance page...
maintenance.html
image.jpg
       done

You have to provide at least a maintenance.html page but you can provide images, css, custom font, etc. if you want. Just write absolute paths in your html and not relative ones (so to serve image.jpg which is at the same level than your maintenance.html page you’ll write “/image.jpg” instead of “./image.jpg” or “image.jpg”).