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 current maintenance status of app
    maintenance:custom-page <app>                   Imports a tarball from stdin; should contain at least maintenance.html
    maintenance:off <app>                           Take the app out of maintenance mode
    maintenance:on <app>                            Put the app into maintenance mode

usage

Check maintenance status of my-app

# dokku maintenance my-app            # Server side
$ ssh [email protected] maintenance my-app # Client side

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

Enable maintenance mode for my-app

# dokku maintenance:on my-app            # Server side
$ ssh [email protected] maintenance:on my-app # Client side

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

Disable maintenance mode for my-app

# dokku maintenance:off my-app            # Server side
$ ssh [email protected] maintenance:off 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 [email protected] 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”).