Lets you fetch the git revision hash used to build the app from the GIT_REV

• dokku 0.4.0+
• docker 1.8.x

# on 0.3.x
cd /var/lib/dokku/plugins
git clone https://github.com/cjblomqvist/dokku-git-rev.git dokku-git-rev
dokku plugins-install

# on 0.4.x
dokku plugin:install https://github.com/cjblomqvist/dokku-git-rev.git dokku-git-rev

This plugin provides hooks:

• post-release-buildpack: adds the GIT_REV env var
• post-release-dockerfile: adds the GIT_REV env var
• receive-app: captures the current GIT_REV

On git deploys, the GIT_REV environment variable will be set in /app/.profile.d/git_rev.sh and be available for your usage.

• nornagon who made the initial plugin (albeit it was not really working) - this plugin is built upon his work (https://github.com/nornagon/dokku-git-rev)
• mlebkowski/puck who helped me out and made the initial verison of the receive-app based version. I based this version upon that idea and made it bug free and more stable (https://github.com/mlebkowski/dokku-git-rev/tree/fix/first-push)