Heroku Buildpack for Metabase

Add the following to your app.json:

"buildpacks": [
  {
    "url": "https://github.com/ably-forks/metabase-buildpack"
  }
]

Upgrading Metabase

The value specified in bin/version is what will be downloaded when the slugs are built on Heroku. To bump the version simply set this file to the desired version and open a pull request.

Testing upgrades

To test updates before merging to main, you'll need to spin up a test Heroku app that uses the PR. To do that you need to have the Heroku CLI installed.

Ensure you're logged in:

heroku login

Create a new app, set the first buildpack to heroku/jvm

heroku apps:create metabase-upgrade-test --team ably --buildpack heroku/jvm

Add the PR branch as a buildpack, not the branch name is specified after the # in the buildpack URL.

heroku buildpacks:add https://github.com/ably-forks/metabase-buildpack#branch-name-from-pr --app metabase-upgrade-test

Add a PostgreSQL database to the test app:

heroku addons:create heroku-postgresql:mini -a metabase-upgrade-test

Next you would want to deploy a copy of Metabase to this test Heroku app, for that you need to follow the instructions in the README of our metabase repository.

After you've deployed Metabase and you confirm it is working you can merge the PR and destroy the test app:

heroku apps:destroy -a metabase-upgrade-test

Empty commits for deploying updates

Clone this repository from Heroku:

$ heroku login
$ heroku git:clone -a my-metabase 
$ cd my-metabase

You might also need to reset your local main to match Heroku if someone else deployed:

$ git fetch heroku
$ git reset --hard heroku/main

Use an empty commit to trigger a fresh build on Heroku:

$ git commit --allow-empty -m Upgrade metabase
$ git push heroku main