Discourse deployment in Kubernetes

Prerequisite:

• Have a Postgres and a Redis instance running. Using helm to deploy is strongly recommended. It's really easy to use.

Steps:

1. Create discourse user and database in PostgreSQL. Ensure that discourse is a superuser unless it will cause cannot create extension hstore error when building Discourse container.
2. Copy web_only.yml to discourse_docker/containers and edit it to meet your need
3. Build Docker image using ./launcher bootstrap web_only. If you want to upload image to your private hub, you can do so.
4. Edit k8s_deploy/01pvc.yaml. Typically you would like to change storage class. I use nfs here.
5. Edit 02discourse.yaml and 03service.yaml if you need to. This is entirly optional.
6. kubectl apply -f k8s_deploy and you will see your app running. Use [ClusterIP]:80 to see your app now.

References:

• https://medium.freecodecamp.org/how-to-set-up-an-internal-team-forum-in-half-a-day-using-discourse-b13588d907fe
• https://github.com/discourse/discourse_docker