feat(discourse): switch app to official discourse/discourse image (experimental)
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Replaces the paywalled bitnamilegacy app with the official discourse/discourse image behind Traefik. DB is reused as-is; uploads migrate from the legacy bitnami volume idempotently. The wrapper entrypoint injects the db_password and smtp_password secrets (the official image has no *_FILE support). SMTP env vars are renamed to the official names; release notes cover the migration. Recipe 0.8.1+3.5.0 -> 1.0.0+3.5.3 (major: new image, env/volume/port changes).
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notplants
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README.md
79
README.md
@ -6,67 +6,54 @@ A platform for community discussion
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<!-- metadata -->
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* **Category**: Apps
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* **Status**:
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* **Image**: [`bitnami/discourse`](https://hub.docker.com/r/bitnami/discourse)
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* **Status**: 3, experimental
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* **Image**: [`discourse/discourse`](https://hub.docker.com/r/discourse/discourse), 4, upstream
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* **Healthcheck**: yes
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* **Backups**: no
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* **Backups**: yes
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* **Email**: yes
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* **Tests**: no
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* **Tests**: yes
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* **SSO**: no
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<!-- endmetadata -->
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> **Note**: this recipe runs the official, **experimental** `discourse/discourse`
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> image. Upstream does not yet recommend it for production — see
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> <https://meta.discourse.org/t/380646>. Use with care.
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## Basic usage
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1. Set up Docker Swarm and [`abra`]
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2. Deploy [`coop-cloud/traefik`]
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3. `abra app new discourse --secrets` (optionally with `--pass` if you'd like
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to save secrets in `pass`)
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4. `abra app config YOURAPPDOMAIN` - be sure to change `$DOMAIN` to something that resolves to
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your Docker swarm box
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3. `abra app new discourse --secrets`
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4. `abra app config YOURAPPDOMAIN` — set `DOMAIN` and `DISCOURSE_DEVELOPER_EMAILS`
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5. `abra app deploy YOURAPPDOMAIN`
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6. Open the configured domain in your browser to finish set-up
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6. Open the configured domain in your browser to finish set-up. The first account
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that registers with an address listed in `DISCOURSE_DEVELOPER_EMAILS` becomes
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an admin.
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[`abra`]: https://git.autonomic.zone/autonomic-cooperative/abra
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[`coop-cloud/traefik`]: https://git.autonomic.zone/coop-cloud/traefik
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[`abra`]: https://docs.coopcloud.tech/abra/
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[`coop-cloud/traefik`]: https://git.coopcloud.tech/coop-cloud/traefik
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## To add a new admin user
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The app serves plain HTTP on port 80; Traefik terminates TLS in front of it. The
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image's built-in nginx/Let's Encrypt is disabled by the recipe (`install-ssl`
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override) so it works behind the reverse proxy.
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1. Login to the instance `abra app run APPNAME app sh`
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2. `cd /opt/bitnami/discourse`
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3. `RAILS_ENV=production bundle exec rake admin:create` and follow prompts.
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## Add an admin user
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## Install plugins
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```
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abra app run YOURAPPDOMAIN app discourse admin create
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```
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1. Login to instance `abra app run APPNAME app sh`
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2. `cd /bitnami/discourse/plugins/`
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3. `git clone plugin.git` for example `https://github.com/discourse/discourse-openid-connect.git`
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4. `abra app restart YOURAPPDOMAIN app`
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## Migrating from the previous (bitnami) recipe
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### Events / calendar plugin
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The official image stores uploads under `/shared` rather than bitnami's
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`/bitnami/discourse`. On first boot the recipe copies uploads + backups from the
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old bitnami volume (mounted read-only at `/legacy`) into `/shared`, once,
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idempotently. The Postgres database is reused as-is. After a successful migration
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a later recipe version will drop the transitional `/legacy` mount.
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We've had some luck running [discourse-events](https://github.com/paviliondev/discourse-events).
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If you are upgrading from the bitnami recipe, also remove the now-unused sidekiq
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service that swarm leaves behind (sidekiq runs inside the app container now):
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## Setup Notes
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Until issue #1 is fixed, the default user is `user` and the default password is `bitnami123`
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## Postgres major version upgrades
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Welcome to hell.
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1. `abra app run YOURAPPDOMAIN db pg_dumpall -U discourse | gzip > YOURAPPDOMAIN_db_DATE.sql.gz`
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2. `abra app volume ls YOURAPPDOMAIN`, find the name of the Postgres data volume
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3. `scp` the backup to your VPS
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4. `abra app undeploy YOURAPPDOMAIN`
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5. `abra app volume rm YOURAPPDOMAIN`, choose the Postgres data volume
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6. `abra app deploy YOURAPPDOMAIN`, then `abra app undeploy YOURAPPDOMAIN`
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7. `ssh` to the VPS, run (replacing `13-alpine` with the new Postgres version)
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`docker run -v YOURDATAVOLUME:/var/lib/postgresql/data -e POSTGRES_HOST_AUTH_METHOD=trust -it postgres:13-alpine`
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8. In another SSH session on the server, run `docker ps` to find the ID of the
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new Postgres container, then `docker exec -it CONTAINERID bash`
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9. In the shell you just launched, run `dropdb -U discourse discourse`, then
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`createdb -U discourse discourse`, then Ctrl+D or run `exit`
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10. In the second SSH session, run `zcat YOURAPPDOMAIN_db_DATE.sql.gz | docker exec -it CONTAINERID psql -U discourse`
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11. Exit the second SSH session
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12. Back in the first SSH session, Ctrl+C to shut down the database
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13. `abra app deploy YOURAPPDOMAIN`
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```
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docker service rm YOURSTACK_sidekiq
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```
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