infra/docs/mediawiki-updates.md

# Updating mediawiki docker container

See the [mediawiki-oidc-docker repository](https://git.pub.solar/pub-solar/mediawiki-oidc-docker#updating-the-docker-image)
for instructions on updating our customized mediawiki docker image.

To deploy a new docker image to `nachtigall`, first bump the mediawiki version
of the docker image tag in `hosts/nachtigall/apps/mediawiki.nix` (search for
`image`).

Next, push your changes to https://git.pub.solar and get them reviewed and
approved.

After approval, create a fresh backup of the database and deploy the changes to
`nachtigall`. Run the following after [SSH'ing to `nachtigall`](./administrative-access.md#ssh-access):

```
sudo -u postgres pg_dump --create -Fc mediawiki > mediawiki-db-$(date +%F).dump
exit
```

```
deploy --targets '.#nachtigall'
```

Then, finalize the update by running the database migration script (in a [SSH](./administrative-access.md#ssh-access) shell on `nachtigall`):

```
docker exec -it mediawiki bash
php maintenance/run.php update.php
```