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@ -4,17 +4,54 @@ title: Packager guide
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## How apps are versioned
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We simply take the version of the packaged app to be the same as the version of
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the main `app` service in the `compose.yml` file. So, if you are deploying
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`gitea/gitea:1.13.4` then the version of your Gitea app package version is
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`1.13.4`.
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Co-op Cloud follows the version scheme of the applications we're packaging, as
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far as possible; for example, [version `1.13.4` of our Gitea recipe][gitea]
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contains version `1.13.4` of Gitea. We're trying not to invent a new versioning
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scheme.
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Additionally, most apps have underlying services like databases and/or caches.
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When a new version is published and available in the `compose.yml` we use the
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`<version>_<revision>` syntax. So, if you are still on `1.13.4` for Gitea but
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you have `mariadb:10.6` upgraded from `mariadb:10.5` then the Gitea app package
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version would be `1.13.4_1`.
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This approach is still work-in-progress.
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Our high level goals of app versioning on this project are not to invent a new
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versioning system. Therefore, we try to follow the upstream versioning as much
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as possible. This scheme is still a work in progress.
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Versions are based on [Docker image tags][tags]: we don't currently have a plan for apps
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which only publish a `latest` or `master` tag, for instance.
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### Versioning different services
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Most apps have underlying services like databases and/or caches.
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When there's a new version of one of these services, but not the "main" service,
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we add/increment the `_<revision>` part at the end of the version.
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So, if you are still on `1.13.4` for Gitea, but you have `mariadb:10.6` upgraded
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from `mariadb:10.5`, then the Gitea recipe package version would be `1.13.4_1`.
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If you run `abra recipe gitea versions`, you'll see that there are a few
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available versions of the `gitea` recipe, two with the same version of the
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`gitea` image:
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```
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1.14.1-rootless:
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- app (gitea/gitea:1.14.1-rootless, 6244e9fc)
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- db (mariadb:10.5, 36288c67)
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1.14.1-rootless_1:
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- app (gitea/gitea:1.14.1-rootless, 6244e9fc)
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- db (mariadb:10.6, 718cb856)
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1.14.2-rootless:
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- app (gitea/gitea:1.14.2-rootless, bedf8d12)
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- db (mariadb:10.6, 718cb856)
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```
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Versions `1.14.1-rootless` and `1.14.1-rooless_1` differ only in their version
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of the `mariadb` service. If there had been several updates to the `mariadb`
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image in between updates to the `gitea` image, there might have also been
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`1.14.1-rooless_2`, `1.14.1-rooless_3` -- this is more likely with recipes which
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include services with several different images.
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!!! note
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Not all of these updates will be released as installable Co-op Cloud recipes
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-- in this example, there's no version with `gitea:1.14.2-rootless` and
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`mariadb:10.5`. If you need a specific combination, create a pull request or
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issue in the repository for the app recipe!
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[gitea]: https://git.autonomic.zone/coop-cloud/gitea/src/tag/1.13.4
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[tags]: https://docs.docker.com/engine/reference/commandline/tag/
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