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# Nextcloud + Onlyoffice helm chart
This helm chart installs Nextcloud and ONLYOFFICE
and configures Nextcloud to use ONLYOFFICE as its document editor.
Depends on the
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[Nextcloud](https://github.com/nextcloud/helm/tree/master/charts/nextcloud)
chart.
For configuration details on Nextcloud, refer to their documentation.
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Parts of this chart are based on a copy of the 
[COLLABORA code helm chart](https://github.com/helm/charts/tree/master/stable/collabora-code)
**NOTE:** The `onlyoffice.server_name` variable needs to be
overwritten with a URL that points to your onlyoffice for this to work
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correctly.
See `values-local.yaml.example` for an example of domain configurations
you might want to do.
These instructions assume you copy `values-local.yaml.example` to `values-local.yaml`
and edit it.
**NOTE:** It is very important that you uncomment and set the following password and
secrets variables manually when you run helm install:
- `nextcloud.nextcloud.password`
- `nextcloud.mariadb.auth.password`
- `nextcloud.mariadb.auth.rootPassword`
- `redis.auth.password`
- `onlyoffice.jwtSecret`
- `rabbitmq.auth.password`
- `rabbitmq.auth.erlangCookie`
- `global.onlyofficeDb.password`
**NOTE:** The chart currently includes a ConfigMap with a name that is not
dependent on the release name. This means that the chart cannot be installed
more than once into the same namespace. If you need to install Nextcloud and
Onlyoffice several times into the same cluster, use different namespaces.

### Install from the remote repo

This is the way to go if you want to use the packaged chart as is. If you'd like to make changes before installing, refer to the next section.

helm repo add nextcloud-onlyoffice https://open.greenhost.net/api/v4/projects/1/packages/helm/stable
```

helm install --wait -f values-local.yaml my-nextcloud nextcloud-onlyoffice/nextcloud-onlyoffice
**The `--wait` is important!** We need that because of how [helm chart
hooks](https://helm.sh/docs/topics/charts_hooks/) work:

> Note that if the --wait flag is set, the library will wait until all resources
> are in a ready state and will not run the post-install hook until they are
> ready.

The job in this chart needs the Nextcloud pod to be in a ready state before
being executed.

### Install from a local repo

Start by cloning the nextcloud helm chart repo:

```console
git clone https://open.greenhost.net/stackspin/nextcloud.git
cd nextcloud
Add the dependencies repositories:
```console
# nextcloud chart
helm repo add nextcloud https://nextcloud.github.io/helm
# rabbitmq chart
helm repo add bitnami https://charts.bitnami.com/bitnami
```

Fetch the chart dependencies:
```console
helm dependency build
```

helm install --wait -f values-local.yaml my-nextcloud .
**The `--wait` is important!** We need that because of how [helm chart
hooks](https://helm.sh/docs/topics/charts_hooks/) work:

> Note that if the --wait flag is set, the library will wait until all resources
> are in a ready state and will not run the post-install hook until they are
> ready.

The job in this chart needs the Nextcloud pod to be in a ready state before
being executed.

This chart has a post-install/post-upgrade hook that installs apps
(see below) and applies a custom configuration to set up those apps and
integration with ONLYOFFICE as well as the Stackspin OIDC provider.
The hook job needs the Nextcloud pod to be in a ready state before
being executed.
## Apps

The Nextcloud app store allows admin users to install applications, many of
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which have not undergone security testing.
For that reason we disabled downloading new apps via the app store.
Upon installing Nextcloud it is possible to specify 
which applications from the app store are available.
It is also possible to enable them by default.
Apps that are not enabled by default can be enabled by admins
through the Apps screen in Nextcloud.
Apps that are installed this way are automatically updated to their newest
version every time Nextcloud is updated.

To install apps, you can add entries to the following helm values.
- `default` if this app will part of the Stackspin defaults.
- `custom` if you're installing this app only for a specific cluster.
These apps will then be installed when the Nextcloud pod starts. Both `default` and `custom` are treated the same way -- we have both to make it easier to organize your helm values.
    - name: oidc_login  # Installs oidc_login app
      enabled: false    # Disables oidc_login by default
    - name: polls
      enabled: false
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Note that manually enabled apps will not be disabled upon rerunning the installer,
which can lead to incompatibility errors upon Nextcloud Server version upgrades.
Check for `postStart` errors as mentioned above.

Additionally, we have added an option to install Apps immediately from GitHub releases.
Unlike when installing them with `occ`,
this allows us to pin the versions to specific GitHub releases.
To install an app from GitHub releases:
    - name: onlyoffice
      # The name of the repository. This is the name for a repository located at
      # https://github.com/ONLYOFFICE/onlyoffice-nextcloud:
      github_repository: ONLYOFFICE/onlyoffice-nextcloud
      # The version to install or upgrade the app to
      version: 7.5.4
      # The name of the "asset" to download from this release. This name can be
      # found on https://github.com/ONLYOFFICE/onlyoffice-nextcloud/releases
      release_filename: onlyoffice.tar.gz
      # Enable the app after installing it
      enabled: true
## Values

The included `values.yaml` file configures Nextcloud to use a Mariadb database,
otherwise the Job cannot access the database for plugin installation.

It also configures NextCloud to use a persistent volume, because this is
necessary for the integration job to work. Be sure to change the size of the
persistent disk (default: 2 GB) if you need more.

| Parameter                                                    | Description                                                                             | Default                                  |
| ------------------------------------------------------------ | --------------------------------------------------------------------------------------- | ---------------------------------------- |
| `nextcloud.*`                                                | See [NextCloud helm chart](https://github.com/helm/charts/tree/master/stable/nextcloud) |                                          |
| `onlyoffice.replicaCount`                                    | Number of provisioner instances to deployed                                             | `1`                                      |
| `onlyoffice.strategy`                                        | Specifies the strategy used to replace old Pods by new ones                             | `Recreate`                               |
| `onlyoffice.jwtSecret`                                       | Used to set the JWT shared secret between ONLYOFFICE and NC                             | `secret`                                 |
| `onlyoffice.image.repository`                                | Provisioner image                                                                       | `onlyoffice/documentserver`              |
| `onlyoffice.image.tag`                                       | Version of provisioner image                                                            | `5.3.1.26`                               |
| `onlyoffice.image.pullPolicy`                                | Image pull policy                                                                       | `IfNotPresent`                           |
| `onlyoffice.server_name`                                     | Onlyoffice server URL                                                                   | `onlyoffice.domain`                      |
| `onlyoffice.ingress.enabled`                                 |                                                                                         | `false`                                  |
| `onlyoffice.ingress.annotations`                             |                                                                                         | `{}`                                     |
| `onlyoffice.ingress.paths`                                   |                                                                                         | `[]`                                     |
| `onlyoffice.ingress.hosts`                                   |                                                                                         | `[]`                                     |
| `onlyoffice.ingress.tls`                                     |                                                                                         | `[]`                                     |
| `onlyoffice.livenessProbe.enabled`                           | Turn on and off liveness probe                                                          | `true`                                   |
| `onlyoffice.livenessProbe.initialDelaySeconds`               | Delay before liveness probe is initiated                                                | `30`                                     |
| `onlyoffice.livenessProbe.periodSeconds`                     | How often to perform the probe                                                          | `10`                                     |
| `onlyoffice.livenessProbe.timeoutSeconds`                    | When the probe times out                                                                | `2`                                      |
| `onlyoffice.livenessProbe.successThreshold`                  | Minimum consecutive successes for the probe                                             | `1`                                      |
| `onlyoffice.livenessProbe.failureThreshold`                  | Minimum consecutive failures for the probe                                              | `3`                                      |
| `onlyoffice.readinessProbe.enabled`                          | Turn on and off readiness probe                                                         | `true`                                   |
| `onlyoffice.readinessProbe.initialDelaySeconds`              | Delay before readiness probe is initiated                                               | `30`                                     |
| `onlyoffice.readinessProbe.periodSeconds`                    | How often to perform the probe                                                          | `10`                                     |
| `onlyoffice.readinessProbe.timeoutSeconds`                   | When the probe times out                                                                | `2`                                      |
| `onlyoffice.readinessProbe.successThreshold`                 | Minimum consecutive successes for the probe                                             | `1`                                      |
| `onlyoffice.readinessProbe.failureThreshold`                 | Minimum consecutive failures for the probe                                              | `3`                                      |
| `onlyoffice.securityContext`                                 | Change pod security contenxt                                                            | `{}`                                     |
| `onlyoffice.resources`                                       | Resources required (e.g. CPU, memory)                                                   | `{}`                                     |
| `onlyoffice.nodeSelector`                                    | Node labels for pod assignment                                                          | `{}`                                     |
| `onlyoffice.affinity`                                        | Affinity settings                                                                       | `{}`                                     |
| `onlyoffice.tolerations`                                     | List of node taints to tolerate                                                         | `[]`                                     |
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## Running tests

This chart comes with [Cypress e2e tests](https://www.cypress.io/) that you can
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run by running `helm test <release name>`. Add the `--logs` parameter if you
want to immediately see the console output from the test.
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### Running the tests locally

If the tests fail, you'll want to observe the steps Cypress executes in the
browser. To do so, install Cypress with `npm`
#### Setup

```console
npm install -D
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```

#### Usage

Export KUBECONFIG to access a cluster with an existing nextcloud helm chart installation.

```console
export KUBECONFIG=…/kube_config_cluster.yml
Set environment variables to use with Cypress. Read the script to see the
possible values and adjust them if necessary.
```console
source get-cypress-vars.sh <release_name>
```

Start Cypress GUI:

```console
./node_modules/.bin/cypress open
```

or just run the tests from the console:

```console
./node_modules/.bin/cypress run --headed
```

[^1]: If you want to test a version that is not on the `main` branch yet, use `https://open.greenhost.net/api/v4/projects/1/packages/helm/unstable`
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## Releasing

To publish a new version of the helm chart:
1. Increase the chart version in `Chart.yaml`.
2. Update the appVersion (including both nextcloud and onlyoffice) in Chart.yaml.
3. Update `CHANGELOG.md` and check that it includes relevant changes, including
   ones added by renovatebot.
4. Commit and push these changes to `main`.
5. Create a new git tag for the new release and push it to gitlab as well.
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The last step will trigger a CI run that will package and publish the helm chart.