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https://github.com/permitio/opal-helm-chart

You know, for Kubernetes
https://github.com/permitio/opal-helm-chart

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You know, for Kubernetes

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opal



OPAL Helm Chart for Kubernetes

OPAL is an administration layer for Open Policy Agent (OPA), detecting changes to both policy and policy data in realtime and pushing live updates to your agents.

OPAL brings open-policy up to the speed needed by live applications. As your application state changes (whether it's via your APIs, DBs, git, S3 or 3rd-party SaaS services), OPAL will make sure your services are always in sync with the authorization data and policy they need (and only those they need).

[Check out OPAL main repo here.](https://github.com/permitio/opal)

### Installation

OPAL Helm chart could be installed only with [Helm 3](https://helm.sh/docs/).
The chart is published to public Helm repository, [hosted on GitHub itself](https://permitio.github.io/opal-helm-chart/). It's recommended to install OPAL into a dedicated namespace.

Add Helm repository

```
helm repo add permitio https://permitio.github.io/opal-helm-chart
helm repo update
```

Install the latest version

```
helm install --create-namespace -n opal-ns opal permitio/opal
```

Search for all available versions

```
helm search repo opal --versions
```

### Deploy OPAL to your Kubernetes cluster

Install specific version (with default configuration):

```
helm install --create-namespace -n opal-ns --version x.x.x opal permitio/opal
```

Install specific version (with custom configuration provided as YAML):

```
helm install -f myvalues.yaml --create-namespace -n opal-ns --version x.x.x opal permitio/opal
```

`myvalues.yaml` must conform to the [json schema](https://raw.githubusercontent.com/permitio/opal-helm-chart/master/values.schema.json).

### Verify installation

OPAL Client should populate embedded OPA instance with polices and data from configured Git repository.
To validate it - one could create port-forwarding to OPAL client Pod. Port 8181 is the embedded OPA agent.

```
kubectl port-forward -n opal-ns service/opal-client 8181:8181
```

Then, open http://localhost:8181/v1/data/ in your browser to check OPA data document state.

### Important Configuration

This is not a comprehensive list, but includes the main variables you have to think about

| Variable | Description |
| ---------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------ |
| `server.policyRepoUrl` | Git repository holding policy code (& optionally policy data) to be tracked by OPAL |
| `server.dataConfigSources` | Data sources to be published to clients (and their managed OPAs) |
| `server.dataConfigSources.config.entries` | Static list of data source entries (See [OPAL Docs](https://docs.opal.ac/getting-started/running-opal/run-opal-server/data-sources)) |
| `server.dataConfigSources.external_source_url` | URL to dynamically fetch data sources entries from (See [OPAL Docs](https://docs.opal.ac/tutorials/configure_external_data_sources)) |
| `server.broadcastUri` | Backend for broadcasting updates across multiple opal-server processes (necessary if either `server.uvicornWorkers` or `server.replicas` is > 1) |
| `server.uvicornWorkers` | Count of gunicorn workers (/processes) per opal-server replica |
| `server.replicas` | opal-server's deployment replica count |
| `server.extraEnv` | Extra configuration for opal-server (see [OPAL Docs](https://docs.opal.ac/tutorials/configure_opal)) |
| `client.extraEnv` | Extra configuration for opal-server [OPAL Docs](https://docs.opal.ac/tutorials/configure_opal) |

**Note:** If you leave `server.dataConfigSources` with no entries - The chart would automatically set `OPAL_DATA_UPDATER_ENABLED: False` in `client.extraEnv` so client won't report an unhealthy state.