Deploy the keycloak-umbrella helm chart on Opensshift

Question

Pulumi · Accepted Answer

To deploy the `keycloak-umbrella` Helm chart on OpenShift, we will use Pulumi's Kubernetes provider. The `kubernetes.helm.v3.Chart` resource allows us to deploy a Helm chart within a Kubernetes cluster from Pulumi. Before running the following program, ensure you have access to your OpenShift cluster and that `kubectl` is configured to connect to it. This will allow Pulumi to interact with your cluster.

First, we will create a project and name it appropriately, for instance, `keycloak-openshift`. In our Pulumi TypeScript program, we will import the necessary packages and create a new instance of `kubernetes.helm.v3.Chart` which represents the `keycloak-umbrella` Helm chart deployment.

The `Chart` resource requires several inputs:
- `chart`: The name of the chart, in our case, it's `"keycloak-umbrella"`.
- `version`: The version of the chart you want to deploy. You will need to provide a specific version or leave it undefined to pull the latest one.
- `namespace`: The target namespace in your OpenShift cluster for the deployment. If the namespace does not exist, it will need to be created separately, or you can set `createNamespace` to `true` to create it as part of the Helm chart deployment.
- `repo`: The URL of the Helm repository that contains the `keycloak-umbrella` chart.
- `values`: A set of configuration values for the Helm chart. You can provide custom values that will overwrite the defaults in the Helm chart. Since Helm charts can be complex, you should look at the default `values.yaml` of the keycloak-umbrella Helm chart to understand what values you can and should configure.

Here is the Pulumi program written in TypeScript:

```typescript
import * as pulumi from "@pulumi/pulumi";
import * as kubernetes from "@pulumi/kubernetes";

// Enter the specific values for repo and version accordingly
const repo = "https://charts.example.com/";
const version = "1.0.0"; // Use the appropriate chart version
const namespace = "keycloak";

const keycloakChart = new kubernetes.helm.v3.Chart("keycloak-umbrella", {
    chart: "keycloak-umbrella",
    version: version,
    namespace: namespace,
    fetchOpts: {
        repo: repo,
    },
    // If you have custom values, you can include them here,
    // for example, to set the admin username and password:
    values: {
        keycloak: {
            username: "admin",
            password: "admin"
        }
        // include other custom values as needed
    },
}, {provider: openshiftProvider}); // assumes an existing provider configuration

// Export the Keycloak endpoint
export const keycloakEndpoint = keycloakChart.getResourceProperty(
    "v1/Service", "keycloak", "status"
).apply(status => status.loadBalancer.ingress[0].hostname);

```

This is a basic setup to get you started with deploying a Helm chart on OpenShift using Pulumi. Be sure to replace the `repo`, `version`, and `values` with the appropriate details for your deployment. The `values` property is particularly important as it allows you to provide any custom configurations for your Keycloak setup.

Don't forget to check the Kubernetes provider documentation [here](https://www.pulumi.com/docs/reference/pkg/kubernetes/helm/v3/chart/) for additional details and configuration options.

After writing this code, you can run `pulumi up` to start the deployment process. If you encounter any issues, ensure that you have the correct access permissions and that the Helm chart exists in the specified repository with the version you've mentioned.