Deploy the ejbca helm chart on Oracle Kubernetes Engine (OKE)

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Pulumi · Accepted Answer

To deploy the EJBCA Helm chart on Oracle Kubernetes Engine (OKE) using Pulumi, you will need to create an instance of OKE and then deploy the chart to it. Below is a step-by-step guide and a Pulumi TypeScript program that achieves this.

1. **Setting up OKE**: First, you need to create a Kubernetes cluster in Oracle Cloud Infrastructure (OCI). For this, we use the `oci.ContainerEngine.Cluster` resource which sets up OKE.

2. **Deploying the Helm Chart**: Once the cluster is provisioned, we will use the `kubernetes.helm.sh/v3.Chart` resource in the Pulumi Kubernetes provider to deploy the EJBCA Helm chart.

Here is a Pulumi program written in TypeScript that outlines these steps:

```typescript
import * as oci from "@pulumi/oci";
import * as k8s from "@pulumi/kubernetes";
import * as pulumi from "@pulumi/pulumi";

// Step 1: Setting up the Oracle Kubernetes Engine (OKE)
// Replace these values with the appropriate OCI Compartment ID, VCN ID, and subnet IDs for your environment.
const compartmentId = "ocid1.compartment.oc1..xxxxx";
const vcnId = "ocid1.vcn.oc1..xxxxx";
const subnetIds = ["ocid1.subnet.oc1..xxxxx"];

const okeCluster = new oci.containerengine.Cluster("myOkeCluster", {
    compartmentId: compartmentId,
    vcnId: vcnId,
    kubernetesVersion: "v1.21.0", // Specify the version of Kubernetes you want to use
    options: {
        serviceLbSubnetIds: subnetIds,
        // Add any additional options needed for your specific setup
    },
});

// Step 2: Setting up the Kubernetes provider to connect with the OKE cluster
const kubeconfig = okeCluster.kubeconfig.content.apply(content => {
    const kubeconfig = Buffer.from(content, "base64").toString("utf8");
    return pulumi.output(kubeconfig);
});

const k8sProvider = new k8s.Provider("okeK8sProvider", {
    kubeconfig: kubeconfig
});

// Step 3: Deploying the EJBCA Helm Chart using Pulumi
const ejbcaChart = new k8s.helm.v3.Chart("ejbca", {
    chart: "ejbca",
    version: "1.0.0",  // Replace with the version of the chart you would like to deploy
    fetchOpts: {repo: "http://myhelmrepo.com"}, // Replace with the actual Helm chart repository URL
}, {provider: k8sProvider});

// Export the Kubernetes cluster's name and endpoint
export const clusterName = okeCluster.name;
export const clusterEndpoint = okeCluster.endpoints.apply(endpoints => endpoints.publicEndpoint);
```

Here's what each part is doing:

- We import the necessary Pulumi packages for OCI and Kubernetes.
- We create an OKE cluster using `oci.containerengine.Cluster`. In this example, placeholders like `ocid1.compartment.oc1..xxxxx` are used. You would replace these with the actual OCID values you have from your Oracle Cloud Infrastructure account.
- The `kubeconfig` is retrieved from the OKE cluster, which will be used for setting up the Kubernetes provider.
- With the Kubernetes provider configured, we can now deploy the Helm chart by specifying the chart name and version. You'll need to replace `http://myhelmrepo.com` with the actual URL of the Helm chart repository that hosts the EJBCA chart.
- Finally, we export the OKE cluster name and the public endpoint so you can interact with your Kubernetes cluster.

Ensure that you have the Pulumi CLI installed and are logged in to your OCI account. Remember to replace placeholder values with actual values from your environment. You can then run this code with Pulumi to provision your infrastructure.