Deploy the opsdroid helm chart on Google Kubernetes Engine (GKE)
TypeScriptTo deploy the opsdroid Helm chart on Google Kubernetes Engine (GKE), you'll first need to provision a GKE cluster and then use the Helm chart to deploy opsdroid onto that cluster. To achieve this with Pulumi, you'll write a program that creates a Kubernetes cluster on Google Cloud Platform (GCP) and uses the Helm package manager to deploy the opsdroid application.
Here's a breakdown of the steps we'll take in the Pulumi program:
- We'll start by creating a GKE cluster using the
google-native.container.v1.Cluster
resource. - After the cluster is set up, we'll obtain the kubeconfig for connecting to the cluster with the Kubernetes provider in Pulumi.
- Then, we'll use the Kubernetes provider to deploy the opsdroid Helm chart to the GKE cluster.
Below is the TypeScript Pulumi program to achieve the above steps:
import * as pulumi from "@pulumi/pulumi"; import * as gcp from "@pulumi/gcp"; import * as k8s from "@pulumi/kubernetes"; // Step 1: Create a GKE cluster const cluster = new gcp.container.Cluster("opsdroid-cluster", { initialNodeCount: 2, minMasterVersion: "latest", nodeVersion: "latest", nodeConfig: { machineType: "n1-standard-1", oauthScopes: [ "https://www.googleapis.com/auth/compute", "https://www.googleapis.com/auth/devstorage.read_only", "https://www.googleapis.com/auth/logging.write", "https://www.googleapis.com/auth/monitoring" ], }, }); // Step 2: Obtain the kubeconfig const kubeconfig = pulumi. all([cluster.name, cluster.endpoint, cluster.masterAuth]). apply(([name, endpoint, masterAuth]) => { const context = `${gcp.config.project}_${gcp.config.zone}_${name}`; return `apiVersion: v1 clusters: - cluster: certificate-authority-data: ${masterAuth.clusterCaCertificate} server: https://${endpoint} name: ${context} contexts: - context: cluster: ${context} user: ${context} name: ${context} current-context: ${context} kind: Config preferences: {} users: - name: ${context} user: auth-provider: config: cmd-args: config config-helper --format=json cmd-path: gcloud expiry-key: '{.credential.token_expiry}' token-key: '{.credential.access_token}' name: gcp `; }); // Export the kubeconfig to a file export const kubeconfigFile = new pulumi.asset.AssetArchive({ "kubeconfig.yaml": new pulumi.asset.StringAsset(kubeconfig), }); // Step 3: Deploy the opsdroid Helm chart using the Kubernetes provider const opsdroidRelease = new k8s.helm.v3.Chart("opsdroid", { chart: "opsdroid", version: "x.y.z", // specify the desired chart version here fetchOpts: { repo: "https://helm.love", // assuming opsdroid chart is in this repo }, }, { provider: new k8s.Provider("k8s-provider", { kubeconfig }) }); // Export the cluster name and kubeconfig file export const clusterName = cluster.name; export const kubeconfigOutput = kubeconfig;
Explanation of the Program:
-
We import the required Pulumi packages
@pulumi/pulumi
for base Pulumi functionality,@pulumi/gcp
for Google Cloud resources, and@pulumi/kubernetes
for interacting with Kubernetes. -
We create a GKE
Cluster
resource. The naming convention 'opsdroid-cluster' is arbitrary and you could name it anything meaningful. We start with a small cluster of 2 nodes using standard machine types and include necessary OAuth scopes that allow the cluster nodes to interact with other GCP services. -
The
kubeconfig
is generated dynamically based on the cluster details. This configuration allows your Pulumi Kubernetes provider to authenticate with your GKE cluster. -
We create a
- We'll start by creating a GKE cluster using the