Provisioning a Kubernetes cluster on GKE using Pulumi

README.md

Install the node packages

npm install

Provision cloud resources using Pulumi

pulumi up

index.js

import * as pulumi from "@pulumi/pulumi";
import * as gcp from "@pulumi/gcp";
import * as k8s from "@pulumi/kubernetes";

const clusterLocation = "us-central1-a"

export const k8sCluster = new gcp.container.Cluster("my-cluster-yay", {
  initialNodeCount: 1,
  removeDefaultNodePool: true,
  location: clusterLocation,
});

const nodePool = new gcp.container.NodePool("primary-node-pool", {
  cluster: k8sCluster.name,
  initialNodeCount: 1,
  location: k8sCluster.location,
  nodeConfig: {
    preemptible: true,
    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"
    ],
  },
  management: {
    autoRepair: true,
    autoUpgrade: true,
  },
}, {
  dependsOn: [k8sCluster],
});

export const k8sConfig = pulumi.
  all([ k8sCluster.name, k8sCluster.endpoint, k8sCluster.masterAuth ]).
  apply(([ name, endpoint, auth ]) => {
    const context = `${gcp.config.project}_${gcp.config.zone}_${name}`;
    return `apiVersion: v1
clusters:
- cluster:
    certificate-authority-data: ${auth.clusterCaCertificate}
    server: https://${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 const k8sProvider = new k8s.Provider("gkeK8s", {
  kubeconfig: k8sConfig,
}, {
  dependsOn: [nodePool],
});

package.json

{
    "name": "my-cluster",
    "devDependencies": {
        "@types/node": "^14"
    },
    "dependencies": {
        "@pulumi/pulumi": "^3.0.0",
        "@pulumi/gcp": "^5.0.0",
        "@pulumi/kubernetes": "^3.0.0"
    }
}

Pulumi.dev.yaml

config:
  gcp:project: "my-project-created-on-gcp"

Pulumi.yaml

name: my-cluster
runtime: nodejs
description: My Kubernetes cluster using Pulumi

tsconfig.json

{
    "compilerOptions": {
        "strict": true,
        "outDir": "bin",
        "target": "es2016",
        "module": "commonjs",
        "moduleResolution": "node",
        "sourceMap": true,
        "experimentalDecorators": true,
        "pretty": true,
        "noFallthroughCasesInSwitch": true,
        "noImplicitReturns": true,
        "forceConsistentCasingInFileNames": true
    },
    "files": [
        "index.ts"
    ]
}