1. Deploy the nginx-revproxy helm chart on Google Kubernetes Engine (GKE)


    To deploy the nginx-revproxy Helm chart on Google Kubernetes Engine (GKE), you'll need to follow these general steps:

    1. Provision a GKE cluster.
    2. Install the Helm chart for nginx reverse proxy onto the cluster.

    Here's a breakdown of this process in Pulumi using TypeScript:

    Provision a GKE Cluster

    To provision a GKE cluster, we use the google-native.container/v1beta1.Cluster resource from the google-native provider. This resource allows us to create and manage a GKE cluster.

    Install the nginx-revproxy Helm Chart

    To install a Helm chart, we use the kubernetes.helm.sh/v3.Release resource from the kubernetes provider. This resource is capable of deploying Helm charts.

    Below is a TypeScript program that creates a new GKE cluster and then deploys the nginx-revproxy Helm chart to that cluster. Note that you must have gcloud configured with credentials and appropriate permissions to create resources on Google Cloud Platform, and you must be logged in with the pulumi CLI.

    import * as pulumi from '@pulumi/pulumi'; import * as gcp from '@pulumi/gcp'; import * as k8s from '@pulumi/kubernetes'; // Create a GKE cluster const cluster = new gcp.container.Cluster("my-gke-cluster", { initialNodeCount: 2, minMasterVersion: "latest", nodeVersion: "latest", 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" ], }, }); // Export the Cluster name export const clusterName = cluster.name; // Export the Cluster endpoint export 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 `; }); // Create a Kubernetes provider instance that uses our cluster from above. const k8sProvider = new k8s.Provider("k8s-provider", { kubeconfig: kubeconfig, }); // Deploy the nginx-revproxy Helm chart const nginxRevproxyChart = new k8s.helm.v3.Chart("nginx-revproxy", { chart: "nginx-revproxy", version: "1.0.0", // Specify the version of the Helm chart fetchOpts:{ repo: "http://charts.example.com/", // Replace with the actual chart repository }, }, { provider: k8sProvider }); // Export the nginx-revproxy service's external IP address export const nginxRevproxyIp = nginxRevproxyChart.getResourceProperty("v1/Service", "nginx-revproxy", "status").apply(status => status.loadBalancer.ingress[0].ip);

    Breaking Down the Code

    1. Cluster Creation: Instantiate a GKE cluster with desired node count and versioning settings using the gcp.container.Cluster class.
    2. Kubeconfig Generation: Create the kubeconfig needed to interact with the cluster. The kubeconfig is dynamically generated with the necessary credentials and endpoint information.
    3. Kubernetes Provider: Setup the Pulumi Kubernetes provider configured to use our newly created GKE cluster's kubeconfig.
    4. Helm Chart Deployment: Use the k8s.helm.v3.Chart resource to deploy the nginx-revproxy Helm chart on our GKE cluster.

    Keep in mind, you'll have to replace http://charts.example.com/ with the actual repository URL that hosts your Helm chart.

    This program will provision both the GKE cluster and the nginx reverse proxy when you run it with pulumi up. Remember to have your Pulumi and GCP configuration set up beforehand.