1. Using gcp container with kms

    TypeScript

    To create a Google Kubernetes Engine (GKE) cluster on Google Cloud Platform (GCP) and secure it with Google Cloud KMS (Key Management Service), you would generally need to perform a couple of steps. The Key Management Service is used to create and manage cryptographic keys which can be used to protect data.

    First, you would set up a GCP Key Management Service key ring and a cryptographic key. These keys can be used to encrypt Kubernetes Secrets in the GKE cluster. Then you create the GKE cluster itself and configure it to use the KMS key for encrypting the secrets stored in Etcd.

    Below is a Pulumi TypeScript program that demonstrates how to accomplish this. The program includes comments explaining each part of the code.

    import * as gcp from '@pulumi/gcp'; import * as pulumi from '@pulumi/pulumi'; // Create a GCP key ring, which will hold our cryptographic keys const keyRing = new gcp.kms.KeyRing('my-key-ring', { location: 'global', }); // Create a cryptographic key for encrypting Kubernetes Secrets const cryptoKey = new gcp.kms.CryptoKey('my-crypto-key', { keyRing: keyRing.id, rotationPeriod: "100000s", // Set the rotation period for the key }); // Create a Kubernetes Engine cluster const cluster = new gcp.container.Cluster('my-gke-cluster', { // We will use the default node pool for simplicity in this example initialNodeCount: 3, // Location can be a zone or a region; refer to the GCP documentation for your preferred setup location: 'us-central1', // Here, we configure the cluster with application-layer secrets encryption using // the crypto key we created earlier by specifying the key name for 'databaseEncryption' databaseEncryption: { state: 'ENCRYPTED', // Tells GKE to encrypt secrets at the application layer keyName: cryptoKey.id, // Reference the key created by Pulumi earlier }, // The following are additional optional settings for a GKE cluster: // - network: provide the name of the network to which the cluster is connected // - subnetwork: specify the subnetwork for the cluster // For simplicity, these settings will use GCP's default network and subnetwork for the region. }); // Output the cluster name and Crypto Key export const clusterName = cluster.name; export const cryptoKeyName = cryptoKey.selfLink;

    This program creates a GCP Key Ring and Crypto Key using the @pulumi/gcp package, which are prerequisites for enabling application-layer secret encryption in GKE. We then define a GKE cluster, specifying the databaseEncryption property with the Crypto Key.

    When you run this code with Pulumi, it will automatically provision the required resources in the correct order, and it will output the name of the GKE cluster and the link to the Crypto Key. You can use these exports to access your cluster and Crypto Key in GCP.

    To execute this program, you would need to have Pulumi and GCP CLI configured with the appropriate credentials and default project setup on your machine. You would save this TypeScript code in a file named index.ts, initialize a new Pulumi project, and then run pulumi up to create the resources.

    Remember to review the service-specific documentation and pricing to ensure that you configure the cluster according to your organization’s requirements and budget. Additionally, consider enabling logging and monitoring for the cluster to help with debugging and optimization.


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