Do not use "latest" GKE engine in examples. (pulumi#343)

Using a fuzzy version as an input to `nodeVersion` can cause spurious diffs, as the state returned by the provider will contain a specific version for this field. Instead, fetch the latest version from GKE using `getEngineVersions` and use that.
ctmcisco · Jul 10, 2019 · c9c06e8 · c9c06e8
1 parent 15c386c
commit c9c06e8
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Showing 4 changed files with 20 additions and 9 deletions.
diff --git a/gcp-py-gke/__main__.py b/gcp-py-gke/__main__.py
@@ -1,6 +1,6 @@
 from pulumi import Config, export, get_project, get_stack, Output, ResourceOptions
 from pulumi_gcp.config import project, zone
-from pulumi_gcp.container import Cluster
+from pulumi_gcp.container import Cluster, get_engine_versions
 from pulumi_kubernetes import Provider
 from pulumi_kubernetes.apps.v1 import Deployment
 from pulumi_kubernetes.core.v1 import Service
@@ -19,11 +19,13 @@
 # password is the password for the admin user in the cluster.
 PASSWORD = config.get_secret('password') or RandomString("password", length=20, special=True).result
 
+engine_version = Output.from_input(get_engine_versions()).latest_master_version
+
 # Now, actually create the GKE cluster.
 k8s_cluster = Cluster('gke-cluster',
  initial_node_count=NODE_COUNT,
- node_version='latest',
- min_master_version='latest',
+ node_version=engine_version,
+ min_master_version=engine_version,
  master_auth={ 'username': USERNAME, 'password': PASSWORD },
  node_config={
  'machine_type': NODE_MACHINE_TYPE,

diff --git a/gcp-ts-gke-hello-world/index.ts b/gcp-ts-gke-hello-world/index.ts
@@ -5,11 +5,14 @@ import * as gcp from "@pulumi/gcp";
 
 const name = "helloworld";
 
+// Find the latest engine version.
+const engineVersion = gcp.container.getEngineVersions().then(v => v.latestMasterVersion);
+
 // Create a GKE cluster
 const cluster = new gcp.container.Cluster(name, {
  initialNodeCount: 2,
- minMasterVersion: "latest",
- nodeVersion: "latest",
+ minMasterVersion: engineVersion,
+ nodeVersion: engineVersion,
  nodeConfig: {
  machineType: "n1-standard-1",
  oauthScopes: [

diff --git a/gcp-ts-gke/cluster.ts b/gcp-ts-gke/cluster.ts
@@ -5,11 +5,14 @@ import * as k8s from "@pulumi/kubernetes";
 import * as pulumi from "@pulumi/pulumi";
 import { nodeCount, nodeMachineType, password, username } from "./config";
 
+// Find the latest engine version.
+const engineVersion = gcp.container.getEngineVersions().then(v => v.latestMasterVersion);
+
 // Create the GKE cluster and export it.
 export const k8sCluster = new gcp.container.Cluster("gke-cluster", {
  initialNodeCount: nodeCount,
- nodeVersion: "latest",
- minMasterVersion: "latest",
+ nodeVersion: engineVersion,
+ minMasterVersion: engineVersion,
  masterAuth: { username, password },
  nodeConfig: {
  machineType: nodeMachineType,

diff --git a/gcp-ts-k8s-ruby-on-rails-postgresql/infra/cluster.ts b/gcp-ts-k8s-ruby-on-rails-postgresql/infra/cluster.ts
@@ -5,11 +5,14 @@ import * as k8s from "@pulumi/kubernetes";
 import * as pulumi from "@pulumi/pulumi";
 import { clusterNodeCount, clusterNodeMachineType, clusterPassword, clusterUsername } from "./config";
 
+// Find the latest engine version.
+const engineVersion = gcp.container.getEngineVersions().then(v => v.latestMasterVersion);
+
 // Create the GKE cluster and export it.
 export const cluster = new gcp.container.Cluster("gke-cluster", {
  initialNodeCount: clusterNodeCount,
- nodeVersion: "latest",
- minMasterVersion: "latest",
+ nodeVersion: engineVersion,
+ minMasterVersion: engineVersion,
  masterAuth: { username: clusterUsername, password: clusterPassword },
  nodeConfig: {
  machineType: clusterNodeMachineType,