pulumi-wordpress.ts

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

let config = new pulumi.Config();
const k8sNamespacePrefix = config.require('k8sNamespacePrefix')

// https://github.com/pulumi/pulumi-kubernetes/issues/217#issuecomment-459105809
const addNamespaceTransformation = (namespaceName: string) => (o: any) => {
	if (o !== undefined) {
		if (o.metadata !== undefined) {
			o.metadata.namespace = namespaceName;
		} else {
			o.metadata = {namespace: namespaceName}
		}
	}
}

export const storageClass = new k8s.storage.v1.StorageClass(`${k8sNamespacePrefix}-gp2-zone-a`, {
	provisioner: "kubernetes.io/aws-ebs",
	volumeBindingMode: "Immediate",
	parameters: {
		type: "gp2",
	},
	allowedTopologies: [{
		matchLabelExpressions: [{
			key: "failure-domain.beta.kubernetes.io/zone",
			values: [
				"us-west-2a",
			],
		}]
	}]
})

export const wordpresses: any[] = []
const numNamespaces = 1
for (const namespaceIndex of (new Array(numNamespaces).fill(0).map((_, index) => index))) {
	const namespaceName = `${k8sNamespacePrefix}-wptest-${namespaceIndex}`
	const namespace = new k8s.core.v1.Namespace(namespaceName, {
		metadata: {
			name: namespaceName
		}
	})
	const wordpressChart = new k8s.helm.v2.Chart(`${namespaceName}-wordpress`, {
		namespace: pulumi.output(namespace).apply(namespace => namespace.metadata.name),
		repo: "stable",
		version: "5.9.0",
		chart: "wordpress",
		values: {
			service: {
				type: "ClusterIP",
			},
			persistence: {
				storageClass: pulumi.output(storageClass).apply(sc => sc.metadata.name),
			},
			mariadb: {
				master: {
					persistence: {
						storageClass: pulumi.output(storageClass).apply(sc => sc.metadata.name),
					}
				}
			}
		},
		transformations: [
			addNamespaceTransformation(namespaceName),
			removePodsWithHooksTransformation()
		]
	});
	wordpresses.push({ namespace, chart: wordpressChart })
}

function removePodsWithHooksTransformation() {
	return (o: any) => {
		if ( ! o) return
		if (o.metadata && o.metadata.annotations && o.metadata.annotations['helm.sh/hook']) {
			console.log('skipping helm hook', o.metadata)
			// transforms in nodejs expects you to mutate input object, not return a new one :/
			// https://github.com/pulumi/pulumi-kubernetes/blob/4b01b5114df3045cecefd2ff3e2f2ed64430e3dd/sdk/nodejs/yaml/yaml.ts#L2214
			for (const key in o) {
				delete o[key]
			}
			Object.assign(o, {
				kind: "List",
				apiVersion: "v1",
				metadata: {},
				items: [],
			})
			return
		}
		return o
	}
}