Migrate jenkins to use imagetest_harness_k3s for tests (#2499)

Signed-off-by: Jamon <[email protected]>

images/jenkins/tests/controller/main.tf

@@ -0,0 +1,47 @@
+// default values - these get overridden when the resource is called
+variable "values" {
+  type = any
+  default = {
+    namespace        = "jenkins"
+    fullnameOverride = "jenkins"
+    nameOverride     = "jenkins"
+    create_namespace = true
+
+    controller = {
+      javaOpts    = ""
+      jenkinsOpts = ""
+      admin = {
+        createSecret = false
+      }
+      installPlugins = false
+      sidecars = {
+        configAutoReload = {
+          enabled = false
+        }
+      }
+      image = {
+        registry   = "cgr.dev"
+        repository = "chainguard/jenkins"
+        tag        = "latest"
+      }
+    }
+  }
+}
+
+module "helm" {
+  source = "../../../../tflib/imagetest/helm"
+
+  namespace = "jenkins"
+  chart     = "jenkins"
+  repo      = "https://charts.jenkins.io"
+
+  values = var.values
+}
+
+output "install_cmd" {
+  value = module.helm.install_cmd
+}
+
+output "release_name" {
+  value = module.helm.release_name
+}

images/jenkins/tests/hello-world.sh

@@ -0,0 +1,34 @@
+#!/bin/sh
+
+# set -euo pipefail
+
+apk add curl openjdk-21-jre-base
+
+export JAVA_HOME=/usr/lib/jvm/java-21-openjdk/
+
+kubectl port-forward -n jenkins svc/jenkins 8080:8080&
+sleep 5 # wait for port-forward to settle
+curl -s -O "http://localhost:8080/jnlpJars/jenkins-cli.jar"
+mv jenkins-cli.jar /tmp/
+
+# define a job
+cat /tests/hello-world.xml | \
+	$JAVA_HOME/bin/java \
+	-jar /tmp/jenkins-cli.jar \
+	-s http://127.0.0.1:8080 \
+	create-job "Hello world"
+
+sleep 5 # wait for port-forward to settle
+
+# run the job
+$JAVA_HOME/bin/java \
+	-jar /tmp/jenkins-cli.jar \
+	-s http://127.0.0.1:8080 build "Hello world"
+
+sleep 5 # wait for port-forward to settle
+
+# check job success
+STATUS=`$JAVA_HOME/bin/java \
+	-jar /tmp/jenkins-cli.jar \
+	-s http://127.0.0.1:8080 console "Hello world" |grep 'Finished: SUCCESS'`
+

images/jenkins/tests/hello-world.xml

@@ -0,0 +1,20 @@
+<project>
+  <description/>
+  <keepDependencies>false</keepDependencies>
+  <properties/>
+  <scm class="hudson.scm.NullSCM"/>
+  <canRoam>true</canRoam>
+  <disabled>false</disabled>
+  <blockBuildWhenDownstreamBuilding>false</blockBuildWhenDownstreamBuilding>
+  <blockBuildWhenUpstreamBuilding>false</blockBuildWhenUpstreamBuilding>
+  <triggers/>
+  <concurrentBuild>false</concurrentBuild>
+  <builders>
+    <hudson.tasks.Shell>
+      <command>echo "Hello world!"</command>
+      <configuredLocalRules/>
+    </hudson.tasks.Shell>
+  </builders>
+  <publishers/>
+  <buildWrappers/>
+</project>

images/jenkins/tests/main.tf

@@ -1,19 +1,78 @@
 terraform {
   required_providers {
-    oci = { source = "chainguard-dev/oci" }
+    oci       = { source = "chainguard-dev/oci" }
+    imagetest = { source = "chainguard-dev/imagetest" }
   }
 }
 
+locals {
+  namespace = "jenkins"
+}
+
 variable "digest" {
   description = "The image digest to run tests over."
 }
 
-data "oci_exec_test" "version" {
-  digest = var.digest
-  script = "docker run --rm $IMAGE_NAME --version"
+data "oci_string" "ref" { input = var.digest }
+
+data "imagetest_inventory" "this" {}
+
+resource "imagetest_harness_k3s" "this" {
+  name      = "jenkins"
+  inventory = data.imagetest_inventory.this
+
+  sandbox = {
+    mounts = [
+      {
+        source      = path.module
+        destination = "/tests"
+      }
+    ]
+  }
 }
 
-data "oci_exec_test" "run-tests" {
-  digest = var.digest
-  script = "${path.module}/run-tests.sh"
+module "helm_controller" {
+  source = "./controller"
+  values = {
+    namespace        = local.namespace
+    fullnameOverride = local.namespace
+    nameOverride     = local.namespace
+    create_namespace = true
+
+    controller = {
+      javaOpts       = ""
+      jenkinsOpts    = ""
+      installPlugins = false
+      admin = {
+        createSecret = false
+      }
+      sidecars = {
+        configAutoReload = {
+          enabled = false
+        }
+      }
+      image = {
+        registry   = data.oci_string.ref.registry
+        repository = data.oci_string.ref.repo
+        tag        = data.oci_string.ref.pseudo_tag
+      }
+    }
+  }
 }
+
+resource "imagetest_feature" "this" {
+  harness     = imagetest_harness_k3s.this
+  name        = "jenkins"
+  description = "Test jenkins functionality"
+
+  steps = [
+    {
+      name = "Install controller",
+      cmd  = module.helm_controller.install_cmd
+    },
+    {
+      name = "Test running a job",
+      cmd  = "/tests/hello-world.sh"
+    },
+  ]
+}