multiarch

Jenkinsfile

@@ -12,7 +12,7 @@
  *  EXERCISE_FOLDERS has the image name and corresponding build folder
 **/
 
-TARGET_BRANCH = '202310'
+TARGET_BRANCH = '202310-multiarch'
 
 EXERCISE_FOLDERS = [
     "base":       "base",
@@ -22,11 +22,12 @@ EXERCISE_FOLDERS = [
 ]
 
 pipeline {
-    agent any
+    agent { node { label 'docker-multi-arch' } }
     environment {
         maintainer = "t"
         imagename = 'g'
         tag = 'l'
+        DOCKERHUBPW=credentials('tieradmin-dockerhub-pw')
     }
     stages {
         stage('Setting build context') {
@@ -70,22 +71,32 @@ pipeline {
         stage('Build exerciseSets') {
             steps {
                 script {
-                    docker.withRegistry('https://registry.hub.docker.com/',   "dockerhub-${maintainer}") {
-                        // def tagSet = generateTagSet()
-                        // def builds = build(tagSet)
 
                         if(env.BRANCH_NAME == TARGET_BRANCH) {
                             //builds.each{ k, v -> echo ("push ${k}") } //for local testing
                             // builds.each{ k, v -> v.push(k) } <- not used anymore
 
+                            // the following command needs to be run first on a new node, but not after that
+                            // sh 'docker buildx create --use --name multiarch --append'
                             EXERCISE_FOLDERS.each { exercise, folder ->
-                                def build = docker.build("${maintainer}/${imagename}:${exercise}-${tag}", "--no-cache --pull --build-arg VERSION_TAG=${tag} ${folder}")
-                                build.push("${exercise}-${tag}")
+                                // old non multi-arch way
+                                // def build = docker.build("${maintainer}/${imagename}:${exercise}-${tag}", "--no-cache --pull --build-arg VERSION_TAG=${tag} ${folder}")
+                                // build.push("${exercise}-${tag}")
+
+                                // switch to buildx, which is not supported by the jenkins docker plugin
+                                sh 'docker buildx inspect --bootstrap'
+                                sh 'docker buildx ls'
+                                sh 'docker login -u tieradmin -p $DOCKERHUBPW'
+                                sh 'docker buildx inspect --bootstrap'
+                                sh 'docker buildx ls'
+                                sh "docker buildx build --platform linux/amd64 -t ${imagename} --build-arg VERSION_TAG=${tag} --load ${folder}"
+                                sh "docker buildx build --platform linux/arm64 -t ${imagename}:arm64 --build-arg VERSION_TAG=${tag} --load ${folder}"
+                                echo "Pushing image ${maintainer}/${imagename}:${exercise}-${tag} to dockerhub..."
+                                sh "docker buildx build --push --platform linux/arm64,linux/amd64 -t ${maintainer}/${imagename}:${exercise}-${tag} --build-arg VERSION_TAG=${tag} ${folder}"
                             }
                         } else {
                             echo "not building images, since the SCM branch is not ${TARGET_BRANCH}"
                         }
-                    }
                 }
             }
         }