Switched to node builder and updated to Alpine 3.12

Dockerfile

@@ -1,5 +1,5 @@
 # Base on latest (edge) alpine image
-FROM harbor.ervine.dev/library/x86_64/alpine/alpine-3.11
+FROM harbor.ervine.dev/library/x86_64/alpine/alpine-3.12
 
 MAINTAINER “Jonathan Ervine” <docker@ervine.org>
 
@@ -10,13 +10,12 @@ ENV LANG='en_US.UTF-8' \
 
 ADD requirements.txt /tmp/requirements.txt
 
-RUN apk update 
-RUN apk -U upgrade 
-RUN apk -U add python3 gcc python3-dev musl-dev libffi-dev 
-RUN adduser -D python 
-RUN pip3 install -r /tmp/requirements.txt
-
-RUN rm -rf /tmp/src && rm -rf /var/cache/apk/* && rm -f /tmp/requirements.txt
+RUN apk update && \
+    apk -U upgrade --ignore alpine-baselayout && \
+    apk -U add python3 gcc python3-dev musl-dev libffi-dev && \ 
+    adduser -D python && \
+    pip3 install -r /tmp/requirements.txt && \
+    rm -rf /tmp/src && rm -rf /var/cache/apk/* && rm -f /tmp/requirements.txt
 
 EXPOSE 3000
 

Jenkinsfile

@@ -1,17 +1,34 @@
-node("docker-node") {
-    docker.withRegistry('https://harbor.ervine.dev', 'jenkins-to-harbor') {
-    
-        git branch: "3.11.6", url: "ssh://git@git.ervine.org/jonny/x86_64-alpine-python", credentialsId: 'jenkins-to-git'
-    
-        sh "git rev-parse HEAD > .git/commit-id"
-        def commit_id = readFile('.git/commit-id').trim()
-        println commit_id
-    
-        stage "build"
-        def app = docker.build "library/x86_64/alpine/python"
-    
-        stage "publish"
-        app.push("${env.BUILD_NUMBER}")
-        app.push("latest")
+podTemplate(yaml: """
+kind: Pod
+spec:
+  containers:
+  - name: kaniko
+    image: gcr.io/kaniko-project/executor:debug-539ddefcae3fd6b411a95982a830d987f4214251
+    imagePullPolicy: Always
+    command:
+    - /busybox/cat
+    tty: true
+    volumeMounts:
+      - name: jenkins-docker-cfg
+        mountPath: /kaniko/.docker
+  volumes:
+  - name: jenkins-docker-cfg
+    projected:
+      sources:
+      - secret:
+          name: regcred
+          items:
+            - key: .dockerconfigjson
+              path: config.json
+"""
+  ) {
+
+  node(POD_LABEL) {
+    stage('Build with Kaniko') {
+      git url: 'ssh://git@git.ervine.org/jonny/x86_64-alpine.git', credentialsId: 'jenkins-to-git'
+      container('kaniko') {
+        sh '/kaniko/executor -f `pwd`/Dockerfile -c `pwd` --cache=true --destination=harbor.ervine.dev/library/x86_64/alpine/python:3.12.0 --destination=harbor.ervine.dev/library/x86_64/alpine/python:3.12'
+      }
     }
+  }
 }