[OPENJDK-2735] Jlink Stage 3 template

templates/multistage-dockerfile-buildconfig.yaml

@@ -0,0 +1,106 @@
+---
+apiVersion: template.openshift.io/v1
+kind: Template
+metadata:
+  annotations:
+    description: Template to produce a light weight imagestream and buildconfig for a multistage build
+  name: multistage-build-template
+objects:
+##############################################################################
+# the INPUT ImageStream (from phase 2)
+- apiVersion: image.openshift.io/v1
+  kind: ImageStream
+  metadata:
+    name: intermediate
+  spec:
+    lookupPolicy:
+      local: true
+    tags:
+    - from:
+        kind: DockerImage
+        name: quay.io/jdowland/jlink:ubi9-jlinked-image
+      name: latest
+      referencePolicy:
+        type: Local
+##############################################################################
+# the ubi-micro ImageStream
+- apiVersion: image.openshift.io/v1
+  kind: ImageStream
+  metadata:
+    name: ubimicro
+  spec:
+    lookupPolicy:
+      local: true
+    tags:
+    - from:
+        kind: DockerImage
+        name: registry.access.redhat.com/ubi9/ubi-micro
+      name: latest
+      referencePolicy:
+        type: Local
+##############################################################################
+# the OUTPUT ImageStream
+- apiVersion: image.openshift.io/v1
+  kind: ImageStream
+  metadata:
+    name: lightweight-image
+  spec:
+    lookupPolicy:
+      local: false
+##############################################################################
+- apiVersion: build.openshift.io/v1
+  kind: BuildConfig
+  metadata: 
+    name: multistage-buildconfig
+  spec:
+    source:
+      images:
+      - from:
+          kind: ImageStreamTag
+          name: intermediate:latest
+        paths:
+        - sourcePath:     /mnt/jrootfs
+          destinationDir: jrootfs
+        - sourcePath:     /deployments
+          destinationDir: deployments
+        - sourcePath:     /tmp/jre/.
+          destinationDir: customJVM
+        - sourcePath:     /opt/jboss/container/.
+          destinationDir: runScripts
+      type: Dockerfile
+      dockerfile: |
+        FROM -
+        ARG JAVA_HOME=/usr/lib/jvm/java
+
+        COPY jrootfs/*    /
+        COPY deployments /
+        COPY customJVM   ${JAVA_HOME}
+        COPY runScripts  /opt/jboss/container/
+        # these are in the micro image
+        RUN rm -rf /var/lib/dnf /var/lib/rpm
+
+        ENV JAVA_HOME="${JAVA_HOME}" PATH="${JAVA_HOME}/bin:$PATH"
+        USER 185
+        CMD /opt/jboss/container/java/run/run-java.sh
+    strategy:
+      type: Docker
+      dockerStrategy:
+        from:
+          kind: ImageStreamTag
+          name: ubimicro:latest
+    output:
+      to:
+        kind: ImageStreamTag
+        name: lightweight-image:latest  # Tag for the final output image
+    triggers:
+      - type: ConfigChange
+      - type: ImageChange
+        imageChange:
+          from:
+            kind: ImageStreamTag
+            name: intermediate:latest  # ImageStreamTag for phase-2 output
+      - type: ImageChange
+        imageChange:
+          from:
+            kind: ImageStreamTag
+            name: ubimicro:latest  # ImageStreamTag for registry.access.redhat.com/ubi9/ubi-micro