Generate CI images with oci-build-task

Update CI to generate images using an `oci-build-task` since
the `registry-image` resource cannot perform actual image builds.

See gh-24197

ci/parameters.yml

@@ -8,7 +8,6 @@ artifactory-server: "https://repo.spring.io"
 branch: "2.2.x"
 milestone: "2.2.x"
 build-name: "spring-boot"
-ci-image-name: "spring-boot-ci-22x"
 concourse-url: "https://ci.spring.io"
 bintray-subject: "spring"
 bintray-repo: "jars"

ci/pipeline.yml

@@ -4,7 +4,7 @@ anchors:
     username: ((github-username))
     password: ((github-password))
     branch: ((branch))
-  docker-resource-source: &docker-resource-source
+  registry-image-resource-source: &registry-image-resource-source
     username: ((docker-hub-username))
     password: ((docker-hub-password))
     tag: ((milestone))
@@ -142,20 +142,20 @@ resources:
   type: registry-image
   icon: docker
   source:
-    <<: *docker-resource-source
-    repository: ((docker-hub-organization))/((ci-image-name))
+    <<: *registry-image-resource-source
+    repository: ((docker-hub-organization))/spring-boot-ci
 - name: ci-image-jdk11
   type: registry-image
   icon: docker
   source:
-    <<: *docker-resource-source
-    repository: ((docker-hub-organization))/((ci-image-name))-jdk11
+    <<: *registry-image-resource-source
+    repository: ((docker-hub-organization))/spring-boot-ci-jdk11
 - name: ci-image-jdk15
   type: registry-image
   icon: docker
   source:
-    <<: *docker-resource-source
-    repository: ((docker-hub-organization))/((ci-image-name))-jdk15
+    <<: *registry-image-resource-source
+    repository: ((docker-hub-organization))/spring-boot-ci-jdk15
 - name: artifactory-repo
   type: artifactory-resource
   icon: package-variant
@@ -209,19 +209,32 @@ jobs:
   plan:
   - get: ci-images-git-repo
     trigger: true
+  - in_parallel:
+    - task: build-ci-image
+      privileged: true
+      file: git-repo/ci/tasks/build-ci-image.yml
+      params:
+        ci-image-name: ci-image
+    - task: build-ci-image-jdk11
+      privileged: true
+      file: git-repo/ci/tasks/build-ci-image.yml
+      params:
+        ci-image-name: ci-image-jdk11
+    - task: build-ci-image-jdk15
+      privileged: true
+      file: git-repo/ci/tasks/build-ci-image.yml
+      params:
+        ci-image-name: ci-image-jdk15
   - in_parallel:
     - put: ci-image
       params:
-        build: ci-images-git-repo/ci/images
-        dockerfile: ci-images-git-repo/ci/images/ci-image/Dockerfile
+        image: ci-image/image.tar
     - put: ci-image-jdk11
       params:
-        build: ci-images-git-repo/ci/images
-        dockerfile: ci-images-git-repo/ci/images/ci-image-jdk11/Dockerfile
+        image: ci-image-jdk11/image.tar
     - put: ci-image-jdk15
       params:
-        build: ci-images-git-repo/ci/images
-        dockerfile: ci-images-git-repo/ci/images/ci-image-jdk15/Dockerfile
+        image: ci-image-jdk15/image.tar
 - name: detect-jdk-updates
   plan:
   - get: git-repo

ci/tasks/build-ci-image.yml

@@ -0,0 +1,17 @@
+---
+platform: linux
+image_resource:
+  type: registry-image
+  source:
+    repository: vito/oci-build-task
+inputs:
+- name: ci-images-git-repo
+outputs:
+- name: ((ci-image-name))
+caches:
+- path: ci-image-cache
+params:
+  CONTEXT: ci-images-git-repo/ci/images
+  DOCKERFILE: ((ci-image-name))/Dockerfile
+run:
+  path: build