Attempt to fix oci-build-task config

See gh-24197

Author: philwebb

ci/pipeline.yml

@@ -212,18 +212,18 @@ jobs:
   - in_parallel:
     - task: build-ci-image
       privileged: true
-      file: git-repo/ci/tasks/build-ci-image.yml
-      params:
+      file: ci-images-git-repo/ci/tasks/build-ci-image.yml
+      vars:
         ci-image-name: ci-image
     - task: build-ci-image-jdk11
       privileged: true
-      file: git-repo/ci/tasks/build-ci-image.yml
-      params:
+      file: ci-images-git-repo/ci/tasks/build-ci-image.yml
+      vars:
         ci-image-name: ci-image-jdk11
     - task: build-ci-image-jdk15
       privileged: true
-      file: git-repo/ci/tasks/build-ci-image.yml
-      params:
+      file: ci-images-git-repo/ci/tasks/build-ci-image.yml
+      vars:
         ci-image-name: ci-image-jdk15
   - in_parallel:
     - put: ci-image

ci/tasks/build-ci-image.yml

@@ -12,6 +12,6 @@ caches:
 - path: ci-image-cache
 params:
   CONTEXT: ci-images-git-repo/ci/images
-  DOCKERFILE: ((ci-image-name))/Dockerfile
+  DOCKERFILE: ci-images-git-repo/ci/images/((ci-image-name))/Dockerfile
 run:
-  path: build
+  path: build