Move Jetty as discussed offline and add it to cloudbuild.yaml

cloudbuild.yaml

@@ -9,8 +9,14 @@ steps:
 - name: gcr.io/cloud-builders/docker
   args: ['tag', 'bazel/java:java8', 'gcr.io/$PROJECT_ID/java:latest']
 
+- name: gcr.io/cloud-builders/bazel
+  args: ['run', '//java/jetty']
+- name: gcr.io/cloud-builders/docker
+  args: ['tag', 'bazel/java/jetty:jetty', 'gcr.io/$PROJECT_ID/java/jetty:latest']
+
 # The resulting images to push to GCR.
 images: [
   'gcr.io/$PROJECT_ID/base:latest',
   'gcr.io/$PROJECT_ID/java:latest',
+  'gcr.io/$PROJECT_ID/java/jetty:latest',
 ]

java/BUILD

@@ -16,12 +16,3 @@ docker_build(
         # cmd = ["/path/to/deploy.jar", "--option1", ...]
     ],
 )
-
-docker_build(
-    name = "jetty",
-    base = ":java8",
-    cmd = ["/jetty/start.jar"],
-    tars = ["@jetty//:tar"],
-    workdir = "/jetty",
-    # We expect users to add their WAR under /jetty/webapps.
-)

java/jetty/BUILD

@@ -0,0 +1,12 @@
+package(default_visibility = ["//visibility:public"])
+
+load("@io_bazel_rules_docker//docker:docker.bzl", "docker_build")
+
+docker_build(
+    name = "jetty",
+    base = "//java:java8",
+    cmd = ["/jetty/start.jar"],
+    tars = ["@jetty//:tar"],
+    workdir = "/jetty",
+    # We expect users to add their WAR under /jetty/webapps.
+)