Merge "gerrit: get files from bazel build dir"

docker/gerrit/bazel/Dockerfile

@@ -17,15 +17,10 @@
 
 FROM docker.io/opendevorg/gerrit-base as gerrit
 
-COPY release.war /var/gerrit/bin/gerrit.war
+COPY bazel-bin/release.war /var/gerrit/bin/gerrit.war
 
 # Install plugins
 RUN mkdir /var/gerrit/plugins && \
   unzip -jo /var/gerrit/bin/gerrit.war WEB-INF/plugins/* -d /var/gerrit/plugins
 
 COPY opendevtheme.html /var/gerrit/plugins/opendevtheme.html
-
-FROM gerrit as gerrit-2
-
-# Only Gerrit 2.14, 2.15, and 2.16 need this COPY
-COPY javamelody-deps_deploy.jar /var/gerrit/lib/javamelody-deps_deploy.jar

playbooks/zuul/gerrit/run.yaml

@@ -12,6 +12,28 @@
       vars:
         zuul_work_dir: /home/zuul/src/gerrit.googlesource.com/gerrit
 
+    # Bazel makes "convenience symlinks" [1] starting with bazel-* to
+    # the actual build output.  The problem is that we want to use the
+    # source tree as the context/build dir for our Docker container,
+    # and Docker refuses to follow symlinks for COPY commands; i.e. we
+    # can't copy stuff from the build output into the container.
+    # Therefore break the bazel-bin link and move to the top level so
+    # we can copy the built bits (jars, plugins, etc) into the
+    # container easily.
+    #
+    # [1] https://docs.bazel.build/versions/master/user-manual.html
+    - name: Make bazel-bin docker friendly
+      shell:
+        cmd: |
+          if [ ! -L bazel-bin ]; then
+            echo "bazel-bin not a symlink?"
+            exit 1
+          fi
+          target=$(readlink bazel-bin)
+          rm bazel-bin
+          mv $target bazel-bin
+        chdir:  /home/zuul/src/gerrit.googlesource.com/gerrit
+
     - name: Install OpenDev theme plugin
       copy:
         src: opendevtheme.html

roles/bazelisk-build/tasks/main.yaml

@@ -3,13 +3,11 @@
     set -x
     java -fullversion
     {{ bazelisk_executable }} version
-    {{ bazelisk_executable }} build --spawn_strategy=standalone --genrule_strategy=standalone {{ bazelisk_targets|join(' ') }}
+    {{ bazelisk_executable }} \
-    if [[ -f bazel-bin/plugins/javamelody/javamelody-deps_deploy.jar ]] ; then
+      build \
-        # versions 2.14, 2.15, and 2.16 generate this file
+      --spawn_strategy=standalone \
-        cp bazel-bin/plugins/javamelody/javamelody-deps_deploy.jar javamelody-deps_deploy.jar
+      --genrule_strategy=standalone \
-    fi
+      {{ bazelisk_targets|join(' ') }}
-    # release.war is a symlink. We want an actual file so that docker copy works right.
-    cp bazel-bin/release.war release.war
   args:
     executable: /bin/bash
     chdir: "{{ zuul_work_dir }}"