Add golint as a non-voting gate

Change-Id: I9850528a720ff517a3f400553fa8ab66bf4b1b3b
Closes: #253

playbooks/airship-airshipctl-golint.yaml

@@ -0,0 +1,20 @@
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+- hosts: primary
+  tasks:
+    - name: Run Auxiliary Linter
+      block:
+        - name: "make docker-image-golint"
+          make:
+            chdir: "{{ zuul.project.src_dir }}"
+            target: docker-image-golint