Allow proxy and container repository customization

Modify following roles to accept the proxy and env
variables from zuul jobs and project manifest so they
can be overwritten to run them on downstream zuul

- airshipctl-build-images
- airshipctl-publish-images

Change-Id: Ied06e60507f125c60ca7b9d47331e967fd69bf14

roles/airshipctl-build-images/tasks/main.yaml

@@ -14,6 +14,10 @@
   make:
     chdir: "{{ zuul.project.src_dir }}"
     target: images
+    params:
+      PROXY: "{{ proxy.http }}"
+      NO_PROXY: "{{ proxy.noproxy }}"
+      USE_PROXY: "{{ proxy.enabled | lower }}"
 
 - name: Verify Image Exists
   shell: docker image inspect "$(make print-docker-image-tag)"

roles/airshipctl-publish-images/tasks/main.yaml

@@ -34,6 +34,10 @@
         params:
           DOCKER_IMAGE_TAG: latest
           PUBLISH: "true"
+          PROXY: "{{ proxy.http }}"
+          NO_PROXY: "{{ proxy.noproxy }}"
+          USE_PROXY: "{{ proxy.enabled | lower }}"
+          DOCKER_REGISTRY: "{{ image_repo }}"
         target: images
 
     - name: Push Image with Commit Tag
@@ -42,4 +46,8 @@
         params:
           DOCKER_IMAGE_TAG: "{{ zuul.newrev }}"
           PUBLISH: "true"
+          PROXY: "{{ proxy.http }}"
+          NO_PROXY: "{{ proxy.noproxy }}"
+          USE_PROXY: "{{ proxy.enabled | lower }}"
+          DOCKER_REGISTRY: "{{ image_repo }}"
         target: images

zuul.d/jobs.yaml

@@ -198,4 +198,3 @@
         pass-to-parent: true
     vars:
       image: quay.io/airshipit/airshipctl
-      image_repo: https://quay.io/api/v1/

zuul.d/projects.yaml

@@ -13,6 +13,12 @@
 - project:
     vars:
       sphinx_build_dir: docs/build
+      proxy:
+        enabled: false
+        http: ""
+        https: ""
+        noproxy: ""
+      image_repo: https://quay.io/api/v1/
     check:
       jobs:
         - openstack-tox-docs: &docs