Fix: post job can not have files section

- Fix post job, which can not have files section
- Make jobs naming look more like in other Airship projects
- Use git grep in whitespace linter as simplier way to get list of
  files mathing pattern, than find & grep combination

Change-Id: Ie6c82855dd1513d6047160363f2d4606e69673d1

tools/gate/playbooks/zuul-linter.yaml

@@ -15,10 +15,8 @@
 - hosts: primary
   tasks:
     - name: Execute a Whitespace Linter check
-      command: >
-        find .
-        -not -path "*/.git/*"
-        -type f
-        -exec egrep -l " +$" {} \;
+      command: git grep -E -l " +$"
+      args:
+        chdir: "{{ zuul.project.src_dir }}"
       register: result
       failed_when: result.stdout != ""

zuul.d/base.yaml

@@ -15,17 +15,17 @@
 - project:
     check:
       jobs:
-        - porthole-lint
-        - porthole-image-build-mysqlclient-utility
+        - airship-porthole-linter
+        - airship-porthole-images-build-gate-mysqlclient-utility
 
     gate:
       jobs:
-        - porthole-lint
-        - porthole-image-build-mysqlclient-utility
+        - airship-porthole-linter
+        - airship-porthole-images-build-gate-mysqlclient-utility
 
     post:
       jobs:
-        - porthole-image-upload-mysqlclient-utility
+        - airship-porthole-images-publish-mysqlclient-utility
 
 - nodeset:
     name: airship-porthole-single-node
@@ -34,7 +34,7 @@
         label: ubuntu-xenial
 
 - job:
-    name: porthole-images
+    name: airship-porthole-images
     abstract: true
     timeout: 1800
     post-timeout: 1800
@@ -50,7 +50,7 @@
           - latest
 
 - job:
-    name: porthole-lint
+    name: airship-porthole-linter
     description: |
       Lints files for trailing whitespace
     run: tools/gate/playbooks/zuul-linter.yaml

zuul.d/mysqlclient-utility.yaml

@@ -13,12 +13,12 @@
 # limitations under the License.
 
 - job:
-    name: porthole-image-build-mysqlclient-utility
-    parent: &parent porthole-images
+    name: airship-porthole-images-build-gate-mysqlclient-utility
+    parent: &parent airship-porthole-images
     vars:
       image_name: &image_name mysqlclient-utility
       distro_suffix: &distro_suffix ubuntu_xenial
-    files: &mysqlclient_files
+    files:
       - ^Dockerfiles/mysqlclient-utility/.*$
       - ^install_mysqlclient_utility.sh$
       - ^mysqlclient-utility/.*$
@@ -27,7 +27,7 @@
       - ^zuul.d/.*$
 
 - job:
-    name: porthole-image-upload-mysqlclient-utility
+    name: airship-porthole-images-publish-mysqlclient-utility
     parent: *parent
     secrets:
       - name: quay_credentials
@@ -40,4 +40,3 @@
       tags:
         dynamic:
           commit: true
-    files: *mysqlclient_files