system-config-run-review : add review priority and backport labels

Adding these two labels to the test project gives us better coverage
of the copyCondition and submit-requirment setup of projects.

Review-Priority is voting, so has a blocking s-r.  Backport-Candidate
is an example of a non-voting (or "trigger" as gerrit calls it) label,
which should show up in a different part of the UI.

This should help us better evaluate any changes in this area,
particularly UI changes via our test screenshots.

Change-Id: Ib42fa61d9805d1946da7307f0969cdaf6a937514

playbooks/zuul/bootstrap-test-review.yaml

@@ -160,7 +160,63 @@
         password: secret
         status_code: 201
 
-    - name: Create initial commit and change in testproject
+    - name: Setup initial test project
+      shell:
+        executable: /bin/bash
+        chdir: "{{ project_tmp.stdout }}"
+        cmd: |
+            set -xe
+
+            git init testproject.config
+            pushd testproject.config
+            git remote add origin http://admin:secret@localhost:8081/a/y/testproject
+            git pull origin refs/meta/config
+
+            echo "{{ group_json.id }}	CI-tools" >> groups # noqa 203
+
+            cat >project.config <<EOF
+            [access]
+            inheritFrom = All-Projects
+
+            [submit]
+            action = inherit
+
+            [access "refs/heads/*"]
+            label-Review-Priority = -1..+2 group CI-tools
+            label-Backport-Candidate = -1..+1 group CI-tools
+
+            [label "Review-Priority"]
+            copyCondition = changekind:NO_CODE_CHANGE OR changekind:TRIVIAL_REBASE OR is:MAX OR is:MIN
+            defaultValue = 0
+            function = NoBlock
+            value = -1 Branch Freeze
+            value = 0 No Priority
+            value = +1 Important Change
+            value = +2 Urgent Change
+
+            [label "Backport-Candidate"]
+            copyCondition = changekind:NO_CODE_CHANGE OR changekind:TRIVIAL_REBASE OR is:MAX OR is:MIN
+            defaultValue = 0
+            function = NoBlock
+            value = -1 Not a backport candidate
+            value = 0 Backport review needed
+            value = +1 Should backport
+
+            [submit-requirement "Review-Priority"]
+            description = The review priority
+            submittableIf = -label:Review-Priority=MIN
+
+            [submit-requirement "Backport-Candidate"]
+            applicableIf = is:false
+            description = Backport candidate status
+            submittableIf = is:true
+            EOF
+
+            git add project.config groups
+            git commit -m 'Updated project config'
+            git push origin HEAD:refs/meta/config
+
+    - name: Create initial commit and changes in testproject
       shell:
         executable: /bin/sh
         chdir: "{{ project_tmp.stdout }}"
@@ -205,7 +261,7 @@
 
     - name: Post a sample failure review
       uri:
-        url: 'http://localhost:8081/a/changes/{{ item }}/revisions/1/review'
+        url: 'http://localhost:8081/a/changes/{{ item.id }}/revisions/1/review'
         method: POST
         user: zuul
         password: secret
@@ -213,7 +269,9 @@
         body:
           tag: 'autogenerated:zuul:check'
           labels:
-            'Verified': -2
+            'Verified': '{{ item.verified }}'
+            'Review-Priority': '{{ item.priority }}'
+            'Backport-Candidate': '{{ item.backport }}'
           message: |
             Build failed (check pipeline).  For information on how to proceed, see
             https://docs.opendev.org/opendev/infra-manual/latest/developers.html#automated-testing
@@ -232,9 +290,18 @@
             - test-disk-full https://zuul.opendev.org/t/openstack/build/0897fafc9743580794652fc49e3c9baf : DISK_FULL in {{ range(1, 59) | random }}m 48s
             - test-error https://zuul.opendev.org/t/openstack/build/0897bedc9743580794652fc49e3c1234 : ERROR This is an error message in {{ range(1, 59) | random }}m 32s
       loop:
-        - 1
+        - id: '1'
-        - 2
+          verified: '-2'
-        - 3
+          priority: '-1'
+          backport: '-1'
+        - id: '2'
+          verified: '+1'
+          priority: '+1'
+          backport: '0'
+        - id: '3'
+          verified: '+2'
+          priority: '+2'
+          backport: '+1'
 
     - name: Post a sample good review in another pipeline
       uri: