zuul: port the legacy grenade job

Make it a native Zuul v3 job.
It is a simple variant of the base 'grenade' job where oslo.log
is installed from source instead of pip.
Also use a slightly more common name by dropping the "-devstack"
suffix (all grenade jobs are also devstack jobs).

Change-Id: I2f335358dd467f57a2178df66414bdc634eb6400

.zuul.yaml

@@ -1,17 +1,12 @@
 - job:
-    name: oslo.log-src-grenade-devstack
-    parent: legacy-dsvm-base
+    name: oslo.log-src-grenade
+    parent: grenade
     voting: false
     irrelevant-files:
       - ^(test-|)requirements.txt$
       - ^setup.cfg$
-    post-run: playbooks/legacy/oslo.log-src-grenade-devstack/post.yaml
     required-projects:
-      - openstack/grenade
-      - openstack/devstack-gate
-      - openstack/oslo.log
-    run: playbooks/legacy/oslo.log-src-grenade-devstack/run.yaml
-    timeout: 10800
+      - opendev.org/openstack/oslo.log
 
 - job:
     name: oslo.log-jsonformatter
@@ -44,7 +39,7 @@
 - project:
     check:
       jobs:
-        - oslo.log-src-grenade-devstack
+        - oslo.log-src-grenade
         - oslo.log-jsonformatter
     gate:
       jobs:

playbooks/legacy/oslo.log-src-grenade-devstack/post.yaml

@@ -1,15 +0,0 @@
-- hosts: primary
-  tasks:
-
-    - name: Copy files from {{ ansible_user_dir }}/workspace/ on node
-      synchronize:
-        src: '{{ ansible_user_dir }}/workspace/'
-        dest: '{{ zuul.executor.log_root }}'
-        mode: pull
-        copy_links: true
-        verify_host: true
-        rsync_opts:
-          - --include=/logs/**
-          - --include=*/
-          - --exclude=*
-          - --prune-empty-dirs

playbooks/legacy/oslo.log-src-grenade-devstack/run.yaml

@@ -1,51 +0,0 @@
-- hosts: all
-  name: Autoconverted job legacy-oslo.log-src-grenade-dsvm from old job gate-oslo.log-src-grenade-dsvm-ubuntu-xenial-nv
-  tasks:
-
-    - name: Ensure legacy workspace directory
-      file:
-        path: '{{ ansible_user_dir }}/workspace'
-        state: directory
-
-    - shell:
-        cmd: |
-          set -e
-          set -x
-          cat > clonemap.yaml << EOF
-          clonemap:
-            - name: openstack/devstack-gate
-              dest: devstack-gate
-          EOF
-          /usr/zuul-env/bin/zuul-cloner -m clonemap.yaml --cache-dir /opt/git \
-              https://opendev.org \
-              openstack/devstack-gate
-        executable: /bin/bash
-        chdir: '{{ ansible_user_dir }}/workspace'
-      environment: '{{ zuul | zuul_legacy_vars }}'
-
-    - shell:
-        cmd: |
-          set -e
-          set -x
-          export PROJECTS="openstack/grenade $PROJECTS"
-          export PYTHONUNBUFFERED=true
-          export DEVSTACK_GATE_TEMPEST=1
-          export DEVSTACK_GATE_GRENADE=pullup
-          export DEVSTACK_GATE_USE_PYTHON3=True
-          export BRANCH_OVERRIDE=default
-          if [ "$BRANCH_OVERRIDE" != "default" ] ; then
-              export OVERRIDE_ZUUL_BRANCH=$BRANCH_OVERRIDE
-          fi
-          export DEVSTACK_PROJECT_FROM_GIT=$ZUUL_SHORT_PROJECT_NAME
-
-          # Even if the branch is overridden, make sure we use
-          # the correct branch using the OVERRIDE_*_PROJECT_BRANCH
-          # variable.
-          uc_project=`echo $DEVSTACK_PROJECT_FROM_GIT | tr [:lower:] [:upper:] | tr '-' '_' | sed 's/[^A-Z_]//'`
-          export "OVERRIDE_"$uc_project"_PROJECT_BRANCH"=$ZUUL_BRANCH
-
-          cp devstack-gate/devstack-vm-gate-wrap.sh ./safe-devstack-vm-gate-wrap.sh
-          ./safe-devstack-vm-gate-wrap.sh
-        executable: /bin/bash
-        chdir: '{{ ansible_user_dir }}/workspace'
-      environment: '{{ zuul | zuul_legacy_vars }}'