Migrate neutron-tempest-linuxbridge job to zuulv3 and python 3

Related-bug: #1804844

Change-Id: I800aa23d2dd176db512fb1539639301b87279ae4

.zuul.yaml

@@ -182,14 +182,16 @@
 
 - job:
     name: neutron-tempest-linuxbridge
-    parent: legacy-dsvm-base
-    run: playbooks/legacy/neutron-tempest-linuxbridge/run.yaml
-    post-run: playbooks/legacy/neutron-tempest-linuxbridge/post.yaml
+    parent: tempest-full-py3
     timeout: 10800
     required-projects:
       - openstack-infra/devstack-gate
       - openstack/neutron
       - openstack/tempest
+    vars:
+      tempest_concurrency: 4
+      devstack_localrc:
+        Q_AGENT: linuxbridge
     irrelevant-files:
       - ^(test-|)requirements.txt$
       - ^.*\.rst$

playbooks/legacy/neutron-tempest-linuxbridge/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/neutron-tempest-linuxbridge/run.yaml

@@ -1,57 +0,0 @@
-- hosts: all
-  name: Autoconverted job legacy-tempest-dsvm-neutron-linuxbridge from old job gate-tempest-dsvm-neutron-linuxbridge-ubuntu-xenial
-  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-infra/devstack-gate
-              dest: devstack-gate
-          EOF
-          /usr/zuul-env/bin/zuul-cloner -m clonemap.yaml --cache-dir /opt/git \
-              git://git.openstack.org \
-              openstack-infra/devstack-gate
-        executable: /bin/bash
-        chdir: '{{ ansible_user_dir }}/workspace'
-      environment: '{{ zuul | zuul_legacy_vars }}'
-
-    - shell:
-        cmd: |
-          set -e
-          set -x
-          cat << 'EOF' >>"/tmp/dg-local.conf"
-          [[local|localrc]]
-          Q_AGENT=linuxbridge
-          PHYSICAL_NETWORK=default
-
-          EOF
-        executable: /bin/bash
-        chdir: '{{ ansible_user_dir }}/workspace'
-      environment: '{{ zuul | zuul_legacy_vars }}'
-
-    - shell:
-        cmd: |
-          set -e
-          set -x
-          export PYTHONUNBUFFERED=true
-          export DEVSTACK_GATE_TEMPEST=1
-          export DEVSTACK_GATE_TEMPEST_FULL=1
-          export DEVSTACK_GATE_NEUTRON=1
-          export DEVSTACK_GATE_TLSPROXY=1
-          export BRANCH_OVERRIDE=default
-          if [ "$BRANCH_OVERRIDE" != "default" ] ; then
-              export OVERRIDE_ZUUL_BRANCH=$BRANCH_OVERRIDE
-          fi
-          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 }}'