New Zuul v3 devstack-plugin-nfs-tempest-full job

This is meant to replace legacy-tempest-dsvm-full-devstack-plugin-nfs
in both cinder and nova.

Check the plugin against all the supported branches
(but ocata) to prevent regressions.

Change-Id: I86be2db18685f36fb3f67be03271608637c79151

.zuul.yaml

@@ -0,0 +1,70 @@
+- project:
+    check:
+      jobs:
+        - devstack-plugin-nfs-tempest-full
+        - devstack-plugin-nfs-tempest-full-train
+        - devstack-plugin-nfs-tempest-full-stein
+        - devstack-plugin-nfs-tempest-full-rocky
+        - devstack-plugin-nfs-tempest-full-queens
+    gate:
+      jobs:
+        - devstack-plugin-nfs-tempest-full
+        - devstack-plugin-nfs-tempest-full-train
+        - devstack-plugin-nfs-tempest-full-stein
+        - devstack-plugin-nfs-tempest-full-rocky
+        - devstack-plugin-nfs-tempest-full-queens
+
+- job:
+    name: devstack-plugin-nfs-tempest-full
+    parent: tempest-full
+    description: |
+      tempest-full job based on NFS.
+      Former names for this job where:
+        * legacy-tempest-dsvm-full-devstack-plugin-nfs
+    timeout: 10800
+    required-projects:
+      - opendev.org/x/devstack-plugin-nfs
+    host-vars:
+      controller:
+        devstack_plugins:
+          devstack-plugin-nfs: https://opendev.org/x/devstack-plugin-nfs
+    vars:
+      devstack_localrc:
+        ENABLE_NFS_CINDER: true
+        # enabled by default in tempest-full:
+        ENABLE_VOLUME_MULTIATTACH: false
+    irrelevant-files:
+      - ^(test-|)requirements.txt$
+      - ^setup.cfg$
+
+- job:
+    name: devstack-plugin-nfs-tempest-full-train
+    parent: devstack-plugin-nfs-tempest-full
+    override-checkout: stable/train
+    vars:
+      devstack_localrc:
+        USE_PYTHON3: 'False'
+
+- job:
+    name: devstack-plugin-nfs-tempest-full-stein
+    parent: devstack-plugin-nfs-tempest-full
+    override-checkout: stable/stein
+    vars:
+      devstack_localrc:
+        USE_PYTHON3: 'False'
+
+- job:
+    name: devstack-plugin-nfs-tempest-full-rocky
+    parent: devstack-plugin-nfs-tempest-full
+    override-checkout: stable/rocky
+    vars:
+      devstack_localrc:
+        USE_PYTHON3: 'False'
+
+- job:
+    name: devstack-plugin-nfs-tempest-full-queens
+    parent: devstack-plugin-nfs-tempest-full
+    override-checkout: stable/queens
+    vars:
+      devstack_localrc:
+        USE_PYTHON3: 'False'