Keep few integration jobs running on Bionic

Few jobs are still failing on Focal and cannot be fixed
before migration is planned[1], let's keeping failing jobs
running on bionic nodeset till
https://bugs.launchpad.net/manila/+bug/1896672 is fixed
otherwise base devstack jobs switching to Focal will block
the gate.

[1] http://lists.openstack.org/pipermail/openstack-discuss/2020-September/017466.html

Story: #2007865
Task: #40194
Change-Id: Ibc942ceffcb362fabc7685a75d2180a5786c5175

zuul.d/manila-tempest-jobs.yaml

@@ -118,6 +118,12 @@
     name: manila-tempest-plugin-zfsonlinux
     description: Test ZFSOnLinux multibackend (DHSS=False) with postgresql db
     parent: manila-tempest-plugin-base
+    # TODO(gmann): Remove the below nodeset setting to Bionic once
+    # https://bugs.launchpad.net/manila/+bug/1896672 is fixed
+    # Once nodeset is removed form here then devstack base job
+    # will automatically run this job on Ubuntu Focal nodeset from
+    # Victoria gate onwards.
+    nodeset: openstack-single-node-bionic
     vars:
       tempest_test_regex: '(^manila_tempest_tests.tests)(?=.*\[.*\bbackend\b.*\])'
       devstack_localrc:
@@ -165,6 +171,12 @@
       Test LVM multibackend (DHSS=False) in a 4+6 (dual-stack) devstack
       environment with IPv6 control plane endpoints.
     parent: manila-tempest-plugin-ipv6-base
+    # TODO(gmann): Remove the below nodeset setting to Bionic once
+    # https://bugs.launchpad.net/manila/+bug/1896672 is fixed
+    # Once nodeset is removed form here then devstack base job
+    # will automatically run this job on Ubuntu Focal nodeset from
+    # Victoria gate onwards.
+    nodeset: openstack-single-node-bionic
     required-projects:
       - openstack/neutron-dynamic-routing
     vars:
@@ -250,6 +262,12 @@
     description: |
       Test the generic driver multibackend (DHSS=True) with NFS and CIFS
     parent: manila-tempest-plugin-base
+    # TODO(gmann): Remove the below nodeset setting to Bionic once
+    # https://bugs.launchpad.net/manila/+bug/1896672 is fixed
+    # Once nodeset is removed form here then devstack base job
+    # will automatically run this job on Ubuntu Focal nodeset from
+    # Victoria gate onwards.
+    nodeset: openstack-single-node-bionic
     vars:
       tempest_test_regex: '(^manila_tempest_tests.tests)(?=.*\[.*\bbackend\b.*\])'
       # The generic driver uses nova VMs as share servers; running with a
@@ -329,6 +347,12 @@
     name: manila-tempest-plugin-cephfs-nfs
     description: Test CephFS NFS (DHSS=False)
     parent: manila-tempest-plugin-base
+    # TODO(gmann): Remove the below nodeset setting to Bionic once
+    # https://bugs.launchpad.net/manila/+bug/1896672 is fixed
+    # Once nodeset is removed form here then devstack base job
+    # will automatically run this job on Ubuntu Focal nodeset from
+    # Victoria gate onwards.
+    nodeset: openstack-single-node-bionic
     required-projects:
       - openstack/devstack-plugin-ceph
       - openstack/neutron-dynamic-routing
@@ -524,6 +548,12 @@
     description: |
       Test the GlusterFS driver (DHSS=False) with the native NFS protocol
     parent: manila-tempest-plugin-standalone-base
+    # TODO(gmann): Remove the below nodeset setting to Bionic once
+    # https://bugs.launchpad.net/manila/+bug/1896672 is fixed
+    # Once nodeset is removed form here then devstack base job
+    # will automatically run this job on Ubuntu Focal nodeset from
+    # Victoria gate onwards.
+    nodeset: openstack-single-node-bionic
     required-projects:
       - x/devstack-plugin-glusterfs
     vars: