Run master jobs only on master branch

Add branches: ^master$ so master only jobs
do not run on stable branches.

Cleanup of these jobs will still be required(like [1])
once stable branches are cut. This patch will just
ensure these jobs run only on master branch.

[1] https://review.opendev.org/q/topic:drop-master-jobs

Change-Id: Iad529caa693877c32357142859979f5cd601ee2c

zuul.d/base.yaml

@@ -117,12 +117,14 @@
 
 - job:
     name: neutron-fullstack-with-uwsgi-with-neutron-lib-master
+    branches: ^master$
     parent: neutron-fullstack-with-uwsgi
     required-projects:
       - openstack/neutron-lib
 
 - job:
     name: neutron-fullstack-with-pyroute2-master
+    branches: ^master$
     parent: neutron-fullstack
     required-projects:
       - name: github.com/svinota/pyroute2
@@ -142,6 +144,7 @@
 
 - job:
     name: neutron-functional-with-uwsgi-with-neutron-lib-master
+    branches: ^master$
     parent: neutron-functional-with-uwsgi
     required-projects:
       - openstack/neutron-lib
@@ -166,12 +169,14 @@
 
 - job:
     name: neutron-functional-with-pyroute2-master
+    branches: ^master$
     parent: neutron-functional
     required-projects:
       - name: github.com/svinota/pyroute2
 
 - job:
     name: neutron-functional-with-oslo-master
+    branches: ^master$
     parent: neutron-functional
     description: |
       This job installs all oslo libraries from source and executes the
@@ -212,6 +217,7 @@
 
 - job:
     name: neutron-functional-with-sqlalchemy-master
+    branches: ^master$
     parent: neutron-functional
     required-projects:
       - name: github.com/sqlalchemy/sqlalchemy

zuul.d/tempest-multinode.yaml

@@ -528,6 +528,7 @@
     # TODO(slaweq): propose job with ovs-release and move -master one to
     # experimental queue
     name: neutron-ovn-tempest-full-multinode-ovs-master
+    branches: ^master$
     parent: neutron-ovn-multinode-base
     run: playbooks/multinode-devstack-custom.yaml
     vars:

zuul.d/tempest-singlenode.yaml

@@ -295,6 +295,7 @@
 
 - job:
     name: neutron-ovs-tempest-with-os-ken-master
+    branches: ^master$
     parent: neutron-ovs-tempest-base
     timeout: 10800
     required-projects:
@@ -343,6 +344,7 @@
 
 - job:
     name: neutron-ovn-tempest-with-neutron-lib-master
+    branches: ^master$
     parent: tempest-integrated-networking
     timeout: 10800
     required-projects:
@@ -373,12 +375,14 @@
 
 - job:
     name: neutron-ovs-tempest-with-neutron-lib-master
+    branches: ^master$
     parent: neutron-ovs-tempest-base
     required-projects:
       - openstack/neutron-lib
 
 - job:
     name: neutron-ovs-tempest-with-oslo-master
+    branches: ^master$
     parent: neutron-ovs-tempest-base
     description: |
       Job testing for devstack/tempest testing Neutron with OVS driver.
@@ -622,6 +626,7 @@
 
 - job:
     name: neutron-ovn-tempest-ovs-master
+    branches: ^master$
     description: Job testing for devstack/tempest testing Neutron with ovn driver and OVN master branch
     parent: neutron-ovn-base
     vars:
@@ -634,6 +639,7 @@
 
 - job:
     name: neutron-ovn-tempest-ovs-release-with-oslo-master
+    branches: ^master$
     description: |
       Job testing for devstack/tempest testing Neutron with OVN driver.
       This job installs all oslo libraries from source.
@@ -768,6 +774,7 @@
 
 - job:
     name: neutron-ovn-tempest-ipv6-only-ovs-master
+    branches: ^master$
     parent: neutron-ovn-tempest-ipv6-only-base
     vars:
       devstack_localrc:
@@ -779,6 +786,7 @@
 
 - job:
     name: neutron-ovn-tempest-with-sqlalchemy-master
+    branches: ^master$
     parent: tempest-integrated-networking
     timeout: 10800
     required-projects:
@@ -814,6 +822,7 @@
 
 - job:
     name: neutron-ovs-tempest-with-sqlalchemy-master
+    branches: ^master$
     parent: neutron-ovs-tempest-base
     required-projects:
       - name: github.com/sqlalchemy/sqlalchemy