Setup OSA os_sahara core group

This patch implements a core group for the openstack-ansible-os_sahara
repository in order to allow a service specific set of core reviewers to
be added to it.

The openstack-ansible-core team retains its previous voting capabilities.

Change-Id: I6c2603ebac06d8518ae82acc19a0b0510f2168d0

gerrit/acls/openstack/openstack-ansible-os_sahara.config

@@ -0,0 +1,18 @@
+[access "refs/heads/*"]
+abandon = group openstack-ansible-core
+abandon = group openstack-ansible-os_sahara-core
+create = group openstack-ansible-release
+label-Code-Review = -2..+2 group openstack-ansible-core
+label-Code-Review = -2..+2 group openstack-ansible-os_sahara-core
+label-Workflow = -1..+1 group openstack-ansible-core
+label-Workflow = -1..+1 group openstack-ansible-os_sahara-core
+
+[access "refs/tags/*"]
+pushSignedTag = group openstack-ansible-release
+
+[receive]
+requireChangeId = true
+requireContributorAgreement = true
+
+[submit]
+mergeContent = true

gerrit/projects.yaml

@@ -2742,7 +2742,6 @@
   groups:
     - openstack-ansible
   docimpact-group: openstack-ansible
-  acl-config: /home/gerrit2/acls/openstack/openstack-ansible.config
 - project: openstack/openstack-ansible-os_swift
   description: Role os_swift for OpenStack-Ansible
   groups: