Set openafs cache sizes for mirror/mirror-update

Set the openafs cache values to the same as the puppet set values for
openafs-client role users.

Change-Id: I5a58673cad8df2a1e8dddb592c322e751d7f2ac5

.zuul.yaml

@@ -550,10 +550,12 @@
         - playbooks/service-mirror.yaml
     files:
       - roles/
+      - playbooks/group_vars/mirror_opendev.yaml
       - playbooks/roles/mirror/
       - playbooks/roles/letsencrypt.*
       - playbooks/service-letsencrypt.yaml
       - playbooks/service-mirror.yaml
+      - playbooks/zuul/templates/group_vars/mirror_opendev.yaml.j2
       - testinfra/test_mirror.py
 
     host-vars:

playbooks/service-mirror-update.yaml

@@ -8,4 +8,5 @@
         - kdc03.openstack.org
         - kdc04.openstack.org
     - role: openafs-client
+      openafs_client_cache_size: "{{ afs_client_cache_size | default(10000000) }}" # 10GiB
     - role: mirror-update

playbooks/service-mirror.yaml

@@ -8,4 +8,5 @@
         - kdc03.openstack.org
         - kdc04.openstack.org
     - role: openafs-client
-    - role: mirror
+      openafs_client_cache_size: "{{ afs_client_cache_size | default(50000000) }}" # 50GiB
+    - role: mirror

playbooks/zuul/run-base.yaml

@@ -81,6 +81,7 @@
         - group_vars/letsencrypt.yaml
         - group_vars/registry.yaml
         - group_vars/control-plane-clouds.yaml
+        - group_vars/mirror_opendev.yaml
         - host_vars/bridge.openstack.org.yaml
         - host_vars/letsencrypt01.opendev.org.yaml
         - host_vars/letsencrypt02.opendev.org.yaml

playbooks/zuul/templates/group_vars/mirror_opendev.yaml.j2

@@ -0,0 +1 @@
+afs_client_cache_size: 500000 # 500MiB