add shared salt pki/cert directory
diff --git a/glusterfs/client/volume/salt_pki.yml b/glusterfs/client/volume/salt_pki.yml
new file mode 100644
index 0000000..822a086
--- /dev/null
+++ b/glusterfs/client/volume/salt_pki.yml
@@ -0,0 +1,10 @@
+parameters:
+  _param:
+    salt_glusterfs_service_host: ${_param:glusterfs_service_host}
+  glusterfs:
+    client:
+      volumes:
+        salt_pki:
+          path: /srv/salt/pki
+          server: ${_param:salt_glusterfs_service_host}
+          opts: "defaults,backup-volfile-servers=${_param:cluster_node01_address}:${_param:cluster_node02_address}:${_param:cluster_node03_address}"
diff --git a/glusterfs/server/volume/salt_pki.yml b/glusterfs/server/volume/salt_pki.yml
new file mode 100644
index 0000000..7af39da
--- /dev/null
+++ b/glusterfs/server/volume/salt_pki.yml
@@ -0,0 +1,17 @@
+parameters:
+  glusterfs:
+    server:
+      volumes:
+        salt_pki:
+          storage: /srv/glusterfs/salt_pki
+          replica: 3
+          bricks:
+            - ${_param:cluster_node01_address}:/srv/glusterfs/salt_pki
+            - ${_param:cluster_node02_address}:/srv/glusterfs/salt_pki
+            - ${_param:cluster_node03_address}:/srv/glusterfs/salt_pki
+          options:
+            cluster.readdir-optimize: On
+            nfs.disable: On
+            network.remote-dio: On
+            diagnostics.client-log-level: WARNING
+            diagnostics.brick-log-level: WARNING