[stable/zed] Mount CA into Keystone + Magnum (#1299)

\n\nCloses #1274
diff --git a/roles/keystone/vars/main.yml b/roles/keystone/vars/main.yml
index 625ff2f..1b67f80 100644
--- a/roles/keystone/vars/main.yml
+++ b/roles/keystone/vars/main.yml
@@ -22,11 +22,14 @@
     mounts:
       keystone_api:
         keystone_api:
-          volumeMounts: "{{ keystone_domains | vexxhost.atmosphere.keystone_domains_to_mounts }}"
+          volumeMounts: "{{ keystone_domains | vexxhost.atmosphere.keystone_domains_to_mounts + [{'name': 'etc-ssl-certs', 'mountPath': '/etc/ssl/certs', 'readOnly': true}] }}"
           volumes:
             - name: keystone-openid-metadata
               configMap:
                 name: keystone-openid-metadata
+            - name: etc-ssl-certs
+              hostPath:
+                path: "{{ defaults_ca_certificates_path }}"
   conf:
     keystone:
       DEFAULT: