Vault security hardening and role isolation

roles/vault/tasks/shared/sync_auth_certs.yml

@@ -0,0 +1,17 @@
+---
+
+- include: sync_file.yml
+  vars:
+    sync_file: "auth-ca.pem"
+    sync_file_dir: "{{ vault_cert_dir }}"
+    sync_file_hosts: "{{ groups.vault }}"
+    sync_file_is_cert: true
+
+- name: shared/sync_auth_certs | Set facts for vault sync_file results
+  set_fact:
+    vault_auth_ca_cert_needed: "{{ sync_file_results[0]['no_srcs'] }}"
+
+
+- name: shared/sync_auth_certs | Unset sync_file_results after auth-ca.pem sync
+  set_fact:
+    sync_file_results: []