Change single Vault pki mount to multi pki mounts paths for etcd and kube CA`s (#1552)

* Added update CA trust step for etcd and kube/secrets roles

* Added load_balancer_domain_name to certificate alt names if defined. Reset CA's in RedHat os.

* Rename kube-cluster-ca.crt to vault-ca.crt, we need separated CA`s for vault, etcd and kube.

* Vault role refactoring, remove optional cert vault auth because not not used and worked. Create separate CA`s fro vault and etcd.

* Fixed different certificates set for vault cert_managment

* Update doc/vault.md

* Fixed condition create vault CA, wrong group

* Fixed missing etcd_cert_path mount for rkt deployment type. Distribute vault roles for all vault hosts

* Removed wrong when condition in create etcd role vault tasks.

roles/vault/tasks/bootstrap/sync_etcd_certs.yml

@@ -0,0 +1,16 @@
+---
+
+- include: ../shared/sync_file.yml
+  vars:
+    sync_file: "ca.pem"
+    sync_file_dir: "{{ vault_etcd_cert_dir }}"
+    sync_file_hosts: "{{ groups.etcd }}"
+    sync_file_is_cert: true
+
+- name: bootstrap/sync_etcd_certs | Set facts for etcd sync_file results
+  set_fact:
+    vault_etcd_ca_cert_needed: "{{ sync_file_results[0]['no_srcs'] }}"
+
+- name: bootstrap/sync_etcd_certs | Unset sync_file_results after ca.pem sync
+  set_fact:
+    sync_file_results: []