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/shared/config_ca.yml

@@ -1,12 +1,11 @@
 ---
-
 - name: config_ca | Read root CA cert for Vault
-  command: "cat /etc/vault/ssl/{{ ca_name }}.pem"
+  command: "cat {{ config_ca_ca_pem }}"
   register: vault_ca_cert_cat
 
 - name: config_ca | Pull current CA cert from Vault
   uri:
-    url: "{{ vault_leader_url }}/v1/{{ mount_name }}/ca/pem"
+    url: "{{ vault_leader_url }}/v1/{{ config_ca_mount_path }}/ca/pem"
     headers: "{{ vault_headers }}"
     return_content: true
     status_code: 200,204
@@ -14,13 +13,13 @@
   register: vault_pull_current_ca
 
 - name: config_ca | Read root CA key for Vault
-  command: "cat /etc/vault/ssl/{{ ca_name }}-key.pem"
+  command: "cat {{ config_ca_ca_key }}"
   register: vault_ca_key_cat
   when: vault_ca_cert_cat.stdout.strip() != vault_pull_current_ca.content.strip()
 
 - name: config_ca | Configure pki mount to use the found root CA cert and key
   uri:
-    url: "{{ vault_leader_url }}/v1/{{ mount_name }}/config/ca"
+    url: "{{ vault_leader_url }}/v1/{{ config_ca_mount_path }}/config/ca"
     headers: "{{ vault_headers }}"
     method: POST
     body_format: json