ceph-infra: merge ntp_debian.yml and ntp_rpm.yml

Merge ntp_debian.yml and ntp_rpm.yml into one (the new file is called
setup_ntp.yml) since they are almost identical. Also avoid repetition
of the common setup step for ntpd and chronyd services.

Signed-off-by: Rishabh Dave <ridave@redhat.com>
(cherry picked from commit b03ab60742)

# Conflicts:
#	roles/ceph-infra/tasks/ntp_debian.yml
#	roles/ceph-infra/tasks/ntp_rpm.yml

roles/ceph-infra/tasks/main.yml

@@ -6,16 +6,7 @@
     - ansible_os_family in ['RedHat', 'Suse']
   tags: configure_firewall
 
-- name: include_tasks "ntp_debian.yml"
-  include_tasks: "ntp_debian.yml"
-  when:
-    - ansible_os_family == 'Debian'
-    - ntp_service_enabled
-  tags: configure_ntp
-
-- name: include_tasks "ntp_rpm.yml"
-  include_tasks: "ntp_rpm.yml"
-  when:
-    - ansible_os_family in ['RedHat', 'Suse']
-    - ntp_service_enabled
+- name: include_tasks setup_ntp.yml
+  include_tasks: setup_ntp.yml
+  when: ntp_service_enabled
   tags: configure_ntp

roles/ceph-infra/tasks/setup_ntp.yml

@@ -0,0 +1,51 @@
+---
+- name: set ntp service name depending on OS family
+  block:
+    - name: set ntp service name for Debian family
+      set_fact:
+        ntp_service_name: ntp
+      when: ansible_os_family == 'Debian'
+    - name: set ntp service name for Red Hat family
+      set_fact:
+        ntp_service_name: ntpd
+      when: ansible_os_family in ['RedHat', 'Suse']
+
+- name: setup ntp daemon
+  block:
+    - name: install and enable timesyncd
+      command: timedatectl set-ntp on
+      when: ntp_daemon_type == "timesyncd"
+
+    - name: disable time sync using timesyncd if we are not using it
+      command: timedatectl set-ntp no
+      when: ntp_daemon_type != "timesyncd"
+
+    - name: setup ntpd
+      when: ntp_daemon_type == "ntpd"
+      block:
+        - name: install ntp
+          package:
+            name: ntp
+            state: present
+          register: result
+          until: result is succeeded
+        - name: enable and start ntp
+          service:
+            name: "{{ ntp_service_name }}"
+            enabled: yes
+            state: started
+
+    - name: setup chronyd
+      when: ntp_daemon_type == "chronyd"
+      block:
+        - name: install chrony
+          package:
+            name: chrony
+            state: present
+          register: result
+          until: result is succeeded
+        - name: enable and start chronyd
+          service:
+            name: chronyd
+            enabled: yes
+            state: started