diff --git a/ansible/group_vars/all.yml b/ansible/group_vars/all.yml
index 9b5922f3e6..97aae5b901 100644
--- a/ansible/group_vars/all.yml
+++ b/ansible/group_vars/all.yml
@@ -68,6 +68,9 @@ container_proxy:
 # to the api_interface.  Allow the bind address to be an override.
 api_interface_address: "{{ hostvars[inventory_hostname]['ansible_' + api_interface]['ipv4']['address'] }}"
 
+# This is used to get the ip corresponding to the storage_interface.
+storage_interface_address: "{{ hostvars[inventory_hostname]['ansible_' + storage_interface]['ipv4']['address'] }}"
+
 ################
 # Chrony options
 ################
@@ -968,6 +971,16 @@ ceph_pool_pgp_num: 8
 # Valid options are [ filestore, bluestore]
 ceph_osd_store_type: "bluestore"
 
+# Set the host type for ceph daemons
+# Valid options are [ IP, HOSTNAME, FQDN, INVENTORY ]
+# Note: For existing clusters, please don't modify this parameter. Otherwise,
+# the existing mon will be invalidated, and the existing osd crush map will
+# be changed.
+ceph_mon_host_type: "IP"
+ceph_mgr_host_type: "INVENTORY"
+ceph_osd_host_type: "IP"
+ceph_mds_host_type: "INVENTORY"
+
 #####################
 # VMware support
 ######################
diff --git a/ansible/roles/ceph/defaults/main.yml b/ansible/roles/ceph/defaults/main.yml
index 32fc9216b6..2c94b9da8a 100644
--- a/ansible/roles/ceph/defaults/main.yml
+++ b/ansible/roles/ceph/defaults/main.yml
@@ -77,6 +77,27 @@ partition_name_osd_bootstrap: "{{ 'KOLLA_CEPH_OSD_BOOTSTRAP_BS' if ceph_osd_stor
 partition_name_cache_bootstrap: "{{ 'KOLLA_CEPH_OSD_CACHE_BOOTSTRAP_BS' if ceph_osd_store_type == 'bluestore' else 'KOLLA_CEPH_OSD_CACHE_BOOTSTRAP' }}"
 partition_name_osd_data: "{{ 'KOLLA_CEPH_DATA_BS' if ceph_osd_store_type == 'bluestore' else 'KOLLA_CEPH_DATA' }}"
 
+ceph_mon_hostname: "{%- if ceph_mon_host_type == 'HOSTNAME' -%}{{ ansible_hostname }}
+                    {%- elif ceph_mon_host_type == 'FQDN' -%}{{ ansible_fqdn }}
+                    {%- elif ceph_mon_host_type == 'INVENTORY' -%}{{ inventory_hostname }}
+                    {%- else -%}{{ storage_interface_address }}
+                    {%- endif %}"
+ceph_mgr_hostname: "{%- if ceph_mgr_host_type == 'HOSTNAME' -%}{{ ansible_hostname }}
+                    {%- elif ceph_mgr_host_type == 'FQDN' -%}{{ ansible_fqdn }}
+                    {%- elif ceph_mgr_host_type == 'INVENTORY' -%}{{ inventory_hostname }}
+                    {%- else -%}{{ storage_interface_address }}
+                    {%- endif %}"
+ceph_osd_hostname: "{%- if ceph_osd_host_type == 'HOSTNAME' -%}{{ ansible_hostname }}
+                    {%- elif ceph_osd_host_type == 'FQDN' -%}{{ ansible_fqdn }}
+                    {%- elif ceph_osd_host_type == 'INVENTORY' -%}{{ inventory_hostname }}
+                    {%- else -%}{{ storage_interface_address }}
+                    {%- endif %}"
+ceph_mds_hostname: "{%- if ceph_mds_host_type == 'HOSTNAME' -%}{{ ansible_hostname }}
+                    {%- elif ceph_mds_host_type == 'FQDN' -%}{{ ansible_fqdn }}
+                    {%- elif ceph_mds_host_type == 'INVENTORY' -%}{{ inventory_hostname }}
+                    {%- else -%}{{ storage_interface_address }}
+                    {%- endif %}"
+
 ####################
 ## Ceph_rgw_keystone
 ####################
diff --git a/ansible/roles/ceph/tasks/bootstrap_osds.yml b/ansible/roles/ceph/tasks/bootstrap_osds.yml
index aef33395e7..d6af5f1c5b 100644
--- a/ansible/roles/ceph/tasks/bootstrap_osds.yml
+++ b/ansible/roles/ceph/tasks/bootstrap_osds.yml
@@ -59,7 +59,7 @@
       USE_EXTERNAL_JOURNAL: "{{ item.1.external_journal | bool }}"
       OSD_FILESYSTEM: "{{ ceph_osd_filesystem }}"
       OSD_INITIAL_WEIGHT: "{{ osd_initial_weight }}"
-      HOSTNAME: "{{ hostvars[inventory_hostname]['ansible_' + storage_interface]['ipv4']['address'] }}"
+      HOSTNAME: "{{ ceph_osd_hostname }}"
       OSD_STORETYPE: "{{ ceph_osd_store_type }}"
       OSD_BS_DEV: "{{ item.1.device | default('') }}"
       OSD_BS_LABEL: "{{ item.1.partition_label | default('') }}"
@@ -120,7 +120,7 @@
       USE_EXTERNAL_JOURNAL: "{{ item.1.external_journal | bool }}"
       OSD_FILESYSTEM: "{{ ceph_osd_filesystem }}"
       OSD_INITIAL_WEIGHT: "{{ osd_initial_weight }}"
-      HOSTNAME: "{{ hostvars[inventory_hostname]['ansible_' + storage_interface]['ipv4']['address'] }}"
+      HOSTNAME: "{{ ceph_osd_hostname }}"
       OSD_STORETYPE: "{{ ceph_osd_store_type }}"
       OSD_BS_DEV: "{{ item.1.device | default('') }}"
       OSD_BS_LABEL: "{{ item.1.partition_label | default('') }}"
diff --git a/ansible/roles/ceph/tasks/generate_cluster.yml b/ansible/roles/ceph/tasks/generate_cluster.yml
index 121e36aaa4..c0f7a3dd24 100644
--- a/ansible/roles/ceph/tasks/generate_cluster.yml
+++ b/ansible/roles/ceph/tasks/generate_cluster.yml
@@ -8,8 +8,8 @@
     environment:
       KOLLA_BOOTSTRAP:
       KOLLA_CONFIG_STRATEGY: "{{ config_strategy }}"
-      MON_IP: "{{ hostvars[inventory_hostname]['ansible_' + storage_interface]['ipv4']['address'] }}"
-      HOSTNAME: "{{ hostvars[inventory_hostname]['ansible_' + storage_interface]['ipv4']['address'] }}"
+      MON_IP: "{{ storage_interface_address }}"
+      HOSTNAME: "{{ ceph_mon_hostname }}"
     image: "{{ ceph_mon_image_full }}"
     labels:
       BOOTSTRAP:
diff --git a/ansible/roles/ceph/tasks/start_mdss.yml b/ansible/roles/ceph/tasks/start_mdss.yml
index 8c3b7806ab..9e1a66ed9d 100644
--- a/ansible/roles/ceph/tasks/start_mdss.yml
+++ b/ansible/roles/ceph/tasks/start_mdss.yml
@@ -22,24 +22,19 @@
 - name: Geting ceph mds keyring
   become: true
   kolla_ceph_keyring:
-    name: "mds.{{ hostvars[item]['inventory_hostname'] }}"
+    name: "mds.{{ ceph_mds_hostname }}"
     caps: "{{ ceph_client_mds_keyring_caps }}"
   register: ceph_mds_auth
-  run_once: true
   delegate_to: "{{ groups['ceph-mon'][0] }}"
-  with_items: "{{ groups['ceph-mds'] }}"
 
 - name: Pushing ceph mds keyring to ceph-mds
   become: true
   copy:
     content: |
-      [mds.{{ item.item }}]
-          key = {{ item.keyring.key }}
-    dest: "{{ node_config_directory }}/ceph-mds/ceph.mds.{{ inventory_hostname }}.keyring"
+      [mds.{{ ceph_mds_hostname }}]
+          key = {{ ceph_mds_auth.keyring.key }}
+    dest: "{{ node_config_directory }}/ceph-mds/ceph.mds.{{ ceph_mds_hostname }}.keyring"
     mode: "0600"
-  when:
-    - inventory_hostname == item.item
-  with_items: "{{ ceph_mds_auth.results }}"
 
 - name: Starting ceph-mds container
   become: true
diff --git a/ansible/roles/ceph/tasks/start_mgrs.yml b/ansible/roles/ceph/tasks/start_mgrs.yml
index 3bdddf100f..fe0b162de1 100644
--- a/ansible/roles/ceph/tasks/start_mgrs.yml
+++ b/ansible/roles/ceph/tasks/start_mgrs.yml
@@ -2,24 +2,19 @@
 - name: Getting ceph mgr keyring
   become: true
   kolla_ceph_keyring:
-    name: "mgr.{{ item }}"
+    name: "mgr.{{ ceph_mgr_hostname }}"
     caps: "{{ ceph_client_mgr_keyring_caps }}"
   register: ceph_mgr_keyring
-  run_once: true
   delegate_to: "{{ groups['ceph-mon'][0] }}"
-  with_items: "{{ groups['ceph-mgr'] }}"
 
 - name: Pushing ceph mgr keyring to ceph-mgr
   become: true
   copy:
     content: |
-      [mgr.{{ item.item }}]
-          key = {{ item.keyring.key }}
-    dest: "{{ node_config_directory }}/ceph-mgr/ceph.mgr.{{ inventory_hostname }}.keyring"
+      [mgr.{{ ceph_mgr_hostname }}]
+          key = {{ ceph_mgr_keyring.keyring.key }}
+    dest: "{{ node_config_directory }}/ceph-mgr/ceph.mgr.{{ ceph_mgr_hostname }}.keyring"
     mode: "0600"
-  when:
-    - inventory_hostname == item.item
-  with_items: "{{ ceph_mgr_keyring.results }}"
 
 - name: Starting ceph-mgr container
   become: true
diff --git a/ansible/roles/ceph/tasks/start_mons.yml b/ansible/roles/ceph/tasks/start_mons.yml
index 4428e576ae..0cb4884364 100644
--- a/ansible/roles/ceph/tasks/start_mons.yml
+++ b/ansible/roles/ceph/tasks/start_mons.yml
@@ -6,7 +6,7 @@
     common_options: "{{ docker_common_options }}"
     environment:
       KOLLA_CONFIG_STRATEGY: "{{ config_strategy }}"
-      HOSTNAME: "{{ hostvars[inventory_hostname]['ansible_' + storage_interface]['ipv4']['address'] }}"
+      HOSTNAME: "{{ ceph_mon_hostname }}"
     image: "{{ ceph_mon_image_full }}"
     name: "ceph_mon"
     volumes:
diff --git a/ansible/roles/ceph/templates/ceph-mds.json.j2 b/ansible/roles/ceph/templates/ceph-mds.json.j2
index dc7073c635..f6b2144deb 100644
--- a/ansible/roles/ceph/templates/ceph-mds.json.j2
+++ b/ansible/roles/ceph/templates/ceph-mds.json.j2
@@ -1,5 +1,5 @@
 {
-    "command": "/usr/bin/ceph-mds -f -c /etc/ceph/ceph.conf -i {{ inventory_hostname }}",
+    "command": "/usr/bin/ceph-mds -f -c /etc/ceph/ceph.conf -i {{ ceph_mds_hostname }}",
     "config_files": [
         {
             "source": "{{ container_config_directory }}/ceph.conf",
@@ -8,8 +8,8 @@
             "perm": "0600"
         },
         {
-            "source": "{{ container_config_directory }}/ceph.mds.{{ inventory_hostname }}.keyring",
-            "dest": "/var/lib/ceph/mds/ceph-{{ inventory_hostname }}/keyring",
+            "source": "{{ container_config_directory }}/ceph.mds.{{ ceph_mds_hostname }}.keyring",
+            "dest": "/var/lib/ceph/mds/ceph-{{ ceph_mds_hostname }}/keyring",
             "owner": "root",
             "perm": "0644"
         }
diff --git a/ansible/roles/ceph/templates/ceph-mgr.json.j2 b/ansible/roles/ceph/templates/ceph-mgr.json.j2
index 75c3885f85..48ce22b3b0 100644
--- a/ansible/roles/ceph/templates/ceph-mgr.json.j2
+++ b/ansible/roles/ceph/templates/ceph-mgr.json.j2
@@ -1,5 +1,5 @@
 {
-    "command": "/usr/bin/ceph-mgr -f -i {{ inventory_hostname }}",
+    "command": "/usr/bin/ceph-mgr -f -i {{ ceph_mgr_hostname }}",
     "config_files": [
         {
             "source": "{{ container_config_directory }}/ceph.conf",
@@ -8,8 +8,8 @@
             "perm": "0600"
         },
         {
-            "source": "{{ container_config_directory }}/ceph.mgr.{{ inventory_hostname }}.keyring",
-            "dest": "/var/lib/ceph/mgr/ceph-{{ inventory_hostname }}/keyring",
+            "source": "{{ container_config_directory }}/ceph.mgr.{{ ceph_mgr_hostname }}.keyring",
+            "dest": "/var/lib/ceph/mgr/ceph-{{ ceph_mgr_hostname }}/keyring",
             "owner": "ceph",
             "perm": "0600"
         },
diff --git a/ansible/roles/ceph/templates/ceph-mon.json.j2 b/ansible/roles/ceph/templates/ceph-mon.json.j2
index 68e50cd523..b92e00395b 100644
--- a/ansible/roles/ceph/templates/ceph-mon.json.j2
+++ b/ansible/roles/ceph/templates/ceph-mon.json.j2
@@ -1,5 +1,5 @@
 {
-    "command": "/usr/bin/ceph-mon -f {% if ceph_debug %}-d{% endif %} -i {{ hostvars[inventory_hostname]['ansible_' + storage_interface]['ipv4']['address'] }} --public-addr {{ hostvars[inventory_hostname]['ansible_' + storage_interface]['ipv4']['address'] }}:6789",
+    "command": "/usr/bin/ceph-mon -f {% if ceph_debug %}-d{% endif %} -i {{ ceph_mon_hostname }} --public-addr {{ storage_interface_address }}:6789",
     "config_files": [
         {
             "source": "{{ container_config_directory }}/ceph.conf",
diff --git a/ansible/roles/ceph/templates/ceph-osd.json.j2 b/ansible/roles/ceph/templates/ceph-osd.json.j2
index fd4fc3e97f..fe6f754696 100644
--- a/ansible/roles/ceph/templates/ceph-osd.json.j2
+++ b/ansible/roles/ceph/templates/ceph-osd.json.j2
@@ -1,5 +1,5 @@
 {
-    "command": "/usr/bin/ceph-osd -f {% if ceph_debug %}-d{% endif %} --public-addr {{ hostvars[inventory_hostname]['ansible_' + storage_interface]['ipv4']['address'] }} --cluster-addr {{ hostvars[inventory_hostname]['ansible_' + cluster_interface]['ipv4']['address'] }}",
+    "command": "/usr/bin/ceph-osd -f {% if ceph_debug %}-d{% endif %} --public-addr {{ storage_interface_address }} --cluster-addr {{ hostvars[inventory_hostname]['ansible_' + cluster_interface]['ipv4']['address'] }}",
     "config_files": [
         {
             "source": "{{ container_config_directory }}/ceph.conf",
diff --git a/ansible/roles/ceph/templates/ceph.conf.j2 b/ansible/roles/ceph/templates/ceph.conf.j2
index db82800f8f..0f3423b929 100644
--- a/ansible/roles/ceph/templates/ceph.conf.j2
+++ b/ansible/roles/ceph/templates/ceph.conf.j2
@@ -6,7 +6,15 @@ log to stderr = false
 err to stderr = false
 
 fsid = {{ ceph_cluster_fsid }}
+{% if ceph_mon_host_type == 'HOSTNAME' %}
+mon initial members = {% for host in groups['ceph-mon'] %}{{ hostvars[host]['ansible_hostname'] }}{% if not loop.last %}, {% endif %}{% endfor %}
+{% elif ceph_mon_host_type == 'FQDN' %}
+mon initial members = {% for host in groups['ceph-mon'] %}{{ hostvars[host]['ansible_fqdn'] }}{% if not loop.last %}, {% endif %}{% endfor %}
+{% elif ceph_mon_host_type == 'INVENTORY' %}
+mon initial members = {% for host in groups['ceph-mon'] %}{{ host }}{% if not loop.last %}, {% endif %}{% endfor %}
+{%- else %}
 mon initial members = {% for host in groups['ceph-mon'] %}{{ hostvars[host]['ansible_' + hostvars[host]['storage_interface']]['ipv4']['address'] }}{% if not loop.last %}, {% endif %}{% endfor %}
+{% endif %}
 
 mon host = {% for host in groups['ceph-mon'] %}{{ hostvars[host]['ansible_' + hostvars[host]['storage_interface']]['ipv4']['address'] }}{% if not loop.last %}, {% endif %}{% endfor %}