diff --git a/defaults/main.yml b/defaults/main.yml
index 4a760875..fe5ab3d9 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -29,8 +29,10 @@ rabbitmq_node_address: "{{ ansible_host }}"
 rabbit_system_user_name: rabbitmq
 rabbit_system_group_name: rabbitmq
 
-# Hosts file entries (set this to an empty list to disable /etc/hosts generation
-# for the rabbitmq cluster nodes)
+# Allow role to adjust /etc/hosts file
+rabbitmq_manage_hosts_entries: True
+
+# Hosts file entries
 rabbitmq_hosts_entries: >-
   {{ groups[rabbitmq_host_group] | map('extract', hostvars) | list |
      json_query(
diff --git a/releasenotes/notes/rabbitmq_manage_hosts-834150c45dfc0771.yaml b/releasenotes/notes/rabbitmq_manage_hosts-834150c45dfc0771.yaml
new file mode 100644
index 00000000..707a0ce8
--- /dev/null
+++ b/releasenotes/notes/rabbitmq_manage_hosts-834150c45dfc0771.yaml
@@ -0,0 +1,9 @@
+---
+features:
+  - |
+    Added variable ``rabbitmq_manage_hosts_entries`` that controls if
+    rabbitmq_server role will attempt to adjust /etc/hosts file
+fixes:
+  - |
+    Do not duplicate records in /etc/hosts file by rabbitmq role when hosts
+    file is already managed by OSA.
diff --git a/tasks/rabbitmq_pre_install.yml b/tasks/rabbitmq_pre_install.yml
index 393dc6a2..22e40829 100644
--- a/tasks/rabbitmq_pre_install.yml
+++ b/tasks/rabbitmq_pre_install.yml
@@ -30,21 +30,27 @@
     - rabbitmq-package-rpm
     - rabbitmq-package-rpm-get
 
-- name: Fix /etc/hosts
-  lineinfile:
-    dest: /etc/hosts
-    state: present
-    line: "{{ item.address }} {{ item.hostnames | join(' ') }}"
-  with_items: "{{ rabbitmq_hosts_entries }}"
-  tags:
-    - rabbitmq-config
-
-- name: Ensure localhost /etc/hosts entry is correct
-  lineinfile:
-    dest: /etc/hosts
-    state: present
-    line: '127.0.0.1 localhost'
-    regexp: '^127.0.0.1'
+- name: Manage /etc/hosts files
+  block:
+    - name: Fail if hosts file is not managed yet
+      command: grep "OPENSTACK-ANSIBLE MANAGED BLOCK" /etc/hosts
+      changed_when: false
+  rescue:
+    - name: Rescue failure and add required records
+      lineinfile:
+        dest: /etc/hosts
+        state: present
+        line: "{{ item.address }} {{ item.hostnames | join(' ') }}"
+      with_items: "{{ rabbitmq_hosts_entries }}"
+  always:
+    - name: Ensure localhost /etc/hosts entry is correct
+      lineinfile:
+        dest: /etc/hosts
+        state: present
+        line: '127.0.0.1 localhost'
+        regexp: '^127\.0\.0\.1'
+  when:
+    - rabbitmq_manage_hosts_entries | bool
   tags:
     - rabbitmq-config