add managing individual lines in mesh.properties using values from template

roles/bitbucket_mesh_config/defaults/main.yml

@@ -1,4 +1,6 @@
 ---
+atl_mesh_properties_raw: "{{ lookup('env', 'ATL_MESH_PROPERTIES') }}"
+atl_mesh_properties: "{{ atl_mesh_properties_raw.split(' ') | reject('equalto', '') | list }}"
 atl_mesh_volume_size: "{{ lookup('env', 'ATL_MESH_VOLUME_SIZE') or '50' }}"
 atl_mesh_azname_az1: "{{ lookup('env', 'ATL_MESH_AZNAME_AZ1') or '' }}"
 atl_mesh_azname_az2: "{{ lookup('env', 'ATL_MESH_AZNAME_AZ2') or '' }}"

roles/bitbucket_mesh_config/tasks/main.yml

@@ -64,6 +64,14 @@
     - new_meshvol_from_snap is defined
     - new_meshvol_from_snap | bool
 
+# handle adding/updating some ansible managed mesh properties
+- name: Import management of additional ansible-managed mesh properties
+  ansible.builtin.import_tasks:
+    file: mesh_properties.yml
+  when:
+    - atl_mesh_properties is defined
+    - atl_mesh_properties | length > 0
+
 # handle reregistering the correct node if node.id exists
 - name: Set mesh_node_id var from the existing mesh.properties file
   ansible.builtin.set_fact:

roles/bitbucket_mesh_config/tasks/mesh_properties.yml

@@ -0,0 +1,11 @@
+---
+# Rather than managing the entire mesh.properties file, we only manage individual
+# properties because upstream the product sets some properties by editing the file
+- name: Update additional ansible-managed mesh properties
+  ansible.builtin.lineinfile:
+    path: "{{ mesh_properties_file }}"
+    search_string: "{{ mesh_prop_key }}="
+    line: "{{ item }}"
+  vars:
+    mesh_prop_key: "{{ item.split('=') | first }}"
+  loop: "{{ atl_mesh_properties }}"