Fix CONDITIONAL_BARE_VARS deprecation warning in ansible 2.8

roles/matrix-base/tasks/main.yml

@@ -3,22 +3,22 @@
     - always
 
 - import_tasks: "{{ role_path }}/tasks/clean_up_old_files.yml"
-  when: run_setup
+  when: run_setup|bool
   tags:
     - setup-all
 
 - import_tasks: "{{ role_path }}/tasks/setup_server_base.yml"
-  when: run_setup
+  when: run_setup|bool
   tags:
     - setup-all
 
 - import_tasks: "{{ role_path }}/tasks/setup_matrix_base.yml"
-  when: run_setup
+  when: run_setup|bool
   tags:
     - setup-all
 
 - import_tasks: "{{ role_path }}/tasks/setup_well_known.yml"
-  when: run_setup
+  when: run_setup|bool
   tags:
     - setup-all
     - setup-mxisd
@@ -28,6 +28,6 @@
 - import_tasks: "{{ role_path }}/tasks/self_check_dns.yml"
   delegate_to: 127.0.0.1
   become: false
-  when: run_self_check
+  when: run_self_check|bool
   tags:
     - self-check

roles/matrix-base/tasks/self_check_dns.yml

@@ -19,7 +19,7 @@
     - name: Determine domains that we require certificates for (mxisd)
       set_fact:
         dns_srv_record_checks: "{{ dns_srv_record_checks + [dns_srv_record_check_mxisd] }}"
-  when: "matrix_mxisd_enabled"
+  when: matrix_mxisd_enabled|bool
 
 - name: Perform DNS SRV checks
   include_tasks: "{{ role_path }}/tasks/self_check_dns_srv.yml"

roles/matrix-base/tasks/setup_well_known.yml

@@ -27,10 +27,10 @@
     mode: 0644
     owner: "{{ matrix_user_username }}"
     group: "{{ matrix_user_username }}"
-  when: matrix_well_known_matrix_server_enabled
+  when: matrix_well_known_matrix_server_enabled|bool
 
 - name: Ensure Matrix /.well-known/matrix/server file deleted
   file:
     path: "{{ matrix_static_files_base_path }}/.well-known/matrix/server"
     state: absent
-  when: "not matrix_well_known_matrix_server_enabled"
+  when: "not matrix_well_known_matrix_server_enabled|bool"