Enable (Traefik compression middleware)-assisted compression for Cinny, Element & Hydrogen

roles/custom/matrix-client-element/defaults/main.yml

@@ -48,6 +48,11 @@ matrix_client_element_container_labels_traefik_entrypoints: web-secure
 matrix_client_element_container_labels_traefik_tls: "{{ matrix_client_element_container_labels_traefik_entrypoints != 'web' }}"
 matrix_client_element_container_labels_traefik_tls_certResolver: default  # noqa var-naming
 
+# Controls whether a compression middleware will be injected into the middlewares list.
+# This compression middleware is supposed to be defined elsewhere (using labels or a File provider, etc.) and is merely referenced by this router.
+matrix_client_element_container_labels_traefik_compression_middleware_enabled: false
+matrix_client_element_container_labels_traefik_compression_middleware_name: ""
+
 # Controls which additional headers to attach to all HTTP responses.
 # To add your own headers, use `matrix_client_element_container_labels_traefik_additional_response_headers_custom`
 matrix_client_element_container_labels_traefik_additional_response_headers: "{{ matrix_client_element_container_labels_traefik_additional_response_headers_auto | combine(matrix_client_element_container_labels_traefik_additional_response_headers_custom) }}"

roles/custom/matrix-client-element/tasks/validate_config.yml

@@ -4,10 +4,11 @@
   ansible.builtin.fail:
     msg: >
       You need to define a required configuration setting (`{{ item }}`) for using Element Web.
-  when: "vars[item] == ''"
+  when: "item.when | bool and vars[item.name] == ''"
   with_items:
-    - matrix_client_element_default_hs_url
-    - matrix_client_element_container_network
+    - {'name': 'matrix_client_element_default_hs_url', when: true}
+    - {'name': 'matrix_client_element_container_network', when: true}
+    - {'name': 'matrix_client_element_container_labels_traefik_compression_middleware_name', when: "{{ matrix_client_element_container_labels_traefik_compression_middleware_enabled }}"}
 
 - name: Fail if Element location sharing enabled, but no tile server defined
   ansible.builtin.fail:

roles/custom/matrix-client-element/templates/labels.j2

@@ -9,6 +9,10 @@ traefik.http.services.matrix-client-element.loadbalancer.server.port=8080
 
 {% set middlewares = [] %}
 
+{% if matrix_client_element_container_labels_traefik_compression_middleware_enabled %}
+{% set middlewares = middlewares + [matrix_client_element_container_labels_traefik_compression_middleware_name] %}
+{% endif %}
+
 {% if matrix_client_element_container_labels_traefik_path_prefix != '/' %}
 traefik.http.middlewares.matrix-client-element-slashless-redirect.redirectregex.regex=({{ matrix_client_element_container_labels_traefik_path_prefix | quote }})$
 traefik.http.middlewares.matrix-client-element-slashless-redirect.redirectregex.replacement=${1}/