Use IPv4 localhost everywhere (or almost everywhere)

group_vars/matrix-servers

@@ -167,7 +167,7 @@ matrix_mxisd_systemd_wanted_services_list: |
 matrix_nginx_proxy_enabled: true
 
 matrix_nginx_proxy_proxy_matrix_client_api_addr_with_container: "{{ 'matrix-corporal:41080' if matrix_corporal_enabled else 'matrix-synapse:8008' }}"
-matrix_nginx_proxy_proxy_matrix_client_api_addr_sans_container: "{{ 'localhost:41080' if matrix_corporal_enabled else 'localhost:8008' }}"
+matrix_nginx_proxy_proxy_matrix_client_api_addr_sans_container: "{{ '127.0.0.1:41080' if matrix_corporal_enabled else '127.0.0.1:8008' }}"
 matrix_nginx_proxy_proxy_matrix_client_api_client_max_body_size_mb: "{{ matrix_synapse_max_upload_size_mb }}"
 
 matrix_nginx_proxy_proxy_matrix_enabled: true
@@ -175,15 +175,15 @@ matrix_nginx_proxy_proxy_riot_enabled: "{{ matrix_riot_web_enabled }}"
 
 matrix_nginx_proxy_proxy_matrix_corporal_api_enabled: "{{ matrix_corporal_enabled and matrix_corporal_http_api_enabled }}"
 matrix_nginx_proxy_proxy_matrix_corporal_api_addr_with_container: "matrix-corporal:41081"
-matrix_nginx_proxy_proxy_matrix_corporal_api_addr_sans_container: "localhost:41081"
+matrix_nginx_proxy_proxy_matrix_corporal_api_addr_sans_container: "127.0.0.1:41081"
 
 matrix_nginx_proxy_proxy_matrix_identity_api_enabled: "{{ matrix_mxisd_enabled }}"
 matrix_nginx_proxy_proxy_matrix_identity_api_addr_with_container: "matrix-mxisd:8090"
-matrix_nginx_proxy_proxy_matrix_identity_api_addr_sans_container: "localhost:8090"
+matrix_nginx_proxy_proxy_matrix_identity_api_addr_sans_container: "127.0.0.1:8090"
 
 matrix_nginx_proxy_proxy_synapse_metrics: "{{ matrix_synapse_metrics_enabled }}"
 matrix_nginx_proxy_proxy_synapse_metrics_addr_with_container: "matrix-synapse:{{ matrix_synapse_metrics_port }}"
-matrix_nginx_proxy_proxy_synapse_metrics_addr_sans_container: "localhost:{{ matrix_synapse_metrics_port }}"
+matrix_nginx_proxy_proxy_synapse_metrics_addr_sans_container: "127.0.0.1:{{ matrix_synapse_metrics_port }}"
 
 matrix_nginx_proxy_proxy_matrix_user_directory_search_enabled: "{{ matrix_mxisd_enabled }}"
 matrix_nginx_proxy_proxy_matrix_user_directory_search_addr_with_container: "{{ matrix_nginx_proxy_proxy_matrix_identity_api_addr_with_container }}"

roles/matrix-nginx-proxy/defaults/main.yml

@@ -25,19 +25,19 @@ matrix_nginx_proxy_proxy_matrix_hostname: "{{ hostname_matrix }}"
 # Controls whether proxying for the matrix-corporal API (`/_matrix/corporal`) should be done (on the matrix domain)
 matrix_nginx_proxy_proxy_matrix_corporal_api_enabled: false
 matrix_nginx_proxy_proxy_matrix_corporal_api_addr_with_container: "matrix-corporal:41081"
-matrix_nginx_proxy_proxy_matrix_corporal_api_addr_sans_container: "localhost:41081"
+matrix_nginx_proxy_proxy_matrix_corporal_api_addr_sans_container: "127.0.0.1:41081"
 
 # Controls whether proxying for the User Directory Search API (`/_matrix/client/r0/user_directory/search`) should be done (on the matrix domain).
 # This can be used to forward the API endpoint to another service, augmenting the functionality of Synapse's own User Directory Search.
 # To learn more, see: https://github.com/kamax-matrix/mxisd/blob/master/docs/features/directory.md
 matrix_nginx_proxy_proxy_matrix_user_directory_search_enabled: false
 matrix_nginx_proxy_proxy_matrix_user_directory_search_addr_with_container: "matrix-mxisd:8090"
-matrix_nginx_proxy_proxy_matrix_user_directory_search_addr_sans_container: "localhost:8090"
+matrix_nginx_proxy_proxy_matrix_user_directory_search_addr_sans_container: "127.0.0.1:8090"
 
 # Controls whether proxying for the Identity API (`/_matrix/identity`) should be done (on the matrix domain)
 matrix_nginx_proxy_proxy_matrix_identity_api_enabled: false
 matrix_nginx_proxy_proxy_matrix_identity_api_addr_with_container: "matrix-mxisd:8090"
-matrix_nginx_proxy_proxy_matrix_identity_api_addr_sans_container: "localhost:8090"
+matrix_nginx_proxy_proxy_matrix_identity_api_addr_sans_container: "127.0.0.1:8090"
 
 # Controls whether proxying for metrics (`/_synapse/metrics`) should be done (on the matrix domain)
 matrix_nginx_proxy_proxy_synapse_metrics: false
@@ -47,7 +47,7 @@ matrix_nginx_proxy_proxy_synapse_metrics_basic_auth_key: ""
 # The addresses where the Matrix Client API is.
 # Certain extensions (like matrix-corporal) may override this in order to capture all traffic.
 matrix_nginx_proxy_proxy_matrix_client_api_addr_with_container: "matrix-synapse:8008"
-matrix_nginx_proxy_proxy_matrix_client_api_addr_sans_container: "localhost:8008"
+matrix_nginx_proxy_proxy_matrix_client_api_addr_sans_container: "127.0.0.1:8008"
 # This needs to be equal or higher than the maximum upload size accepted by Synapse.
 matrix_nginx_proxy_proxy_matrix_client_api_client_max_body_size_mb: 25
 

roles/matrix-nginx-proxy/templates/nginx/conf.d/matrix-riot-web.conf.j2

@@ -12,7 +12,7 @@ server {
 			proxy_pass http://$backend;
 		{% else %}
 			{# Generic configuration for use outside of our container setup #}
-			proxy_pass http://localhost:{{ matrix_ssl_lets_encrypt_certbot_standalone_http_port }};
+			proxy_pass http://127.0.0.1:{{ matrix_ssl_lets_encrypt_certbot_standalone_http_port }};
 		{% endif %}
 	}
 
@@ -47,7 +47,7 @@ server {
 			proxy_pass http://$backend;
 		{% else %}
 			{# Generic configuration for use outside of our container setup #}
-			proxy_pass http://localhost:8765;
+			proxy_pass http://127.0.0.1:8765;
 		{% endif %}
 
 		proxy_set_header Host $host;

roles/matrix-nginx-proxy/templates/nginx/conf.d/matrix-synapse.conf.j2

@@ -12,7 +12,7 @@ server {
 			proxy_pass http://$backend;
 		{% else %}
 			{# Generic configuration for use outside of our container setup #}
-			proxy_pass http://localhost:{{ matrix_ssl_lets_encrypt_certbot_standalone_http_port }};
+			proxy_pass http://127.0.0.1:{{ matrix_ssl_lets_encrypt_certbot_standalone_http_port }};
 		{% endif %}
 	}
 
@@ -110,7 +110,6 @@ server {
 		{% else %}
 			{# Generic configuration for use outside of our container setup #}
 			proxy_pass http://{{ matrix_nginx_proxy_proxy_matrix_client_api_addr_sans_container }};
-			resolver 127.0.0.1 ipv6=off;
 		{% endif %}
 
 		proxy_set_header Host $host;

roles/matrix-synapse/tasks/ext/mautrix-telegram/setup.yml

@@ -102,7 +102,7 @@
         	proxy_pass http://$backend;
         {% else %}
         	{# Generic configuration for use outside of our container setup #}
-        	proxy_pass http://localhost:8080;
+        	proxy_pass http://127.0.0.1:8080;
         {% endif %}
         }