Matrix: Replace nginx with caddy

coreos-config/roles/compose_project/templates/matrix/Caddyfile

@@ -0,0 +1,12 @@
+{
+  auto_https off
+}
+
+http://{{ matrix.baseurl }} {
+  header {
+    Content-Type application/json
+    Access-Control-Allow-Origin *
+  }
+  respond /.well-known/matrix/client "{\"m.homeserver\": {\"base_url\": \"https://synapse.{{ matrix.baseurl }}\"} }" 200
+  respond /.well-known/matrix/server "{\"m.server\": \"synapse.{{ matrix.baseurl }}:443\"}" 200
+}

coreos-config/roles/compose_project/templates/matrix/docker-compose.yaml

@@ -61,12 +61,11 @@ services:
       timeout: 5s
       retries: 5
 
-  nginx:
-    # FIXME: This could be caddyv2
-    image: nginx:stable
-    restart: unless-stopped
+  caddy:
+    image: caddy:2
     volumes:
-      - ./nginx-well-known.conf:/etc/nginx/conf.d/matrix.conf:ro,Z
+      - ./Caddyfile:/etc/caddy/Caddyfile:ro,z
+    restart: unless-stopped
     labels:
       - "traefik.enable=true"
       - "traefik.http.routers.matrix-well-known.rule=Host(`{{ matrix.baseurl }}`) && PathPrefix(`/.well-known/matrix/`)"

coreos-config/roles/compose_project/templates/matrix/nginx-well-known.conf

@@ -1,15 +0,0 @@
-server {
-    listen 80;
-    server_name {{ matrix.baseurl }};
-    location /.well-known/matrix/client {
-        return 200 '{"m.homeserver": {"base_url": "https://synapse.{{ matrix.baseurl }}"} }';
-        default_type application/json;
-        add_header Access-Control-Allow-Origin *;
-    }
-    location /.well-known/matrix/server {
-        return 200 '{"m.server": "synapse.{{ matrix.baseurl }}:443" }';
-        default_type application/json;
-        add_header Access-Control-Allow-Origin *;
-    }
-}
-