feat: assets API draft

Signed-off-by: İspik <ispik@ispik.dev>

Cargo.toml

@@ -8,6 +8,7 @@ members = [
     "crates/services/*",
     "crates/daemons/*",
 ]
+exclude = ["crates/services/assets"]
 
 [patch.crates-io]
 redis23 = { package = "redis", version = "0.23.3", git = "https://github.com/revoltchat/redis-rs", rev = "523b2937367e17bd0073722bf6e23d06042cb4e4" }

compose.yml

@@ -86,3 +86,11 @@ services:
     network_mode: "host"
     volumes:
       - ./livekit.yml:/etc/livekit.yml
+
+  assets:
+    build: ./crates/services/assets
+    ports:
+      - "14707:14707"
+    volumes:
+      - ./assets-custom:/srv/assets/custom
+    restart: unless-stopped

crates/services/assets/Caddyfile

@@ -0,0 +1,35 @@
+{
+	admin off
+	auto_https off
+}
+
+:14707 {
+	encode gzip zstd
+
+	route {
+		header Access-Control-Allow-Origin *
+		header Cache-Control "public, max-age=86400"
+
+		respond /health 200
+
+		# Serve from custom/ first if the file exists there, so
+		# self-hosters can add new assets or override shipped ones
+		# just by dropping a file at the same relative path.
+		@custom {
+			file {
+				root /srv/assets/custom
+				try_files {http.request.uri.path}
+			}
+		}
+		handle @custom {
+			root * /srv/assets/custom
+			file_server
+		}
+
+		# Fall back to the assets baked into the image.
+		handle {
+			root * /srv/assets/default
+			file_server
+		}
+	}
+}

crates/services/assets/Dockerfile

@@ -0,0 +1,15 @@
+FROM caddy:2-alpine
+
+# Baked-in default assets, shipped inside the image.
+COPY default /srv/assets/default
+
+# Self-hosters override this path with a volume mount to add or replace
+# assets without rebuilding the image
+COPY custom /srv/assets/custom
+
+COPY Caddyfile /etc/caddy/Caddyfile
+
+EXPOSE 14707
+
+HEALTHCHECK --interval=30s --timeout=3s \
+  CMD wget -qO- http://localhost:14707/health || exit 1