feat: add native Mercure support

Dockerfile

@@ -109,13 +109,16 @@ CMD ["php-fpm"]
 FROM caddy:${CADDY_VERSION}-builder-alpine AS symfony_caddy_builder
 
 RUN xcaddy build \
-	--with github.com/dunglas/mercure/caddy@main \
+    --with github.com/dunglas/mercure/caddy@main \
     --with github.com/dunglas/vulcain/caddy
 
 FROM caddy:${CADDY_VERSION} AS symfony_caddy
 
 WORKDIR /srv/app
 
+# Mercure UI
+# TODO: add an option to Mrcure to set the path to static files
+#COPY --from=dunglas/mercure:v0.11 /srv/public /srv/public/
 COPY --from=symfony_caddy_builder /usr/bin/caddy /usr/bin/caddy
 COPY --from=symfony_php /srv/app/public public/
 COPY docker/caddy/Caddyfile /etc/caddy/Caddyfile

docker-compose.yml

@@ -17,7 +17,8 @@ services:
     environment:
       # Run "composer require symfony/orm-pack" to install and configure Doctrine ORM
       DATABASE_URL: postgresql://${POSTGRES_USER:-symfony}:${POSTGRES_PASSWORD:-ChangeMe}@database:5432/${POSTGRES_DB:-app}?serverVersion=${POSTGRES_VERSION:-13}
-      MERCURE_PUBLISH_URL: https://localhost/.well-known/mercure
+      # Run "composer require symfony/mercure-bundle" to install and configure the Mercure integration
+      MERCURE_PUBLISH_URL: ${MERCURE_URL:-http://caddy/.well-known/mercure}
       SYMFONY_VERSION:
 
   caddy:
@@ -26,6 +27,9 @@ services:
       target: symfony_caddy
     environment:
       SERVER_NAME: ${SERVER_NAME:-localhost}
+      # Change these keys keys in production
+      MERCURE_PUBLISHER_JWT: ${MERCURE_PUBLISHER_JWT:-!ChangeMe!}
+      MERCURE_SUBSRIBER_JWT: ${MERCURE_SUBSRIBER_JWT:-!ChangeMe!}
     restart: unless-stopped
     ports:
       - "80:80"

docker/caddy/Caddyfile

@@ -2,12 +2,24 @@
     experimental_http3
 }
 
-{$SERVER_NAME}
+{$SERVER_NAME}, caddy:80
 
 log
 
 route {
     root * /srv/app/public
+    mercure {
+        # Enable the demo endpoint (you should disable it in production!)
+        #demo
+        # Publisher JWT key
+        publisher_jwt {$MERCURE_PUBLISHER_JWT}
+        # Subscriber JWT key
+        subscriber_jwt {$MERCURE_SUBSRIBER_JWT}
+        # Allow anonymous subscribers (double-check that it's what you want)
+        anonymous
+        # Enable the subscription API (double-check that it's what you want)
+        subscriptions
+    }
     vulcain
     push
     php_fastcgi php:9000

docs/extra-services.md

@@ -6,4 +6,5 @@ the recipe will automatically modify the `Dockerfile` and `docker-compose.yml` t
 The currently supported packages are:
 
 * `symfony/orm-pack`: install a PostgreSQL service
+* `symfony/mercure-bundle`: use the Mercure.rocks module shipped with Caddy
 * `symfony/messenger`: install a RabbitMQ service