chore(services): improve configuration for local and production

* Set `pull_policy`
* On production:
  * Enable `watch` rebuild
  * Set for 2 hosts
  * Expose on `caddy`

docker-compose.yml

@@ -13,6 +13,7 @@ services:
       target: builder
       args:
         BUILD_MIX_ENV: dev
+    pull_policy: never
     init: true
     restart: unless-stopped
     hostname: slax
@@ -39,14 +40,27 @@ services:
     image: 'joaodubas/slax:${SLAX_PROD_TAG:-prod}'
     build:
       context: .
+    pull_policy: never
     init: true
     restart: unless-stopped
     hostname: slax-prod-local
     networks:
+      - default
       - upstream
+    develop:
+      watch:
+        - path: .
+          action: rebuild
+    scale: 2
     environment:
       DATABASE_URL: 'postgresql://postgres:postgres@database:5432/slax'
       SECRET_KEY_BASE: '${SLAX_PROD_SECRET_KEY_BASE:-LkNDN0Rt87ElBj2FEQGNtsdqCjkBxgOFrxh/I7OYg4ZY8uzAgKtKnRMEHnt+5SSF}'
+    labels:
+      caddy: ${SLAX_DOMAIN:-slax-prod.dubas.lan}
+      caddy.0_import: base_config
+      caddy.1_import: tls_config
+      caddy.2_reverse_proxy: '{{ upstreams http 4000 }}'
+      caddy.2_reverse_proxy.import: proxy_headers_config
     profiles:
       - production
     entrypoint: sleep