avoid unnecessary nested content

bootstrap/docker-compose.yml

@@ -0,0 +1,15 @@
+name: bootstrap
+
+services:
+  portainer:
+    hostname: portainer
+    image: portainer/portainer-ce
+    command: >
+      --admin-password-file /run/secrets/portainer_password
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock
+      - /var/packages/ContainerManager/var/docker/volumes/:/var/lib/docker/volumes/
+      - ${NASCOMPOSE_SERVICES?}/bootstrap/volumes/portainer_data/:/data/
+      # Secrets
+      - ${NASCOMPOSE_SERVICES?}/bootstrap/secrets/portainer_password:/run/secrets/portainer_password:ro
+    restart: unless-stopped