add traefik support

templates/blockchain/0/docker-compose.yml

@@ -33,6 +33,9 @@ services:
     - bc-logs:/tmp/wsy_blockchain
     tty: true
     labels:
+      traefik.frontend.rule: Host:${host_url}
+      traefik.port: '80'
+      traefik.enable: 'true'
       io.rancher.container.pull_image: always
   bc-db:
     image: registry.cn-hangzhou.aliyuncs.com/weisanyun/mysql:5.6