diff --git a/Jenkinsfile b/Jenkinsfile
index 7a46844b..0f2b89d7 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -44,7 +44,7 @@ pipeline {
                 sh """
                 cd ./jenkins/${ENV:GIT_BRANCH}
                 docker-compose stop | true
-                docker-compose up -d --scale worker=3
+                docker-compose up -d
                 """
             }
         }
@@ -52,8 +52,10 @@ pipeline {
             steps {
                 echo 'Cleanup...'
                 sh """
-                docker rmi `docker images | grep '<none>' | grep -v IMAGE | awk '{ print \$3 }' | xargs` | true
-                docker rm `docker ps -a | grep Exited | awk '{ print \$1 }' | xargs` | true
+                # remove unused containers
+
+                # remove unused images
+                
                 """
             }
         }
diff --git a/docker_init.sh b/docker_init.sh
index d4f2ee9a..4d571769 100755
--- a/docker_init.sh
+++ b/docker_init.sh
@@ -6,10 +6,19 @@ then
 	:
 else
 	jspath=`ls /app/dist/js/app.*.js`
-	cp ${jspath} ${jspath}.bak
 	sed -i "s?localhost:8000?${CRAWLAB_API_ADDRESS}?g" ${jspath}
 fi
 
+# replace base url
+if [ "${CRAWLAB_BASE_URL}" = "" ];
+then
+	:
+else
+	indexpath=/app/dist/index.html
+	sed -i "s?/js/?${CRAWLAB_BASE_URL}/js/?g" ${indexpath}
+	sed -i "s?/css/?${CRAWLAB_BASE_URL}/css/?g" ${indexpath}
+fi
+
 # start nginx
 service nginx start
 
diff --git a/jenkins/develop/docker-compose.yaml b/jenkins/develop/docker-compose.yaml
index cf466671..ec95ae9f 100644
--- a/jenkins/develop/docker-compose.yaml
+++ b/jenkins/develop/docker-compose.yaml
@@ -4,6 +4,7 @@ services:
     image: "tikazyq/crawlab:develop"
     environment:
       CRAWLAB_API_ADDRESS: "crawlab.cn/dev/api"
+      CRAWLAB_BASE_URL: "/dev"
       CRAWLAB_SERVER_MASTER: "Y"
       CRAWLAB_MONGO_HOST: "mongo"
       CRAWLAB_REDIS_ADDRESS: "redis"
diff --git a/jenkins/master/docker-compose.yaml b/jenkins/master/docker-compose.yaml
index 0bcaee3a..7309829d 100644
--- a/jenkins/master/docker-compose.yaml
+++ b/jenkins/master/docker-compose.yaml
@@ -4,6 +4,7 @@ services:
     image: "tikazyq/crawlab:master"
     environment:
       CRAWLAB_API_ADDRESS: "crawlab.cn/api"
+      CRAWLAB_BASE_URL: "/demo"
       CRAWLAB_SERVER_MASTER: "Y"
       CRAWLAB_MONGO_HOST: "mongo"
       CRAWLAB_REDIS_ADDRESS: "redis"