diff --git a/.gitignore b/.gitignore
index fe585680..2f0b1f75 100644
--- a/.gitignore
+++ b/.gitignore
@@ -114,3 +114,5 @@ kubeconfig_remote
 
 .cache
 .pytest_cache
+
+workspace/
diff --git a/.travis.yml b/.travis.yml
index e37ff360..6ed1e5cd 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -56,10 +56,11 @@ jobs:
     - docker-compose -f docker-compose.etcd-volume.yml up -d
     - docker-compose -f docker-compose.etcd-volume.yml exec etcd etcdctl mkdir /travis/
     - docker-compose -f docker-compose.etcd-volume.yml exec etcd etcdctl set /travis/commit $TRAVIS_COMMIT
-    - docker-compose -f docker-compose.etcd-volume.yml exec etcd etcdctl backup --data-dir /0.etcd/ --backup-dir /root/backup/
+    - docker-compose -f docker-compose.etcd-volume.yml exec etcd etcdctl backup --data-dir /*.etcd/ --backup-dir /root/backup/
     - docker-compose -f docker-compose.etcd-volume.yml stop
     - docker-compose -f docker-compose.etcd-volume.yml rm -fv
-    - sed -i 's/#//g' docker-compose.etcd-volume.yml
+    # restore and verify
+    - export ETCD_DATA_DIR=/root/backup ETCD_FORCE_NEW_CLUSTER=1
     - docker-compose -f docker-compose.etcd-volume.yml up -d
     - docker-compose -f docker-compose.etcd-volume.yml exec etcd etcdctl ls --recursive /travis/
     - |
diff --git a/docker-compose.auth.yml b/docker-compose.auth.yml
index 95456bb9..4f5cffdc 100644
--- a/docker-compose.auth.yml
+++ b/docker-compose.auth.yml
@@ -1,4 +1,4 @@
-version: '2'
+version: '3.2'
 services:
   ldap:
     image: osixia/openldap
diff --git a/docker-compose.demo.yml b/docker-compose.demo.yml
index d20a738c..64841ad4 100644
--- a/docker-compose.demo.yml
+++ b/docker-compose.demo.yml
@@ -1,4 +1,4 @@
-version: '2'
+version: '3.2'
 services:
   api:
     image: kqueen/api:v0.18
diff --git a/docker-compose.etcd-volume.yml b/docker-compose.etcd-volume.yml
index 5f88d591..b2eb4921 100644
--- a/docker-compose.etcd-volume.yml
+++ b/docker-compose.etcd-volume.yml
@@ -1,19 +1,18 @@
-version: '2'
+version: '3.2'
 networks:
   default:
     driver: bridge
     ipam:
       driver: default
       config:
-        - subnet: 172.16.238.0/24
-          gateway: 172.16.238.1
+        -
+          # your docker env subnet
+          subnet: 172.16.254.0/24
 services:
   etcd:
     image: quay.io/coreos/etcd:latest
     ports:
       - 127.0.0.1:4001:4001
-    volumes:
-      - /tmp/backup/:/root/backup/
     environment:
       ETCD_NAME: 0
       ETCD_INITIAL_ADVERTISE_PEER_URLS: http://etcd:2380
@@ -22,5 +21,16 @@ services:
       ETCD_LISTEN_CLIENT_URLS: http://0.0.0.0:4001
       ETCD_LISTEN_PEER_URLS: http://0.0.0.0:2380
       ETCD_ADVERTISE_CLIENT_URLS: http://127.0.0.1:4001,http://etcd:4001
-      #ETCD_DATA_DIR: /root/backup/
-      #ETCD_FORCE_NEW_CLUSTER: 1
+      ETCD_DATA_DIR: ${ETCD_DATA_DIR:-/default.etcd}
+      ETCD_FORCE_NEW_CLUSTER: ${ETCD_FORCE_NEW_CLUSTER:-0}
+
+    volumes:
+      - type: bind
+        source: ./workspace/etcd-data
+        target: /default.etcd
+      #- type: volume
+        #source: etcd-data
+        #target: /default.etcd
+
+volumes:
+  etcd-data:
diff --git a/docker-compose.kubernetes.yml b/docker-compose.kubernetes.yml
index 58b55989..3f22eee8 100644
--- a/docker-compose.kubernetes.yml
+++ b/docker-compose.kubernetes.yml
@@ -1,4 +1,4 @@
-version: '2'
+version: '3.2'
 services:
   apiserver:
     image: gcr.io/google_containers/hyperkube-amd64:v1.9.0
diff --git a/docker-compose.production.yml b/docker-compose.production.yml
index 8ab870e1..995a170e 100644
--- a/docker-compose.production.yml
+++ b/docker-compose.production.yml
@@ -1,4 +1,4 @@
-version: '2'
+version: '3.2'
 services:
   etcd:
     restart: always
diff --git a/docker-compose.yml b/docker-compose.yml
index ad66c7f5..187736a9 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,12 +1,13 @@
-version: '2'
+version: '3.2'
 networks:
   default:
     driver: bridge
     ipam:
       driver: default
       config:
-        - subnet: 172.16.238.0/24
-          gateway: 172.16.238.1
+        -
+          # your docker env subnet
+          subnet: 172.16.254.0/24
 services:
   etcd:
     image: quay.io/coreos/etcd:latest
@@ -20,3 +21,4 @@ services:
       ETCD_LISTEN_CLIENT_URLS: http://0.0.0.0:4001
       ETCD_LISTEN_PEER_URLS: http://0.0.0.0:2380
       ETCD_ADVERTISE_CLIENT_URLS: http://127.0.0.1:4001,http://etcd:4001
+