[DRONE] Rewrite build and publish CI

.drone.yml

@@ -19,10 +19,16 @@ steps:
         from_secret: 'docker_password'
 
     volumes:
-      - /var/run/docker.sock:/var/run/docker.sock
+    - name: 'docker_socket'
+      path: '/var/run/docker.sock'
 
     commands:
-      - 'echo building image ${IMG}'
-      - 'docker login -u ${DOCKER_USER} -p ${DOCKER_PASS} docker.io'
-      - 'docker build -t ${IMG}:v0.9 -t ${IMG}:latest -f Dockerfile.linux.amd64 .'
-      - 'docker push -a'
+    - 'echo building image ${IMG}'
+    - 'docker login -u ${DOCKER_USER} -p ${DOCKER_PASS} docker.io'
+    - 'docker build -t ${IMG}:v0.9 -t ${IMG}:latest -f Dockerfile.linux.amd64 .'
+    - 'docker push -a'
+
+volumes:
+- name: 'docker_socket'
+  host:
+    path: '/var/run/docker.sock'