Add docker build

.drone.yml

@@ -1,5 +1,5 @@
 kind: pipeline
-name: lint
+name: lint and build
 
 steps:
 - name: pylint
@@ -19,3 +19,16 @@ steps:
   image: validator/validator:latest
   commands:
   - vnu static/*.html
+
+- name: build image
+  image: docker:stable
+  environment:
+    DOCKER_HOST: tcp://docker:2375
+  commands:
+  - docker build -t kleph/beer .
+
+services:
+  - name: docker
+    image: docker:dind
+    command: [ "--storage-driver=vfs", "--tls=false" ]
+    # privileged: true

README.md

@@ -1,2 +1,3 @@
 # beer
+Build status: [![Build Status](https://drone.kleph.eu/api/badges/kleph/beer/status.svg)](https://drone.kleph.eu/kleph/beer)