add drone ci

.drone.yml

@@ -0,0 +1,15 @@
+kind: pipeline
+type: docker
+name: default
+
+steps:
+  - name: build containers
+    image: ubuntu:20.04
+    environment:
+      DOCKER_HOST: "unix:///var/run/docker.sock"
+    commands:
+      - apt update && apt install -y docker.io make
+      - make containers
+
+
+