add ci

.drone.yml

@@ -0,0 +1,22 @@
+# 345678911234567892123456789312345678941234567895123456789612345678971234567898
+kind: pipeline
+name: build-and-upload
+
+steps:
+- name: build-and-push
+  image: plugins/docker
+  network_mode: bridge
+  settings:
+    repo: sneak/builder
+    custom_dns: [ 116.202.204.30 ]
+    tags:
+      - ${DRONE_COMMIT_SHA}
+      - ${DRONE_BRANCH}
+      - latest
+- name: notify
+  image: plugins/slack
+  settings:
+    webhook:
+      from_secret: SLACK_WEBHOOK_URL
+  when:
+    event: pull_request