add ci file

.drone.yml

@@ -0,0 +1,16 @@
+kind: pipeline
+name: default
+
+setps:
+  - name: build image
+    image: plugin/docker
+    settings:
+      registry: docker.mtfos.xyz
+      repo: docker.mtfos.xyz/mtfos/aws-ddns
+      tags:
+        - latest
+        - ${DRONE_COMMIT}
+
+trigger:
+  branch:
+    - master

README.md

@@ -0,0 +1,3 @@
+## Golang AWS DDNS Service
+
+[![Build Status](https://ci.trj.tw/api/badges/golang/go-ddns-svc/status.svg)](https://ci.trj.tw/golang/go-ddns-svc)