support build docker images (#358)

* add docker build file

* add host to avoid host check error

* Revert "add host to avoid host check error"

This reverts commit a0b8507895.

.dockerignore

@@ -0,0 +1,2 @@
+node_modules
+npm-debug.log

Dockerfile

@@ -0,0 +1,15 @@
+FROM node:alpine
+
+ENV NPM_CONFIG_LOGLEVEL info
+
+WORKDIR /usr/src/app
+
+COPY package*.json ./
+
+RUN npm install
+
+COPY . .
+
+EXPOSE 8080
+CMD ["yarn", "dev"]
+