feat: add run casdoor through docker

Signed-off-by: killer <1533063601@qq.com>

README.md

@@ -47,6 +47,18 @@ Backend | RESTful API backend for Casdoor | Golang + Beego + MySQL | https://git
     git clone https://github.com/casbin/casdoor
     ```
 
+## Run through Docker
+- Install Docker and Docker-compose,you see [docker](https://docs.docker.com/get-docker/) and [docker-compose](https://docs.docker.com/compose/install/)
+- vi casdoor/conf/app.conf
+- Modify dataSourceName = root:123@tcp(localhost:3306)/ to dataSourceName = root:123@tcp(db:3306)/
+- Execute the following command
+  ```shell
+  docker-compose up
+  ```
+- Open browser:
+
+  http://localhost:8000/
+
 ## Run (Dev Environment)
 
 - Run backend (in port 8000):

docker-compose.yml

@@ -0,0 +1,19 @@
+version: '3.1'
+services:
+  casdoor:
+    build:
+      context: ./
+      dockerfile: go-dockerfile
+    ports:
+     - 8000:8000
+    depends_on:
+     - db
+  db:
+    restart: always
+    image: mysql:8.0.25
+    ports:
+      - 3306:3306
+    environment:
+      MYSQL_ROOT_PASSWORD: 123
+    volumes:
+      - /usr/local/docker/mysql:/var/lib/mysql

go-dockerfile

@@ -0,0 +1,25 @@
+FROM golang:1.17-rc-buster
+WORKDIR /casdoor
+COPY ./ /casdoor
+RUN go env -w CGO_ENABLED=0 GOPROXY=https://goproxy.io,direct GOOS=linux GOARCH=amd64 \
+    && apt update && apt install sudo \
+    && wget https://nodejs.org/dist/v12.22.0/node-v12.22.0-linux-x64.tar.gz \
+    && sudo tar xf node-v12.22.0-linux-x64.tar.gz \
+    && sudo apt install wait-for-it
+ENV PATH=$PATH:/casdoor/node-v12.22.0-linux-x64/bin
+RUN npm install -g yarn \
+    && cd web \
+    && yarn install \
+    && yarn run build \
+    && rm -rf node_modules \
+    && cd /casdoor \
+    && go build main.go
+FROM alpine:3.7
+COPY --from=0 /casdoor   /
+COPY --from=0 /usr/bin/wait-for-it  /
+RUN set -eux \
+    && sed -i 's/dl-cdn.alpinelinux.org/mirrors.ustc.edu.cn/g' /etc/apk/repositories \
+    && apk update \
+    && apk upgrade \
+    && apk add bash
+CMD ./wait-for-it db:3306 && ./main