Add Dockerfile for yat · Pull Request !11 · openGauss/Yat

```shell
docker build -t teslacn/yat:latest . && docker run --rm -i -t teslacn/yat:latest
```

```
wuweijie in ~/projects/Yat on master ● ● ● λ docker build -t teslacn/yat:latest . && docker run --rm -i -t teslacn/yat:latest        
Sending build context to Docker daemon  28.65MB
Step 1/8 : FROM python:3.6-slim
 ---> c1e40b69532f
Step 2/8 : WORKDIR /root
 ---> Using cache
 ---> 2a7e1803556d
Step 3/8 : COPY yat-master/pkg yat
 ---> Using cache
 ---> 466b6b0d5863
Step 4/8 : RUN cd yat && chmod +x install && ./install -F
 ---> Using cache
 ---> 93d4489971d4
Step 5/8 : COPY --from=openjdk:11-jre-slim /usr/local/openjdk-11 /usr/local/openjdk-11
 ---> Using cache
 ---> aa3d56b2e137
Step 6/8 : ENV JAVA_HOME=/usr/local/openjdk-11
 ---> Using cache
 ---> 874d6324e125
Step 7/8 : ENV PATH=$JAVA_HOME/bin:$PATH
 ---> Using cache
 ---> cec99def5797
Step 8/8 : ENTRYPOINT ["yat"]
 ---> Using cache
 ---> b1a12ffb3342
Successfully built b1a12ffb3342
Successfully tagged teslacn/yat:latest
Usage: yat [OPTIONS] COMMAND [ARGS]...

Yat is yet another test framework

yat suite [run|init|mkschd|bkfill] [-d /path/to/suite/dir]
      [-s /path/to/schedule.schd] [--color] [-m mode]
  yat schedule -s /path/to/schedule.ys
  yat backup [-d /path/to/suite/dirs] -b /path/to/backup/path [-m mode]
  yat cleanup [-d /path/to/suite/dirs]
  yat check [-s /path/to/check] [-d <report dest describe>]
  yat export [-s /path/to/check] [-d <report dest describe>]
  yat playbook [run|bkfill|gen] [-p /path/to/playbook.xls[x]]
  yat collect [-d /path/to/collect] [-o /path/to/output/dir]

type yat [sub command] --help for more help information.

Options:
  --help  Show this message and exit.

Commands:
  backup    Backup last running result
  check     Checking test cases
  cleanup   Cleanup all the suites in given directory
  collect   Collect all result of suite to one
  export    Export the test case information to dest
  info      Show current yat system information
  playbook  Yat playbook manager and runner
  schedule  Schedule shell or test suite from schedule file
  script    Invoke script in yat script directory
  services  Generate yat report with specific format
  suite     Test suite manager
  upload    Upload test results to report center
  version   Print version message
```

类型	指派人员	状态
审查		已完成 (0/0)
测试		已完成 (0/0)