FROM maven:3.6.3-openjdk-8-slim AS build
WORKDIR /usr/app
COPY . /usr/app
RUN mvn clean package -Dmaven.test.skip=true

FROM openjdk:8-jre-alpine
COPY --from=build /usr/app/target/*.jar /app.jar
EXPOSE 8080
ENTRYPOINT ["java","-jar","/app.jar"]

## Docker images를 생성합니다.
[root@workspace-vm reactive-link-shortener-sample-app]# docker build -t reactor-demo:1.0 .
Sending build context to Docker daemon  25.35MB
Step 1/4 : FROM openjdk:8-jdk-alpine
8-jdk-alpine: Pulling from library/openjdk
bdf0201b3a05: Pull complete 
9e12771959ad: Pull complete 
018b76c3c533: Pull complete 
Digest: sha256:ced4c16db19a0c7a813bb33ba379b7f7fdf48ce096c57750eb911b4bd928ffa9
Status: Downloaded newer image for openjdk:8-jdk-alpine
 ---> ece449e0acb8
Step 2/4 : COPY target/*.jar app.jar
 ---> 274a6f613050
Step 3/4 : EXPOSE 8080
 ---> Running in b540382aa918
Removing intermediate container b540382aa918
 ---> f2236a423d06
Step 4/4 : ENTRYPOINT ["java","-jar","/app.jar"]
 ---> Running in 508bf9cdfdaf
Removing intermediate container 508bf9cdfdaf
 ---> cb99c11f4409
Successfully built cb99c11f4409
Successfully tagged reactor-demo:1.0
[root@workspace-vm reactive-link-shortener-sample-app]# docker images
REPOSITORY                    TAG                 IMAGE ID            CREATED             SIZE
reactor-demo                  1.0                 cb99c11f4409        10 seconds ago      130MB
openjdk                       8-jdk-alpine        ece449e0acb8        12 hours ago        105MB
redis                         latest              a55fbf438dfd        5 weeks ago         95MB
quay.io/testcontainers/ryuk   0.2.2               527073eb32d1        15 months ago       9.31MB
redis                         4.0.2               8f2e175b3bd1        18 months ago       107MB
[root@workspace-vm reactive-link-shortener-sample-app]# 

## Docker image tag를 추가 합니다.
[root@workspace-vm reactive-link-shortener-sample-app]# docker tag reactor-demo:1.0 sooabia/reactor-demo:1.0
[root@workspace-vm reactive-link-shortener-sample-app]# docker images
REPOSITORY                    TAG                 IMAGE ID            CREATED              SIZE
reactor-demo                  1.0                 cb99c11f4409        About a minute ago   130MB
sooabia/reactor-demo          1.0                 cb99c11f4409        About a minute ago   130MB
openjdk                       8-jdk-alpine        ece449e0acb8        12 hours ago         105MB
redis                         latest              a55fbf438dfd        5 weeks ago          95MB
quay.io/testcontainers/ryuk   0.2.2               527073eb32d1        15 months ago        9.31MB
redis                         4.0.2               8f2e175b3bd1        18 months ago        107MB

## Docker hub에 push 합니다.
[root@workspace-vm reactive-link-shortener-sample-app]# docker login
Login with your Docker ID to push and pull images from Docker Hub. If you don't have a Docker ID, head over to https://hub.docker.com to create one.
Username: sooabia
Password: 
WARNING! Your password will be stored unencrypted in /root/.docker/config.json.
Configure a credential helper to remove this warning. See
https://docs.docker.com/engine/reference/commandline/login/#credentials-store

Login Succeeded
[root@workspace-vm reactive-link-shortener-sample-app]# 
[root@workspace-vm reactive-link-shortener-sample-app]# docker push sooabia/reactor-demo:1.0
The push refers to repository [docker.io/sooabia/reactor-demo]
db9c523483cf: Pushed 
560e8fc5dfa2: Mounted from library/openjdk 
dee6aef5c2b6: Layer already exists 
a464c54f93a9: Layer already exists 
1.0: digest: sha256:1451d515475d33654038a8f95e37ed39b834f0b162de86876ea15718741f6828 size: 1159
[root@workspace-vm reactive-link-shortener-sample-app]# 

## Docker 이미지로 어플리케이션 실행
[root@workspace-vm reactive-link-shortener-sample-app]# docker run -d -p 80:8080 --link redis sooabia/reactor-demo:1.0
4cef1da580aad24a586f307b31a54a202912617d09f7996777b7b2fc56dfe717
[root@workspace-vm reactive-link-shortener-sample-app]# 

## 어플리케이션 호출
[root@workspace-vm reactive-link-shortener-sample-app]# curl -XPOST http://localhost/link -H "Content-Type: application/json" -d "{\"link\":\"http://wiki.iisanse.com\"}"
{"shortenedLink":"gjCiOz"}

## Docker container 정리
[root@workspace-vm reactive-link-shortener-sample-app]# docker rm $(docker ps -a | awk '{print$1}') --force
4cef1da580aa
8ebd440fdd83
[root@workspace-vm reactive-link-shortener-sample-app]# docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES