Create a Dockerfile and add the following contents.
FROM openjdk:11
LABEL AUTHOR="shahzeb"
ARG BUILD_FILE=target/pos-1.0.jar
COPY ${BUILD_FILE} pos.jar
ENTRYPOINT [ "java", "-jar", "/pos.jar" ]
EXPOSE 8080
To build the docker image, run the following command.
docker build -t [docker image name] .
docker build -t shahzeb/pos .
To run the container from the image created from above command, run the following command
docker run -p 8080:8080 shahzeb/pos --network=host
docker container run --network pos-app-env --name pos-app -p 8080:8080 -d shahzeb/pos
The --network parameter is use to connect the spring boot application to the mysql database on the host machine. Since we are already using the EXPORT 8080 for exposing the port. we can skip passing -p 8080:8080 to the docker run command.
docker network create [network name.] #Create a network on which the app will run
docker network create pos-app-env
docker container run --network [netowrk name] --name [container name] -p 8080:8080 -d [docker image name]
docker container run --network pos-app-env --name mysql -p 3306:3306 -e MYSQL_ROOT_PASSWORD=str0ng -d mysql:8.0
# Running pos in docker environment
To run the application in docker env, run the following 4 commands.
Create a network in docker
docker network create pos-app-env
Start MySQL in same network
docker container run --network pos-app-env --name mysql -p 3306:3306 -e MYSQL_ROOT_PASSWORD=str0ng -d mysql:8.0
Build Docker Image container POS app
docker build -t shahzeb/pos .
Run Container for the app
docker container run --network pos-app-env --name pos-app -p 8080:8080 -d shahzeb/pos
Using docker-compose file.
version: '3.9'
services:
mysqldb:
image: mysql:8.0
ports:
- "3306:3306"
networks:
- pos-app-env
environment:
- MYSQL_ROOT_PASSWORD=str0ng
- MYSQL_DATABASE=pos
restart: always
healthcheck:
test: [ "CMD", "mysqladmin", "ping", "-h", "localhost" ]
timeout: 20s
retries: 10
pos-app:
image: shahzeb/pos
ports:
- "8080:8080"
networks:
- pos-app-env
depends_on:
- mysqldb
networks:
pos-app-env:
