DOCKER ASSINGMENT
Before this just keep pulling the mysql image using the command
docker pull mysql:5.7
Go inside the spring boot project and give commands like the below mentioned for creating a jar file
eg:
maven clean
maven package -DskipTests
Note: u can see the jar file built in the target classes and give that jar file name in docker file
example:-
FROM openjdk:8-jre-alpine
ADD target/employee-0.0.1-SNAPSHOT.jar employee-0.0.1-SNAPSHOT.jar
EXPOSE 8082
ENTRYPOINT ["java", "-jar", "employee-0.0.1-SNAPSHOT.jar"]
server:
servlet:
context-path: /demo
spring.jpa.hibernate.ddl-auto=update
spring.datasource.url=jdbc:mysql://mysql-docker:3306/demo
spring.datasource.username=root
spring.datasource.password=root123
server.port=8082
jpa:
properties:
hibernate:
dialect: org.hibernate.dialect.MySQL5InnoDBDialect
ddl-auto: update
Note : instead of localhost:3306 mention the docker container name
docker build -t spring-docker .
U can give any name for ur image it will build in that name
Once two images got built now using Docker compose file we are gonna run that two image Create a file docker-compose.yml
version: '3'
services:
mysql-docker:
image: 'mysql:5.7'
environment:
- MYSQL_ROOT_PASSWORD=root123
- MYSQL_PASSWORD=root123
- MYSQL_DATABASE=demo
ports:
- "3307:3306"
springboot-docker-container:
image: spring-docker
ports:
- "8082:8082"
environment:
SPRING_DATASOURCE_URL: jdbc:mysql://mysql-docker:3306/demo?autoReconnect=true&useSSL=false
SPRING_DATASOURCE_USERNAME: "root"
SPRING_DATASOURCE_PASSWORD: "root123"
build:
context: "./"
dockerfile: "dockerfile"
depends_on:
- mysql-docker
Note: mention the two image names and mention your environment respectively
docker-compose -f docker-compose.yml up
or
docker compose up
In the output we can see that jvm started application and tomcat server started at port 8082
When springboot container opened in browser , give as
http://localhost/getall
as u mentioned in ur spring controller project give that pathvariables and see the output the postman output can be shown here
Next step --> go to mysql workbench Add connection Give the hostname and port respective to the things running on mysql container image eg:
Hostname : localhost Port : 3307
Type the password and username u mentioned in docker compose file
Then inside the sql workbench the created database shown
give commands like :
use demo;
select*from employee_details;
demo--> DB name employee_details: table name
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