Passing env variables to DOCKER Spring Boot
The easiest (and probably the best way) to do it via environment variable in a docker container:
SPRING_PROFILES_ACTIVE=dev,swaggerUPDATE:
In order to set environment variables to docker, you do not need to modify Dockerfile. Just build your docker image and then run it with the env variables set:
docker run your-docker-container -e SPRING_PROFILES_ACTIVE='dev,swagger' -p 8080:8080
In the .Dockerfile file:
ENTRYPOINT [ "sh", "-c", "java -Dspring.profiles.active=**${ENV}** -Djava.security.egd=file:/dev/./urandom -jar /app.jar" ]And while running the docker:
docker run --env ENV=*local* -d -p 8080:8080 <*image id*>This way, the environment variable gets local as value and passes to Dockerfile when we bring up a container.
Update
You can also do like
ENTRYPOINT ["java","-jar", "-Dspring.profiles.active=${ENV} -Djava.security.egd=file:/dev/./urandom","app.jar"]and while docker image
docker run --env ENV=local -d -p 8080:8080 <*image id*>