Spring Boot Docker Deployment Steps

Spring Boot Docker Deployment Steps

Pre requisite:

  • Install Java.
sudo yum install java-1.8.0
sudo yum remove java-1.7.0-openjdk

  • Install Maven
sdk install maven

Note: SDKMan can be used to install the maven.

Spring Boot Jar – Docker Deployment Steps:

Step 1: Create some folder in your linux machine.[create build folder inside /var]

Step 2: Docker deployment file creation

Create the below content as Dockerfile: [Filename: Dockerfile without any extension and must be available in “/var/build” path]

FROM openjdk:8-jdk-alpine
COPY yourjarname-1.0 yourjarname.jar
ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/yourjarname.jar"]

Here yourjarname-1.0 is assumed like the original file name which is created from spring boot and yourjarname.jar is the one you would like to rename it.

Step 3: Put the above created docker file and your spring boot jar in same folder. [/var/build]

Now Dockerfile and yourjarname.jar file available in /var/build path.


Step 4: Remove the existing container if any

Not needed if you are doing first time, needed if you want to deploy from second time.

sudo docker rm -f yourdockercontainername || true


Step 5: Docker build command

sudo docker build -t yourjarname /var/build/


Step 6: Running Docker Container of Your Jar

#define your port below
sudo docker run -d --name yourjardockercontainername -p 8443:8443 -t yourjarname

Here yourjardockercontainername can be used to see the logs of your spring boot jar file.


docker logs yourjardockercontainername.


Docker useful commands for Beginners:

You can also find other useful docker commands here.

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About Mirthbees 679 Articles
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