Docker For Java Developer : Create Docker Image for Spring Boot Application - Dockerizing

Docker For Java Developer : Create Docker Image for Spring Boot Application - Dockerizing

Containers have emerged as the preferred means of packaging an application with all the software and operating system dependencies and then shipping that across to different environments.

This article looks at different ways of containerizing a Spring Boot application:

building a Docker image using a Docker file,
building an OCI image from source code with Cloud-Native Buildpack,
and optimizing the image at runtime by splitting parts of the JAR into different layers using layered tools.


We will start with the container terminologies used throughout the article:

Container image: a file with a specific format. We convert our application into a container image by running a build tool.

Container: the runtime instance of a container image.

Container engine: the daemon process responsible for running the Container.

Container host: the host machine on which the container engine runs.

Container registry: the shared location that is used for publishing and distributing the container image.

OCI Standard: the Open Container Initiative (OCI) is a lightweight, open governance structure formed under the Linux Foundation.
The OCI Image Specification defines industry standards for container image formats and runtimes to ensure that all container engines can run container images produced by any build tool.

The good news is that you can save a lot of time when starting out experimenting with a new technology, because you can use an image prepared by someone else, without understanding the details immediately. Once you are up for some more complex stuff you can start adding to the knowledge that you can extract and learn from other people’s Dockerfiles.




1# https://youtu.be/tTjmvz2uQX8
2# https://youtu.be/qEnrinjT7eI
3# https://youtu.be/Zmu2aUhG_3k
4# https://youtu.be/o9eFu30s1Og
5# https://youtu.be/9eR7R76IzhE
6# https://youtu.be/6z_iLgO0ols
7# https://youtu.be/xKYLhwGATQo
8# https://youtu.be/R1YuMrqhNec
9# https://youtu.be/pBbMcBWksJQ
10# https://youtu.be/90BEDV7MeOM

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