Creating Docker Images With Spring Boot

In Spring Boot 2.3, a new feature was added that enables you to create Docker Images from your application using Cloud Native Buildpacks. This is really valuable because you can now create an immutable artifact that ensures that your application is run in an identical environment from your laptop, to your test environment, to production. Now imagine if you could get that same level of consistency during actual development as well. In this video, Ben Hale shows you how to use Spring Boot DevTools, the framework for doing in-process refreshing of Spring Boot applications to quickly iterate within a consistent container when developing locally.

[infitium]

Previously, I had to write scipts for each application then start the pipeline bla bla... you get the point. I am thankful to you guys. Great Job!!!

[ViktorGamov]

What kind of sorcerery is it😜?
Great work, guys!

[dominikseljan]

This is pretty amazing. Great work guys!

[shivamrajput]

This is so much awesome we can test our application in test and production similiar to our laptop so we have atleast same of consistency during dev
Great works guys 😊👍🏻

[jef-]

Had no idea about dev tools. That's awesome. Thanks for the video! I'd be interested to see the differences on creating a Dockerfile vs using this new Spring Docker Build.

[RajeshSamson]

How to create an image when we have some extra dependencies like JPA, Messaging etc... Is there any utility to create something like docker-compose using this plugin.

[philsmart]

Benefits over a runnable jar with mutable, externalised config?

[prasannakumar-kxuw]

do we need to have docker installed in our pc to build a docker

[tuoan]

Hi, I have a question is
Why the docker image so big ? I just build a small app with some dependencies (spring security, cloud, jpa, liquibase, log4j2, ..), and the docker image is 300MB @@!
beside that, jar file just 60MB
Did I make something wrong ? Do we have any way to build a docker image with a smaller size ?

[jawin]

What could be the default configuration of docker and how can we customize that

[broovka]

Is there any docker compose integration to restart the service after build? Or it will just work by default?

[RajeshSamson]

How to set the exclude devtools option with Gradle??

[everchristi]

i get this error

Step 2/4 : ARG JAR_FILE=target/*.jar
---> Running in d282ba096f92
Removing intermediate container d282ba096f92
---> 7cb43248a488
Step 3/4 : COPY ${JAR_FILE} app.jar
COPY failed: no source files were specified

any idea how to solve it?

[azulamazigh]

what does the secret do and the argument for remote spring app (file watcher)?!!

[alpercezibarak]

But, is it possible to debug your code with IntelliJ when using docker container in local?

[Yena_]

doesn't work on windows 10, running build-image returns error : [INFO] I/O exception caught when processing request to {}->docker://localhost:2376: \\.\pipe\docker_engine (The system cannot find the file specified)

[kamalhm-dev]

What keyboard shortcut u use to rebuild the app?

[jinxblaze]

Get mapping / hello is the hello world of spring boot xD

[avchitov]

Goodbye immutable code for specific version. Think twice if you want to use it for non-dev environment