Creating Docker Image of Spring Boot Application using Buildpacks

• docker

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  Discontinued Docker - the open-source application container engine (by microsoft)

  

  You have created a Spring Boot application. It is working great on your local machine and now, you need to deploy the application somewhere else. On some platforms, you can directly submit the jar file and it will be deployed. At some places, you can spin up a virtual machine, download the source code there, build it, and run it. But, most of the time you will need to deploy the application using containers. Most of the time, Docker is used to build and run the image in a container. Also, when you upload the jar file to some platforms, the application is run inside a container under the hood.

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• Spring Boot

  175 74,726 10.0 Java

  Spring Boot

  

  You have created a Spring Boot application. It is working great on your local machine and now, you need to deploy the application somewhere else. On some platforms, you can directly submit the jar file and it will be deployed. At some places, you can spin up a virtual machine, download the source code there, build it, and run it. But, most of the time you will need to deploy the application using containers. Most of the time, Docker is used to build and run the image in a container. Also, when you upload the jar file to some platforms, the application is run inside a container under the hood.

• Docker Compose

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  Define and run multi-container applications with Docker

  

  But, this is not how images are used in production applications. Docker Compose is used to run and manage multiple docker images.

• pack

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  CLI for building apps using Cloud Native Buildpacks

  

  What if I tell you that you can create a Docker image without creating a Dockerfile? We can build docker images directly from the Gralde or Maven plugin using Cloud Native Buildpacks. Some platforms (like Heroku or Cloud Foundry) use Buildpacks to convert provided jar files into runnable images.

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