Docker is enterprise level container for securely building and sharing the images to be used across any on premises or cloud platform for the deployment. Examples of cloud platforms are Amazon AWS, Microsoft Azure, Google Cloud Platform.

Dockers are somewhat similar to Virtual Machines, but the difference is that instead of creating a operating systems, it helps us in using the same kernel of the linux. We need to add the application code or the

Docker enables us to use the same kernel of linux. We only need to add the build artifacts or the application data in the image.

Docker Images are created while we are running the Continuous Integration of the application.

Docker Images consists of the operating system and works on the virtualization. While working with the Continuous Integration we add our artifacts or the binaries for deployment on to the Docker Images.

Why to use Docker?

Now a days, all the software companies are building a lot of applications. So for the faster delivery, docker enables us to make faster delivery time to market.

Docker helps us in helping to deliver markets without any dependency on the Operating System or any hardware.

Docker enables us to create images that can be used for delivery a lot faster than any other methods.

Docker Compose is a tool for defining and deploying the multi container application.

Compose consists of the following commands that are used for managing the application life cycle:

Start, stop and rebuild services.

Viewing the status of running services.

Log the stream output for logging services.

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