Docker

Before Docker

• Development, testing and operatons team works in different environment.
• Due to which different issue arise due to separated way of installation and configurations of the system used by different teams

• The solution to address the above problem is the introduction of Docker. Docker virtualize the application.
• However to run the virtualization, it needs a Hypervisor. The hypervisor is an application which enables us to segregate the hardware resource and provision them to a virtual machine.
• Hypervisor has it’s own tiny linux based operating system.
• Virtual machines are fully isolated and work as an individual system.

What is Docker

• Docker is a open platform for developing, shipping and running application. It enables to separete

• Docker is a container based plateform that makes it easier to build, deploy and run the application.
• Docker uses a client - server model, including components like Docker client, Docker host and Docker registry. Where the client communicates with a background daemon to manage continers, image and others.
• Docker Client communicates with the Docker daemon to execute commands, while the docker host runs container and application.

What is container

• A software package which contains all software dependencies required to run the application.