Uses very less resources comparably to the VMs. Hence, the main purpose of Docker is to package and containerize applications and to ship them and run them anywhere any number of times.ĭocker is OS independent and can run on all platforms. This running instance of an image is called a Docker Container. The applications that you run within the images basically run directly on the host machine. It has a process that runs directly on the OS knowns as Docker Daemon, this is what facilitates and manages the running containers on the system, the Docker Images and all of the Docker Commands as well. You can pull the images from the Docker Hub and start deploying and running your applications on any environment.ĭocker resolves the compatibility matrix issue referred to as ‘ The Matrix from Hell!‘ The containerization of Docker has an infrastructure and an Operating System on top of it but it doesn’t have a Hypervisor like in Virtualization. A Docker Container is nothing but a runtime instance of a Docker Image and these images can also be stored in an online cloud repository called the Docker Hub. The Dockerfile is used to create a Docker Image which is nothing but a template, if we run the same a Docker Container is created.
A developer defines all the necessary dependencies and requirements of an application in a file called a Dockerfile. How Does Docker Work?īefore we hop on to the working of Docker, let us look into the general workflow of Docker. Also, it makes the application simpler to use with less work to develop and easier to maintain and deploy.
#What is kubernetes vs docker compose software#
Docker containers can be deployed to just about any machine without any compatibility issues so the software stays system-agnostic i.e.
#What is kubernetes vs docker compose professional#
