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Wednesday, January 08, 2020

Docker - Docker Image and Container in Simple terms

Simplified explanation based on my understanding of the images and containers.

Docker Image -
           Is a package consisting of the File System Snapshot and Start-Up Command.

Docker Container - 
           Is a process or group of processes with a set of hardware and software resources required to process them.
The resources required can be something like a Kernel, System Process, RAM, HDD, CPU, Installed application.

Eg:

              

Process can be a simple shell script invoking a java class, which will invoke the class file stored on HDD through JVM installed on the same HDD.

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