Docker

-

What is Docker ?


Docker is a tool designed to make it easier to create, deploy, and run applications by using containers. Containers allow a developer to package up an application with all of the parts it needs, such as libraries and other dependencies, and ship it all out as one package.

Benefits of Docker :

  1. Use Docker as version control system for your entire app's operating system .
  2. Use Docker when you want to distribute/collaborate on your app's operating system with a team .
  3. Use Docker to run your code on your laptop in the same environment as you have on your server .
  4. Use Docker whenever your app needs to go through multiple phases of development (dev/test/qa/prod) .
  5. Docker has a central repository of disk images (public and private) that allow you to easily run different operating systems (Ubuntu, Centos, Fedora ) .

Difference between Git and Docker :

Git is a tool to version control your source code.

Docker is a tool to create consistent infrastructure for your web applications, and have that infrastructure easily moved from development machines to testing servers to production servers. It's kind of like moving an entire Virtual Machine from one server to another. Docker uses a technology called LinuxContainers instead of Virtual Machines. This allows you to have predictable environments for your web application wherever it runs.

Difference between Docker and Virtual machines .

Virtual machines have a full OS with its own memory management installed with the associated overhead of virtual device drivers. In a virtual machine, valuable resources are emulated for the guest OS and hypervisor, which makes it possible to run many instances of one or more operating systems in parallel on a single machine (or host). Every guest OS runs as an individual entity from the host system.

On the other hand Docker containers are executed with the Docker engine rather than the hypervisor. Containers are therefore smaller than Virtual Machines and enable faster start up with better performance, less isolation and greater compatibility possible due to sharing of the host’s kernel.

For more information , please check out the below link :





                                                        





Comments

Post a Comment

Please comment

Popular posts from this blog

Israel - Hamas Conflict in 2023

-
Image
An ongoing armed conflict between Palestinian militant groups led by Hamas and Israel began on 7 October 2023, with a coordinated surprise offensive on Israel. The attack began in the morning with a barrage of at least 3,000 rockets launched from the Hamas-controlled Gaza Strip against Israel. When did the first Israel - Palestine war start? The Arab-Israeli War of 1948 broke out when five Arab nations invaded territory in the former Palestinian mandate immediately following the announcement of the independence of the state of Israel on May 14, 1948. What is the story between Israel and Palestine? The conflict at its core is about the self-determination of two peoples living in the same place: Jews and Palestinians both want to control their own futures and both seek the ability to live in peace, freedom, and security. Why is Israel at war with Palestine 2023? There were increases in settler attacks that displaced hundreds of Palestinians; and there were violent clashes around the Al-A
Read more

ICC 2023 World Cup India Schedule

-
Image
  Group Stage Matches of Indian Team Team India Squad Rohit Sharma (c)                                                                                  Hardik Pandya (vc)                                                  Shubman Gill Virat Kohli Shreyas Iyer KL Rahul Ravindra Jadeja                                                                                    Ravichandran Ashwin Shardul Thakur Jasprit Bumrah Mohammed Siraj Kuldeep Yadav Mohammed Shami Ishan Kishan Surya Kumar Yadav                                    
Read more