What is a docker?
Docker is a tool that lets you build, run and ship the application irrespective of which platform or operating system you use. Let's take the real-world scenario.
Tester 🤷🏻♂️: This feature is not working on my machine 😤.
Developer 🧑🏻💻: It is working on my machine 😭 !
Docker 🐳: Hold on guys, I am here to help you 😎.
The above scenario is faced by all the developers and testers in all organizations. Like the person docker 🐳 said, the docker can easily address this scenario 💯.
Alternate for docker: Virtual machine.
Limitations of the virtual machine 👎🏻:
- Slow to start
- Resource intensive
- Need licensed OS
- Lack of hardware resources.
Advantages of docker over virtual machines 🤞🏻:
- No need for a full Operating system
- Lightweight.
- Starts quickly
- Need lesser hardware resources.
- Allows multiple apps.
Docker cheatsheet (Bonus) 🫶🏻:
Courtesy: https://dockerlabs.collabnix.com