Category
Development Tools
Level
Intermediate
Number
43
Containers and Docker play a crucial role in enhancing cyber security by providing isolation and consistency for applications.
Containers → like Docker, act as virtual compartments for applications, keeping them isolated from each other. This isolation prevents cyber attacks from spreading across a system, limiting their impact.
comparison between containers and VM as an example:
- Containers:
- Containers are like individual rooms within the house.
- Each room (container) can have its own setup, decorations, and activities.
- If something goes wrong or messy in one room, it doesn't affect the other rooms much.
- VM:
- VM is like having separate houses (virtual machines) within your property.
- Each house (VM) is fully equipped with its own kitchen, living room, and bedroom.
- If there's a problem or a mess in one house, it doesn't affect the other houses at all.
Docker is a platform that allows you to develop, deploy, and run applications using containerization
- Containerization: Docker isolates applications in self-contained units called containers.
- Docker file: Developers specify application settings in a Docker file.
- Image Creation: Docker builds images based on Docker file instructions → executable package that contains everything needed to run a specific application, including the code, dependencies, libraries
- Container Launch: Users start containers from images using Docker.
- Management: Docker handles container operations like starting, stopping, and removing them.
Summary:
- Containers offer isolation, minimizing the impact of security breaches.
- Docker enables the creation of portable container images for secure deployments.
- Containers are like rooms in a house, offering isolation for different activities within the same environment.
- VM is like having separate houses, providing complete isolation for different environments within the same property.