What is Docker?
- Docker is an container orchestration/management Tools.
- With Docker we can perform various management operations on containers such as create, start, stop, kill, restart. Why Docker?
- Buy creating containers using docker we can
- save cost - hardware requirement is minimal.
- save time - from provisioning to booting to management, the time taken is far less than that taken by VM's or physical machines.
- improve work quality - with the effective utilization of the resources and easy management of containers. What is Container?
- Containers allow us to isolate kernel process and help us to run applications using images.
Docker workflow
- Docker run - docker client - docker daemon - registry docker hub - image is pulled - container is created.
How container created?
- Docker image parts - BOOT FS , ROOT FS , USERS , Applications
- Using the Docker base image, docker initializes namespaces and runs the application
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