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system-design-101/data/guides/how-does-docker-work.md
Kamran Ahmed ee4b7305a2 Adds ByteByteGo guides and links (#106)
This PR adds all the guides from [Visual
Guides](https://bytebytego.com/guides/) section on bytebytego to the
repository with proper links.

- [x] Markdown files for guides and categories are placed inside
`data/guides` and `data/categories`
- [x] Guide links in readme are auto-generated using
`scripts/readme.ts`. Everytime you run the script `npm run
update-readme`, it reads the categories and guides from the above
mentioned folders, generate production links for guides and categories
and populate the table of content in the readme. This ensures that any
future guides and categories will automatically get added to the readme.
- [x] Sorting inside the readme matches the actual category and guides
sorting on production
2025-03-31 22:16:44 -07:00

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How does Docker work? Explore the inner workings of Docker: architecture and key components. https://assets.bytebytego.com/diagrams/0414-how-does-docker-work.png 2024-03-15 false
devops-cicd
Docker
Containers

The diagram below shows the architecture of Docker and how it works when we run “docker build”, “docker pull” and “docker run”.

There are 3 components in Docker architecture:

  • Docker client

    The docker client talks to the Docker daemon.

  • Docker host

    The Docker daemon listens for Docker API requests and manages Docker objects such as images, containers, networks, and volumes.

  • Docker registry

    A Docker registry stores Docker images. Docker Hub is a public registry that anyone can use.

Lets take the “docker run” command as an example.

  • Docker pulls the image from the registry.
  • Docker creates a new container.
  • Docker allocates a read-write filesystem to the container.
  • Docker creates a network interface to connect the container to the default network.
  • Docker starts the container.