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# System prepended metadata

title: Misc Notes

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# Misc Notes

## Docker

- volumes
    - Creates a mapping between physical machine code and container working directory code
- services
    - How many services we want to run
- Dockerfile
    - A Dockerfile is a text document that contains all the commands a user could call on the command line to assemble an image
- depends_on
    - Indicate what this services uses
- Image 
    - A Docker image is a read-only template that contains a set of instructions for creating a container that can run on the Docker platform. It provides a convenient way to package up applications and preconfigured server environments, which you can use for your own private use or share publicly with other Docker users.
- build
    - The docker build command builds Docker images from a Dockerfile and a “context”. A build’s context is the set of files located in the specified PATH or URL.