Rafaeldasilvaperes / Docker-learning

A repository to save my progress into learning Docker where I will upload some of my images.

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Learning Docker from the basics!

This repository will be updated with my progress into the Container's World!



Useful commands (used so far)

  • docker ps

    • shows running containers;

  • docker ps -a

    • shows all containers;

  • docker images

    • shows all images (running and stopped);

  • docker tag [imageID] [giveItAName]

    • naming an already built image;

  • docker tag [imageID] [giveItAName]:[butAlsoATag]

    • giving an already existing image a name and a tag;

  • docker build [PATH]

    • if the Dockerfile with your image settings is located in the same path you are, you can use . , else use a path;

  • docker build -t [giveItAName] [PATH]

    • Flag -t (tag) lets you name your image when you are building it;

  • docker build -t [giveItAName]:[butAlsoATag] [PATH]

    • you can not just name it while building it, but also TAG it;

  • docker run [image]

    • creates and starts a new container;

  • docker run -d [image]

    • flag -d (detached) runs a new container without holding the terminal;

  • docker run -p [imagePORT:appPORT] [image]

    • flag -p (port) specifies the port the container will be running. You access localhost:imagePORT and it uses the port you made available in your app;

  • docker run -d -p [imagePORT:appPORT] [image]

    • a combination of the two last commands. It runs an image on a new container on specific port with a free terminal;

  • docker run -d -p [imagePORT:appPORT] --name [giveItAName] [image]

    • you can give a name to your container when creating it. Names should be unique, as IDs;

  • docker stop [container]

    • used to stop the specific container running, use container's ID or its name to stop it;

  • docker start [container]

    • after stopping a container, you can always start it again;

  • docker start -i [container]

    • You can always see your logs or interactively pass commands on the terminal with your --interactive flag;

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A repository to save my progress into learning Docker where I will upload some of my images.


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