docker

Docker Training Course for the Absolute Beginner Course | KodeKloud

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Docker Basic Commands | KodeKloud
Delete all containers from the Docker Host.

docker rm -f $(docker ps -aq)

Delete the ubuntu Image.

docker rmi ubuntu

You are required to pull a docker image which will be used to run a container later. Pull the image nginx:1.14-alpine

docker pull nginx:1.14-alpine

Run a container with the nginx:1.14-alpine image and name it webapp

docker run -d --name webapp nginx:1.14-alpine

• docker run: Command to create and start a new container.
• -d: Runs the container in detached mode (in the background).
• --name webapp: Assigns the name webapp to the container.
• nginx:1.14-alpine: Specifies the image and tag to use for the container.
  Cleanup: Delete all images on the host

  docker rmi -f $(docker images -aq)

  In Docker commands, -aq is a combination of options that can be used with certain Docker commands like docker ps and docker images. Here’s what each option means:
• -a: This stands for “all.” It lists all items, not just the default filtered view. For example:
  • With docker ps -a, it lists all containers (both running and stopped).
  • With docker images -a, it lists all images, including intermediate images used in builds.
• -q: This stands for “quiet” mode. It only outputs the IDs, rather than the full details.
  • With docker ps -q, it lists only the container IDs.
  • With docker images -q, it lists only the image IDs.
    When combined as -aq:
• docker ps -aq: Lists only the IDs of all containers.
• docker images -aq: Lists only the IDs of all images.

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