Docker Tutorial for Beginners | Install and Learn Docker in 20minutes! Docker Ubuntu
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00:00:45 Installing Docker from the Default Ubuntu Repository (providing a simpler installation)
a: Update the Repository
sudo apt update
b: Install Docker
sudo apt install docker.io -y
c: Install Dependencies
sudo snap install docker
d: Check Installation
sudo systemctl status docker
docker --version
00:04:30 Remove Docker:
for pkg in docker.io docker-doc docker-compose podman-docker containerd runc; do sudo apt-get remove $pkg; done
00:05:00 Installing Docker from the Official Docker Repository (ensuring the latest Docker version)
a: Update the Package Repository
sudo apt update
b: Install Prerequisite Packages
sudo apt install apt-transport-https ca-certificates curl software-properties-common -y
c: Add GPG Key
curl -fsSL https://download.docker.com/linux/ubu... | sudo apt-key add -
d: Add Docker Repository
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
e: Specify Installation Source
apt-cache policy docker-ce
f: Install Docker
sudo apt install docker-ce -y
g: Check Installation
sudo systemctl status docker
docker --version
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00:08:40 How to Work With Docker
00:09:25 Working With Docker Images
Docker images are the base for building Docker containers. The images are located on Docker Hub, which is a Docker repository. The repository allows all users to host their images on Docker hub, resulting in many images to choose from, including applications and Linux distributions.
Search for Docker Images
Search for available images on Docker Hub using the docker search command.
sudo docker search [keyword]
Pull a Docker Image
sudo docker pull [image-name]
See Downloaded Images
sudo docker images
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00:12:05 Working With Docker Containers
A Docker container is an isolated virtual environment created from a Docker image. Use an image you previously downloaded or specify its name in the docker run command to automatically download the image and create a container.
Run a Docker Container
sudo docker run [image-name]
Note: To obtain interactive shell access to the container, specify the -i and -t switches.
View Docker Containers
An active Docker container is a container that is currently running. Listing containers is useful as it outputs the unique ID and name required when starting, stopping, or removing a container.
sudo docker ps
Note: To list all containers, including the inactive ones, add the -a flag.
Start a Docker Container
sudo docker start [container-ID | container-name]
Stop a Docker Container
sudo docker stop [container-ID | container-name]
Remove a Docker Container
sudo docker rm [container-ID | container-name]
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00:19:40 Working With Docker Volumes
A Docker volume is a filesystem mechanism allowing users to preserve data generated and used by Docker containers. The volumes ensure data persistence and provide a better alternative to persisting data in a container's writable layer because they don't increase the Docker container size.
Create a Docker Volume
sudo docker volume create [volume_name]
Remove a Docker Volume
sudo docker volume rm [volume_name]
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