installdocker ubuntu

docker.md

Installing Docker on Ubuntu can be done in a few ways, but the most common and recommended method is through Docker's official apt repository. Here's a breakdown of the process, combining key information from the search results:

Installation Using the Apt Repository:

This method ensures you get the latest stable version and simplifies future updates. Here's a step-by-step guide:

• 1. Update the package index and install necessary packages:
  • sudo apt-get update
  • sudo apt-get install ca-certificates curl gnupg
• 2. Add Docker's official GPG key:
  • sudo install -m 0755 -d /etc/apt/keyrings
  • sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
  • sudo chmod a+r /etc/apt/keyrings/docker.asc
• 3. Set up the Docker repository:
  • echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
• 4. Update the package index again:
  • sudo apt-get update
• 5. Install Docker Engine:
  • sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
• 6. Verify the installation:
  • sudo docker run hello-world

Important Notes:

• These instructions are for installing Docker Engine. There is also Docker Desktop for linux, which is an application that provides a GUI, and other tools.
• It is important to keep your system updated.
• It is also good practice to add your user to the docker group so that you do not have to use sudo every time you run a docker command.

I hope this helps.