How to install docker on linux machine
giveitatry

giveitatry @giveitatry

About: Currently learning devops

Joined:
May 1, 2021

How to install docker on linux machine

Publish Date: May 9
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I am documenting my journey in devops

Here is how to install docker on linux machine.

Step-by-Step: Install Docker on Ubuntu

1. Update your packages 

sudo apt-get update
sudo apt-get install -y ca-certificates curl gnupg lsb-release
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2. Add Docker’s official GPG key 

sudo mkdir -p /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | \
  sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
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3. Set up the Docker repository 

echo \
  "deb [arch=$(dpkg --print-architecture) \
  signed-by=/etc/apt/keyrings/docker.gpg] \
  https://download.docker.com/linux/ubuntu \
  $(lsb_release -cs) stable" | \
  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
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4. Update again and install Docker 

sudo apt-get update
sudo apt-get install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
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5. Verify Docker is working 

sudo docker run hello-world
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6. (Optional) Run Docker without sudo 

sudo usermod -aG docker $USER
newgrp docker  # or log out and back in
docker run hello-world
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Comments 1 total

  • giveitatry
    giveitatryMay 9, 2025

    Here is debian version:

    Add Docker's official GPG key:

    sudo apt-get update
    sudo apt-get install ca-certificates curl
    sudo install -m 0755 -d /etc/apt/keyrings
    sudo curl -fsSL download.docker.com/linux/debian/gpg -o /etc/apt/keyrings/docker.asc
    sudo chmod a+r /etc/apt/keyrings/docker.asc

    Add the repository to Apt sources:

    echo \
    "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] download.docker.com/linux/debian \
    $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
    sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
    sudo apt-get update

    apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

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