Step 1: Uninstall Old Versions (if any)

sudo apt remove docker docker-engine docker.io containerd runc

Step 2: Update Packages and Install Dependencies

sudo apt update
sudo apt install -y ca-certificates curl gnupg lsb-release

Step 3: Add Docker’s Official GPG Key

sudo install -m 0755 -d /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
sudo chmod a+r /etc/apt/keyrings/docker.gpg

Step 4: Add 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

Step 5: Install Docker Engine

sudo apt update
sudo apt install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

Step 6: Verify Docker Installation

Check the version:

docker --version

Run the test image:

sudo docker run hello-world

You should see a message saying “Hello from Docker!”

(Optional) Step 7: Run Docker Without sudo

To avoid typing sudo for every command:

sudo usermod -aG docker $USER
newgrp docker

Then test:

docker ps

✅ Done! You now have Docker Engine, Docker Compose, and Buildx installed and ready to use on Ubuntu.

The post Install Docker on Ubuntu appeared first on ServerGigabit Network.

The post Install Docker on Ubuntu appeared first on ServerGigabit Network.