How to install Docker on Ubuntu

Docker lets you run applications in containers. Fast, portable, and efficient.

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Requirements

• Linux VPS/Dedicated Server

• SSH + sudo

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Step 1: Remove old versions

sudo apt remove docker docker.io containerd runc -y

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Step 2: Install dependencies

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

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Step 3: Add Docker repo

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker.gpg

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Step 4: Install Docker

sudo apt install docker-ce docker-ce-cli containerd.io -y

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Step 5: Start Docker

sudo systemctl start docker
sudo systemctl enable docker

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Step 6: Test

docker run hello-world

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Step 7: Run without sudo

sudo usermod -aG docker $USER
newgrp docker

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Basic commands

Run container:

docker run -d -p 8080:80 nginx

List:

docker ps

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Done 🐳

Docker is ready!