Install Docker on Linux/Ubuntu

gistfile1.txt

### **Install Docker on Linux/Ubuntu**  

🔹 **Step 1: Add Docker's official GPG key**  
```bash
sudo apt-get update
sudo apt-get install -y ca-certificates curl gnupg
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 2: Add the Docker repository to Apt sources**  
```bash
echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] \
https://download.docker.com/linux/ubuntu $(. /etc/os-release && echo $VERSION_CODENAME) stable" | \
sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
sudo apt-get update
```

🔹 **Step 3: Install Docker**  
```bash
sudo apt-get install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
```

🔹 **Step 4: Verify Installation**  
```bash
sudo docker run hello-world
```

Now, **Docker is installed** and ready to use! 🚀