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Docker on VPS — From Installation to Running Containers Print

  • docker, vps, containers, gratisvps
  • 8506

Docker allows you to run applications in isolated containers on your VPS. It’s lightweight, scalable, and perfect for deploying apps without breaking your system.

Step 1: Update Your VPS

Before installing Docker, make sure your VPS is up to date:

 
sudo apt update && sudo apt upgrade -y

Install required dependencies:

 
sudo apt install apt-transport-https ca-certificates curl software-properties-common -y

Step 2: Install Docker

  1. Add Docker’s official repository:

 
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add - sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" sudo apt update

  1. Install Docker:

 
sudo apt install docker-ce -y

  1. Start and enable Docker:

 
sudo systemctl enable docker sudo systemctl start docker

  1. Verify installation:

 
docker --version

Step 3: Manage Docker as a Non-Root User

Add your user to the Docker group so you don’t need sudo for every command:

 
sudo usermod -aG docker $USER

Log out and back in for changes to take effect.

Test with:

 
docker run hello-world

You should see a confirmation that Docker is working.

Step 4: Run Your First Container

Let’s run a simple Nginx container:

 
docker run -d -p 80:80 --name mynginx nginx

  • -d runs in detached mode

  • -p 80:80 maps VPS port 80 to container port 80

  • --name mynginx names the container

Check running containers:

 
docker ps

Open your VPS IP in a browser — you should see the Nginx welcome page.

Step 5: Managing Containers

  • Stop a container:

 
docker stop mynginx

  • Start a container:

 
docker start mynginx

  • Remove a container:

 
docker rm mynginx

  • Remove all stopped containers and unused images to save space:

 
docker system prune -f

✅ Tips & Best Practices

  • Use Docker Compose for multi-container apps.

  • Regularly clean unused images and volumes to avoid filling your VPS storage.

  • Consider mounting persistent storage for data-heavy containers.

  • Always monitor container CPU and memory usage:

 
docker stats

With Docker on your VPS, you can run isolated apps, quickly deploy websites, APIs, databases, or even full development environments without breaking your VPS.

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