Install and run an FTP server using Docker

To install and run an FTP server using Docker, follow these steps. We’ll use the popular stilliard/pure-ftpd image, which is a lightweight and widely used FTP server.

Step 1: Install Docker

Make sure Docker is installed on your machine. If it isn’t, install it using the instructions below:

  • Ubuntu/Debian: 

    sudo apt update
sudo apt install docker.io -y

  • Mac: Install Docker Desktop from Docker's website.

  • Windows: Install Docker Desktop from Docker's website.

Verify Docker is installed:

docker --version

Step 2: Pull the FTP Server Docker Image

Use the stilliard/pure-ftpd image, which is a simple and effective FTP server.

docker pull stilliard/pure-ftpd

Step 3: Run the FTP Server

Run the FTP server container using the following command:

docker run -d --name ftp-server \
  -p 21:21 -p 30000-30009:30000-30009 \
  -e FTP_USER_NAME=testuser \
  -e FTP_USER_PASS=testpass \
  -e FTP_USER_HOME=/home/testuser \
  stilliard/pure-ftpd

Explanation:

  • -d: Runs the container in detached mode (in the background).
  • --name ftp-server: Names the container ftp-server.
  • -p 21:21: Maps port 21 on the host to port 21 in the container (FTP control port).
  • -p 30000-30009:30000-30009: Opens a range of ports for passive mode FTP.
  • -e FTP_USER_NAME=testuser: Creates an FTP user named testuser.
  • -e FTP_USER_PASS=testpass: Sets the password for the user as testpass.
  • -e FTP_USER_HOME=/home/testuser: Sets the home directory for the FTP user.
  • stilliard/pure-ftpd: The Docker image to use.

Step 4: Verify the FTP Server

To check if the FTP server is running, use:

docker ps

You should see the ftp-server container listed. If it’s running correctly, you can try connecting to it using an FTP client like FileZilla or ftp from the command line.

Step 5: Test the FTP Connection

You can connect to the FTP server using a command-line FTP client:

ftp localhost 21
  • Username: testuser
  • Password: testpass

You should be able to log in and access the home directory /home/testuser.

Optional: Stop and Remove the FTP Server Container

To stop the container:

docker stop ftp-server

To remove the container:

docker rm ftp-server

That’s it! You now have an FTP server running using Docker.

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