This is a Dockerfile that creates an Alpine-based image with OpenSSH and Python3 installed. It also configures the SSH server to allow root login with an SSH key, and disables password authentication.
It is often necessary to create a test instance of the server to test various scripts and utilities, such as Ansible. To do this quickly and without using virtual machines or cloud servers - you can use this Dockerfile.
You should have Docker installed on your machine before building and running this image.
- To create an SSH key pair with a specific name for the public and private key files, you can use the ssh-keygen command with the -f option to specify the file name. Here's an example:
ssh-keygen -t rsa -b 4096 -f my_key -C "My Key"-
Copy the
my_key.pubfile containing your public key to the same directory as the Dockerfile. -
Build the Docker image using the following command:
docker build -t ssh-alpine .- Run a container using the following command:
docker run -d -p 2222:22 --name ssh-container ssh-alpineThis will start a container named ssh-container and bind port 2222 on the host to port 22 on the container.
- You can now SSH into the container as root using your private key:
ssh -i /path/to/your/private/key -p 2222 root@localhostIf you find any issues with this image or have suggestions for improvements, please feel free to open an issue or pull request on the GitHub repository.
This project is licensed under the MIT License.