Kubernetes is not included in the default repositories. Then repeat the previous command to install the signing keys. If you get an error that curl is not installed, install it with: sudo apt-get install curlĢ. Enter the following to add a signing key: curl -s | sudo apt-key add Since you are downloading Kubernetes from a non-standard repository, it is essential to ensure that the software is authentic. Install Kubernetes Step 3: Add Kubernetes Signing Key To start Docker if it’s not running: sudo systemctl start dockerģ. Verify Docker is running: sudo systemctl status docker Set Docker to launch at boot by entering the following: sudo systemctl enable dockerĢ. Check the installation (and version) by entering the following: docker ––version Step 2: Start and Enable Dockerġ. Repeat the process on each server that will act as a node.Ĥ. Next, install Docker with the command: sudo apt-get install docker.ioģ.