--- title: VirtualBox description: "Creating Talos Kubernetes cluster using VurtualBox VMs." --- In this guide we will create a Kubernetes cluster using VirtualBox. ## Video Walkthrough To see a live demo of this writeup, visit Youtube here: ## Installation ### How to Get VirtualBox Install VirtualBox with your operating system package manager or from the [website](https://www.virtualbox.org/). For example, on Ubuntu for x86: ```bash apt install virtualbox ``` ### Install talosctl You can download `talosctl` via [github.com/talos-systems/talos/releases](https://github.com/talos-systems/talos/releases) ```bash curl https://github.com/talos-systems/talos/releases/download//talosctl-- -L -o talosctl ``` For example version `v0.13.0` for `linux` platform: ```bash curl https://github.com/talos-systems/talos/releases/latest/download/talosctl-linux-amd64 -L -o talosctl sudo cp talosctl /usr/local/bin sudo chmod +x /usr/local/bin/talosctl ``` ### Download ISO Image In order to install Talos in VirtualBox, you will need the ISO image from the Talos release page. You can download `talos-amd64.iso` via [github.com/talos-systems/talos/releases](https://github.com/talos-systems/talos/releases) ```bash mkdir -p _out/ curl https://github.com/talos-systems/talos/releases/download//talos-.iso -L -o _out/talos-.iso ``` For example version `v0.13.0` for `linux` platform: ```bash mkdir -p _out/ curl https://github.com/talos-systems/talos/releases/latest/download/talos-amd64.iso -L -o _out/talos-amd64.iso ``` ## Create VMs Start by creating a new VM by clicking the "New" button in the VirtualBox UI: Supply a name for this VM, and specify the Type and Version: Edit the memory to supply at least 2GB of RAM for the VM: Proceed through the disk settings, keeping the defaults. You can increase the disk space if desired. Once created, select the VM and hit "Settings": In the "System" section, supply at least 2 CPUs: In the "Network" section, switch the network "Attached To" section to "Bridged Adapter": Finally, in the "Storage" section, select the optical drive and, on the right, select the ISO by browsing your filesystem: Repeat this process for a second VM to use as a worker node. You can also repeat this for additional nodes desired. ## Start Control Plane Node Once the VMs have been created and updated, start the VM that will be the first control plane node. This VM will boot the ISO image specified earlier and enter "maintenance mode". Once the machine has entered maintenance mode, there will be a console log that details the IP address that the node received. Take note of this IP address, which will be referred to as `$CONTROL_PLANE_IP` for the rest of this guide. If you wish to export this IP as a bash variable, simply issue a command like `export CONTROL_PLANE_IP=1.2.3.4`. ## Generate Machine Configurations With the IP address above, you can now generate the machine configurations to use for installing Talos and Kubernetes. Issue the following command, updating the output directory, cluster name, and control plane IP as you see fit: ```bash talosctl gen config talos-vbox-cluster https://$CONTROL_PLANE_IP:6443 --output-dir _out ``` This will create several files in the `_out` directory: controlplane.yaml, worker.yaml, and talosconfig. ## Create Control Plane Node Using the `controlplane.yaml` generated above, you can now apply this config using talosctl. Issue: ```bash talosctl apply-config --insecure --nodes $CONTROL_PLANE_IP --file _out/controlplane.yaml ``` You should now see some action in the VirtualBox console for this VM. Talos will be installed to disk, the VM will reboot, and then Talos will configure the Kubernetes control plane on this VM. > Note: This process can be repeated multiple times to create an HA control plane. ## Create Worker Node Create at least a single worker node using a process similar to the control plane creation above. Start the worker node VM and wait for it to enter "maintenance mode". Take note of the worker node's IP address, which will be referred to as `$WORKER_IP` Issue: ```bash talosctl apply-config --insecure --nodes $WORKER_IP --file _out/worker.yaml ``` > Note: This process can be repeated multiple times to add additional workers. ## Using the Cluster Once the cluster is available, you can make use of `talosctl` and `kubectl` to interact with the cluster. For example, to view current running containers, run `talosctl containers` for a list of containers in the `system` namespace, or `talosctl containers -k` for the `k8s.io` namespace. To view the logs of a container, use `talosctl logs ` or `talosctl logs -k `. First, configure talosctl to talk to your control plane node by issuing the following, updating paths and IPs as necessary: ```bash export TALOSCONFIG="_out/talosconfig" talosctl config endpoint $CONTROL_PLANE_IP talosctl config node $CONTROL_PLANE_IP ``` ### Bootstrap Etcd Set the `endpoints` and `nodes`: ```bash talosctl --talosconfig talosconfig config endpoint talosctl --talosconfig talosconfig config node ``` Bootstrap `etcd`: ```bash talosctl --talosconfig talosconfig bootstrap ``` ### Retrieve the `kubeconfig` At this point we can retrieve the admin `kubeconfig` by running: ```bash talosctl --talosconfig talosconfig kubeconfig . ``` You can then use kubectl in this fashion: ```bash kubectl get nodes ``` ## Cleaning Up To cleanup, simply stop and delete the virtual machines from the VirtualBox UI.