K3s Deployment Scenario

Quick Start

Step 1: Generate Your SSH Key

❗ Attention

• Before bringing up the Vagrantfile VMs, make sure to generate an SSH key for secure connections.

ssh-keygen -t rsa -b 4096 -C "[email protected]" -f ~/.ssh/vagrant-k3s-cluster-sample

Step 2: Set Up Vagrant

1. Start your machines:

   vagrant up

   💡 Tip

   • To avoid downloading the Vagrant box every time, you can save the desired box (e.g., ubuntu/jammy64) locally by running:

     vagrant box add ubuntu/jammy64

2. List the available boxes:

   vagrant box list

3. Stop all running machines:

   vagrant halt

4. Destroy your cluster and remove the VMs (including their files):

   vagrant destroy

5. Connect to a specific machine (e.g., node2)

   ssh -i ~/.ssh/vagrant-k3s-cluster-sample [email protected]

Step 3: Configure the Inventory File

1. Navigate to the ansible directory, then generate the inventory file using the following command, provideing the node IP addresses:

   ./inventorygen.py 192.168.33.11 192.168.33.12 192.168.33.13

2. The inventory file will be created under the path inventory. Modify it as needed to suit your specific configuration.