K3s Kubernetes Deploy

This skill appears to implement a working K3s deployment but is sloppy and potentially unsafe in places — treat it as suspicious until you review and harden it: - Don't pass plaintext passwords on the command line. Prefer SSH key-based auth or at least SSHPASS via secure environment variables, and avoid storing passwords in shell history or using unsecured process arguments. - Inspect the scripts locally before running. Pay attention to lines that write /tmp/k3s-token.txt, modify kubeconfigs, create /etc/cni files, and run curl https://get.k3s.io. These reveal or expose cluster credentials. - The package declares no required tools but the scripts require ssh/sshpass/scp, curl, docker/containerd, kubectl and systemctl — ensure those exist and that use of sshpass is acceptable in your environment. - The scripts change kubeconfig addresses (attempts to replace 127.0.0.1 with 0.0.0.0 and $host). Verify and correct that behavior so you don't accidentally expose the API server to all interfaces. - Run the deployment first in an isolated test environment (throwaway VMs) to validate behavior and to see exactly what files are created and what network connections are made (image registries, get.k3s.io). - After a successful run, rotate any tokens/credentials that were generated or exposed and remove temporary files like /tmp/k3s-token.txt. Limit access to generated kubeconfigs and store them securely. - Consider using a vetted deployment tool or implementing SSH key auth and vault-backed secrets in place of passing passwords. If you need help auditing or hardening the scripts, review the exact lines that use sshpass, echo/piping of passwords, and kubeconfig edits. Confidence note: the issues look like sloppy/insecure engineering rather than explicit malicious behavior, but the combination of undeclared credential use, plaintext passwords, and token exposure justifies caution.