Redeploying Stateless Systems in Lieu of Patching
summary
Automated redeployment replaces monthly patching of stateless on‑prem VMs by rebuilding from updated Nutanix Packer images and reapplying Terraform via Private Terraform Enterprise, reducing drift and making collectors fungible. The reusable GitLab CI pipeline uses a config.json, Vault-supplied secrets, pre/health/post Python hooks, and a taint + targeted apply sequence (download workspace Terraform binary, taint VM, plan/confirm/apply) to recreate VMs while preserving names, IPs, DNS, AD and monitoring. End‑to‑end runs take about 20 minutes per trio.
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chapters (7)
- 0:00Intro
- 0:32Updating On-Premises Stateless Virtual Machines
- 2:15Packer Base Images for Nutanix
- 3:16Petco's Terraform for On-Premises Deployments
- 10:17Petco's Redeployment Framework
- 13:55Redeployment - BYO Scripts
- 18:45Redeployment Journey
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