HOWTO: Add a New Environment (QA) to the VLAN Scheme¶
Extends the VLAN scheme with a new isolated environment — demonstrated with a QA VLAN (VLAN 25). Covers gateway subinterface provisioning on Proxmox, Terraform IPAM subnet map extension, QA VM provisioning through the standard VM module, and iptables firewall rules enforcing QA-to-prod isolation with controlled access to dev and staging. The same steps apply to any new environment under ADR-0101.
What this covers:
- VLAN subinterface and gateway provisioning on Proxmox for a new environment
- Terraform IPAM extension with new subnet map entry and allocation blocks
- Inter-VLAN firewall update enforcing QA-to-prod isolation per ADR-0103