Files
home-network-k3s-impl/infra
jakman85andClaude Opus 4.8 216bea2a16 tofu: move secrets into committed SOPS/age file + tf.sh wrapper
Replace the gitignored plaintext infra/tofu/.r2.env and backend.hcl with a
single committed, SOPS/age-encrypted dotenv (secrets.sops.env) plus a thin
wrapper (tf.sh), so tofu runs with no manual secret entry and secrets live
encrypted in git like the repo's other secrets.

- .sops.yaml: creation rule encrypting infra/tofu/secrets.sops.env (all values)
  to the existing age recipient.
- secrets.sops.env: encrypted, PLACEHOLDER values only. Holds R2 S3 keys, the
  state-encryption passphrase (TF_STATE_PASSPHRASE scalar), and the Proxmox API
  token/endpoint. Operator fills real values via `sops`.
- tf.sh: sops exec-env decrypts the dotenv, exports PROXMOX_VE_*/AWS_*, builds
  the multi-line TF_ENCRYPTION HCL from TF_STATE_PASSPHRASE, and runs tofu
  (injecting -backend-config=backend.r2.hcl on init). Proxmox token stays env-only,
  never a tofu variable/state.
- backend.r2.hcl: committed non-secret R2 bucket/key/endpoint (account id is not
  a credential), passed to `tofu init`.
- Retire .r2.env/backend.hcl(.example): drop the committed templates; keep the
  gitignore lines as a safety net for leftover local plaintext.
- Update backend.tf/README/REMOTE-STATE for the new day-2 flow and DR story
  (repo + age key is sufficient).

Verified: placeholder file round-trips sops -e/-d with the repo age key; tf.sh
exports the expected VAR NAMES and builds valid TF_ENCRYPTION HCL (stub tofu, no
real plan/secrets).

Co-Authored-By: Claude Opus 4.8 <[email protected]>
2026-08-27 19:07:52 -05:00
..

infra/ — node provisioning and the toolchain

OpenTofu (Proxmox VE) + cloud-init + Ansible bring up the 3-node k3s/Cilium dev cluster. Spec: ../home-network-k3s/docs/02-environments-and-provisioning.md.

Path What
tofu/ The "Create" stage: 3 cloud-init'd VMs on the Proxmox box (bpg/proxmox provider)
cloud-init/ First-boot baseline shipped as a Proxmox user-data snippet
ansible/ The "Baseline"/"Configure" stages: k3s HA, Cilium, kube-vip, the VPN egress gateway
devcontainer/ The pinned toolchain (tofu, ansible, sops, age, flux, kubectl, helm and the whole CI gate toolchain)
cluster.sh RETIRED — drove the old libvirt VMs; does not work against Proxmox
PHASE1-STATUS.md Current state of the cluster and how to reconnect to it
PHASE1-SCOPE.md Historical Phase-1 scoping doc (libvirt era — superseded)

Where the cluster actually lives

The dev cluster is not on this workstation. It runs on a Proxmox VE host; the nodes sit on the Proxmox LAN and are reached across a pfSense NAT:

Nodes k3s-dev-1/2/3 at 192.168.1.50/.51/.52 — 6 vCPU, 16 GiB, Debian 12, k3s v1.31.5
kube-API kube-vip VIP 192.168.1.49:6443, reached from the workstation via NAT 192.168.2.50:6443
Node SSH pfSense NAT 192.168.2.102:2250/2251/2252 → node :22 (Ansible only)
Ingress VIP 192.168.1.53 (Cilium L2, shared Gateway); .53–.60 reserved for LB VIPs

The earlier libvirt/KVM cluster on 10.73.0.0/24 is retired. Any doc or command referencing virsh, qemu:///system, or 10.73.0.x for the cluster is historical.