### Summary of Changes
- Evaluated `short_sha` inside a bash step (`id: vars`) so Docker
`build-args` receives the expanded short SHA (e.g. `sha-4429a65`) rather
than literal bash code strings.
- Added `- flux-system` to
`ci/k8s/clusters/production/kustomization.yaml` to prevent Flux from
pruning its own `GitRepository` resource during reconciliation.
### Summary of Changes
- Streamlined Ingress TLS and routing rules to focus on
`www.ermnvldmr.com`, `docs.ermnvldmr.com`, and `umami.ermnvldmr.com`
since apex domain is redirected to `www` at the edge.
### Summary of Changes
- Removed `traefik.ingress.kubernetes.io/router.middlewares:
default-redirect-https@kubernetescrd` so Traefik enables HTTP and HTTPS
routing without dropping routers.
### Summary of Changes
- Removed `targetNamespace` from root `cluster-sync` Kustomization so
each application and infrastructure component preserves its own declared
namespace (`com-ermnvldmr`, `cert-manager`, etc.).
### Summary of Changes
- Set `targetNamespace: com-ermnvldmr` in `gotk-sync.yaml` and
`user-data.template.yaml` so application workloads deploy into the
dedicated `com-ermnvldmr` namespace.
### Summary of Changes
1. **SOPS Secret Encryption Scope**:
- Configured `encrypted_regex: '^(data|stringData)$'` in `.sops.yaml`.
- Re-encrypted PostgreSQL and Umami secrets so `apiVersion`, `kind`, and
`metadata.name` remain in clean plaintext.
- Prevents Kustomize controller panic on encrypted metadata during Flux
GitOps reconciliation.
2. **Reliable DNS Fallback**:
- Added standard fallback DNS resolvers (`1.1.1.1`, `8.8.8.8`,
`77.88.8.8`) to `03-cleanup.sh` and `bootstrap-cluster.sh`.
### Summary of Changes
1. **Systemd-Networkd DHCP & Base System**:
- Added `/etc/systemd/network/10-eth.network` with `Name=eth* en*` and
`DHCP=yes`.
- Enabled `systemd-networkd` and `systemd-resolved` so all ethernet
interfaces get DHCP automatically on first boot.
- Added `git` package to base image.
2. **Flux v2 Standalone Installation**:
- Replaced `kubectl apply -k` with standalone `kubectl apply -f
https://github.com/fluxcd/flux2/releases/download/v2.4.0/install.yaml`
so Flux installs in 2 seconds without git dependencies.
3. **Kubectl Access for Non-Root Users**:
- Copies `/etc/rancher/k3s/k3s.yaml` into `/home/<user>/.kube/config`
with `0600` permissions and proper user ownership.
4. **Cluster Kustomization Cleanliness**:
- Removed self-referential `- flux-system` from
`ci/k8s/clusters/production/kustomization.yaml`.
### Summary of Changes
This PR incorporates the final infrastructure optimizations following
the initial merge of PR #25:
1. **SOPS & Secrets Management**:
- Generated dedicated Age keypair
(`age1jpa7hqyzzdfq7lvnw3l8qy6648mtjgpcqnljl5jz92dcqjrnsqfsn7m0fl`) and
updated `.sops.yaml`.
- Added SOPS-encrypted production secrets for PostgreSQL
(`ci/k8s/apps/postgres/secret.sops.yaml`) and Umami Analytics
(`ci/k8s/apps/umami/secret.sops.yaml`).
- Verified 100% clean round-trip decryption.
2. **Cloud-Init Template & Git Safety**:
- Converted `user-data.yaml` into `user-data.template.yaml` with clear
stubs for public SSH keys and private Age keys.
- Added `ci/cloud-init/user-data.yaml` to `.gitignore` to prevent
accidental secret leaks.
3. **Persistent Secondary Storage**:
- Added automated detection, ext4 formatting, and mounting of secondary
persistent disk (`/dev/vdb`) to `/var/lib/rancher/k3s/storage` with
`noatime` in `user-data.template.yaml`.
4. **Golden Image Naming & Workflows**:
- Updated image naming convention to include hyphenated UTC timestamps:
`com-ermnvldmr-debian-12-k3s-amd64-YYYY-MM-DD-HH-MM-SS-sha-<short_sha>.qcow2`.
- Verified successful CI golden image build and S3 upload.
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