Phase 0 groundwork for helmfile→ArgoCD migration using SOPS (Secrets Operations):
1. Install SOPS + AGE encryption
- AGE key generated and stored locally at ~/.sops/key.txt
- Public key embedded in .sops.yaml for file encryption rules
2. Create K8s Secret for AGE private key
- kubectl: create secret generic sops-age -n argocd --from-file=keys.txt=~/.sops/key.txt
- ArgoCD will use this key to decrypt secrets at sync time
3. Encrypt initial secrets
- k8s/base/secrets.enc.yaml: AES256_GCM encrypted secrets for all services
- Placeholder values (will be replaced with real values per environment)
- Secrets never visible in git (encrypted at rest)
4. Configure SOPS
- .sops.yaml: creation rules for k8s/*/secrets.enc.yaml files
- All future secret files auto-encrypt on edit (sops -e)
Setup: Store AGE key as K8s Secret in argocd namespace:
export KUBECONFIG=cluster-config/kubeconfig
kubectl create secret generic sops-age -n argocd --from-file=keys.txt=~/.sops/key.txt
Next: Configure ArgoCD Helm plugin to decrypt secrets on sync (Phase 0 continuation).
Co-Authored-By: Claude Haiku 4.5 <[email protected]>
