The vault-issuer ClusterIssuer is applied out-of-band (Helm) and referenced
by ~15 Gateways, but is not tracked in GitOps, causing config drift.
- Add apps/base/cert-manager/clusterissuer_vault-issuer.yaml capturing the
live spec byte-faithfully (vault.service.consul pki_int/sign/servers_default,
k8s auth mount k8s/au/syd1, role cert_manager_issuer, SA cert-manager-vault-issuer,
caBundleSecretRef vault-ca-cert).
- Register the manifest in the cert-manager base kustomization.
Claude-Session: https://claude.ai/code/session_01JUoARVdmhxKQHyyyp1pxeT
Follow-up to #239. Adds a `VMServiceScrape` for cert-manager's existing webhook (`metrics` :9402) and cainjector (`http-metrics` :9402) services so the observability VMAgent collects them. No chart change needed. (The controller's own metrics need `prometheus.enabled` in the chart to expose a metrics service — separate follow-up.)
Reviewed-on: #241
Co-authored-by: Ben Vincent <ben@unkin.net>
Co-committed-by: Ben Vincent <ben@unkin.net>