apiVersion: cert-manager.io/v1
kind: ClusterIssuer
metadata:
  name: selfsigned
spec:
  selfSigned: {}
---
# Homelab internal root CA (10y). Install the .crt on clients (see below).
apiVersion: cert-manager.io/v1
kind: Certificate
metadata:
  name: internal-ca-root
  namespace: cert-manager
spec:
  isCA: true
  commonName: homelab internal root CA
  duration: 87600h
  renewBefore: 7200h
  secretName: internal-ca-root
  privateKey:
    algorithm: RSA
    size: 4096
  issuerRef:
    name: selfsigned
    kind: ClusterIssuer
---
apiVersion: cert-manager.io/v1
kind: ClusterIssuer
metadata:
  name: internal-ca
spec:
  ca:
    secretName: internal-ca-root