CertManagerExample

cert.yml

apiVersion: cert-manager.io/v1alpha2
kind: Certificate
metadata:
  name: eu.jite.wildcard.crt
  namespace: default
spec:
  secretName: eu.jite.wildcard.tls
  dnsNames:
    - "jite.eu"
    - "*.jite.eu"
  issuerRef:
    name: acme-letsencrypt-issuer
    kind: ClusterIssuer
    group: cert-manager.io

issuer.yml

apiVersion: cert-manager.io/v1alpha2
kind: ClusterIssuer
metadata:
  name: acme-letsencrypt-issuer
  namespace: core
spec:
  acme:
    privateKeySecretRef:
      name: acme-letsencrypt-issuer-account-key
    email: myemail@example.com
    server: https://acme-v02.api.letsencrypt.org/directory
    solvers:
      - dns01:
          cloudflare:
            email: myemail@example.com
            apiTokenSecretRef:
              name: cloudflare-api-token-secret
              key: token
        selector:
          dnsZones:
            - "jite.eu"