--- apiVersion: cert-manager.io/v1 kind: ClusterIssuer metadata: name: letsencrypt-issuer-staging spec: acme: email: ${admin_email} # overwrite this to "https://acme-staging-v02.api.letsencrypt.org/directory" for staging server: "https://acme-staging-v02.api.letsencrypt.org/directory" privateKeySecretRef: # Secret resource used to store the account's private key. name: letsencrypt-account-key # Enable the HTTP01 challenge mechanism for this Issuer solvers: - http01: ingress: class: nginx