Kubernetes: kubectl apply --validate=false -f https://github.com/jetstack/cert-manager/releases/download/v1.7.0/cert-manager.yaml
Helm install: helm install --name cert-manager --namespace cert-manager --version v1.4.0 jetstack/cert-manager --set installCRDs=true
Use either issuer or cluster-issuer.
- issuer.yaml:
apiVersion: cert-manager.io/v1 kind: Issuer