Cert-Manager is an open-source Kubernetes add-on that automates the management and issuance of TLS certificates. It enables you to obtain and renew certificates from various Certificate Authorities (CAs) such as Let's Encrypt, Venafi, HashiCorp Vault, and more.
Cert-Manager simplifies the process of obtaining and renewing TLS certificates by automating the entire process. It automatically requests certificates, validates domain ownership, and configures the certificates on Kubernetes resources such as Ingress, Pods, and Services.
Cert-Manager offers a range of features, including support for ACME (Automatic Certificate Management Environment) protocol, wildcard certificates, automatic certificate rotation, and custom certificate issuers. It also integrates with Kubernetes-native resources such as Ingress and Secrets.