General Linux

Auto-Renew Let’s Encrypt Wildcard Certificate using Google Cloud DNS

Let’s go over how to create a Wildcard Certificate that also auto-renews. Wildcards are challenged by DNS-01. This challenge asks you to prove that you control the DNS for your domain name by putting a specific value in a TXT record under that domain name. This requires DNS access, especially when you are automating the […]


Kubernetes: cert-manager on GKE using Let’s Encrypt

Updated: 2020-06-18 The cert-manager project Automatically provisions and renews TLS certificates in Kubernetes. It supports using your own certificate authority, self signed certificates, certificates managed by the Hashicorp Vault PKI, and of course the free certificates issued by Let’s Encrypt. If you followed my last post, I automated DNS using external-dns. Now it’s time to automate SSL Certificates with […]