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Showing posts from February, 2018

Free automated TLS certificates on k8s

Cross posted from blog.n1analytics.comAt N1 Analytics we use Kubernetes for running experiments, continuous integration testing and deployment. In this post I document setting up a Kubernetes cluster to automatically provision TLS certificates from Let’s Encrypt using Jetstack’s Certificate Manager, the helm package manager and the nginx-ingress controller.I wrote this after migrating our cluster from traefik to use cert manager and nginx-ingress. The end state will be one where we can create Kubernetes ingress with a TLS certificate with only a set of annotations in the respective helm template.I’m going to assume some background knowlege for this post, if you haven’t heard of Let’s Encrypt and Kubernetes - you may want to read up on those first! To follow along you will need access to a kubernetes cluster and the kubectl tool.There are a lot of moving pieces in the Kubernetes landscape, one of the most common methods of provisioning TLS certificates was kube-lego - also by Jetstack.…