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Month: May 2021

Creating self-signed wildcard-certificates for modern browsers

May 30, 2021 by Tobey 2 Comments
OpenSSL

When setting up my local K3s on a Intel NUC I thought it would be nice to use Ingress resources to access the services instead of using a node-port. As those services will only be used inside my LAN (and I didn’t want to have an invalid certificate warning) I decided to use a self-signed … [Read more…]

Posted in: Consumer, Kubernetes, Professional, Security, Tips && Tricks Tagged: Android, Certificate, dns, kubernetes, openssl, traefik, wildcard

Wildcard certificates, DNS challenges and Traefik in Kubernetes

May 19, 2021 by Tobey 2 Comments
Cert Manager, Traefik, K8s

Until now I have mostly dealt with certificates for a specific host – and there is usually nothing wrong with doing it this way. There are easy to use tools for Let’s Encrypt which automate the retrieval of a certificate for a (sub-) domain. On a docker-compose based, (mostly) manually managed stack you would usually … [Read more…]

Posted in: Kubernetes, Professional, Security Tagged: Certificate, dns, k3s, kubernetes, traefik

Redirect HTTP to HTTPS with Traefik 2 Middleware in K3s / Kubernetes

May 15, 2021 by Tobey 15 Comments
traefik-logo

When setting up my new K3s cluster I needed some sort of redirect from HTTP to HTTPS. One option that is often found when searching for this issue is to redirect all traffic with Traefik. This however is not suitable if you just want some services to redirect and not everything in the cluster. Especially … [Read more…]

Posted in: Kubernetes, Professional, Tips && Tricks Tagged: k3s, kubernetes, networking, traefik

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