Tangible Bytes

A Web Developer’s Blog

Helm Chart for Multi Domain Tls Cert

I’m running a service on Kubernetes that hosts multiple websites via different domains.

I had followed the default Helm Chart pattern and ended up with one TLS cert for all the sites.

This worked OK - except that I kept getting downtime when I needed to add a new domain.

So I refactored to have a different certificate for each site.

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Local https for dev

As more and more of the web moves to https, we developers find more problems getting things to run properly.

It used to be easier to run development sites on http and maybe have a config option pretending it was secure, or use a fake certificate (often labelled “snakeoil”)

As the internet has matured this has become more problematic.

Some things just don’t work without https, browsers are less likely to let you ignore the warning, and if you develop a PWA it just won’t work without a valid, trusted certificate.

SSL Warning

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