CA cert for TLS authentication

[nezlis]

Hey there, hope you are doing well.

Is it possible to add CA cert for client authentication?
node_exporter already has that feature and it will be awesome to add it to your project.

Thank you!

[fstab]

It's not yet possible, but it should be easy to implement. I'll have a look.

[fstab]

I started a feature branch client_ca, but didn't find the time to test it yet. It should allow you to add the following to the server configuration:

client_ca: /path/to/client_ca/file
client_auth: RequireAndVerifyClientCert

Behavior should be the same as in node_exporter.

[fstab]

I tested it and added documentation: https://github.com/fstab/grok_exporter/blob/client_ca/CONFIG.md#server-section.
I'll keep it in the feature branch until the next release, because documentation should only be merged when the feature is released.

[nezlis]

Thank you, everything working as expected!