Apparently, I never bothered to check that the Kitchen HUD server was
actually fetching data from Victoria Metrics when I updated it before; I
only verified that the Unauthorized errors in the `vmselect` log
went away. They did, but only because now the Kitchen server was
failing to contact `vmselect` at all.
The configuration file for the kitchen HUD server has credentials
embedded in it. Until I get around to refactoring it to read these from
separate locations, we'll make use of the template feature of
SealedSecrets. With this feature, fields can refer to the (decrypted)
value of other fields using Go template syntax. This makes it possible
to have most of the `config.yaml` document unencrypted and easily
modifiable, while still protecting the secrets.
Dustin