Metrics exporter broken in Helm chart?

[geekmush]

Setting metrics.enabled: true in the Helm values tries to add the docker.io/bitnami/redis-exporter container to the valkey pod, however, it looks like the redis-exporter is expecting the password file to have a different format?

metrics time="2025-02-27T18:35:29Z" level=info msg="Redis Metrics Exporter v1.67.0    build date: 2025-02-04-19:08:25    sha1: e2bb7fd6af3b950efa3267e4b932531098dc06b0    Go: go1.22.12    GOOS: linux    GOARCH: a
md64"
metrics time="2025-02-27T18:35:29Z" level=warning msg="password file format error: invalid character 'b' looking for beginning of value"
metrics time="2025-02-27T18:35:29Z" level=fatal msg="Error loading redis passwords from file /secrets/valkey-password, err: invalid character 'b' looking for beginning of value"

Any ideas how to move past this? I don't see any exposed attributes to teach the redis-exporter any better way to get the redis password.

Helm chart 2.4.1, Valkey version 8.0.2. I tried bumping the redis-exporter to the latest docker tag with no change (currently 1.67.0-debian-12-r10).

[geekmush]

Ah, I found something.

redis-exporter is failing when you have auth.usePasswordFiles set to true, redis-exporter expects the password to be in a redis://... format (I think).

Setting auth.usePasswordFiles to false causes the Helm template to set the REDIS_PASSWORD env var instead and the exporter fires up.