promhippie / prometheus-hcloud-sd Goto Github PK

Currently the built binaries are not really static, they got a dependency on muslc, this needs to be fixed, otherwise the Docker images are broken.

Instead of adding development tooling to the regular go.mod file we should use bingo to version used tools like calens, golint, reflex and staticcheck to make sure we always use versions known to work properly.

Since Prometheus implements a HTTP SD with the new version 2.28 we should provide an endpoint for this implementation as an alternative to the regular file handler.

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Message: Invalid configuration option: dockerfile.enableMajor

We need to update the used Go version and on the same run we should also update all dependencies to the latest version to keep everything properly up to date.

The HTTP SD within Prometheus accepts only application/json as a content type, so we need to drop the utf-8 encoding part from the content type.

We got to drop the darwin/386 builds, they are not supported by the used Go version anymore. Soonish we should also add arm64 builds to stay compatible with current macOS hardware.

We should add a healthcheck command to make it easier for Docker containers to check if the service is running without the external healtchecks available via Kubernetes.

Hetzner Cloud allows using ., - and _ in labels. While underscores works as expected, labels containing the other two chars, especially used in the key of a label, results in an "invalid label error" e.g. a label a.b.c:example results in __meta_hcloud_label_a.b.c="example". Maybe a simple replace logic should be used to prevent invalid labels.

With the current behavior the resulting SD config doesn't get updated anymore if one of the projects fails, the config should be continued if one of the projects fails, otherwise it results in an not updated SD config.

For Prometheus there is a new toolkit available which enables a web config to secure exporters (or HTTP service discoveries) be integrating certs and also authentication. This should be implemented. You can find it at https://github.com/prometheus/exporter-toolkit.

It would be nice if a change to the configuration automatically reloads the service.

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