collector/ethtool: Expose NIC channel configuration #3514
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@SuperQ What do you think? :-) |
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| func (e *EthtoolFixture) GetChannels(intf string) (ethtool.Channels, error) { |
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The ethtool library already implements this. Please use it.
https://pkg.go.dev/github.com/safchain/ethtool#Ethtool.GetChannels
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Thanks for the review!
For querying the actual values, I'm using this, but I'm not sure how I should use that for the mock? There I adopted the existing approach also used to mock the other Ethtool methods.
Do you want me to rework the mock part? If so, could you please elaborate on what you have in mind?
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Ahh, sorry, I misunderstood the use here. I didn't realize that we had a complex mock test setup for this collector.
I'm not sure how useful this is, as it's not really mocking the syscalls that the real library does. I need to look over the ethtool_linux_test.go again, but it looks like it's not really a good way to test this.
collector/ethtool_linux.go
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| channels, err := c.ethtool.GetChannels(device) | ||
| if err == nil { |
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I'd suggest moving this to a function, then check for the error first and return early.
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Sure thing, like this?
When running a large fleet of machines running network-heavy loads and with different hardware configurations, it is important to get an overview about their configuration. Ethtool exporter already exposes a lot of useful info like port configuration, driver, and obviously stats, however did not expose the channel configuration. This commit adds two new metrics exposing the current and maximum supported channel configuration, with each metric exposing one instance for combined, other, rx, and tx. Signed-off-by: Maximilian Wilhelm <maximilian.wilhelm@hetzner-cloud.de>
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Hm, is the FreeBSD test broken somehow? |
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When running a large fleet of machines running network-heavy loads and with different hardware configurations, it is important to get an overview about their configuration. Ethtool exporter already exposes a lot of useful info like port configuration, driver, and obviously stats, however did not expose the channel configuration.
This commit adds two new metrics exposing the current and maximum supported channel configuration, with each metric exposing one instance for combined, other, rx, and tx.
I'd consider this a fairly trivial improvement, so directly opening a PR, hope that's OK 😁