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Allow specifying which node exporter collectors to exclude #2485

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Allow specifying which node exporter collectors to exclude #2485

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6 changes: 2 additions & 4 deletions jsonnet/kube-prometheus/components/node-exporter.libsonnet
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Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,7 @@ local defaults = {
},
listenAddress:: '127.0.0.1',
filesystemMountPointsExclude:: '^/(dev|proc|sys|run/k3s/containerd/.+|var/lib/docker/.+|var/lib/kubelet/pods/.+)($|/)',
exportersExclude:: ['wifi', 'btrfs', 'hwmon'],
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IIUC by default we should not exclude these, you can have the exclude variable and while importing this jsonnet you should define the variable to include collectors to exclude so that default setting doesn't change

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They were already excluded, I just exposed them as a variable.

// NOTE: ignore veth network interface associated with containers.
// OVN renames veth.* to <rand-hex>@if<X> where X is /sys/class/net/<if>/ifindex
// thus [a-z0-9] regex below
Expand Down Expand Up @@ -214,13 +215,10 @@ function(params) {
'--path.sysfs=/host/sys',
'--path.rootfs=/host/root',
'--path.udev.data=/host/root/run/udev/data',
'--no-collector.wifi',
'--no-collector.hwmon',
'--no-collector.btrfs',
'--collector.filesystem.mount-points-exclude=' + ne._config.filesystemMountPointsExclude,
'--collector.netclass.ignored-devices=' + ne._config.ignoredNetworkDevices,
'--collector.netdev.device-exclude=' + ne._config.ignoredNetworkDevices,
],
] + std.map (function (x) std.format ( '--no-collector.%s', x), ne._config.exportersExclude),
volumeMounts: [
{ name: 'sys', mountPath: '/host/sys', mountPropagation: 'HostToContainer', readOnly: true },
{ name: 'root', mountPath: '/host/root', mountPropagation: 'HostToContainer', readOnly: true },
Expand Down