metropolis/node/core/metrics: Enable cpu info exporter

Change-Id: I625485570360908810fad3f56e8958ed2d5bbcad
Reviewed-on: https://review.monogon.dev/c/monogon/+/2327
Reviewed-by: Leopold Schabel <leo@monogon.tech>
Tested-by: Jenkins CI
diff --git a/metropolis/node/core/metrics/exporters.go b/metropolis/node/core/metrics/exporters.go
index 022e8d5..d39081c 100644
--- a/metropolis/node/core/metrics/exporters.go
+++ b/metropolis/node/core/metrics/exporters.go
@@ -37,6 +37,7 @@
 			"--collector.buddyinfo",
 			"--collector.zoneinfo",
 			"--collector.tcpstat",
+			"--collector.cpu.info",
 			"--collector.netclass.ignored-devices=^(veth.*)$",
 			"--collector.netdev.device-exclude=^(veth.*)$",
 			"--collector.filesystem.mount-points-exclude=^/(dev|proc|sys|data/kubernetes/kubelet/pods/.+|tmp/.+|ephermal/containerd/.+)($|/)",