Move metrics to core/metrics

Signed-off-by: Derek McGowan <derek@mcg.dev>

core/metrics/cgroups/v1/cpu.go

@@ -0,0 +1,146 @@
+//go:build linux
+
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package v1
+
+import (
+	"strconv"
+
+	v1 "github.com/containerd/containerd/v2/core/metrics/types/v1"
+	metrics "github.com/docker/go-metrics"
+	"github.com/prometheus/client_golang/prometheus"
+)
+
+var cpuMetrics = []*metric{
+	{
+		name: "cpu_total",
+		help: "The total cpu time",
+		unit: metrics.Nanoseconds,
+		vt:   prometheus.GaugeValue,
+		getValues: func(stats *v1.Metrics) []value {
+			if stats.CPU == nil {
+				return nil
+			}
+			return []value{
+				{
+					v: float64(stats.CPU.Usage.Total),
+				},
+			}
+		},
+	},
+	{
+		name: "cpu_kernel",
+		help: "The total kernel cpu time",
+		unit: metrics.Nanoseconds,
+		vt:   prometheus.GaugeValue,
+		getValues: func(stats *v1.Metrics) []value {
+			if stats.CPU == nil {
+				return nil
+			}
+			return []value{
+				{
+					v: float64(stats.CPU.Usage.Kernel),
+				},
+			}
+		},
+	},
+	{
+		name: "cpu_user",
+		help: "The total user cpu time",
+		unit: metrics.Nanoseconds,
+		vt:   prometheus.GaugeValue,
+		getValues: func(stats *v1.Metrics) []value {
+			if stats.CPU == nil {
+				return nil
+			}
+			return []value{
+				{
+					v: float64(stats.CPU.Usage.User),
+				},
+			}
+		},
+	},
+	{
+		name:   "per_cpu",
+		help:   "The total cpu time per cpu",
+		unit:   metrics.Nanoseconds,
+		vt:     prometheus.GaugeValue,
+		labels: []string{"cpu"},
+		getValues: func(stats *v1.Metrics) []value {
+			if stats.CPU == nil {
+				return nil
+			}
+			var out []value
+			for i, v := range stats.CPU.Usage.PerCPU {
+				out = append(out, value{
+					v: float64(v),
+					l: []string{strconv.Itoa(i)},
+				})
+			}
+			return out
+		},
+	},
+	{
+		name: "cpu_throttle_periods",
+		help: "The total cpu throttle periods",
+		unit: metrics.Total,
+		vt:   prometheus.GaugeValue,
+		getValues: func(stats *v1.Metrics) []value {
+			if stats.CPU == nil {
+				return nil
+			}
+			return []value{
+				{
+					v: float64(stats.CPU.Throttling.Periods),
+				},
+			}
+		},
+	},
+	{
+		name: "cpu_throttled_periods",
+		help: "The total cpu throttled periods",
+		unit: metrics.Total,
+		vt:   prometheus.GaugeValue,
+		getValues: func(stats *v1.Metrics) []value {
+			if stats.CPU == nil {
+				return nil
+			}
+			return []value{
+				{
+					v: float64(stats.CPU.Throttling.ThrottledPeriods),
+				},
+			}
+		},
+	},
+	{
+		name: "cpu_throttled_time",
+		help: "The total cpu throttled time",
+		unit: metrics.Nanoseconds,
+		vt:   prometheus.GaugeValue,
+		getValues: func(stats *v1.Metrics) []value {
+			if stats.CPU == nil {
+				return nil
+			}
+			return []value{
+				{
+					v: float64(stats.CPU.Throttling.ThrottledTime),
+				},
+			}
+		},
+	},
+}