vendor files

vendor/k8s.io/kubernetes/pkg/kubelet/dockershim/metrics/BUILD

@@ -0,0 +1,23 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library")
+
+go_library(
+    name = "go_default_library",
+    srcs = ["metrics.go"],
+    importpath = "k8s.io/kubernetes/pkg/kubelet/dockershim/metrics",
+    visibility = ["//visibility:public"],
+    deps = ["//vendor/github.com/prometheus/client_golang/prometheus:go_default_library"],
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [":package-srcs"],
+    tags = ["automanaged"],
+    visibility = ["//visibility:public"],
+)

vendor/k8s.io/kubernetes/pkg/kubelet/dockershim/metrics/metrics.go

@@ -0,0 +1,96 @@
+/*
+Copyright 2015 The Kubernetes 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 metrics
+
+import (
+	"sync"
+	"time"
+
+	"github.com/prometheus/client_golang/prometheus"
+)
+
+const (
+	// DockerOperationsKey is the key for docker operation metrics.
+	DockerOperationsKey = "docker_operations"
+	// DockerOperationsLatencyKey is the key for the operation latency metrics.
+	DockerOperationsLatencyKey = "docker_operations_latency_microseconds"
+	// DockerOperationsErrorsKey is the key for the operation error metrics.
+	DockerOperationsErrorsKey = "docker_operations_errors"
+	// DockerOperationsTimeoutKey is the key for the operation timoeut metrics.
+	DockerOperationsTimeoutKey = "docker_operations_timeout"
+
+	// Keep the "kubelet" subsystem for backward compatibility.
+	kubeletSubsystem = "kubelet"
+)
+
+var (
+	// DockerOperationsLatency collects operation latency numbers by operation
+	// type.
+	DockerOperationsLatency = prometheus.NewSummaryVec(
+		prometheus.SummaryOpts{
+			Subsystem: kubeletSubsystem,
+			Name:      DockerOperationsLatencyKey,
+			Help:      "Latency in microseconds of Docker operations. Broken down by operation type.",
+		},
+		[]string{"operation_type"},
+	)
+	// DockerOperations collects operation counts by operation type.
+	DockerOperations = prometheus.NewCounterVec(
+		prometheus.CounterOpts{
+			Subsystem: kubeletSubsystem,
+			Name:      DockerOperationsKey,
+			Help:      "Cumulative number of Docker operations by operation type.",
+		},
+		[]string{"operation_type"},
+	)
+	// DockerOperationsErrors collects operation errors by operation
+	// type.
+	DockerOperationsErrors = prometheus.NewCounterVec(
+		prometheus.CounterOpts{
+			Subsystem: kubeletSubsystem,
+			Name:      DockerOperationsErrorsKey,
+			Help:      "Cumulative number of Docker operation errors by operation type.",
+		},
+		[]string{"operation_type"},
+	)
+	// DockerOperationsTimeout collects operation timeouts by operation type.
+	DockerOperationsTimeout = prometheus.NewCounterVec(
+		prometheus.CounterOpts{
+			Subsystem: kubeletSubsystem,
+			Name:      DockerOperationsTimeoutKey,
+			Help:      "Cumulative number of Docker operation timeout by operation type.",
+		},
+		[]string{"operation_type"},
+	)
+)
+
+var registerMetrics sync.Once
+
+// Register all metrics.
+func Register() {
+	registerMetrics.Do(func() {
+		prometheus.MustRegister(DockerOperationsLatency)
+		prometheus.MustRegister(DockerOperations)
+		prometheus.MustRegister(DockerOperationsErrors)
+		prometheus.MustRegister(DockerOperationsTimeout)
+	})
+}
+
+// SinceInMicroseconds gets the time since the specified start in microseconds.
+func SinceInMicroseconds(start time.Time) float64 {
+	return float64(time.Since(start).Nanoseconds() / time.Microsecond.Nanoseconds())
+}