mirror of
https://github.com/prometheus-community/windows_exporter.git
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Jan-Otto KröpkeandClaude Opus 5.5
864088b034
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com> Signed-off-by: Jan-Otto Kröpke <mail@jkroepke.de>
958 lines
28 KiB
Go
958 lines
28 KiB
Go
// SPDX-License-Identifier: Apache-2.0
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//
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// Copyright The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//go:build windows
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package container
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import (
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"context"
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"errors"
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"fmt"
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"log/slog"
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"slices"
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"strings"
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"sync"
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"time"
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"unsafe"
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"github.com/alecthomas/kingpin/v2"
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"github.com/prometheus-community/windows_exporter/internal/headers/cri"
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"github.com/prometheus-community/windows_exporter/internal/headers/hcn"
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"github.com/prometheus-community/windows_exporter/internal/headers/hcs"
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"github.com/prometheus-community/windows_exporter/internal/headers/kernel32"
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"github.com/prometheus-community/windows_exporter/internal/mi"
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"github.com/prometheus-community/windows_exporter/internal/pdh"
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"github.com/prometheus-community/windows_exporter/internal/types"
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"github.com/prometheus/client_golang/prometheus"
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"golang.org/x/sys/windows"
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)
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const (
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Name = "container"
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subCollectorHCS = "hcs"
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subCollectorHostprocess = "hostprocess"
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JobObjectMemoryUsageInformation = 28
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// defaultCRITimeout limits the CRI calls if the scrape has no timeout.
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defaultCRITimeout = 10 * time.Second
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// grpcUnimplemented is returned by containerd if its CRI plugin is disabled.
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grpcUnimplemented = 12
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)
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type Config struct {
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CollectorsEnabled []string `yaml:"enabled"`
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// CRIEndpoint is the Kubernetes Container Runtime Interface (CRI) endpoint.
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// It provides the Kubernetes metadata and the HostProcess containers.
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CRIEndpoint string `yaml:"cri-endpoint"`
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}
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//nolint:gochecknoglobals
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var ConfigDefaults = Config{
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CollectorsEnabled: []string{
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subCollectorHCS,
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subCollectorHostprocess,
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},
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CRIEndpoint: "npipe:////./pipe/containerd-containerd",
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}
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// A Collector is a Prometheus Collector for containers metrics.
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type Collector struct {
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config Config
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logger *slog.Logger
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criClient *cri.Client
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// mu serializes Collect, because the CRI state below is not safe for concurrent use.
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// Overlapping Collect calls, e.g. after a scrape timeout, would otherwise write it concurrently.
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mu sync.Mutex
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// criRuntimeName is the runtime name, e.g. containerd. Kubernetes uses it as container ID prefix.
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criRuntimeName string
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// criUnavailableLogged avoids logging an unavailable CRI endpoint on every scrape.
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criUnavailableLogged bool
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// Presence
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containerAvailable *prometheus.Desc
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// Number of containers
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containersCount *prometheus.Desc
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// Memory
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usageCommitBytes *prometheus.Desc
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usageCommitPeakBytes *prometheus.Desc
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usagePrivateWorkingSetBytes *prometheus.Desc
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// CPU
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runtimeTotal *prometheus.Desc
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runtimeUser *prometheus.Desc
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runtimeKernel *prometheus.Desc
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// Network
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bytesReceived *prometheus.Desc
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bytesSent *prometheus.Desc
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packetsReceived *prometheus.Desc
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packetsSent *prometheus.Desc
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droppedPacketsIncoming *prometheus.Desc
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droppedPacketsOutgoing *prometheus.Desc
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// Storage
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readCountNormalized *prometheus.Desc
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readSizeBytes *prometheus.Desc
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writeCountNormalized *prometheus.Desc
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writeSizeBytes *prometheus.Desc
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}
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type containerInfo struct {
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id string
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namespace string
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pod string
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container string
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}
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// kubernetesContainers holds the Kubernetes metadata of the running containers, read from the CRI endpoint.
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type kubernetesContainers struct {
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// containers maps the container IDs without runtime prefix to their metadata.
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containers map[string]containerInfo
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// sandboxes holds the IDs of all pod sandboxes. Their pause containers are not exported.
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sandboxes map[string]struct{}
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}
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func newKubernetesContainers(runtimeName string, sandboxes []cri.PodSandbox, containers []cri.Container) kubernetesContainers {
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k := kubernetesContainers{
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containers: make(map[string]containerInfo, len(containers)),
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sandboxes: make(map[string]struct{}, len(sandboxes)),
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}
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pods := make(map[string]cri.PodSandbox, len(sandboxes))
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for _, sandbox := range sandboxes {
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k.sandboxes[sandbox.ID] = struct{}{}
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pods[sandbox.ID] = sandbox
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}
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for _, container := range containers {
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if container.State != cri.ContainerRunning {
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continue
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}
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pod := pods[container.PodSandboxID]
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k.containers[container.ID] = containerInfo{
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id: runtimeName + "://" + container.ID,
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namespace: pod.Namespace,
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pod: pod.Name,
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container: container.Name,
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}
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}
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return k
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}
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// New constructs a new Collector.
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func New(config *Config) *Collector {
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if config == nil {
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config = &ConfigDefaults
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}
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if config.CollectorsEnabled == nil {
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config.CollectorsEnabled = ConfigDefaults.CollectorsEnabled
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}
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if config.CRIEndpoint == "" {
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config.CRIEndpoint = ConfigDefaults.CRIEndpoint
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}
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c := &Collector{
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config: *config,
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}
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return c
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}
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func NewWithFlags(app *kingpin.Application) *Collector {
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c := &Collector{
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config: ConfigDefaults,
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}
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c.config.CollectorsEnabled = make([]string, 0)
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var collectorsEnabled string
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app.Flag(
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"collector.container.enabled",
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"Comma-separated list of collectors to use. Defaults to all, if not specified.",
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).Default(strings.Join(ConfigDefaults.CollectorsEnabled, ",")).StringVar(&collectorsEnabled)
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app.Flag(
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"collector.container.cri-endpoint",
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"Kubernetes CRI endpoint, used for Kubernetes labels and HostProcess containers.",
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).Default(ConfigDefaults.CRIEndpoint).StringVar(&c.config.CRIEndpoint)
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app.Action(func(*kingpin.ParseContext) error {
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c.config.CollectorsEnabled = strings.Split(collectorsEnabled, ",")
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return nil
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})
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return c
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}
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func (c *Collector) GetName() string {
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return Name
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}
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func (c *Collector) Close() error {
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if c.criClient != nil {
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c.criClient.Close()
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c.criClient = nil
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}
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return nil
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}
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func (c *Collector) Build(logger *slog.Logger, _ *mi.Session) error {
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c.logger = logger.With(slog.String("collector", Name))
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for _, collector := range c.config.CollectorsEnabled {
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if !slices.Contains([]string{subCollectorHCS, subCollectorHostprocess}, collector) {
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return fmt.Errorf("unknown collector: %s", collector)
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}
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}
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// Without the Containers feature, the Host Compute Service is missing and
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// every scrape would fail. Report the collector as unsupported instead, so
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// it is skipped once at startup rather than logging a warning per scrape.
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if slices.Contains(c.config.CollectorsEnabled, subCollectorHCS) {
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if _, err := hcs.GetContainers(); errors.Is(err, hcs.ErrServiceNotAvailable) {
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return fmt.Errorf("host compute service not available, is the Containers feature installed? %w: %w",
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errors.ErrUnsupported, err)
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}
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}
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_ = c.Close()
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criClient, err := cri.NewClient(c.config.CRIEndpoint)
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if err != nil {
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return fmt.Errorf("invalid CRI endpoint: %w", err)
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}
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c.criClient = criClient
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c.criRuntimeName = ""
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c.criUnavailableLogged = false
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c.containerAvailable = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "available"),
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"Available",
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[]string{"container_id", "namespace", "pod", "container", "hostprocess"},
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nil,
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)
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c.containersCount = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "count"),
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"Number of containers",
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nil,
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nil,
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)
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c.usageCommitBytes = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "memory_usage_commit_bytes"),
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"Memory Usage Commit Bytes",
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[]string{"container_id", "namespace", "pod", "container"},
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nil,
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)
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c.usageCommitPeakBytes = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "memory_usage_commit_peak_bytes"),
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"Memory Usage Commit Peak Bytes",
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[]string{"container_id", "namespace", "pod", "container"},
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nil,
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)
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c.usagePrivateWorkingSetBytes = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "memory_usage_private_working_set_bytes"),
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"Memory Usage Private Working Set Bytes",
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[]string{"container_id", "namespace", "pod", "container"},
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nil,
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)
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c.runtimeTotal = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "cpu_usage_seconds_total"),
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"Total Run time in Seconds",
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[]string{"container_id", "namespace", "pod", "container"},
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nil,
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)
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c.runtimeUser = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "cpu_usage_seconds_usermode"),
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"Run Time in User mode in Seconds",
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[]string{"container_id", "namespace", "pod", "container"},
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nil,
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)
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c.runtimeKernel = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "cpu_usage_seconds_kernelmode"),
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"Run time in Kernel mode in Seconds",
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[]string{"container_id", "namespace", "pod", "container"},
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nil,
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)
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c.bytesReceived = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "network_receive_bytes_total"),
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"Bytes Received on Interface",
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[]string{"container_id", "namespace", "pod", "container", "interface"},
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nil,
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)
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c.bytesSent = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "network_transmit_bytes_total"),
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"Bytes Sent on Interface",
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[]string{"container_id", "namespace", "pod", "container", "interface"},
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nil,
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)
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c.packetsReceived = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "network_receive_packets_total"),
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"Packets Received on Interface",
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[]string{"container_id", "namespace", "pod", "container", "interface"},
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nil,
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)
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c.packetsSent = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "network_transmit_packets_total"),
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"Packets Sent on Interface",
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[]string{"container_id", "namespace", "pod", "container", "interface"},
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nil,
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)
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c.droppedPacketsIncoming = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "network_receive_packets_dropped_total"),
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"Dropped Incoming Packets on Interface",
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[]string{"container_id", "namespace", "pod", "container", "interface"},
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nil,
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)
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c.droppedPacketsOutgoing = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "network_transmit_packets_dropped_total"),
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"Dropped Outgoing Packets on Interface",
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[]string{"container_id", "namespace", "pod", "container", "interface"},
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nil,
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)
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c.readCountNormalized = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "storage_read_count_normalized_total"),
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"Read Count Normalized",
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[]string{"container_id", "namespace", "pod", "container"},
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nil,
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)
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c.readSizeBytes = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "storage_read_size_bytes_total"),
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"Read Size Bytes",
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[]string{"container_id", "namespace", "pod", "container"},
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nil,
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)
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c.writeCountNormalized = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "storage_write_count_normalized_total"),
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"Write Count Normalized",
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[]string{"container_id", "namespace", "pod", "container"},
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nil,
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)
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c.writeSizeBytes = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "storage_write_size_bytes_total"),
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"Write Size Bytes",
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[]string{"container_id", "namespace", "pod", "container"},
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nil,
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)
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return nil
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}
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// Collect sends the metric values for each metric
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// to the provided prometheus Metric channel.
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func (c *Collector) Collect(ch chan<- prometheus.Metric, maxScrapeDuration time.Duration) error {
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c.mu.Lock()
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defer c.mu.Unlock()
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if maxScrapeDuration <= 0 {
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maxScrapeDuration = defaultCRITimeout
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}
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ctx, cancel := context.WithTimeout(context.Background(), maxScrapeDuration)
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defer cancel()
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errs := make([]error, 0)
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// Without Kubernetes metadata, HCS containers are still exported, but without Kubernetes labels.
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kubernetes, err := c.getKubernetesContainers(ctx)
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if err != nil {
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errs = append(errs, err)
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}
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if slices.Contains(c.config.CollectorsEnabled, subCollectorHCS) {
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if err := c.collectHCS(ch, kubernetes); err != nil {
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errs = append(errs, err)
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}
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}
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if slices.Contains(c.config.CollectorsEnabled, subCollectorHostprocess) {
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if err := c.collectJobContainers(ch, kubernetes); err != nil {
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errs = append(errs, err)
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}
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}
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return errors.Join(errs...)
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}
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// getKubernetesContainers reads the running containers and pod sandboxes from the CRI endpoint.
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// If the endpoint is not available, e.g. on hosts without Kubernetes, it returns no containers.
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func (c *Collector) getKubernetesContainers(ctx context.Context) (kubernetesContainers, error) {
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if c.criRuntimeName == "" {
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version, err := c.criClient.Version(ctx)
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if err != nil {
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return kubernetesContainers{}, c.handleCRIError(err)
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}
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c.criRuntimeName = version.RuntimeName
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if c.criRuntimeName == "" {
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c.criRuntimeName = "containerd"
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}
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}
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sandboxes, err := c.criClient.ListPodSandboxes(ctx)
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if err != nil {
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return kubernetesContainers{}, c.handleCRIError(err)
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}
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containers, err := c.criClient.ListRunningContainers(ctx)
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if err != nil {
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return kubernetesContainers{}, c.handleCRIError(err)
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}
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if c.criUnavailableLogged {
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c.logger.InfoContext(ctx, "CRI endpoint is available", slog.String("cri_endpoint", c.config.CRIEndpoint))
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c.criUnavailableLogged = false
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}
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return newKubernetesContainers(c.criRuntimeName, sandboxes, containers), nil
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}
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// handleCRIError ignores errors of a missing CRI endpoint, which is expected on hosts without Kubernetes.
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func (c *Collector) handleCRIError(err error) error {
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// The runtime may be replaced, so query its name again.
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c.criRuntimeName = ""
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var statusErr *cri.StatusError
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if !errors.Is(err, windows.ERROR_FILE_NOT_FOUND) && (!errors.As(err, &statusErr) || statusErr.Code != grpcUnimplemented) {
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return fmt.Errorf("error in fetching Kubernetes metadata from CRI endpoint %s: %w", c.config.CRIEndpoint, err)
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}
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if !c.criUnavailableLogged {
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c.logger.Info("CRI endpoint is not available, Kubernetes labels and HostProcess containers are not collected",
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slog.String("cri_endpoint", c.config.CRIEndpoint),
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slog.Any("err", err),
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)
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c.criUnavailableLogged = true
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}
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return nil
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}
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func (c *Collector) collectHCS(ch chan<- prometheus.Metric, kubernetes kubernetesContainers) error {
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// Types Container is passed to get the containers compute systems only
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containers, err := hcs.GetContainers()
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if err != nil {
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return fmt.Errorf("error in fetching containers: %w", err)
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}
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count := len(containers)
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if count == 0 {
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ch <- prometheus.MustNewConstMetric(
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c.containersCount,
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prometheus.GaugeValue,
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0,
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)
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return nil
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}
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var countersCount float64
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hcsContainers := make(map[string]containerInfo, len(containers))
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collectErrors := make([]error, 0)
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for _, container := range containers {
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if container.State != "Running" {
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continue
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}
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countersCount++
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// Skip pause containers
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if _, ok := kubernetes.sandboxes[container.ID]; ok {
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continue
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}
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info, ok := kubernetes.containers[container.ID]
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if !ok {
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// Containers not managed by Kubernetes, e.g. Docker containers, have no Kubernetes labels.
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info = containerInfo{id: getContainerIdWithPrefix(container)}
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}
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hcsContainers[container.ID] = info
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if err = c.collectHCSContainer(ch, container, info); err != nil {
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if errors.Is(err, hcs.ErrIDNotFound) {
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c.logger.Debug("err in fetching container statistics",
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slog.String("container_id", container.ID),
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slog.String("container_name", info.container),
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slog.String("container_pod_name", info.pod),
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slog.String("container_namespace", info.namespace),
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slog.Any("err", err),
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)
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|
} else {
|
|
c.logger.Error("err in fetching container statistics",
|
|
slog.String("container_id", container.ID),
|
|
slog.String("container_name", info.container),
|
|
slog.String("container_pod_name", info.pod),
|
|
slog.String("container_namespace", info.namespace),
|
|
slog.Any("err", err),
|
|
)
|
|
|
|
collectErrors = append(collectErrors, err)
|
|
}
|
|
|
|
continue
|
|
}
|
|
}
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.containersCount,
|
|
prometheus.GaugeValue,
|
|
countersCount,
|
|
)
|
|
|
|
if err := c.collectNetworkMetrics(ch, hcsContainers, kubernetes.sandboxes); err != nil {
|
|
return fmt.Errorf("error in fetching container network statistics: %w", err)
|
|
}
|
|
|
|
if len(collectErrors) > 0 {
|
|
return fmt.Errorf("errors while fetching container statistics: %w", errors.Join(collectErrors...))
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (c *Collector) collectHCSContainer(ch chan<- prometheus.Metric, containerDetails hcs.Properties, containerInfo containerInfo) error {
|
|
containerStats, err := hcs.GetContainerStatistics(containerDetails.ID)
|
|
if err != nil {
|
|
return fmt.Errorf("error fetching container statistics: %w", err)
|
|
}
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.containerAvailable,
|
|
prometheus.GaugeValue,
|
|
1,
|
|
containerInfo.id, containerInfo.namespace, containerInfo.pod, containerInfo.container, "false",
|
|
)
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.usageCommitBytes,
|
|
prometheus.GaugeValue,
|
|
float64(containerStats.Memory.MemoryUsageCommitBytes),
|
|
|
|
containerInfo.id, containerInfo.namespace, containerInfo.pod, containerInfo.container,
|
|
)
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.usageCommitPeakBytes,
|
|
prometheus.GaugeValue,
|
|
float64(containerStats.Memory.MemoryUsageCommitPeakBytes),
|
|
|
|
containerInfo.id, containerInfo.namespace, containerInfo.pod, containerInfo.container,
|
|
)
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.usagePrivateWorkingSetBytes,
|
|
prometheus.GaugeValue,
|
|
float64(containerStats.Memory.MemoryUsagePrivateWorkingSetBytes),
|
|
|
|
containerInfo.id, containerInfo.namespace, containerInfo.pod, containerInfo.container,
|
|
)
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.runtimeTotal,
|
|
prometheus.CounterValue,
|
|
float64(containerStats.Processor.TotalRuntime100ns)*pdh.TicksToSecondScaleFactor,
|
|
|
|
containerInfo.id, containerInfo.namespace, containerInfo.pod, containerInfo.container,
|
|
)
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.runtimeUser,
|
|
prometheus.CounterValue,
|
|
float64(containerStats.Processor.RuntimeUser100ns)*pdh.TicksToSecondScaleFactor,
|
|
|
|
containerInfo.id, containerInfo.namespace, containerInfo.pod, containerInfo.container,
|
|
)
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.runtimeKernel,
|
|
prometheus.CounterValue,
|
|
float64(containerStats.Processor.RuntimeKernel100ns)*pdh.TicksToSecondScaleFactor,
|
|
|
|
containerInfo.id, containerInfo.namespace, containerInfo.pod, containerInfo.container,
|
|
)
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.readCountNormalized,
|
|
prometheus.CounterValue,
|
|
float64(containerStats.Storage.ReadCountNormalized),
|
|
|
|
containerInfo.id, containerInfo.namespace, containerInfo.pod, containerInfo.container,
|
|
)
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.readSizeBytes,
|
|
prometheus.CounterValue,
|
|
float64(containerStats.Storage.ReadSizeBytes),
|
|
|
|
containerInfo.id, containerInfo.namespace, containerInfo.pod, containerInfo.container,
|
|
)
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.writeCountNormalized,
|
|
prometheus.CounterValue,
|
|
float64(containerStats.Storage.WriteCountNormalized),
|
|
|
|
containerInfo.id, containerInfo.namespace, containerInfo.pod, containerInfo.container,
|
|
)
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.writeSizeBytes,
|
|
prometheus.CounterValue,
|
|
float64(containerStats.Storage.WriteSizeBytes),
|
|
|
|
containerInfo.id, containerInfo.namespace, containerInfo.pod, containerInfo.container,
|
|
)
|
|
|
|
return nil
|
|
}
|
|
|
|
// collectNetworkMetrics collects network metrics for the HCS containers.
|
|
func (c *Collector) collectNetworkMetrics(ch chan<- prometheus.Metric, containers map[string]containerInfo, sandboxes map[string]struct{}) error {
|
|
endpoints, err := hcn.ListEndpoints()
|
|
if err != nil {
|
|
return fmt.Errorf("error in fetching HCN endpoints: %w", err)
|
|
}
|
|
|
|
if len(endpoints) == 0 {
|
|
return nil
|
|
}
|
|
|
|
for _, endpoint := range endpoints {
|
|
if len(endpoint.SharedContainers) == 0 {
|
|
continue
|
|
}
|
|
|
|
endpointStats, err := hcn.GetHNSEndpointStats(endpoint.ID)
|
|
if err != nil {
|
|
c.logger.Warn("Failed to collect network stats for interface "+endpoint.ID,
|
|
slog.Any("err", err),
|
|
)
|
|
|
|
continue
|
|
}
|
|
|
|
for _, containerId := range endpoint.SharedContainers {
|
|
containerInfo, ok := containers[containerId]
|
|
if !ok {
|
|
// Pause containers share the endpoint of their pod.
|
|
if _, ok := sandboxes[containerId]; !ok {
|
|
c.logger.Debug("Unknown container " + containerId + " for endpoint " + endpoint.ID)
|
|
}
|
|
|
|
continue
|
|
}
|
|
|
|
endpointId := strings.ToUpper(endpoint.ID)
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.bytesReceived,
|
|
prometheus.CounterValue,
|
|
float64(endpointStats.BytesReceived),
|
|
containerInfo.id, containerInfo.namespace, containerInfo.pod, containerInfo.container, endpointId,
|
|
)
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.bytesSent,
|
|
prometheus.CounterValue,
|
|
float64(endpointStats.BytesSent),
|
|
containerInfo.id, containerInfo.namespace, containerInfo.pod, containerInfo.container, endpointId,
|
|
)
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.packetsReceived,
|
|
prometheus.CounterValue,
|
|
float64(endpointStats.PacketsReceived),
|
|
containerInfo.id, containerInfo.namespace, containerInfo.pod, containerInfo.container, endpointId,
|
|
)
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.packetsSent,
|
|
prometheus.CounterValue,
|
|
float64(endpointStats.PacketsSent),
|
|
containerInfo.id, containerInfo.namespace, containerInfo.pod, containerInfo.container, endpointId,
|
|
)
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.droppedPacketsIncoming,
|
|
prometheus.CounterValue,
|
|
float64(endpointStats.DroppedPacketsIncoming),
|
|
containerInfo.id, containerInfo.namespace, containerInfo.pod, containerInfo.container, endpointId,
|
|
)
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.droppedPacketsOutgoing,
|
|
prometheus.CounterValue,
|
|
float64(endpointStats.DroppedPacketsOutgoing),
|
|
containerInfo.id, containerInfo.namespace, containerInfo.pod, containerInfo.container, endpointId,
|
|
)
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// collectJobContainers collects container metrics for job containers.
|
|
// Job container based on Win32 Job objects.
|
|
// https://learn.microsoft.com/en-us/windows/win32/procthread/job-objects
|
|
//
|
|
// Job containers are containers that aren't managed by HCS, e.g host process containers.
|
|
// They are found by the job object, which hcsshim names after the container ID.
|
|
func (c *Collector) collectJobContainers(ch chan<- prometheus.Metric, kubernetes kubernetesContainers) error {
|
|
errs := make([]error, 0)
|
|
|
|
for containerID, info := range kubernetes.containers {
|
|
if err := c.collectJobContainer(ch, containerID, info); err != nil {
|
|
errs = append(errs, err)
|
|
}
|
|
}
|
|
|
|
return errors.Join(errs...)
|
|
}
|
|
|
|
// collectJobContainer collects the metrics of a job container.
|
|
// It does nothing if the container has no job object, i.e. it is not a job container.
|
|
func (c *Collector) collectJobContainer(ch chan<- prometheus.Metric, containerID string, containerInfo containerInfo) error {
|
|
jobObjectHandle, err := kernel32.OpenJobObject("Global\\JobContainer_" + containerID)
|
|
if err != nil {
|
|
if errors.Is(err, windows.ERROR_FILE_NOT_FOUND) {
|
|
return nil
|
|
}
|
|
|
|
return fmt.Errorf("error in opening job object: %w", err)
|
|
}
|
|
|
|
defer func(fd windows.Handle) {
|
|
_ = windows.Close(fd)
|
|
}(jobObjectHandle)
|
|
|
|
var jobInfo kernel32.JobObjectBasicAndIOAccountingInformation
|
|
|
|
if err = windows.QueryInformationJobObject(
|
|
jobObjectHandle,
|
|
windows.JobObjectBasicAndIoAccountingInformation,
|
|
uintptr(unsafe.Pointer(&jobInfo)),
|
|
uint32(unsafe.Sizeof(jobInfo)),
|
|
nil,
|
|
); err != nil {
|
|
return fmt.Errorf("error in querying job object information: %w", err)
|
|
}
|
|
|
|
var jobMemoryInfo kernel32.JobObjectMemoryUsageInformation
|
|
|
|
// https://github.com/microsoft/hcsshim/blob/bfb2a106798d3765666f6e39ec6cf0117275eab4/internal/jobobject/jobobject.go#L410
|
|
if err = windows.QueryInformationJobObject(
|
|
jobObjectHandle,
|
|
JobObjectMemoryUsageInformation,
|
|
uintptr(unsafe.Pointer(&jobMemoryInfo)),
|
|
uint32(unsafe.Sizeof(jobMemoryInfo)),
|
|
nil,
|
|
); err != nil {
|
|
return fmt.Errorf("error in querying job object memory usage information: %w", err)
|
|
}
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.containerAvailable,
|
|
prometheus.GaugeValue,
|
|
1,
|
|
containerInfo.id, containerInfo.namespace, containerInfo.pod, containerInfo.container, "true",
|
|
)
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.usageCommitBytes,
|
|
prometheus.GaugeValue,
|
|
float64(jobMemoryInfo.JobMemory),
|
|
|
|
containerInfo.id, containerInfo.namespace, containerInfo.pod, containerInfo.container,
|
|
)
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.usageCommitPeakBytes,
|
|
prometheus.GaugeValue,
|
|
float64(jobMemoryInfo.PeakJobMemoryUsed),
|
|
|
|
containerInfo.id, containerInfo.namespace, containerInfo.pod, containerInfo.container,
|
|
)
|
|
|
|
if privateWorkingSetBytes, err := calculatePrivateWorkingSetBytes(jobObjectHandle); err != nil {
|
|
c.logger.Debug("error in calculating private working set bytes",
|
|
slog.String("container_id", containerID),
|
|
slog.Any("err", err),
|
|
)
|
|
} else {
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.usagePrivateWorkingSetBytes,
|
|
prometheus.GaugeValue,
|
|
float64(privateWorkingSetBytes),
|
|
|
|
containerInfo.id, containerInfo.namespace, containerInfo.pod, containerInfo.container,
|
|
)
|
|
}
|
|
|
|
// The ThisPeriod* times reset when a job time limit is set, so they are not monotonic.
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.runtimeTotal,
|
|
prometheus.CounterValue,
|
|
(float64(jobInfo.BasicInfo.TotalKernelTime)+float64(jobInfo.BasicInfo.TotalUserTime))*pdh.TicksToSecondScaleFactor,
|
|
|
|
containerInfo.id, containerInfo.namespace, containerInfo.pod, containerInfo.container,
|
|
)
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.runtimeUser,
|
|
prometheus.CounterValue,
|
|
float64(jobInfo.BasicInfo.TotalUserTime)*pdh.TicksToSecondScaleFactor,
|
|
|
|
containerInfo.id, containerInfo.namespace, containerInfo.pod, containerInfo.container,
|
|
)
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.runtimeKernel,
|
|
prometheus.CounterValue,
|
|
float64(jobInfo.BasicInfo.TotalKernelTime)*pdh.TicksToSecondScaleFactor,
|
|
|
|
containerInfo.id, containerInfo.namespace, containerInfo.pod, containerInfo.container,
|
|
)
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.readCountNormalized,
|
|
prometheus.CounterValue,
|
|
float64(jobInfo.IoInfo.ReadOperationCount),
|
|
|
|
containerInfo.id, containerInfo.namespace, containerInfo.pod, containerInfo.container,
|
|
)
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.readSizeBytes,
|
|
prometheus.CounterValue,
|
|
float64(jobInfo.IoInfo.ReadTransferCount),
|
|
|
|
containerInfo.id, containerInfo.namespace, containerInfo.pod, containerInfo.container,
|
|
)
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.writeCountNormalized,
|
|
prometheus.CounterValue,
|
|
float64(jobInfo.IoInfo.WriteOperationCount),
|
|
|
|
containerInfo.id, containerInfo.namespace, containerInfo.pod, containerInfo.container,
|
|
)
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.writeSizeBytes,
|
|
prometheus.CounterValue,
|
|
float64(jobInfo.IoInfo.WriteTransferCount),
|
|
|
|
containerInfo.id, containerInfo.namespace, containerInfo.pod, containerInfo.container,
|
|
)
|
|
|
|
return nil
|
|
}
|
|
|
|
func getContainerIdWithPrefix(container hcs.Properties) string {
|
|
switch container.Owner {
|
|
case "containerd-shim-runhcs-v1.exe":
|
|
return "containerd://" + container.ID
|
|
default:
|
|
// default to docker or if owner is not set
|
|
return "docker://" + container.ID
|
|
}
|
|
}
|
|
|
|
func calculatePrivateWorkingSetBytes(jobObjectHandle windows.Handle) (uint64, error) {
|
|
pids, err := kernel32.QueryJobObjectProcessIDs(jobObjectHandle)
|
|
if err != nil {
|
|
return 0, fmt.Errorf("error in querying job object process list: %w", err)
|
|
}
|
|
|
|
var privateWorkingSetBytes uint64
|
|
|
|
getMemoryStats := func(pid uint32) (uint64, error) {
|
|
processHandle, err := windows.OpenProcess(windows.PROCESS_QUERY_LIMITED_INFORMATION, false, pid)
|
|
if err != nil {
|
|
// The process exited after the process list was queried.
|
|
if errors.Is(err, windows.ERROR_INVALID_PARAMETER) {
|
|
return 0, nil
|
|
}
|
|
|
|
return 0, fmt.Errorf("error in opening process: %w", err)
|
|
}
|
|
|
|
defer func(fd windows.Handle) {
|
|
_ = windows.Close(fd)
|
|
}(processHandle)
|
|
|
|
// Guard against PID reuse between querying the list and opening the process.
|
|
isInJob, err := kernel32.IsProcessInJob(processHandle, jobObjectHandle)
|
|
if err != nil {
|
|
return 0, fmt.Errorf("error in checking if process is in job: %w", err)
|
|
}
|
|
|
|
if !isInJob {
|
|
return 0, nil
|
|
}
|
|
|
|
var vmCounters kernel32.PROCESS_VM_COUNTERS
|
|
|
|
retLen := uint32(unsafe.Sizeof(vmCounters))
|
|
|
|
if err := windows.NtQueryInformationProcess(
|
|
processHandle,
|
|
windows.ProcessVmCounters,
|
|
unsafe.Pointer(&vmCounters),
|
|
retLen,
|
|
&retLen,
|
|
); err != nil {
|
|
return 0, fmt.Errorf("error in querying process information: %w", err)
|
|
}
|
|
|
|
return uint64(vmCounters.PrivateWorkingSetSize), nil
|
|
}
|
|
|
|
for _, pid := range pids {
|
|
privateWorkingSetSize, err := getMemoryStats(pid)
|
|
if err != nil {
|
|
return 0, fmt.Errorf("error in getting private working set bytes: %w", err)
|
|
}
|
|
|
|
privateWorkingSetBytes += privateWorkingSetSize
|
|
}
|
|
|
|
return privateWorkingSetBytes, nil
|
|
}
|