container: add support for uploading to registries
Add a new generic container registry client via a new `container` package. Use this to create a command line utility as well as a new upload target for container registries. The code uses the github.com/containers/* project and packages to interact with container registires that is also used by skopeo, podman et al. One if the dependencies is `proglottis/gpgme` that is using cgo to bind libgpgme, so we have to add the corresponding devel package to the BuildRequires as well as installing it on CI. Checks will follow later via an integration test.
This commit is contained in:
Christian Kellner
parent
d136a075bc
commit
986f076276
955 changed files with 164203 additions and 2549 deletions
315
vendor/github.com/docker/go-metrics/namespace.go
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315
vendor/github.com/docker/go-metrics/namespace.go
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package metrics
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import (
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"fmt"
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"sync"
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"github.com/prometheus/client_golang/prometheus"
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)
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type Labels map[string]string
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// NewNamespace returns a namespaces that is responsible for managing a collection of
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// metrics for a particual namespace and subsystem
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//
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// labels allows const labels to be added to all metrics created in this namespace
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// and are commonly used for data like application version and git commit
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func NewNamespace(name, subsystem string, labels Labels) *Namespace {
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if labels == nil {
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labels = make(map[string]string)
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}
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return &Namespace{
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name: name,
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subsystem: subsystem,
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labels: labels,
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}
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}
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// Namespace describes a set of metrics that share a namespace and subsystem.
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type Namespace struct {
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name string
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subsystem string
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labels Labels
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mu sync.Mutex
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metrics []prometheus.Collector
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}
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// WithConstLabels returns a namespace with the provided set of labels merged
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// with the existing constant labels on the namespace.
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//
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// Only metrics created with the returned namespace will get the new constant
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// labels. The returned namespace must be registered separately.
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func (n *Namespace) WithConstLabels(labels Labels) *Namespace {
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n.mu.Lock()
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ns := &Namespace{
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name: n.name,
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subsystem: n.subsystem,
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labels: mergeLabels(n.labels, labels),
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}
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n.mu.Unlock()
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return ns
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}
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func (n *Namespace) NewCounter(name, help string) Counter {
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c := &counter{pc: prometheus.NewCounter(n.newCounterOpts(name, help))}
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n.Add(c)
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return c
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}
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func (n *Namespace) NewLabeledCounter(name, help string, labels ...string) LabeledCounter {
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c := &labeledCounter{pc: prometheus.NewCounterVec(n.newCounterOpts(name, help), labels)}
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n.Add(c)
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return c
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}
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func (n *Namespace) newCounterOpts(name, help string) prometheus.CounterOpts {
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return prometheus.CounterOpts{
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Namespace: n.name,
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Subsystem: n.subsystem,
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Name: makeName(name, Total),
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Help: help,
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ConstLabels: prometheus.Labels(n.labels),
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}
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}
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func (n *Namespace) NewTimer(name, help string) Timer {
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t := &timer{
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m: prometheus.NewHistogram(n.newTimerOpts(name, help)),
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}
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n.Add(t)
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return t
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}
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func (n *Namespace) NewLabeledTimer(name, help string, labels ...string) LabeledTimer {
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t := &labeledTimer{
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m: prometheus.NewHistogramVec(n.newTimerOpts(name, help), labels),
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}
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n.Add(t)
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return t
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}
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func (n *Namespace) newTimerOpts(name, help string) prometheus.HistogramOpts {
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return prometheus.HistogramOpts{
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Namespace: n.name,
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Subsystem: n.subsystem,
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Name: makeName(name, Seconds),
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Help: help,
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ConstLabels: prometheus.Labels(n.labels),
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}
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}
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func (n *Namespace) NewGauge(name, help string, unit Unit) Gauge {
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g := &gauge{
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pg: prometheus.NewGauge(n.newGaugeOpts(name, help, unit)),
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}
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n.Add(g)
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return g
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}
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func (n *Namespace) NewLabeledGauge(name, help string, unit Unit, labels ...string) LabeledGauge {
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g := &labeledGauge{
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pg: prometheus.NewGaugeVec(n.newGaugeOpts(name, help, unit), labels),
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}
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n.Add(g)
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return g
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}
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func (n *Namespace) newGaugeOpts(name, help string, unit Unit) prometheus.GaugeOpts {
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return prometheus.GaugeOpts{
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Namespace: n.name,
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Subsystem: n.subsystem,
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Name: makeName(name, unit),
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Help: help,
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ConstLabels: prometheus.Labels(n.labels),
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}
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}
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func (n *Namespace) Describe(ch chan<- *prometheus.Desc) {
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n.mu.Lock()
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defer n.mu.Unlock()
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for _, metric := range n.metrics {
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metric.Describe(ch)
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}
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}
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func (n *Namespace) Collect(ch chan<- prometheus.Metric) {
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n.mu.Lock()
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defer n.mu.Unlock()
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for _, metric := range n.metrics {
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metric.Collect(ch)
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}
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}
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func (n *Namespace) Add(collector prometheus.Collector) {
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n.mu.Lock()
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n.metrics = append(n.metrics, collector)
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n.mu.Unlock()
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}
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func (n *Namespace) NewDesc(name, help string, unit Unit, labels ...string) *prometheus.Desc {
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name = makeName(name, unit)
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namespace := n.name
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if n.subsystem != "" {
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namespace = fmt.Sprintf("%s_%s", namespace, n.subsystem)
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}
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name = fmt.Sprintf("%s_%s", namespace, name)
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return prometheus.NewDesc(name, help, labels, prometheus.Labels(n.labels))
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}
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// mergeLabels merges two or more labels objects into a single map, favoring
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// the later labels.
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func mergeLabels(lbs ...Labels) Labels {
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merged := make(Labels)
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for _, target := range lbs {
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for k, v := range target {
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merged[k] = v
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}
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}
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return merged
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}
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func makeName(name string, unit Unit) string {
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if unit == "" {
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return name
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}
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return fmt.Sprintf("%s_%s", name, unit)
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}
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func (n *Namespace) NewDefaultHttpMetrics(handlerName string) []*HTTPMetric {
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return n.NewHttpMetricsWithOpts(handlerName, HTTPHandlerOpts{
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DurationBuckets: defaultDurationBuckets,
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RequestSizeBuckets: defaultResponseSizeBuckets,
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ResponseSizeBuckets: defaultResponseSizeBuckets,
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})
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}
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func (n *Namespace) NewHttpMetrics(handlerName string, durationBuckets, requestSizeBuckets, responseSizeBuckets []float64) []*HTTPMetric {
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return n.NewHttpMetricsWithOpts(handlerName, HTTPHandlerOpts{
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DurationBuckets: durationBuckets,
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RequestSizeBuckets: requestSizeBuckets,
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ResponseSizeBuckets: responseSizeBuckets,
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})
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}
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func (n *Namespace) NewHttpMetricsWithOpts(handlerName string, opts HTTPHandlerOpts) []*HTTPMetric {
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var httpMetrics []*HTTPMetric
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inFlightMetric := n.NewInFlightGaugeMetric(handlerName)
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requestTotalMetric := n.NewRequestTotalMetric(handlerName)
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requestDurationMetric := n.NewRequestDurationMetric(handlerName, opts.DurationBuckets)
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requestSizeMetric := n.NewRequestSizeMetric(handlerName, opts.RequestSizeBuckets)
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responseSizeMetric := n.NewResponseSizeMetric(handlerName, opts.ResponseSizeBuckets)
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httpMetrics = append(httpMetrics, inFlightMetric, requestDurationMetric, requestTotalMetric, requestSizeMetric, responseSizeMetric)
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return httpMetrics
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}
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func (n *Namespace) NewInFlightGaugeMetric(handlerName string) *HTTPMetric {
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labels := prometheus.Labels(n.labels)
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labels["handler"] = handlerName
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metric := prometheus.NewGauge(prometheus.GaugeOpts{
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Namespace: n.name,
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Subsystem: n.subsystem,
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Name: "in_flight_requests",
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Help: "The in-flight HTTP requests",
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ConstLabels: prometheus.Labels(labels),
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})
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httpMetric := &HTTPMetric{
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Collector: metric,
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handlerType: InstrumentHandlerInFlight,
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}
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n.Add(httpMetric)
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return httpMetric
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}
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func (n *Namespace) NewRequestTotalMetric(handlerName string) *HTTPMetric {
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labels := prometheus.Labels(n.labels)
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labels["handler"] = handlerName
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metric := prometheus.NewCounterVec(
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prometheus.CounterOpts{
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Namespace: n.name,
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Subsystem: n.subsystem,
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Name: "requests_total",
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Help: "Total number of HTTP requests made.",
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ConstLabels: prometheus.Labels(labels),
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},
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[]string{"code", "method"},
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)
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httpMetric := &HTTPMetric{
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Collector: metric,
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handlerType: InstrumentHandlerCounter,
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}
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n.Add(httpMetric)
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return httpMetric
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}
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func (n *Namespace) NewRequestDurationMetric(handlerName string, buckets []float64) *HTTPMetric {
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if len(buckets) == 0 {
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panic("DurationBuckets must be provided")
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}
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labels := prometheus.Labels(n.labels)
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labels["handler"] = handlerName
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opts := prometheus.HistogramOpts{
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Namespace: n.name,
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Subsystem: n.subsystem,
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Name: "request_duration_seconds",
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Help: "The HTTP request latencies in seconds.",
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Buckets: buckets,
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ConstLabels: prometheus.Labels(labels),
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}
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metric := prometheus.NewHistogramVec(opts, []string{"method"})
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httpMetric := &HTTPMetric{
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Collector: metric,
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handlerType: InstrumentHandlerDuration,
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}
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n.Add(httpMetric)
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return httpMetric
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}
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func (n *Namespace) NewRequestSizeMetric(handlerName string, buckets []float64) *HTTPMetric {
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if len(buckets) == 0 {
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panic("RequestSizeBuckets must be provided")
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}
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labels := prometheus.Labels(n.labels)
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labels["handler"] = handlerName
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opts := prometheus.HistogramOpts{
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Namespace: n.name,
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Subsystem: n.subsystem,
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Name: "request_size_bytes",
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Help: "The HTTP request sizes in bytes.",
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Buckets: buckets,
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ConstLabels: prometheus.Labels(labels),
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}
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metric := prometheus.NewHistogramVec(opts, []string{})
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httpMetric := &HTTPMetric{
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Collector: metric,
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handlerType: InstrumentHandlerRequestSize,
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}
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n.Add(httpMetric)
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return httpMetric
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}
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func (n *Namespace) NewResponseSizeMetric(handlerName string, buckets []float64) *HTTPMetric {
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if len(buckets) == 0 {
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panic("ResponseSizeBuckets must be provided")
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}
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labels := prometheus.Labels(n.labels)
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labels["handler"] = handlerName
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opts := prometheus.HistogramOpts{
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Namespace: n.name,
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Subsystem: n.subsystem,
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Name: "response_size_bytes",
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Help: "The HTTP response sizes in bytes.",
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Buckets: buckets,
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ConstLabels: prometheus.Labels(labels),
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}
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metrics := prometheus.NewHistogramVec(opts, []string{})
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httpMetric := &HTTPMetric{
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Collector: metrics,
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handlerType: InstrumentHandlerResponseSize,
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}
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n.Add(httpMetric)
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return httpMetric
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}
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