VictoriaMetrics/lib/promscrape/discovery/docker/docker.go

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package docker
import (
"flag"
"fmt"
"time"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/promauth"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/promutils"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/proxy"
)
// SDCheckInterval defines interval for docker targets refresh.
var SDCheckInterval = flag.Duration("promscrape.dockerSDCheckInterval", 30*time.Second, "Interval for checking for changes in docker. "+
"This works only if docker_sd_configs is configured in '-promscrape.config' file. "+
"See https://docs.victoriametrics.com/sd_configs.html#docker_sd_configs for details")
// SDConfig defines the `docker_sd` section for Docker based discovery
//
// See https://prometheus.io/docs/prometheus/latest/configuration/configuration/#docker_sd_config
type SDConfig struct {
Host string `yaml:"host"`
Port int `yaml:"port,omitempty"`
Filters []Filter `yaml:"filters,omitempty"`
HostNetworkingHost string `yaml:"host_networking_host,omitempty"`
HTTPClientConfig promauth.HTTPClientConfig `yaml:",inline"`
ProxyURL *proxy.URL `yaml:"proxy_url,omitempty"`
ProxyClientConfig promauth.ProxyClientConfig `yaml:",inline"`
// refresh_interval is obtained from `-promscrape.dockerSDCheckInterval` command-line option
}
// Filter is a filter, which can be passed to SDConfig.
type Filter struct {
Name string `yaml:"name"`
Values []string `yaml:"values"`
}
// GetLabels returns docker labels according to sdc.
func (sdc *SDConfig) GetLabels(baseDir string) ([]*promutils.Labels, error) {
cfg, err := getAPIConfig(sdc, baseDir)
if err != nil {
return nil, fmt.Errorf("cannot get API config: %w", err)
}
return getContainersLabels(cfg)
}
// MustStop stops further usage for sdc.
func (sdc *SDConfig) MustStop() {
configMap.Delete(sdc)
}