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https://github.com/VictoriaMetrics/VictoriaMetrics.git
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8fc29ffc67
Previously multiple scrape jobs could create multiple watchers for the same apiURL. Now only a single watcher is used. This should reduce load on Kubernetes API server when many scrape job configs use Kubernetes service discovery.
63 lines
2.2 KiB
Go
63 lines
2.2 KiB
Go
package kubernetes
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import (
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"fmt"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/promauth"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/proxy"
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)
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// SDConfig represents kubernetes-based service discovery config.
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//
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// See https://prometheus.io/docs/prometheus/latest/configuration/configuration/#kubernetes_sd_config
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type SDConfig struct {
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APIServer string `yaml:"api_server,omitempty"`
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Role string `yaml:"role"`
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BasicAuth *promauth.BasicAuthConfig `yaml:"basic_auth,omitempty"`
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BearerToken string `yaml:"bearer_token,omitempty"`
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BearerTokenFile string `yaml:"bearer_token_file,omitempty"`
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ProxyURL proxy.URL `yaml:"proxy_url,omitempty"`
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TLSConfig *promauth.TLSConfig `yaml:"tls_config,omitempty"`
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Namespaces Namespaces `yaml:"namespaces,omitempty"`
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Selectors []Selector `yaml:"selectors,omitempty"`
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}
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// Namespaces represents namespaces for SDConfig
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type Namespaces struct {
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Names []string `yaml:"names"`
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}
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// Selector represents kubernetes selector.
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//
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// See https://kubernetes.io/docs/concepts/overview/working-with-objects/field-selectors/
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// and https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/
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type Selector struct {
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Role string `yaml:"role"`
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Label string `yaml:"label"`
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Field string `yaml:"field"`
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}
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// ScrapeWorkConstructorFunc must construct ScrapeWork object for the given metaLabels.
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type ScrapeWorkConstructorFunc func(metaLabels map[string]string) interface{}
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// GetScrapeWorkObjects returns ScrapeWork objects for the given sdc and baseDir.
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//
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// swcFunc is used for constructing such objects.
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func (sdc *SDConfig) GetScrapeWorkObjects(baseDir string, swcFunc ScrapeWorkConstructorFunc) ([]interface{}, error) {
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cfg, err := getAPIConfig(sdc, baseDir, swcFunc)
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if err != nil {
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return nil, fmt.Errorf("cannot create API config: %w", err)
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}
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return cfg.aw.getScrapeWorkObjects(), nil
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}
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// MustStop stops further usage for sdc.
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func (sdc *SDConfig) MustStop() {
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v := configMap.Delete(sdc)
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if v != nil {
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// v can be nil if GetLabels wasn't called yet.
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cfg := v.(*apiConfig)
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cfg.mustStop()
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}
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}
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