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434f22f871
- Add a comment describing the purpose of the `role` field inside `apiConfig` struct - Revert changes at lib/promscrape/discovery/dockerswarm/dockerswarm.go , since they reduce code readability. E.g. the reader needs to look up the named string constants in order to get their values.
61 lines
2.0 KiB
Go
61 lines
2.0 KiB
Go
package dockerswarm
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import (
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"flag"
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"fmt"
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"time"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/promauth"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/promutils"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/proxy"
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)
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// SDCheckInterval defines interval for dockerswarm targets refresh.
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var SDCheckInterval = flag.Duration("promscrape.dockerswarmSDCheckInterval", 30*time.Second, "Interval for checking for changes in dockerswarm. "+
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"This works only if dockerswarm_sd_configs is configured in '-promscrape.config' file. "+
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"See https://docs.victoriametrics.com/sd_configs.html#dockerswarm_sd_configs for details")
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// SDConfig represents docker swarm service discovery configuration
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//
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// See https://prometheus.io/docs/prometheus/latest/configuration/configuration/#dockerswarm_sd_config
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type SDConfig struct {
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Host string `yaml:"host"`
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Role string `yaml:"role"`
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Port int `yaml:"port,omitempty"`
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Filters []Filter `yaml:"filters,omitempty"`
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HTTPClientConfig promauth.HTTPClientConfig `yaml:",inline"`
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ProxyURL *proxy.URL `yaml:"proxy_url,omitempty"`
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ProxyClientConfig promauth.ProxyClientConfig `yaml:",inline"`
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// refresh_interval is obtained from `-promscrape.dockerswarmSDCheckInterval` command-line option
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}
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// Filter is a filter, which can be passed to SDConfig.
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type Filter struct {
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Name string `yaml:"name"`
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Values []string `yaml:"values"`
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}
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// GetLabels returns dockerswarm labels according to sdc.
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func (sdc *SDConfig) GetLabels(baseDir string) ([]*promutils.Labels, error) {
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cfg, err := getAPIConfig(sdc, baseDir)
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if err != nil {
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return nil, fmt.Errorf("cannot get API config: %w", err)
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}
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switch sdc.Role {
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case "tasks":
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return getTasksLabels(cfg)
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case "services":
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return getServicesLabels(cfg)
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case "nodes":
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return getNodesLabels(cfg)
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default:
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return nil, fmt.Errorf("unexpected `role`: %q; must be one of `tasks`, `services` or `nodes`; skipping it", sdc.Role)
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}
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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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configMap.Delete(sdc)
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}
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