VictoriaMetrics/lib/promscrape/discovery/docker/dockerswarm.go
Lu Jiajing c85a5b7fcb
Support Docker ServiceDiscovery (#1402)
* add docker discovery

* add test

* add labels test and add scrape work

* remove TODO

* refactor to merge apiConfig and sdConfig

* apply suggestion
2021-06-25 11:42:47 +03:00

37 lines
1.1 KiB
Go

package docker
import (
"fmt"
)
// DockerSwarmSDConfig represents docker swarm service discovery configuration
//
// See https://prometheus.io/docs/prometheus/latest/configuration/configuration/#dockerswarm_sd_config
type DockerSwarmSDConfig struct {
Role string `yaml:"role"`
DockerSDConfig `yaml:",inline"`
// refresh_interval is obtained from `-promscrape.dockerswarmSDCheckInterval` command-line option
}
// GetLabels returns dockerswarm labels according to sdc.
func (sdc *DockerSwarmSDConfig) GetLabels(baseDir string) ([]map[string]string, error) {
cfg, err := getAPIConfigFromDockerSwarmSDConfig(sdc, baseDir)
if err != nil {
return nil, fmt.Errorf("cannot get API config: %w", err)
}
switch sdc.Role {
case "tasks":
return getTasksLabels(cfg)
case "services":
return getServicesLabels(cfg)
case "nodes":
return getNodesLabels(cfg)
default:
return nil, fmt.Errorf("unexpected `role`: %q; must be one of `tasks`, `services` or `nodes`; skipping it", sdc.Role)
}
}
// MustStop stops further usage for sdc.
func (sdc *DockerSwarmSDConfig) MustStop() {
configMap.Delete(sdc)
}