VictoriaMetrics/lib/promscrape/discovery/gce/gce.go
Aliaksandr Valialkin 3c02937a34
all: consistently use 'any' instead of 'interface{}'
'any' type is supported starting from Go1.18. Let's consistently use it
instead of 'interface{}' type across the code base, since `any` is easier to read than 'interface{}'.
2024-07-10 00:20:37 +02:00

82 lines
2.2 KiB
Go

package gce
import (
"flag"
"fmt"
"time"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/promutils"
)
// SDCheckInterval defines interval for targets refresh.
var SDCheckInterval = flag.Duration("promscrape.gceSDCheckInterval", time.Minute, "Interval for checking for changes in gce. "+
"This works only if gce_sd_configs is configured in '-promscrape.config' file. "+
"See https://docs.victoriametrics.com/sd_configs/#gce_sd_configs for details")
// SDConfig represents service discovery config for gce.
//
// See https://prometheus.io/docs/prometheus/latest/configuration/configuration/#gce_sd_config
type SDConfig struct {
Project string `yaml:"project"`
Zone ZoneYAML `yaml:"zone"`
Filter string `yaml:"filter,omitempty"`
// RefreshInterval time.Duration `yaml:"refresh_interval"`
// refresh_interval is obtained from `-promscrape.gceSDCheckInterval` command-line option.
Port *int `yaml:"port,omitempty"`
TagSeparator *string `yaml:"tag_separator,omitempty"`
}
// ZoneYAML holds info about zones.
type ZoneYAML struct {
Zones []string
}
// UnmarshalYAML implements yaml.Unmarshaler
func (z *ZoneYAML) UnmarshalYAML(unmarshal func(any) error) error {
var v any
if err := unmarshal(&v); err != nil {
return err
}
var zones []string
switch t := v.(type) {
case string:
zones = []string{t}
case []any:
for _, vv := range t {
zone, ok := vv.(string)
if !ok {
return fmt.Errorf("unexpected zone type detected: %T; contents: %#v", vv, vv)
}
zones = append(zones, zone)
}
default:
return fmt.Errorf("unexpected type unmarshaled for ZoneYAML: %T; contents: %#v", v, v)
}
z.Zones = zones
return nil
}
// MarshalYAML implements yaml.Marshaler
func (z ZoneYAML) MarshalYAML() (any, error) {
return z.Zones, nil
}
// GetLabels returns gce labels according to sdc.
func (sdc *SDConfig) GetLabels(_ string) ([]*promutils.Labels, error) {
cfg, err := getAPIConfig(sdc)
if err != nil {
return nil, fmt.Errorf("cannot get API config: %w", err)
}
ms := getInstancesLabels(cfg)
return ms, nil
}
// MustStop stops further usage for sdc.
func (sdc *SDConfig) MustStop() {
v := configMap.Delete(sdc)
if v != nil {
cfg := v.(*apiConfig)
cfg.client.CloseIdleConnections()
}
}