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https://github.com/VictoriaMetrics/VictoriaMetrics.git
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b099d84271
* Initial rules evaluation support. Rules are now store alerts state in private field `alerts`. Every evaluation updates the alerts and state. Every unique metric received from datastore represents a unique alert, uniqueness is guaranteed by hashing ordered labelset. * merge with master * cleanup * support endAt parameter as 3*evaluationInterval for active alerts * make golint happy
52 lines
1.3 KiB
Go
52 lines
1.3 KiB
Go
package notifier
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import (
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"bytes"
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"fmt"
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"io/ioutil"
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"net/http"
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"strings"
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)
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// AlertManager represents integration provider with Prometheus alert manager
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// https://github.com/prometheus/alertmanager
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type AlertManager struct {
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alertURL string
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argFunc AlertURLGenerator
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client *http.Client
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}
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// Send an alert or resolve message
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func (am *AlertManager) Send(alerts []Alert) error {
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b := &bytes.Buffer{}
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writeamRequest(b, alerts, am.argFunc)
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resp, err := am.client.Post(am.alertURL, "application/json", b)
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if err != nil {
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return err
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}
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defer func() { _ = resp.Body.Close() }()
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if resp.StatusCode != http.StatusOK {
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body, err := ioutil.ReadAll(resp.Body)
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if err != nil {
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return fmt.Errorf("failed to read response from %q: %s", am.alertURL, err)
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}
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return fmt.Errorf("invalid SC %d from %q; response body: %s", resp.StatusCode, am.alertURL, string(body))
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}
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return nil
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}
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// AlertURLGenerator returns URL to single alert by given name
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type AlertURLGenerator func(group, name string) string
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const alertManagerPath = "/api/v2/alerts"
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// NewAlertManager is a constructor for AlertManager
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func NewAlertManager(alertManagerURL string, fn AlertURLGenerator, c *http.Client) *AlertManager {
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return &AlertManager{
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alertURL: strings.TrimSuffix(alertManagerURL, "/") + alertManagerPath,
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argFunc: fn,
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client: c,
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}
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}
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