crowdsec/pkg/apiclient/heartbeat.go

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package apiclient
import (
"context"
"fmt"
"net/http"
"time"
log "github.com/sirupsen/logrus"
tomb "gopkg.in/tomb.v2"
"github.com/crowdsecurity/go-cs-lib/trace"
)
type HeartBeatService service
func (h *HeartBeatService) Ping(ctx context.Context) (bool, *Response, error) {
u := fmt.Sprintf("%s/heartbeat", h.client.URLPrefix)
req, err := h.client.NewRequest(http.MethodGet, u, nil)
if err != nil {
return false, nil, err
}
resp, err := h.client.Do(ctx, req, nil)
if err != nil {
return false, resp, err
}
return true, resp, nil
}
func (h *HeartBeatService) StartHeartBeat(ctx context.Context, t *tomb.Tomb) {
t.Go(func() error {
defer trace.CatchPanic("crowdsec/apiClient/heartbeat")
hbTimer := time.NewTicker(1 * time.Minute)
for {
select {
case <-hbTimer.C:
log.Debug("heartbeat: sending heartbeat")
ok, resp, err := h.Ping(ctx)
if err != nil {
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log.Errorf("heartbeat error: %s", err)
continue
}
resp.Response.Body.Close()
if resp.Response.StatusCode != http.StatusOK {
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log.Errorf("heartbeat unexpected return code: %d", resp.Response.StatusCode)
continue
}
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if !ok {
log.Errorf("heartbeat returned false")
continue
}
case <-t.Dying():
log.Debugf("heartbeat: stopping")
hbTimer.Stop()
return nil
}
}
})
}