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heartbeat.go
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/
heartbeat.go
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package workerserver
import (
"encoding/json"
"fmt"
"net/http"
"time"
"github.com/pf-qiu/concourse/v6/atc"
"github.com/pf-qiu/concourse/v6/atc/api/present"
"github.com/pf-qiu/concourse/v6/atc/db"
"github.com/pf-qiu/concourse/v6/atc/metric"
)
func (s *Server) HeartbeatWorker(w http.ResponseWriter, r *http.Request) {
var (
registration atc.Worker
ttl time.Duration
err error
)
logger := s.logger.Session("heartbeat-worker")
workerName := r.FormValue(":worker_name")
ttlStr := r.URL.Query().Get("ttl")
if len(ttlStr) > 0 {
ttl, err = time.ParseDuration(ttlStr)
if err != nil {
logger.Error("failed-to-parse-ttl", err)
w.WriteHeader(http.StatusBadRequest)
fmt.Fprint(w, "malformed ttl")
return
}
}
err = json.NewDecoder(r.Body).Decode(®istration)
if err != nil {
w.WriteHeader(http.StatusBadRequest)
return
}
registration.Name = workerName
metric.WorkerContainers{
WorkerName: registration.Name,
Containers: registration.ActiveContainers,
Platform: registration.Platform,
TeamName: registration.Team,
Tags: registration.Tags,
}.Emit(s.logger)
metric.WorkerVolumes{
WorkerName: registration.Name,
Volumes: registration.ActiveVolumes,
Platform: registration.Platform,
TeamName: registration.Team,
Tags: registration.Tags,
}.Emit(s.logger)
savedWorker, err := s.dbWorkerFactory.HeartbeatWorker(registration, ttl)
if err == db.ErrWorkerNotPresent {
logger.Error("failed-to-find-worker", err)
w.WriteHeader(http.StatusNotFound)
return
}
if err != nil {
logger.Error("failed-to-heartbeat-worker", err)
w.WriteHeader(http.StatusInternalServerError)
return
}
activeTasks, err := savedWorker.ActiveTasks()
if err != nil {
logger.Info("failed-to-get-worker-active-tasks")
}
metric.WorkerTasks{
WorkerName: registration.Name,
Tasks: activeTasks,
Platform: registration.Platform,
}.Emit(s.logger)
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(http.StatusOK)
err = json.NewEncoder(w).Encode(present.Worker(savedWorker))
if err != nil {
logger.Error("failed-to-encode-worker", err)
w.WriteHeader(http.StatusInternalServerError)
}
}