func (db *ETCDDB) resolveActualsWithMissingCells(logger lager.Logger, desired *models.DesiredLRP, actual *models.ActualLRP, starts *startRequests) func() {
return func() {
logger = logger.Session("start-missing-actual", lager.Data{
"process-guid": actual.ProcessGuid,
"index": actual.Index,
})
logger.Debug("removing-actual-lrp")
removeErr := db.RemoveActualLRP(logger, actual.ActualLRPKey.ProcessGuid, actual.ActualLRPKey.Index)
if removeErr != nil {
logger.Error("failed-removing-actual-lrp", removeErr)
return
}
logger.Debug("succeeded-removing-actual-lrp")
if actual.Index >= desired.Instances {
return
}
logger.Debug("creating-actual-lrp")
err := db.createActualLRP(logger, desired, actual.Index)
if err != nil {
logger.Error("failed-creating-actual-lrp", err)
return
}
logger.Debug("succeeded-creating-actual-lrp")
starts.Add(logger, &actual.ActualLRPKey)
}
}
func configure(logger lager.Logger) (*ssh.ServerConfig, error) {
errorStrings := []string{}
sshConfig := &ssh.ServerConfig{}
key, err := acquireHostKey(logger)
if err != nil {
logger.Error("failed-to-acquire-host-key", err)
errorStrings = append(errorStrings, err.Error())
}
sshConfig.AddHostKey(key)
sshConfig.NoClientAuth = *allowUnauthenticatedClients
if *authorizedKey == "" && !*allowUnauthenticatedClients {
logger.Error("authorized-key-required", nil)
errorStrings = append(errorStrings, "Public user key is required")
}
if *authorizedKey != "" {
decodedPublicKey, err := decodeAuthorizedKey(logger)
if err == nil {
authenticator := authenticators.NewPublicKeyAuthenticator(decodedPublicKey)
sshConfig.PublicKeyCallback = authenticator.Authenticate
} else {
errorStrings = append(errorStrings, err.Error())
}
}
err = nil
if len(errorStrings) > 0 {
err = errors.New(strings.Join(errorStrings, ", "))
}
return sshConfig, err
}
func (s *Scheduler) TriggerImmediately(logger lager.Logger, job atc.JobConfig, resources atc.ResourceConfigs, resourceTypes atc.ResourceTypes) (db.Build, Waiter, error) {
logger = logger.Session("trigger-immediately")
build, err := s.PipelineDB.CreateJobBuild(job.Name)
if err != nil {
logger.Error("failed-to-create-build", err)
return db.Build{}, nil, err
}
jobService, err := NewJobService(job, s.PipelineDB, s.Scanner)
if err != nil {
return db.Build{}, nil, err
}
wg := new(sync.WaitGroup)
wg.Add(1)
// do not block request on scanning input versions
go func() {
defer wg.Done()
s.ScheduleAndResumePendingBuild(logger, nil, build, job, resources, resourceTypes, jobService)
}()
return build, wg, nil
}
func ProxyRequests(logger lager.Logger, channelType string, reqs <-chan *ssh.Request, channel ssh.Channel) {
logger = logger.Session("proxy-requests", lager.Data{
"channel-type": channelType,
})
logger.Info("started")
defer logger.Info("completed")
defer channel.Close()
for req := range reqs {
logger.Info("request", lager.Data{
"type": req.Type,
"wantReply": req.WantReply,
"payload": req.Payload,
})
success, err := channel.SendRequest(req.Type, req.WantReply, req.Payload)
if err != nil {
logger.Error("send-request-failed", err)
continue
}
if req.WantReply {
req.Reply(success, nil)
}
}
}
func (build *execBuild) Resume(logger lager.Logger) {
stepFactory := build.buildStepFactory(logger, build.metadata.Plan)
source := stepFactory.Using(&exec.NoopStep{}, exec.NewSourceRepository())
defer source.Release()
process := ifrit.Background(source)
exited := process.Wait()
aborted := false
var succeeded exec.Success
for {
select {
case err := <-exited:
if aborted {
succeeded = false
} else if !source.Result(&succeeded) {
logger.Error("step-had-no-result", errors.New("step failed to provide us with a result"))
succeeded = false
}
build.delegate.Finish(logger.Session("finish"), err, succeeded, aborted)
return
case sig := <-build.signals:
process.Signal(sig)
if sig == os.Kill {
aborted = true
}
}
}
}
func (db *serviceClient) Cells(logger lager.Logger) (models.CellSet, error) {
kvPairs, _, err := db.consulClient.KV().List(CellSchemaRoot(), nil)
if err != nil {
bbsErr := models.ConvertError(convertConsulError(err))
if bbsErr.Type != models.Error_ResourceNotFound {
return nil, bbsErr
}
}
if kvPairs == nil {
err = consuladapter.NewPrefixNotFoundError(CellSchemaRoot())
bbsErr := models.ConvertError(convertConsulError(err))
if bbsErr.Type != models.Error_ResourceNotFound {
return nil, bbsErr
}
}
cellPresences := models.NewCellSet()
for _, kvPair := range kvPairs {
if kvPair.Session == "" {
continue
}
cell := kvPair.Value
presence := new(models.CellPresence)
err := models.FromJSON(cell, presence)
if err != nil {
logger.Error("failed-to-unmarshal-cells-json", err)
continue
}
cellPresences.Add(presence)
}
return cellPresences, nil
}
func initializeDropsonde(logger lager.Logger) {
dropsondeDestination := fmt.Sprint("localhost:", *dropsondePort)
err := dropsonde.Initialize(dropsondeDestination, dropsondeOrigin)
if err != nil {
logger.Error("failed to initialize dropsonde: %v", err)
}
}
func (db *ETCDDB) resolveRestartableCrashedActualLRPS(logger lager.Logger, actualLRP *models.ActualLRP, starts *startRequests) func() {
return func() {
actualKey := actualLRP.ActualLRPKey
logger = logger.Session("restart-crash", lager.Data{
"process_guid": actualKey.ProcessGuid,
"index": actualKey.Index,
})
if actualLRP.State != models.ActualLRPStateCrashed {
logger.Error("failed-actual-lrp-state-is-not-crashed", nil)
return
}
logger.Debug("unclaiming-actual-lrp", lager.Data{"process_guid": actualLRP.ActualLRPKey.ProcessGuid, "index": actualLRP.ActualLRPKey.Index})
_, err := db.unclaimActualLRP(logger, &actualLRP.ActualLRPKey, &actualLRP.ActualLRPInstanceKey)
if err != nil {
logger.Error("failed-unclaiming-crash", err)
return
}
logger.Debug("succeeded-unclaiming-actual-lrp")
starts.Add(logger, &actualKey)
}
}
func (h *DesireAppHandler) createDesiredApp(
logger lager.Logger,
desireAppMessage cc_messages.DesireAppRequestFromCC,
) error {
var builder recipebuilder.RecipeBuilder = h.recipeBuilders["buildpack"]
if desireAppMessage.DockerImageUrl != "" {
builder = h.recipeBuilders["docker"]
}
desiredLRP, err := builder.Build(&desireAppMessage)
if err != nil {
logger.Error("failed-to-build-recipe", err)
return err
}
logger.Debug("creating-desired-lrp", lager.Data{"routes": sanitizeRoutes(desiredLRP.Routes)})
err = h.bbsClient.DesireLRP(desiredLRP)
if err != nil {
logger.Error("failed-to-create-lrp", err)
return err
}
logger.Debug("created-desired-lrp")
return nil
}
func (db *ETCDDB) ConvergeLRPs(logger lager.Logger, cellSet models.CellSet) ([]*auctioneer.LRPStartRequest, []*models.ActualLRPKeyWithSchedulingInfo, []*models.ActualLRPKey) {
convergeStart := db.clock.Now()
convergeLRPRunsCounter.Increment()
logger = logger.Session("etcd")
logger.Info("starting-convergence")
defer logger.Info("finished-convergence")
defer func() {
err := convergeLRPDuration.Send(time.Since(convergeStart))
if err != nil {
logger.Error("failed-sending-converge-lrp-duration-metric", err)
}
}()
logger.Debug("gathering-convergence-input")
input, err := db.GatherAndPruneLRPs(logger, cellSet)
if err != nil {
logger.Error("failed-gathering-convergence-input", err)
return nil, nil, nil
}
logger.Debug("succeeded-gathering-convergence-input")
changes := CalculateConvergence(logger, db.clock, models.NewDefaultRestartCalculator(), input)
return db.ResolveConvergence(logger, input.DesiredLRPs, changes)
}
func (db *ETCDDB) batchDeleteNodes(keys []string, logger lager.Logger) {
if len(keys) == 0 {
return
}
works := []func(){}
for _, key := range keys {
key := key
works = append(works, func() {
logger.Info("deleting", lager.Data{"key": key})
_, err := db.client.Delete(key, true)
if err != nil {
logger.Error("failed-to-delete", err, lager.Data{
"key": key,
})
}
})
}
throttler, err := workpool.NewThrottler(db.convergenceWorkersSize, works)
if err != nil {
logger.Error("failed-to-create-throttler", err)
}
throttler.Work()
return
}
func (s *Scheduler) TryNextPendingBuild(logger lager.Logger, job atc.JobConfig, resources atc.ResourceConfigs) Waiter {
logger = logger.Session("try-next-pending")
wg := new(sync.WaitGroup)
wg.Add(1)
go func() {
defer wg.Done()
build, err := s.PipelineDB.GetNextPendingBuild(job.Name)
if err != nil {
if err == db.ErrNoBuild {
return
}
logger.Error("failed-to-get-next-pending-build", err)
return
}
s.scheduleAndResumePendingBuild(logger, build, job, resources)
}()
return wg
}
func provision(serviceBroker ServiceBroker, router httpRouter, logger lager.Logger) http.HandlerFunc {
return func(w http.ResponseWriter, req *http.Request) {
vars := router.Vars(req)
instanceID := vars["instance_id"]
acceptsIncomplete := false
if req.URL.Query().Get("accepts_incomplete") == "true" {
acceptsIncomplete = true
}
logger := logger.Session(provisionLogKey, lager.Data{
instanceIDLogKey: instanceID,
})
var details ProvisionDetails
if err := json.NewDecoder(req.Body).Decode(&details); err != nil {
logger.Error(invalidProvisionDetailsErrorKey, err)
respond(w, http.StatusBadRequest, ErrorResponse{
Description: err.Error(),
})
return
}
logger = logger.WithData(lager.Data{
provisionDetailsLogKey: details,
})
provisioningResponse, asynch, err := serviceBroker.Provision(instanceID, details, acceptsIncomplete)
if err != nil {
switch err {
case ErrInstanceAlreadyExists:
logger.Error(instanceAlreadyExistsErrorKey, err)
respond(w, http.StatusConflict, EmptyResponse{})
case ErrInstanceLimitMet:
logger.Error(instanceLimitReachedErrorKey, err)
respond(w, http.StatusInternalServerError, ErrorResponse{
Description: err.Error(),
})
case ErrAsyncRequired:
logger.Error(instanceAsyncRequiredErrorKey, err)
respond(w, statusUnprocessableEntity, ErrorResponse{
Error: "AsyncRequired",
Description: err.Error(),
})
default:
logger.Error(unknownErrorKey, err)
respond(w, http.StatusInternalServerError, ErrorResponse{
Description: err.Error(),
})
}
return
}
if asynch {
respond(w, http.StatusAccepted, provisioningResponse)
return
}
respond(w, http.StatusCreated, provisioningResponse)
}
}
func lastOperation(serviceBroker ServiceBroker, router httpRouter, logger lager.Logger) http.HandlerFunc {
return func(w http.ResponseWriter, req *http.Request) {
vars := router.Vars(req)
instanceID := vars["instance_id"]
logger := logger.Session(lastOperationLogKey, lager.Data{
instanceIDLogKey: instanceID,
})
lastOperationResponse, err := serviceBroker.LastOperation(instanceID)
if err != nil {
switch err {
case ErrInstanceDoesNotExist:
logger.Error(instanceMissingErrorKey, err)
respond(w, http.StatusGone, EmptyResponse{})
default:
logger.Error(unknownErrorKey, err)
respond(w, http.StatusInternalServerError, ErrorResponse{
Description: err.Error(),
})
}
return
}
respond(w, http.StatusOK, lastOperationResponse)
}
}
func newVolume(logger lager.Logger, bcVol baggageclaim.Volume, clock clock.Clock, db VolumeFactoryDB) (Volume, bool, error) {
vol := &volume{
Volume: bcVol,
db: db,
heartbeating: new(sync.WaitGroup),
release: make(chan *time.Duration, 1),
}
ttl, found, err := vol.db.GetVolumeTTL(vol.Handle())
if err != nil {
logger.Error("failed-to-lookup-expiration-of-volume", err)
return nil, false, err
}
if !found {
return nil, false, nil
}
vol.heartbeat(logger.Session("initial-heartbeat"), ttl)
vol.heartbeating.Add(1)
go vol.heartbeatContinuously(
logger.Session("continuous-heartbeat"),
clock.NewTicker(volumeKeepalive),
ttl,
)
return vol, true, nil
}
func (b *Bulker) sync(logger lager.Logger) {
logger = logger.Session("sync")
logger.Info("starting")
defer logger.Info("finished")
startTime := b.clock.Now()
ops, batchError := b.generator.BatchOperations(logger)
endTime := b.clock.Now()
sendError := repBulkSyncDuration.Send(endTime.Sub(startTime))
if sendError != nil {
logger.Error("failed-to-send-rep-bulk-sync-duration-metric", sendError)
}
if batchError != nil {
logger.Error("failed-to-generate-operations", batchError)
return
}
for _, operation := range ops {
b.queue.Push(operation)
}
}
func NewHandler(
logger lager.Logger,
pipelineDBFactory db.PipelineDBFactory,
pipelineHandler func(db.PipelineDB) http.Handler,
template *template.Template,
) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
pipelineDB, err := pipelineDBFactory.BuildDefault()
if err != nil {
if err == db.ErrNoPipelines {
err = template.Execute(w, TemplateData{})
if err != nil {
log.Fatal("failed-to-task-template", err, lager.Data{})
}
return
}
logger.Error("failed-to-load-pipelinedb", err)
w.WriteHeader(http.StatusInternalServerError)
return
}
pipelineHandler(pipelineDB).ServeHTTP(w, r)
})
}
func (s *CgroupStarter) mountCgroup(log lager.Logger, cgroupPath, cgroupType string) error {
log = log.Session("setup-cgroup", lager.Data{
"path": cgroupPath,
"type": cgroupType,
})
log.Info("started")
defer log.Info("finished")
if !s.isMountPoint(cgroupPath) {
if err := os.MkdirAll(cgroupPath, 0755); err != nil {
log.Error("mkdir-failed", err)
return err
}
cmd := exec.Command("mount", "-n", "-t", "cgroup", "-o", cgroupType, "cgroup", cgroupPath)
cmd.Stderr = logging.Writer(log.Session("mount-cgroup-cmd"))
if err := s.CommandRunner.Run(cmd); err != nil {
log.Error("mount-cgroup-failed", err)
return err
}
}
return nil
}
func (tc *CCTaskClient) FailTask(logger lager.Logger, taskState *cc_messages.CCTaskState, httpClient *http.Client) error {
taskGuid := taskState.TaskGuid
payload, err := json.Marshal(cc_messages.TaskFailResponseForCC{
TaskGuid: taskGuid,
Failed: true,
FailureReason: "Unable to determine completion status",
})
if err != nil {
logger.Error("failed-to-marshal", err, lager.Data{"task_guid": taskGuid})
return err
}
req, err := http.NewRequest("POST", taskState.CompletionCallbackUrl, bytes.NewReader(payload))
if err != nil {
return err
}
req.Header.Set("Content-Type", "application/json")
resp, err := httpClient.Do(req)
if err != nil {
return err
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
logger.Error("bad-response-from-cc", err, lager.Data{"task_guid": taskGuid})
return errors.New("received bad response from CC ")
}
return nil
}
func (db *ETCDDB) UnclaimActualLRP(logger lager.Logger, key *models.ActualLRPKey) (*models.ActualLRPGroup, *models.ActualLRPGroup, error) {
actualLRP, modifiedIndex, err := db.rawActualLRPByProcessGuidAndIndex(logger, key.ProcessGuid, key.Index)
bbsErr := models.ConvertError(err)
if bbsErr != nil {
return nil, nil, bbsErr
}
beforeActualLRP := *actualLRP
if actualLRP.State == models.ActualLRPStateUnclaimed {
logger.Debug("already-unclaimed")
return nil, nil, models.ErrActualLRPCannotBeUnclaimed
}
actualLRP.State = models.ActualLRPStateUnclaimed
actualLRP.ActualLRPKey = *key
actualLRP.ActualLRPInstanceKey = models.ActualLRPInstanceKey{}
actualLRP.ActualLRPNetInfo = models.EmptyActualLRPNetInfo()
actualLRP.Since = db.clock.Now().UnixNano()
actualLRP.ModificationTag.Increment()
data, err := db.serializeModel(logger, actualLRP)
if err != nil {
return nil, nil, err
}
_, err = db.client.CompareAndSwap(ActualLRPSchemaPath(key.ProcessGuid, key.Index), data, 0, modifiedIndex)
if err != nil {
logger.Error("failed-compare-and-swap", err)
return nil, nil, ErrorFromEtcdError(logger, err)
}
return &models.ActualLRPGroup{Instance: &beforeActualLRP}, &models.ActualLRPGroup{Instance: actualLRP}, nil
}
func (db *ETCDDB) batchDeleteTasks(taskGuids []string, logger lager.Logger) {
if len(taskGuids) == 0 {
return
}
works := []func(){}
for _, taskGuid := range taskGuids {
taskGuid := taskGuid
works = append(works, func() {
_, err := db.client.Delete(taskGuid, true)
if err != nil {
logger.Error("failed-to-delete", err, lager.Data{
"task-guid": taskGuid,
})
}
})
}
throttler, err := workpool.NewThrottler(db.convergenceWorkersSize, works)
if err != nil {
logger.Error("failed-to-create-throttler", err)
}
throttler.Work()
return
}
func (db *ETCDDB) FailActualLRP(logger lager.Logger, key *models.ActualLRPKey, errorMessage string) (*models.ActualLRPGroup, *models.ActualLRPGroup, error) {
logger = logger.WithData(lager.Data{"actual_lrp_key": key, "error_message": errorMessage})
logger.Info("starting")
lrp, prevIndex, err := db.rawActualLRPByProcessGuidAndIndex(logger, key.ProcessGuid, key.Index)
if err != nil {
logger.Error("failed-to-get-actual-lrp", err)
return nil, nil, err
}
beforeActualLRP := *lrp
if lrp.State != models.ActualLRPStateUnclaimed {
return nil, nil, models.ErrActualLRPCannotBeFailed
}
lrp.ModificationTag.Increment()
lrp.PlacementError = errorMessage
lrp.Since = db.clock.Now().UnixNano()
lrpData, serialErr := db.serializeModel(logger, lrp)
if serialErr != nil {
return nil, nil, serialErr
}
_, err = db.client.CompareAndSwap(ActualLRPSchemaPath(key.ProcessGuid, key.Index), lrpData, 0, prevIndex)
if err != nil {
logger.Error("failed", err)
return nil, nil, models.ErrActualLRPCannotBeFailed
}
logger.Info("succeeded")
return &models.ActualLRPGroup{Instance: &beforeActualLRP}, &models.ActualLRPGroup{Instance: lrp}, nil
}
func (db *SQLDB) countTasksByState(logger lager.Logger, q Queryable) (pendingCount, runningCount, completedCount, resolvingCount int) {
var query string
switch db.flavor {
case Postgres:
query = `
SELECT
COUNT(*) FILTER (WHERE state = $1) AS pending_tasks,
COUNT(*) FILTER (WHERE state = $2) AS running_tasks,
COUNT(*) FILTER (WHERE state = $3) AS completed_tasks,
COUNT(*) FILTER (WHERE state = $4) AS resolving_tasks
FROM tasks
`
case MySQL:
query = `
SELECT
COUNT(IF(state = ?, 1, NULL)) AS pending_tasks,
COUNT(IF(state = ?, 1, NULL)) AS running_tasks,
COUNT(IF(state = ?, 1, NULL)) AS completed_tasks,
COUNT(IF(state = ?, 1, NULL)) AS resolving_tasks
FROM tasks
`
default:
// totally shouldn't happen
panic("database flavor not implemented: " + db.flavor)
}
row := db.db.QueryRow(query, models.Task_Pending, models.Task_Running, models.Task_Completed, models.Task_Resolving)
err := row.Scan(&pendingCount, &runningCount, &completedCount, &resolvingCount)
if err != nil {
logger.Error("failed-counting-tasks", err)
}
return
}
func (db *ETCDDB) rawActualLRPGroupByProcessGuidAndIndex(logger lager.Logger, processGuid string, index int32) (*models.ActualLRPGroup, error) {
node, err := db.fetchRecursiveRaw(logger, ActualLRPIndexDir(processGuid, index))
if err != nil {
return nil, err
}
group := models.ActualLRPGroup{}
for _, instanceNode := range node.Nodes {
var lrp models.ActualLRP
deserializeErr := db.deserializeModel(logger, instanceNode, &lrp)
if deserializeErr != nil {
logger.Error("failed-parsing-actual-lrp", deserializeErr, lager.Data{"key": instanceNode.Key})
return nil, deserializeErr
}
if isInstanceActualLRPNode(instanceNode) {
group.Instance = &lrp
}
if isEvacuatingActualLRPNode(instanceNode) {
group.Evacuating = &lrp
}
}
if group.Evacuating == nil && group.Instance == nil {
return nil, models.ErrResourceNotFound
}
return &group, nil
}
func (engine *execEngine) LookupBuild(logger lager.Logger, model db.Build) (Build, error) {
var metadata execMetadata
err := json.Unmarshal([]byte(model.EngineMetadata), &metadata)
if err != nil {
logger.Error("invalid-metadata", err)
return nil, err
}
err = atc.NewPlanTraversal(engine.convertPipelineNameToID).Traverse(&metadata.Plan)
if err != nil {
return nil, err
}
return &execBuild{
buildID: model.ID,
stepMetadata: buildMetadata(model, engine.externalURL),
db: engine.db,
factory: engine.factory,
delegate: engine.delegateFactory.Delegate(model.ID, model.PipelineID),
metadata: metadata,
signals: make(chan os.Signal, 1),
}, nil
}
func (db *ETCDDB) createActualLRP(logger lager.Logger, desiredLRP *models.DesiredLRP, index int32) error {
logger = logger.Session("create-actual-lrp")
var err error
if index >= desiredLRP.Instances {
err = models.NewError(models.Error_InvalidRecord, "Index too large")
logger.Error("actual-lrp-index-too-large", err, lager.Data{"actual_index": index, "desired_instances": desiredLRP.Instances})
return err
}
guid, err := uuid.NewV4()
if err != nil {
return err
}
actualLRP := &models.ActualLRP{
ActualLRPKey: models.NewActualLRPKey(
desiredLRP.ProcessGuid,
index,
desiredLRP.Domain,
),
State: models.ActualLRPStateUnclaimed,
Since: db.clock.Now().UnixNano(),
ModificationTag: models.ModificationTag{
Epoch: guid.String(),
Index: 0,
},
}
err = db.createRawActualLRP(logger, actualLRP)
if err != nil {
return err
}
return nil
}
func (s *Scheduler) TryNextPendingBuild(logger lager.Logger, versions *algorithm.VersionsDB, job atc.JobConfig, resources atc.ResourceConfigs, resourceTypes atc.ResourceTypes) Waiter {
logger = logger.Session("try-next-pending")
wg := new(sync.WaitGroup)
wg.Add(1)
go func() {
defer wg.Done()
build, found, err := s.PipelineDB.GetNextPendingBuild(job.Name)
if err != nil {
logger.Error("failed-to-get-next-pending-build", err)
return
}
if !found {
return
}
jobService, err := NewJobService(job, s.PipelineDB, s.Scanner)
if err != nil {
logger.Error("failed-to-get-job-service", err)
return
}
s.ScheduleAndResumePendingBuild(logger, versions, build, job, resources, resourceTypes, jobService)
}()
return wg
}
func (v *volume) heartbeatContinuously(logger lager.Logger, pacemaker clock.Ticker, initialTTL time.Duration) {
defer v.heartbeating.Done()
defer pacemaker.Stop()
logger.Debug("start")
defer logger.Debug("done")
ttlToSet := initialTTL
for {
select {
case <-pacemaker.C():
ttl, found, err := v.db.GetVolumeTTL(v.Handle())
if err != nil {
logger.Error("failed-to-lookup-ttl", err)
} else {
if !found {
logger.Info("volume-expired-from-database")
return
}
ttlToSet = ttl
}
v.heartbeat(logger.Session("tick"), ttlToSet)
case finalTTL := <-v.release:
if finalTTL != nil {
v.heartbeat(logger.Session("final"), *finalTTL)
}
return
}
}
}
func (tracker *tracker) Init(logger lager.Logger, metadata Metadata, session Session, typ ResourceType, tags atc.Tags) (Resource, error) {
logger = logger.Session("init")
logger.Debug("start")
defer logger.Debug("done")
container, found, err := tracker.workerClient.FindContainerForIdentifier(logger, session.ID)
if err != nil {
logger.Error("failed-to-look-for-existing-container", err)
return nil, err
}
if found {
logger.Debug("found-existing-container", lager.Data{"container": container.Handle()})
return NewResource(container), nil
}
logger.Debug("creating-container")
container, err = tracker.workerClient.CreateContainer(logger, session.ID, worker.ResourceTypeContainerSpec{
Type: string(typ),
Ephemeral: session.Ephemeral,
Tags: tags,
Env: metadata.Env(),
})
if err != nil {
return nil, err
}
logger.Info("created", lager.Data{"container": container.Handle()})
return NewResource(container), nil
}
func fetchStateAndBuildZones(logger lager.Logger, workPool *workpool.WorkPool, clients map[string]rep.Client, metricEmitter auctiontypes.AuctionMetricEmitterDelegate) map[string]Zone {
wg := &sync.WaitGroup{}
zones := map[string]Zone{}
lock := &sync.Mutex{}
wg.Add(len(clients))
for guid, client := range clients {
guid, client := guid, client
workPool.Submit(func() {
defer wg.Done()
state, err := client.State()
if err != nil {
metricEmitter.FailedCellStateRequest()
logger.Error("failed-to-get-state", err, lager.Data{"cell-guid": guid})
return
}
if state.Evacuating {
return
}
cell := NewCell(logger, guid, client, state)
lock.Lock()
zones[state.Zone] = append(zones[state.Zone], cell)
lock.Unlock()
})
}
wg.Wait()
return zones
}