forked from coreos/fleet
/
offer.go
134 lines (103 loc) · 2.83 KB
/
offer.go
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package registry
import (
"path"
"strings"
"github.com/coreos/fleet/third_party/github.com/coreos/go-etcd/etcd"
log "github.com/coreos/fleet/third_party/github.com/golang/glog"
"github.com/coreos/fleet/event"
"github.com/coreos/fleet/job"
)
const (
offerPrefix = "offer"
)
func (r *Registry) CreateJobOffer(jo *job.JobOffer) {
key := path.Join(keyPrefix, offerPrefix, jo.Job.Name, "object")
json, err := marshal(jo)
if err != nil {
log.Errorf(err.Error())
return
}
r.etcd.Set(key, json, 0)
}
func (r *Registry) UnresolvedJobOffers() []job.JobOffer {
var offers []job.JobOffer
key := path.Join(keyPrefix, offerPrefix)
resp, err := r.etcd.Get(key, true, true)
if err != nil {
return offers
}
for _, node := range resp.Node.Nodes {
key := path.Join(node.Key, "object")
resp, err := r.etcd.Get(key, true, true)
// The object was probably handled between when we attempted to
// start resolving offers and when we actually tried to get it
if err != nil {
continue
}
var jo job.JobOffer
err = unmarshal(resp.Node.Value, &jo)
if err != nil {
log.Errorf(err.Error())
continue
}
offers = append(offers, jo)
}
return offers
}
func (r *Registry) LockJobOffer(jobName, context string) *TimedResourceMutex {
key := path.Join(keyPrefix, offerPrefix, jobName)
_, err := r.etcd.Get(key, false, true)
if err != nil {
return nil
}
return r.lockResource("offer", jobName, context)
}
func (r *Registry) ResolveJobOffer(jobName string) error {
key := path.Join(keyPrefix, offerPrefix, jobName, "object")
if _, err := r.etcd.Delete(key, false); err != nil {
return err
}
key = path.Join(keyPrefix, offerPrefix, jobName)
r.etcd.Delete(key, true)
return nil
}
func (r *Registry) SubmitJobBid(jb *job.JobBid) {
key := path.Join(keyPrefix, offerPrefix, jb.JobName, "bids", jb.MachineBootId)
//TODO: Use a TTL
r.etcd.Set(key, "", 0)
}
func (self *EventStream) filterEventJobOffered(resp *etcd.Response) *event.Event {
if resp.Action != "set" {
return nil
}
dir, base := path.Split(resp.Node.Key)
if base != "object" {
return nil
}
dir = path.Dir(strings.TrimSuffix(dir, "/"))
prefix := path.Base(strings.TrimSuffix(dir, "/"))
if prefix != offerPrefix {
return nil
}
var jo job.JobOffer
//TODO: handle error from unmarshal
unmarshal(resp.Node.Value, &jo)
return &event.Event{"EventJobOffered", jo, nil}
}
func filterEventJobBidSubmitted(resp *etcd.Response) *event.Event {
if resp.Action != "set" {
return nil
}
dir, machBootId := path.Split(resp.Node.Key)
dir, prefix := path.Split(strings.TrimSuffix(dir, "/"))
if prefix != "bids" {
return nil
}
dir, jobName := path.Split(strings.TrimSuffix(dir, "/"))
prefix = path.Base(strings.TrimSuffix(dir, "/"))
if prefix != offerPrefix {
return nil
}
jb := job.NewBid(jobName, machBootId)
return &event.Event{"EventJobBidSubmitted", *jb, nil}
}