func (l *Listener) Run(events <-chan *docker.APIEvents) {
backendCh := l.backend.Watch()
for {
select {
case event := <-events:
switch event.Status {
case "start":
container, err := l.dc.InspectContainer(event.ID)
if err != nil {
log.Println("Failed to inspect container:", event.ID, err)
continue
}
l.containers[event.ID] = container
l.Register(container)
case "die":
container, found := l.containers[event.ID]
if !found {
log.Println("Unknown container:", event.ID)
continue
}
l.Deregister(container)
}
case r := <-backendCh:
serviceName, instanceName, err := data.DecodePath(r.Node.Key)
if err != nil {
log.Println(err)
continue
}
switch {
case r.Action == "delete" && serviceName == "":
// everything deleted
l.services = make(map[string]*service)
log.Println("All services deleted")
case r.Action == "delete" && instanceName == "":
delete(l.services, serviceName)
log.Println("Service deleted:", serviceName)
case r.Action == "set" && instanceName == "details":
s := &service{name: serviceName, details: data.Service{}}
if err := json.Unmarshal([]byte(r.Node.Value), &s.details); err != nil {
log.Println("Error unmarshalling: ", err)
continue
}
l.services[serviceName] = &service{name: serviceName, details: data.Service{}}
log.Println("Service", s.name, "updated:", s.details)
// See if any containers match now.
l.Sync()
}
}
}
}
func run() {
ch := backend.Watch()
for r := range ch {
//fmt.Println(r.Action, r.Node)
serviceName, _, err := data.DecodePath(r.Node.Key)
if err != nil {
log.Println(err)
continue
}
if serviceName == "" {
// everything deleted; can't cope
continue
}
sendToAmber(serviceName)
}
}
func (l *Listener) run() {
ch := l.backend.Watch()
// Send initial state of each service
l.backend.ForeachServiceInstance(func(name string, _ data.Service) {
l.send(name)
}, nil)
for r := range ch {
// log.Println(r.Action, r.Node)
serviceName, _, err := data.DecodePath(r.Node.Key)
if err != nil {
log.Println(err)
continue
}
if serviceName == "" {
// everything deleted; can't cope
continue
}
l.send(serviceName)
}
}
func run(cmd *cobra.Command, args []string) {
initialize()
fmt.Print(len(services), " services:")
for name := range services {
fmt.Print(" ", name)
}
fmt.Println()
ch := backend.Watch()
for r := range ch {
//fmt.Println(r.Action, r.Node)
serviceName, instanceName, err := data.DecodePath(r.Node.Key)
if err != nil {
log.Println(err)
continue
}
switch r.Action {
case "create":
createService(serviceName, data.Service{})
fmt.Println("Service created:", serviceName, "; there are now", len(services), "services")
case "delete":
if serviceName == "" {
// everything deleted
services = make(map[string]*service)
fmt.Println("All services deleted")
} else if instanceName == "" {
delete(services, serviceName)
fmt.Println("Service deleted:", serviceName, "; there are now", len(services), "services")
} else {
s, ok := services[serviceName]
if !ok {
log.Println("Service not found:", serviceName)
continue
}
delete(s.instances, instanceName)
fmt.Println("Instance", instanceName, "removed from", s.name, "which now has", len(s.instances), "instances")
}
case "set":
s, ok := services[serviceName]
if !ok {
log.Println("Service not found:", serviceName)
continue
}
if instanceName == "details" {
if err := json.Unmarshal([]byte(r.Node.Value), &s.details); err != nil {
log.Println("Error unmarshalling: ", err)
continue
}
fmt.Println("Service", s.name, s.details)
} else {
var details data.Instance
if err := json.Unmarshal([]byte(r.Node.Value), &details); err != nil {
log.Fatal("Error unmarshalling: ", err)
}
i := createInstance(s, instanceName, details)
fmt.Println("Instance", i.name, "is now enrolled in", s.name, "which now has", len(s.instances), "instances")
}
default:
fmt.Println("Unhandled:", r.Action, r.Node)
}
}
}
