func Example() {
router, err := router.Get("hipache")
if err != nil {
panic(err)
}
err = router.AddBackend("myapp")
if err != nil {
panic(err)
}
url, err := url.Parse("http://10.10.10.10:8080")
if err != nil {
panic(err)
}
err = router.AddRoute("myapp", url)
if err != nil {
panic(err)
}
addr, _ := router.Addr("myapp")
fmt.Println("Please access:", addr)
err = router.RemoveRoute("myapp", url)
if err != nil {
panic(err)
}
err = router.RemoveBackend("myapp")
if err != nil {
panic(err)
}
}
func (p *JujuProvisioner) heal(units []provision.Unit) {
var inst instance
coll := p.unitsCollection()
defer coll.Close()
for _, unit := range units {
err := coll.FindId(unit.Name).One(&inst)
if err != nil {
coll.Insert(instance{UnitName: unit.Name, InstanceID: unit.InstanceId})
} else if unit.InstanceId == inst.InstanceID {
continue
} else {
format := "[juju] instance-id of unit %q changed from %q to %q. Healing."
log.Debugf(format, unit.Name, inst.InstanceID, unit.InstanceId)
if p.elbSupport() {
router, err := Router()
if err != nil {
continue
}
router.RemoveRoute(unit.AppName, inst.InstanceID)
err = router.AddRoute(unit.AppName, unit.InstanceId)
if err != nil {
format := "[juju] Could not register instance %q in the load balancer: %s."
log.Errorf(format, unit.InstanceId, err)
continue
}
}
if inst.InstanceID != "pending" {
msg := queue.Message{
Action: app.RegenerateApprcAndStart,
Args: []string{unit.AppName, unit.Name},
}
app.Enqueue(msg)
}
inst.InstanceID = unit.InstanceId
coll.UpdateId(unit.Name, inst)
}
}
}