// Get latest convergence state and send notifications
func monitorConverged(lastConverged bool, lastEventAt time.Time) (bool, ecs.ServiceEvent) {
log := logger.New("ns=services_monitor")
services, err := models.ClusterServices()
if err != nil {
log.Log("fn=monitorConverged err=%q", err)
return lastConverged, ecs.ServiceEvent{
CreatedAt: aws.Time(lastEventAt),
}
}
converged := services.IsConverged()
events := services.EventsSince(lastEventAt)
log.Log("fn=monitorConverged converged=%t events=%d lastEventAt=%q", converged, len(events), lastEventAt)
if events.HasCapacityWarning() {
models.NotifyError("rack:capacity", fmt.Errorf(events.CapacityWarning()), map[string]string{
"rack": os.Getenv("RACK"),
})
}
if converged != lastConverged {
models.NotifySuccess("rack:converge", map[string]string{
"rack": os.Getenv("RACK"),
"converged": fmt.Sprintf("%t", converged),
})
}
return converged, services.LastEvent()
}
func SystemUpdate(rw http.ResponseWriter, r *http.Request) *httperr.Error {
rack, err := models.GetSystem()
if err != nil {
return httperr.Server(err)
}
notifyData := map[string]string{}
if count := GetForm(r, "count"); count != "" {
count, err := strconv.Atoi(count)
if err != nil {
return httperr.Server(err)
}
rack.Count = count
notifyData["count"] = strconv.Itoa(count)
}
if t := GetForm(r, "type"); t != "" {
rack.Type = t
notifyData["type"] = t
}
if version := GetForm(r, "version"); version != "" {
rack.Version = version
notifyData["version"] = version
}
err = rack.Save()
if awsError(err) == "ValidationError" {
switch {
case strings.Index(err.Error(), "No updates are to be performed") > -1:
return httperr.Errorf(403, "no system updates are to be performed")
case strings.Index(err.Error(), "can not be updated") > -1:
return httperr.Errorf(403, "system is already updating")
}
}
if err != nil {
return httperr.Server(err)
}
rack, err = models.GetSystem()
if err != nil {
return httperr.Server(err)
}
models.NotifySuccess("system:update", notifyData)
return RenderJson(rw, rack)
}
func SystemUpdate(rw http.ResponseWriter, r *http.Request) *httperr.Error {
rack, err := provider.SystemGet()
if err != nil {
return httperr.Server(err)
}
notifyData := map[string]string{}
if count := GetForm(r, "count"); count != "" {
count, err := strconv.Atoi(count)
if err != nil {
return httperr.Server(err)
}
rack.Count = count
notifyData["count"] = strconv.Itoa(count)
}
if t := GetForm(r, "type"); t != "" {
rack.Type = t
notifyData["type"] = t
}
if version := GetForm(r, "version"); version != "" {
rack.Version = version
notifyData["version"] = version
}
err = provider.SystemSave(*rack)
if err != nil {
return httperr.Server(err)
}
rack, err = provider.SystemGet()
if err != nil {
return httperr.Server(err)
}
models.NotifySuccess("rack:update", notifyData)
return RenderJson(rw, rack)
}