func doRedeployContainer(containerUri string, parentService tutum.Service, haproxyContainerUuid string) error {
container, err := tutum.GetContainer(getUuidFromUri(containerUri))
if err != nil {
return err
}
httpCheckDef, err := getEnvFromContainer("HTTP_CHECK", container)
if err != nil {
return err
}
parts := strings.Split(httpCheckDef, " ")
if len(parts) < 2 || parts[0] != "GET" {
return fmt.Errorf("container %s (%s) has bad HTTP_CHECK '%s' (not implemented)",
container.Name, containerUri, httpCheckDef)
}
httpCheckUri := parts[1]
log.Printf("redeploying container %s (%s)", container.Name, container.Uuid)
err = container.Redeploy(tutum.ReuseVolumesOption{Reuse: true})
if err != nil {
return err
}
newContainer, err := waitForContainerToTerminateAndReappear(container, parentService)
if err != nil {
return err
}
err = waitForCheckOk(httpCheckUri, newContainer, 10*60)
if err != nil {
return err
}
log.Printf("container %s (%s) checked ok", newContainer.Name, newContainer.Uuid)
return nil
}
func waitForContainerToTerminateAndReappear(container tutum.Container,
parentService tutum.Service) (tutum.Container, error) {
log.Printf("waitForContainerToTerminateAndReappear")
eventChan := make(chan tutum.Event)
errChan := make(chan error)
go tutum.TutumEvents(eventChan, errChan)
didTerminate := false
var newContainer tutum.Container
var err error
for {
select {
case event := <-eventChan:
// log.Println(event)
if event.Type == "container" &&
strings.Contains(event.Resource_uri, container.Uuid) &&
event.State == "Terminated" {
log.Printf("got container Terminated event on my container")
didTerminate = true
}
if event.Type == "container" &&
parentsContain(event.Parents, parentService.Uuid) &&
event.State == "Running" &&
didTerminate == true {
newContainer, err = tutum.GetContainer(getUuidFromUri(event.Resource_uri))
if err != nil {
return newContainer, err
}
log.Printf("got container Running event on new container (%s)", newContainer.Uuid)
return newContainer, nil
}
case err := <-errChan:
return newContainer, err
}
}
}