func verifyEndpoint(e endpoint.Endpoint) error {
version, err := e.Version()
if err != nil {
return err
}
log.Infof("%s reported version %s", e.Name(), version)
isSwarm := false
if strings.HasPrefix(version, "swarm/") {
isSwarm = true
parts := strings.Split(version, "/")
version = parts[1]
}
semver, err := semver.Make(version)
if err != nil {
return fmt.Errorf("can't understand version '%s'", version)
}
if isSwarm && semver.LT(RequiredSwarmAPIVersion) {
return fmt.Errorf("Swarm API must be %s or above, but it is %s", RequiredSwarmAPIVersion, semver)
}
if !isSwarm && semver.LT(RequiredDockerAPIVersion) {
return fmt.Errorf("Docker API must be %s or above, but it is %s", RequiredDockerAPIVersion, semver)
}
return nil
}
func startServices(services []Service, manifests DeploymentManifests, endpoint endpoint.Endpoint) error {
manifestsBlob, err := json.Marshal(manifests)
if err != nil {
return err
}
for _, svc := range services {
if svc.ContainerConfig.Labels == nil {
svc.ContainerConfig.Labels = make(map[string]string)
}
svc.ContainerConfig.Labels["zodiacManifest"] = string(manifestsBlob)
svc.ContainerConfig.Labels["com.centurylinklabs.zodiac.original-image"] = svc.OriginalImage
fmt.Printf("Creating %s\n", svc.Name)
if err := endpoint.StartContainer(svc.Name, svc.ContainerConfig); err != nil {
return err
}
}
return nil
}
func getDeploymentManifests(reqs []proxy.ContainerRequest, endpoint endpoint.Endpoint) (DeploymentManifests, error) {
var manifests DeploymentManifests
var inspectError error
for _, req := range reqs {
ci, err := endpoint.InspectContainer(req.Name)
inspectError = err
if err != nil {
continue
}
if err := json.Unmarshal([]byte(ci.Config.Labels["zodiacManifest"]), &manifests); err != nil {
return nil, err
}
break
}
if inspectError != nil {
return nil, inspectError
}
return manifests, nil
}