コード例 #1
0
ファイル: environ.go プロジェクト: kakamessi99/juju
// newHostedService creates a hosted service.  It will make up a unique name,
// starting with the given prefix.
func newHostedService(azure *gwacl.ManagementAPI, prefix, affinityGroupName, label string) (*gwacl.HostedService, error) {
	var err error
	var createdService *gwacl.CreateHostedService
	for tries := 10; tries > 0 && err == nil && createdService == nil; tries-- {
		createdService, err = attemptCreateService(azure, prefix, affinityGroupName, label)
	}
	if err != nil {
		return nil, errors.Annotate(err, "could not create hosted service")
	}
	if createdService == nil {
		return nil, fmt.Errorf("could not come up with a unique hosted service name - is your randomizer initialized?")
	}
	return azure.GetHostedServiceProperties(createdService.ServiceName, true)
}
コード例 #2
0
ファイル: environ.go プロジェクト: kakamessi99/juju
// createInstance creates all of the Azure entities necessary for a
// new instance. This includes Cloud Service, Deployment and Role.
//
// If serviceName is non-empty, then createInstance will assign to
// the Cloud Service with that name. Otherwise, a new Cloud Service
// will be created.
func (env *azureEnviron) createInstance(azure *gwacl.ManagementAPI, role *gwacl.Role, serviceName string, stateServer bool) (resultInst instance.Instance, resultErr error) {
	var inst instance.Instance
	defer func() {
		if inst != nil && resultErr != nil {
			if err := env.StopInstances(inst.Id()); err != nil {
				// Failure upon failure. Log it, but return the original error.
				logger.Errorf("error releasing failed instance: %v", err)
			}
		}
	}()
	var err error
	var service *gwacl.HostedService
	if serviceName != "" {
		logger.Debugf("creating instance in existing cloud service %q", serviceName)
		service, err = azure.GetHostedServiceProperties(serviceName, true)
	} else {
		logger.Debugf("creating instance in new cloud service")
		// If we're creating a cloud service for state servers,
		// we will want to open additional ports. We need to
		// record this against the cloud service, so we use a
		// special label for the purpose.
		var label string
		if stateServer {
			label = stateServerLabel
		}
		service, err = newHostedService(azure, env.getEnvPrefix(), env.getAffinityGroupName(), label)
	}
	if err != nil {
		return nil, err
	}
	if len(service.Deployments) == 0 {
		// This is a newly created cloud service, so we
		// should destroy it if anything below fails.
		defer func() {
			if resultErr != nil {
				azure.DeleteHostedService(service.ServiceName)
				// Destroying the hosted service destroys the instance,
				// so ensure StopInstances isn't called.
				inst = nil
			}
		}()
		// Create an initial deployment.
		deployment := gwacl.NewDeploymentForCreateVMDeployment(
			deploymentNameV2(service.ServiceName),
			deploymentSlot,
			deploymentNameV2(service.ServiceName),
			[]gwacl.Role{*role},
			env.getVirtualNetworkName(),
		)
		if err := azure.AddDeployment(deployment, service.ServiceName); err != nil {
			return nil, errors.Annotate(err, "error creating VM deployment")
		}
		service.Deployments = append(service.Deployments, *deployment)
	} else {
		// Update the deployment.
		deployment := &service.Deployments[0]
		if err := azure.AddRole(&gwacl.AddRoleRequest{
			ServiceName:      service.ServiceName,
			DeploymentName:   deployment.Name,
			PersistentVMRole: (*gwacl.PersistentVMRole)(role),
		}); err != nil {
			return nil, err
		}
		deployment.RoleList = append(deployment.RoleList, *role)
	}
	return env.getInstance(service, role.RoleName)
}