Example #1
0
func (c *containerConfig) setTask(t *api.Task) error {
	container := t.Spec.GetContainer()
	if container == nil {
		return exec.ErrRuntimeUnsupported
	}

	if container.Image == "" {
		return ErrImageRequired
	}

	// index the networks by name
	c.networksAttachments = make(map[string]*api.NetworkAttachment, len(t.Networks))
	for _, attachment := range t.Networks {
		c.networksAttachments[attachment.Network.Spec.Annotations.Name] = attachment
	}

	c.task = t
	preparedSpec, err := template.ExpandContainerSpec(t)
	if err != nil {
		return err
	}
	c.task.Spec.Runtime = &api.TaskSpec_Container{
		Container: preparedSpec,
	}

	return nil
}
Example #2
0
func validateTask(taskSpec api.TaskSpec) error {
	if err := validateResourceRequirements(taskSpec.Resources); err != nil {
		return err
	}

	if err := validateRestartPolicy(taskSpec.Restart); err != nil {
		return err
	}

	if err := validatePlacement(taskSpec.Placement); err != nil {
		return err
	}

	if taskSpec.GetRuntime() == nil {
		return grpc.Errorf(codes.InvalidArgument, "TaskSpec: missing runtime")
	}

	_, ok := taskSpec.GetRuntime().(*api.TaskSpec_Container)
	if !ok {
		return grpc.Errorf(codes.Unimplemented, "RuntimeSpec: unimplemented runtime in service spec")
	}

	// Building a empty/dummy Task to validate the templating and
	// the resulting container spec as well. This is a *best effort*
	// validation.
	preparedSpec, err := template.ExpandContainerSpec(&api.Task{
		Spec:      taskSpec,
		ServiceID: "serviceid",
		Slot:      1,
		NodeID:    "nodeid",
		Networks:  []*api.NetworkAttachment{},
		Annotations: api.Annotations{
			Name: "taskname",
		},
		ServiceAnnotations: api.Annotations{
			Name: "servicename",
		},
		Endpoint:  &api.Endpoint{},
		LogDriver: taskSpec.LogDriver,
	})
	if err != nil {
		return grpc.Errorf(codes.InvalidArgument, err.Error())
	}
	if err := validateContainerSpec(preparedSpec); err != nil {
		return err
	}

	return nil
}