Golang ContainerConfig.HaveNodeConstraint方法代碼示例

func (c *Cluster) createContainer(config *cluster.ContainerConfig, name string, withImageAffinity bool, authConfig *dockerclient.AuthConfig) (*cluster.Container, error) {
	c.scheduler.Lock()

	// Ensure the name is available
	if !c.checkNameUniqueness(name) {
		c.scheduler.Unlock()
		return nil, fmt.Errorf("Conflict: The name %s is already assigned. You have to delete (or rename) that container to be able to assign %s to a container again.", name, name)
	}

	swarmID := config.SwarmID()
	if swarmID == "" {
		// Associate a Swarm ID to the container we are creating.
		swarmID = c.generateUniqueID()
		config.SetSwarmID(swarmID)
	}

	if network := c.Networks().Get(config.HostConfig.NetworkMode); network != nil && network.Scope == "local" {
		if !config.HaveNodeConstraint() {
			config.AddConstraint("node==~" + network.Engine.Name)
		}
		config.HostConfig.NetworkMode = network.Name
	}

	if withImageAffinity {
		config.AddAffinity("image==" + config.Image)
	}

	nodes, err := c.scheduler.SelectNodesForContainer(c.listNodes(), config)

	if withImageAffinity {
		config.RemoveAffinity("image==" + config.Image)
	}

	if err != nil {
		c.scheduler.Unlock()
		return nil, err
	}
	n := nodes[0]
	engine, ok := c.engines[n.ID]
	if !ok {
		c.scheduler.Unlock()
		return nil, fmt.Errorf("error creating container")
	}

	c.pendingContainers[swarmID] = &pendingContainer{
		Name:   name,
		Config: config,
		Engine: engine,
	}

	c.scheduler.Unlock()

	container, err := engine.Create(config, name, true, authConfig)

	c.scheduler.Lock()
	delete(c.pendingContainers, swarmID)
	c.scheduler.Unlock()

	return container, err
}

// CreateContainer aka schedule a brand new container into the cluster.
func (c *Cluster) CreateContainer(config *cluster.ContainerConfig, name string, authConfig *types.AuthConfig) (*cluster.Container, error) {
	poolUUID := os.Getenv("CX_POOL")
	log.Debug("CX: Adding label pool=" + poolUUID)
	config.Labels["pool"] = poolUUID

	container, err := c.createContainer(config, name, false, authConfig)

	if err != nil {
		var retries int64
		//  fails with image not found, then try to reschedule with image affinity
		// ENGINEAPIFIXME: The first error can be removed once dockerclient is removed
		bImageNotFoundError, _ := regexp.MatchString(`image \S* not found`, err.Error())
		if (bImageNotFoundError || client.IsErrImageNotFound(err)) && !config.HaveNodeConstraint() {
			// Check if the image exists in the cluster
			// If exists, retry with an image affinity
			if c.Image(config.Image) != nil {
				container, err = c.createContainer(config, name, true, authConfig)
				retries++
			}
		}

		for ; retries < c.createRetry && err != nil; retries++ {
			log.WithFields(log.Fields{"Name": "Swarm"}).Warnf("Failed to create container: %s, retrying", err)
			container, err = c.createContainer(config, name, false, authConfig)
		}
	}
	return container, err
}

// CreateContainer aka schedule a brand new container into the cluster.
func (c *Cluster) CreateContainer(config *cluster.ContainerConfig, name string) (*cluster.Container, error) {
	container, err := c.createContainer(config, name, false)

	//  fails with image not found, then try to reschedule with soft-image-affinity
	if err != nil && strings.HasSuffix(err.Error(), "not found") && !config.HaveNodeConstraint() {
		// Check if the image exists in the cluster
		// If exists, retry with a soft-image-affinity
		if image := c.Image(config.Image); image != nil {
			container, err = c.createContainer(config, name, true)
		}
	}
	return container, err
}

// CreateContainer aka schedule a brand new container into the cluster.
func (c *Cluster) CreateContainer(config *cluster.ContainerConfig, name string, authConfig *dockerclient.AuthConfig) (*cluster.Container, error) {
	container, err := c.createContainer(config, name, false, authConfig)

	//  fails with image not found, then try to reschedule with soft-image-affinity
	if err != nil {
		bImageNotFoundError, _ := regexp.MatchString(`image \S* not found`, err.Error())
		if bImageNotFoundError && !config.HaveNodeConstraint() {
			// Check if the image exists in the cluster
			// If exists, retry with a soft-image-affinity
			if image := c.Image(config.Image); image != nil {
				container, err = c.createContainer(config, name, true, authConfig)
			}
		}
	}
	return container, err
}

// CreateContainer aka schedule a brand new container into the cluster.
func (c *Cluster) CreateContainer(config *cluster.ContainerConfig, name string, authConfig *dockerclient.AuthConfig) (*cluster.Container, error) {
	container, err := c.createContainer(config, name, false, authConfig)

	if err != nil {
		var retries int64
		//  fails with image not found, then try to reschedule with image affinity
		bImageNotFoundError, _ := regexp.MatchString(`image \S* not found`, err.Error())
		if bImageNotFoundError && !config.HaveNodeConstraint() {
			// Check if the image exists in the cluster
			// If exists, retry with a image affinity
			if c.Image(config.Image) != nil {
				container, err = c.createContainer(config, name, true, authConfig)
				retries++
			}
		}

		for ; retries < c.createRetry && err != nil; retries++ {
			log.WithFields(log.Fields{"Name": "Swarm"}).Warnf("Failed to create container: %s, retrying", err)
			container, err = c.createContainer(config, name, false, authConfig)
		}
	}
	return container, err
}