server

package
v0.7.1 Latest Latest
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 Go to latest Published: Sep 9, 2017 License: Apache-2.0 Imports: 9 Imported by: 16

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Constants

View Source 
const (
	VolumeStateCreating  = "creating"
	VolumeStateAvailable = "available"
	VolumeStateInUse     = "in-use"
	VolumeStateDetaching = "detaching"
	VolumeStateAttaching = "attaching"
	VolumeStateDeleting  = "deleting"
	VolumeStateDeleted   = "deleted"
	VolumeStateError     = "error"

	VolumeTypeHDD     = "standard"
	VolumeTypeGPSSD   = "gp2"
	VolumeTypeIOPSSSD = "io1"
)

http://docs.aws.amazon.com/cli/latest/reference/ec2/describe-volumes.html EBS volume has 2 states, The status of the volume (creating | available | in-use | deleting | deleted | error). The attachment state (attaching | attached | detaching | detached). The attachment state would be returned when volume status is in-use. Q: when will the attachment state be detached? After detached, volume status should be available.

View Source 
const LoopDevPrefix = "/dev/loop"
View Source 
const LoopFileDir = "/tmp/"

Variables

View Source 
var (
	ErrVolumeIncorrectState = errors.New("IncorrectState")
	ErrVolumeInUse          = errors.New("VolumeInUse")
)

Functions

This section is empty.

Types

type Info 

type Info interface {
	GetPrivateIP() string
	GetLocalAvailabilityZone() string
	GetLocalRegion() string
	GetLocalInstanceID() string
	GetLocalVpcID() string
	GetLocalRegionAZs() []string
}

Info defines the operations for the local server related info

type LoopServer 

type LoopServer struct {
	// contains filtered or unexported fields
}

func NewLoopServer 

func NewLoopServer() *LoopServer

func (*LoopServer) AttachVolume 

func (s *LoopServer) AttachVolume(ctx context.Context, volID string, instanceID string, devName string) error

func (*LoopServer) CreateVolume 

func (s *LoopServer) CreateVolume(ctx context.Context, az string, volSizeGB int64) (volID string, err error)

func (*LoopServer) DeleteVolume 

func (s *LoopServer) DeleteVolume(ctx context.Context, volID string) error

func (*LoopServer) DetachVolume 

func (s *LoopServer) DetachVolume(ctx context.Context, volID string, instanceID string, devName string) error

func (*LoopServer) GetControlDBDeviceName 

func (s *LoopServer) GetControlDBDeviceName() string

func (*LoopServer) GetFirstDeviceName 

func (s *LoopServer) GetFirstDeviceName() string

func (*LoopServer) GetNextDeviceName 

func (s *LoopServer) GetNextDeviceName(lastDev string) (devName string, err error)

func (*LoopServer) GetVolumeInfo 

func (s *LoopServer) GetVolumeInfo(ctx context.Context, volID string) (info VolumeInfo, err error)

func (*LoopServer) GetVolumeState 

func (s *LoopServer) GetVolumeState(ctx context.Context, volID string) (state string, err error)

func (*LoopServer) WaitVolumeAttached 

func (s *LoopServer) WaitVolumeAttached(ctx context.Context, volID string) error

func (*LoopServer) WaitVolumeCreated 

func (s *LoopServer) WaitVolumeCreated(ctx context.Context, volID string) error

func (*LoopServer) WaitVolumeDetached 

func (s *LoopServer) WaitVolumeDetached(ctx context.Context, volID string) error

type MemServer 

type MemServer struct {
	// contains filtered or unexported fields
}

func NewMemServer 

func NewMemServer() *MemServer

func (*MemServer) AttachVolume 

func (s *MemServer) AttachVolume(ctx context.Context, volID string, instanceID string, devName string) error

func (*MemServer) CreateVolume 

func (s *MemServer) CreateVolume(ctx context.Context, az string, volSizeGB int64) (volID string, err error)

func (*MemServer) DeleteVolume 

func (s *MemServer) DeleteVolume(ctx context.Context, volID string) error

func (*MemServer) DetachVolume 

func (s *MemServer) DetachVolume(ctx context.Context, volID string, instanceID string, devName string) error

func (*MemServer) GetControlDBDeviceName 

func (s *MemServer) GetControlDBDeviceName() string

func (*MemServer) GetFirstDeviceName 

func (s *MemServer) GetFirstDeviceName() string

func (*MemServer) GetNextDeviceName 

func (s *MemServer) GetNextDeviceName(lastDev string) (devName string, err error)

func (*MemServer) GetVolumeInfo 

func (s *MemServer) GetVolumeInfo(ctx context.Context, volID string) (info VolumeInfo, err error)

func (*MemServer) GetVolumeState 

func (s *MemServer) GetVolumeState(ctx context.Context, volID string) (state string, err error)

func (*MemServer) WaitVolumeAttached 

func (s *MemServer) WaitVolumeAttached(ctx context.Context, volID string) error

func (*MemServer) WaitVolumeCreated 

func (s *MemServer) WaitVolumeCreated(ctx context.Context, volID string) error

func (*MemServer) WaitVolumeDetached 

func (s *MemServer) WaitVolumeDetached(ctx context.Context, volID string) error

type MockServerInfo 

type MockServerInfo struct {
}

func NewMockServerInfo 

func NewMockServerInfo() *MockServerInfo

func (*MockServerInfo) GetLocalAvailabilityZone 

func (m *MockServerInfo) GetLocalAvailabilityZone() string

func (*MockServerInfo) GetLocalInstanceID 

func (m *MockServerInfo) GetLocalInstanceID() string

func (*MockServerInfo) GetLocalRegion 

func (m *MockServerInfo) GetLocalRegion() string

func (*MockServerInfo) GetLocalRegionAZs 

func (m *MockServerInfo) GetLocalRegionAZs() []string

func (*MockServerInfo) GetLocalVpcID 

func (m *MockServerInfo) GetLocalVpcID() string

func (*MockServerInfo) GetPrivateIP 

func (m *MockServerInfo) GetPrivateIP() string

type Server 

type Server interface {
	AttachVolume(ctx context.Context, volID string, instanceID string, devName string) error
	WaitVolumeAttached(ctx context.Context, volID string) error
	GetVolumeState(ctx context.Context, volID string) (state string, err error)
	GetVolumeInfo(ctx context.Context, volID string) (info VolumeInfo, err error)
	DetachVolume(ctx context.Context, volID string, instanceID string, devName string) error
	WaitVolumeDetached(ctx context.Context, volID string) error
	CreateVolume(ctx context.Context, az string, volSizeGB int64) (volID string, err error)
	WaitVolumeCreated(ctx context.Context, volID string) error
	DeleteVolume(ctx context.Context, volID string) error

	GetControlDBDeviceName() string
	GetFirstDeviceName() string
	GetNextDeviceName(lastDev string) (devName string, err error)
}

Server defines the volume and device related operations for one host such as EC2

type VolumeInfo 

type VolumeInfo struct {
	VolID string
	State string
	// the instance that the volume is attached to.
	AttachInstanceID string
	// the device that the volume is attached to.
	Device string
	Size   int64
}

VolumeInfo records the volume's information.

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