utils

Documentation

Index

• Variables
• func BlockDeviceName(ctx types.Context, device string) ([]byte, error)
• func BlockDevices(ctx types.Context) ([]byte, error)
• func InstanceID(ctx types.Context) (*types.InstanceID, error)
• func IsEC2Instance(ctx types.Context) (bool, error)
• func LocalDevices(ctx types.Context, opts *types.LocalDevicesOpts) (*types.LocalDevices, error)
• func NextDevice(ctx types.Context, opts types.Store) (string, error)

Variables

var NextDeviceInfo = &types.NextDeviceInfo{
	Prefix:  "xvd",
	Pattern: "[f-p]",
	Ignore:  false,
}

NextDeviceInfo is the NextDeviceInfo object for EBS.

EBS suggests to use /dev/sd[f-p] for Linux EC2 instances. Also on Linux EC2 instances, although the device path may show up as /dev/sd* on the EC2 side, it will appear locally as /dev/xvd*

Functions

func BlockDeviceName

func BlockDeviceName(
	ctx types.Context,
	device string) ([]byte, error)

BlockDeviceName returns the name of the provided EBS device.

func BlockDevices

func BlockDevices(ctx types.Context) ([]byte, error)

BlockDevices returns the EBS devices attached to the local host.

func InstanceID

func InstanceID(ctx types.Context) (*types.InstanceID, error)

InstanceID returns the instance ID for the local host.

func IsEC2Instance

func IsEC2Instance(ctx types.Context) (bool, error)

IsEC2Instance returns a flag indicating whether the executing host is an EC2 instance based on whether or not the metadata URL can be accessed.

func LocalDevices

func LocalDevices(
	ctx types.Context,
	opts *types.LocalDevicesOpts) (*types.LocalDevices, error)

LocalDevices retrieves device paths currently attached and/or mounted

func NextDevice

func NextDevice(
	ctx types.Context,
	opts types.Store) (string, error)

NextDevice returns the next available device.