extensions

Documentation

Overview

Package extensions provides function to manage system extensions.

Index

• type Extension
  • func List(rootPath string) ([]*Extension, error)
  • func Load(path string) (*Extension, error)
  • func (ext *Extension) Compress(squashPath, initramfsPath string) (string, error)
  • func (ext *Extension) Validate() error
• type Puller
  • func NewPuller(client *containerd.Client) (*Puller, error)
  • func (puller *Puller) Cleanup(ctx context.Context) error
  • func (puller *Puller) PullAndMount(ctx context.Context, registryConfig config.Registries, ...) error

Types

type Extension

type Extension struct {
	Manifest extensions.Manifest
	// contains filtered or unexported fields
}

Extension represents unpacked extension in the filesystem.

func List

func List(rootPath string) ([]*Extension, error)

List prepared unpacked extensions under rootPath.

func Load

func Load(path string) (*Extension, error)

Load extension from the filesystem.

This performs initial validation of the extension file structure.

func (*Extension) Compress

func (ext *Extension) Compress(squashPath, initramfsPath string) (string, error)

Compress builds the squashfs image in the specified destination folder.

Components which should be placed to the initramfs are moved to the initramfsPath.

func (*Extension) Validate

func (ext *Extension) Validate() error

Validate the extension: compatibility, contents, etc.

type Puller

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

Puller pulls, unpacks and mounts extensions images.

func NewPuller

func NewPuller(client *containerd.Client) (*Puller, error)

NewPuller creates a new instance of system extensions puller helper.

func (*Puller) Cleanup

func (puller *Puller) Cleanup(ctx context.Context) error

Cleanup the temporary stuff created by the puller process.

func (*Puller) PullAndMount

func (puller *Puller) PullAndMount(ctx context.Context, registryConfig config.Registries, extensions []config.Extension) error

PullAndMount pulls the system extension images, unpacks them and mounts under well known path (constants.SystemExtensionsPath).