juju: github.com/juju/juju/state/imagestorage Index | Files

package imagestorage

import "github.com/juju/juju/state/imagestorage"

Index

Package Files

image.go interface.go

Constants

const (

    // ImagesDB is the database used to store image blobs.
    ImagesDB = "osimages"
)

type ImageFilter Uses

type ImageFilter struct {
    Kind   string
    Series string
    Arch   string
}

ImageFilter is used to query image metadata.

type Metadata Uses

type Metadata struct {
    ModelUUID string
    Series    string
    Arch      string
    Kind      string
    Size      int64
    SHA256    string
    Created   time.Time
    SourceURL string
}

Metadata describes an image blob.

type Storage Uses

type Storage interface {
    // AddImage adds the image blob and metadata into state,
    // replacing existing metadata if any exists with the specified version.
    AddImage(io.Reader, *Metadata) error

    // DeleteImage deletes the image blob defined by metadata from state.
    DeleteImage(*Metadata) error

    // Image returns the Metadata and image blob contents
    // for the specified kind, series, arch if it exists, else an error
    // satisfying errors.IsNotFound.
    Image(kind, series, arch string) (*Metadata, io.ReadCloser, error)

    // ListImages returns the image metadata matching the specified filter.
    ListImages(filter ImageFilter) ([]*Metadata, error)
}

Storage provides methods for storing and retrieving images by kind, series, and arch.

func NewStorage Uses

func NewStorage(
    session *mgo.Session,
    modelUUID string,
) Storage

NewStorage constructs a new Storage that stores image blobs in an "osimages" database. Image metadata is also stored in this database in the "imagemetadata" collection.

Package imagestorage imports 11 packages (graph) and is imported by 115 packages. Updated 2019-06-07. Refresh now. Tools for package owners.