types

Documentation

Index

• Constants
• Variables
• func IsContainersImageLayer(from string) bool
• func NewDockerishUrl(thing string) (dockerishUrl, error)
• type Bind
• type Binds
  • func (bs *Binds) UnmarshalYAML(unmarshal func(interface{}) error) error
• type BuildConfig
• type Command
  • func (c *Command) UnmarshalYAML(unmarshal func(interface{}) error) error
• type ImageSource
  • func NewImageSource(containersImageString string) (*ImageSource, error)
  • func (is *ImageSource) ContainersImageURL() (string, error)
  • func (is *ImageSource) ParseTag() (string, error)
• type Import
• type Imports
  • func (im *Imports) UnmarshalYAML(unmarshal func(interface{}) error) error
• type Layer
  • func (l *Layer) BuildEnvironment(name string) (map[string]string, error)
• type LayerType
  • func NewLayerType(lt string, verity squashfs.VerityMetadata) (LayerType, error)
  • func NewLayerTypeManifest(manifest ispec.Manifest) (LayerType, error)
  • func NewLayerTypes(lts []string, verity squashfs.VerityMetadata) ([]LayerType, error)
  • func (lt LayerType) LayerName(tag string) string
  • func (lt LayerType) MarshalText() ([]byte, error)
  • func (lt *LayerType) UnmarshalText(text []byte) error
• type OverlayDir
• type OverlayDirs
• type StackerConfig
  • func (sc *StackerConfig) CacheFile() string
  • func (sc *StackerConfig) Substitutions() []string
• type StackerFiles
  • func NewStackerFiles(paths []string, validateHash bool, substituteVars []string) (StackerFiles, error)
  • func (sfm StackerFiles) LookupLayerDefinition(name string) (Layer, bool)
• type Stackerfile
  • func NewStackerfile(stackerfile string, validateHash bool, substitutions []string) (*Stackerfile, error)
  • func (s *Stackerfile) DependencyOrder(sfm StackerFiles) ([]string, error)
  • func (sf *Stackerfile) Get(name string) (Layer, bool)
  • func (sf *Stackerfile) Len() int
  • func (sf *Stackerfile) Prerequisites() ([]string, error)
• type Storage
• type StringList
  • func (sol *StringList) UnmarshalYAML(unmarshal func(interface{}) error) error

Constants

const (
	DockerLayer  = "docker"
	TarLayer     = "tar"
	OCILayer     = "oci"
	BuiltLayer   = "built"
	ScratchLayer = "scratch"
)

Variables

var ErrEmptyLayers = errors.New("empty layers")

Functions

func IsContainersImageLayer

func IsContainersImageLayer(from string) bool

func NewDockerishUrl

func NewDockerishUrl(thing string) (dockerishUrl, error)

Types

type Bind

type Bind struct {
	Source string
	Dest   string
}

type Binds

type Binds []Bind

func (*Binds) UnmarshalYAML

func (bs *Binds) UnmarshalYAML(unmarshal func(interface{}) error) error

type BuildConfig

type BuildConfig struct {
	Prerequisites []string `yaml:"prerequisites"`
}

type Command

type Command []string

Command allows this type to be parsed from the yaml parser as either a list of strings or if a single string is specified, it is split with shlex.Split() into a list.

func (*Command) UnmarshalYAML

func (c *Command) UnmarshalYAML(unmarshal func(interface{}) error) error

type ImageSource

type ImageSource struct {
	Type     string `yaml:"type"`
	Url      string `yaml:"url"`
	Tag      string `yaml:"tag"`
	Insecure bool   `yaml:"insecure"`
}

func NewImageSource

func NewImageSource(containersImageString string) (*ImageSource, error)

func (*ImageSource) ContainersImageURL

func (is *ImageSource) ContainersImageURL() (string, error)

Returns a URL that can be passed to github.com/containers/image handling code.

func (*ImageSource) ParseTag

func (is *ImageSource) ParseTag() (string, error)

type Import

type Import struct {
	Path string       `yaml:"path"`
	Hash string       `yaml:"hash"`
	Dest string       `yaml:"dest"`
	Mode *fs.FileMode `yaml:"mode"`
	Uid  int          `yaml:"uid"`
	Gid  int          `yaml:"gid"`
}

type Imports

type Imports []Import

func (*Imports) UnmarshalYAML

func (im *Imports) UnmarshalYAML(unmarshal func(interface{}) error) error

Custom UnmarshalYAML from string/map/slice of strings/slice of maps into Imports

type Layer

type Layer struct {
	From           ImageSource       `yaml:"from"`
	Imports        Imports           `yaml:"import"`
	OverlayDirs    OverlayDirs       `yaml:"overlay_dirs"`
	Run            StringList        `yaml:"run"`
	Cmd            Command           `yaml:"cmd"`
	Entrypoint     Command           `yaml:"entrypoint"`
	FullCommand    Command           `yaml:"full_command"`
	BuildEnvPt     []string          `yaml:"build_env_passthrough"`
	BuildEnv       map[string]string `yaml:"build_env"`
	Environment    map[string]string `yaml:"environment"`
	Volumes        []string          `yaml:"volumes"`
	Labels         map[string]string `yaml:"labels"`
	GenerateLabels StringList        `yaml:"generate_labels"`
	WorkingDir     string            `yaml:"working_dir"`
	BuildOnly      bool              `yaml:"build_only"`
	Binds          Binds             `yaml:"binds"`
	RuntimeUser    string            `yaml:"runtime_user"`
	Annotations    map[string]string `yaml:"annotations"`
	OS             *string           `yaml:"os"`
	Arch           *string           `yaml:"arch"`
}

func (*Layer) BuildEnvironment

func (l *Layer) BuildEnvironment(name string) (map[string]string, error)

type LayerType

type LayerType struct {
	Type   string
	Verity squashfs.VerityMetadata
}

func NewLayerType

func NewLayerType(lt string, verity squashfs.VerityMetadata) (LayerType, error)

func NewLayerTypeManifest

func NewLayerTypeManifest(manifest ispec.Manifest) (LayerType, error)

func NewLayerTypes

func NewLayerTypes(lts []string, verity squashfs.VerityMetadata) ([]LayerType, error)

func (LayerType) LayerName

func (lt LayerType) LayerName(tag string) string

func (LayerType) MarshalText

func (lt LayerType) MarshalText() ([]byte, error)

func (*LayerType) UnmarshalText

func (lt *LayerType) UnmarshalText(text []byte) error

type OverlayDir

type OverlayDir struct {
	Source string `yaml:"source"`
	Dest   string `yaml:"dest"`
}

type OverlayDirs

type OverlayDirs []OverlayDir

type StackerConfig

type StackerConfig struct {
	StackerDir  string `yaml:"stacker_dir"`
	OCIDir      string `yaml:"oci_dir"`
	RootFSDir   string `yaml:"rootfs_dir"`
	Debug       bool   `yaml:"-"`
	StorageType string `yaml:"-"`

	// EmbeddedFS should contain a (statically linked) lxc-wrapper binary
	// (built from cmd/lxc-wrapper/lxc-wrapper.c) at
	// lxc-wrapper/lxc-wrapper.
	EmbeddedFS embed.FS `yaml:"-"`
}

StackerConfig is a struct that contains global (or widely used) stacker config options.

func (*StackerConfig) CacheFile

func (sc *StackerConfig) CacheFile() string

func (*StackerConfig) Substitutions

func (sc *StackerConfig) Substitutions() []string

Substitutions - return an array of substitutions for StackerFiles

type StackerFiles

type StackerFiles map[string]*Stackerfile

Logic for working with multiple StackerFiles

func NewStackerFiles

func NewStackerFiles(paths []string, validateHash bool, substituteVars []string) (StackerFiles, error)

NewStackerFiles reads multiple Stackerfiles from a list of paths and applies substitutions It adds the Stackerfiles mentioned in the prerequisite paths to the results

func (StackerFiles) LookupLayerDefinition

func (sfm StackerFiles) LookupLayerDefinition(name string) (Layer, bool)

LookupLayerDefinition searches for the Layer entry within the Stackerfiles

type Stackerfile

type Stackerfile struct {
	// AfterSubstitutions is the contents of the stacker file after
	// substitutions (i.e., the content that is actually used by stacker).
	AfterSubstitutions string

	// FileOrder is the order of elements as they appear in the stackerfile.
	FileOrder []string

	// directory relative to which the stackerfile content is referenced
	ReferenceDirectory string
	// contains filtered or unexported fields
}

func NewStackerfile

func NewStackerfile(stackerfile string, validateHash bool, substitutions []string) (*Stackerfile, error)

NewStackerfile creates a new stackerfile from the given path. substitutions is a list of KEY=VALUE pairs of things to substitute. Note that this is explicitly not a map, because the substitutions are performed one at a time in the order that they are given.

func (*Stackerfile) DependencyOrder

func (s *Stackerfile) DependencyOrder(sfm StackerFiles) ([]string, error)

DependencyOrder provides the list of layer names from a stackerfile in the order in which they should be built so all dependencies are satisfied.

func (*Stackerfile) Get

func (sf *Stackerfile) Get(name string) (Layer, bool)

func (*Stackerfile) Len

func (sf *Stackerfile) Len() int

func (*Stackerfile) Prerequisites

func (sf *Stackerfile) Prerequisites() ([]string, error)

Prerequisites provides the absolute paths to the Stackerfiles which are dependencies for building this Stackerfile

type Storage

type Storage interface {
	// Name of this storage driver (e.g. "overlay")
	Name() string

	// Create does the initial work to create a storage tag to be used
	// in later operations.
	Create(path string) error

	// SetupEmptyRootfs() sets up an empty rootfs for contents to be
	// written in (e.g. if it's a base tar file to be extracted).
	SetupEmptyRootfs(name string) error

	// Snapshot "copies" (maybe in a fs-specific fast way) one tag to
	// another; snapshots should be readonly or not generally modifiable.
	Snapshot(source string, target string) error

	// Restore is like snapshot (in fact, the implementations may be the
	// same), but marks the result as writable.
	Restore(source string, target string) error

	// Delete a storage tag.
	Delete(path string) error

	// Test if a storage tag exists.
	Exists(thing string) bool

	// Create a temporary writable snapshot of the source, returning the
	// snapshot's tag and a cleanup function.
	TemporaryWritableSnapshot(source string) (string, func(), error)

	// Clean the storage: do unmounting, delete all caches/tags, etc.
	Clean() error

	// GC any storage that's no longer relevant for the layers in the
	// layer-bases cache or output directory (note that this implies a GC
	// of those OCI dirs as well).
	GC() error

	// Unpack is the thing that unpacks the specfied tag layer-bases OCI
	// cache into the specified "name" (working dir), whatever that means
	// for this storage.
	//
	// Unpack can do fancy things like using previously cached unpacks to
	// speed things up, etc.
	Unpack(tag, name string) error

	// Repack repacks the specified working dir into the specified OCI dir.
	Repack(name string, layerTypes []LayerType, sfm StackerFiles) error

	// GetLXCRootfsConfig returns the string that should be set as
	// lxc.rootfs.path in the LXC container's config.
	GetLXCRootfsConfig(name string) (string, error)

	// TarExtractLocation returns the location that a tar-based rootfs
	// should be extracted to
	TarExtractLocation(name string) string

	// Add overlay_dirs into overlay metadata so that later we can mount them
	// in the lxc container, works only for storage-type 'overlay'
	SetOverlayDirs(name string, overlayDirs []OverlayDir, layerTypes []LayerType) error
}

type StringList

type StringList []string

StringList allows this type to be parsed from the yaml parser as either a list of strings, or if the entry was just one string, it is a list of length one containing that string.

func (*StringList) UnmarshalYAML

func (sol *StringList) UnmarshalYAML(unmarshal func(interface{}) error) error