lifecycle

package module
v0.17.4 Latest Latest
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 Go to latest Published: Feb 12, 2024 License: Apache-2.0 Imports: 43 Imported by: 0

README

Lifecycle

Build Status GoDoc codecov CII Best Practices Gitpod ready-to-code

A reference implementation of the Cloud Native Buildpacks specification.

Supported APIs

Lifecycle Version Platform APIs Buildpack APIs
0.17.x* 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 0.10, 0.11, 0.12 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 0.10
0.16.x 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 0.10, 0.11 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9
0.15.x 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 0.10 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9
0.14.x 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8
0.13.x 0.3, 0.4, 0.5, 0.6, 0.7, 0.8 0.2, 0.3, 0.4, 0.5, 0.6, 0.7
0.12.x 0.3, 0.4, 0.5, 0.6, 0.7 0.2, 0.3, 0.4, 0.5, 0.6
0.11.x 0.3, 0.4, 0.5, 0.6 0.2, 0.3, 0.4, 0.5, 0.6
0.10.x 0.3, 0.4, 0.5 0.2, 0.3, 0.4, 0.5
0.9.x 0.3, 0.4 0.2, 0.3, 0.4
0.8.x 0.3 0.2
0.7.x 0.2 0.2
0.6.x 0.2 0.2

* denotes unreleased version

Usage

Build

Either:

  • analyzer - Reads metadata from the previous image and ensures registry access.
  • detector - Chooses buildpacks (via /bin/detect) and produces a build plan.
  • restorer - Restores layer metadata from the previous image and from the cache, and restores cached layers.
  • builder - Executes buildpacks (via /bin/build).
  • exporter - Creates an image and caches layers.

Or:

  • creator - Runs the five phases listed above in order.
Run
  • launcher - Invokes a chosen process.
Rebase
  • rebaser - Creates an image from a previous image with updated base layers.

Contributing

  • CONTRIBUTING - Information on how to contribute and grow your understanding of the lifecycle.
  • DEVELOPMENT - Further detail to help you during the development process.
  • RELEASE - Further details about our release process.

Documentation

Index

Constants

View Source 
const (
	CodeDetectPass = 0
	CodeDetectFail = 100
)
View Source 
const RebasableLabel = "io.buildpacks.rebasable"

Variables

View Source 
var (
	ErrFailedDetection = errors.New("no buildpacks participating")
	ErrBuildpack       = errors.New("buildpack(s) failed with err")
)
View Source 
var Config = &DefaultConfigHandler{}

Functions

func PrependExtensions added in v0.15.0 

func PrependExtensions(orderBp buildpack.Order, orderExt buildpack.Order) buildpack.Order

func ReadGroup 

func ReadGroup(path string) (buildpack.Group, error)

func ReadOrder 

func ReadOrder(path string) (buildpack.Order, buildpack.Order, error)

func SBOMExtensions added in v0.16.0 

func SBOMExtensions() []string

func TruncateSha 

func TruncateSha(sha string) string

Types

type Analyzer 

type Analyzer struct {
	PreviousImage imgutil.Image
	RunImage      imgutil.Image
	Logger        log.Logger
	SBOMRestorer  layer.SBOMRestorer
	PlatformAPI   *api.Version

	// Platform API < 0.7
	Buildpacks            []buildpack.GroupElement
	Cache                 Cache
	LayerMetadataRestorer layer.MetadataRestorer
	RestoresLayerMetadata bool
}

func (*Analyzer) Analyze 

func (a *Analyzer) Analyze() (files.Analyzed, error)

Analyze fetches the layers metadata from the previous image and writes analyzed.toml.

type AnalyzerFactory added in v0.14.1 

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

func NewAnalyzerFactory added in v0.14.1 

func NewAnalyzerFactory(
	platformAPI *api.Version,
	apiVerifier BuildpackAPIVerifier,
	cacheHandler CacheHandler,
	configHandler ConfigHandler,
	imageHandler image.Handler,
	registryHandler RegistryHandler,
) *AnalyzerFactory

func (*AnalyzerFactory) NewAnalyzer added in v0.14.1 

func (f *AnalyzerFactory) NewAnalyzer(
	additionalTags []string,
	cacheImageRef string,
	launchCacheDir string,
	layersDir string,
	legacyCacheDir string,
	legacyGroup buildpack.Group,
	legacyGroupPath string,
	outputImageRef string,
	previousImageRef string,
	runImageRef string,
	skipLayers bool,
	logger log.Logger,
) (*Analyzer, error)

type BuildEnv 

type BuildEnv interface {
	AddRootDir(baseDir string) error
	AddEnvDir(envDir string, defaultAction env.ActionType) error
	WithOverrides(platformDir string, baseConfigDir string) ([]string, error)
	List() []string
}

type Builder 

type Builder struct {
	AppDir         string
	BuildConfigDir string
	LayersDir      string
	PlatformDir    string
	BuildExecutor  buildpack.BuildExecutor
	DirStore       DirStore
	Group          buildpack.Group
	Logger         log.Logger
	Out, Err       io.Writer
	Plan           files.Plan
	PlatformAPI    *api.Version
	AnalyzeMD      files.Analyzed
}

func (*Builder) Build 

func (b *Builder) Build() (*files.BuildMetadata, error)

type BuildpackAPIVerifier added in v0.15.0 

type BuildpackAPIVerifier interface {
	VerifyBuildpackAPI(kind, name, requested string, logger log.Logger) error
}

type Cache 

type Cache interface {
	Exists() bool
	Name() string
	SetMetadata(metadata platform.CacheMetadata) error
	RetrieveMetadata() (platform.CacheMetadata, error)
	AddLayerFile(tarPath string, sha string) error
	ReuseLayer(sha string) error
	RetrieveLayer(sha string) (io.ReadCloser, error)
	Commit() error
}

type CacheHandler added in v0.14.1 

type CacheHandler interface {
	InitCache(imageRef, dir string) (Cache, error)
}

type ConfigHandler added in v0.14.1 

type ConfigHandler interface {
	ReadAnalyzed(path string, logger log.Logger) (files.Analyzed, error)
	ReadGroup(path string) (buildpackGroup []buildpack.GroupElement, extensionsGroup []buildpack.GroupElement, err error)
	ReadOrder(path string) (buildpack.Order, buildpack.Order, error)
	ReadRun(runPath string, logger log.Logger) (files.Run, error)
}

type DefaultConfigHandler added in v0.15.0 

type DefaultConfigHandler struct{}

func NewConfigHandler added in v0.15.0 

func NewConfigHandler() *DefaultConfigHandler

func (*DefaultConfigHandler) ReadAnalyzed added in v0.15.0 

func (h *DefaultConfigHandler) ReadAnalyzed(path string, logr log.Logger) (files.Analyzed, error)

func (*DefaultConfigHandler) ReadGroup added in v0.15.0 

func (h *DefaultConfigHandler) ReadGroup(path string) (buildpackGroup []buildpack.GroupElement, extensionsGroup []buildpack.GroupElement, err error)

func (*DefaultConfigHandler) ReadOrder added in v0.15.0 

func (h *DefaultConfigHandler) ReadOrder(path string) (buildpack.Order, buildpack.Order, error)

func (*DefaultConfigHandler) ReadRun added in v0.17.0 

func (h *DefaultConfigHandler) ReadRun(runPath string, logger log.Logger) (files.Run, error)

type DefaultDetectResolver added in v0.16.0 

type DefaultDetectResolver struct {
	Logger log.Logger
}

func NewDefaultDetectResolver added in v0.16.0 

func NewDefaultDetectResolver(logger log.Logger) *DefaultDetectResolver

func (*DefaultDetectResolver) Resolve added in v0.16.0 

func (r *DefaultDetectResolver) Resolve(done []buildpack.GroupElement, detectRuns *sync.Map) ([]buildpack.GroupElement, []files.BuildPlanEntry, error)

Resolve aggregates the detect output for a group of buildpacks and tries to resolve a build plan for the group. If any required buildpack in the group failed detection or a build plan cannot be resolved, it returns an error.

type DetectResolver added in v0.15.0 

type DetectResolver interface {
	Resolve(done []buildpack.GroupElement, detectRuns *sync.Map) ([]buildpack.GroupElement, []files.BuildPlanEntry, error)
}

type Detector added in v0.11.0 

type Detector struct {
	AppDir         string
	BuildConfigDir string
	DirStore       DirStore
	Executor       buildpack.DetectExecutor
	HasExtensions  bool
	Logger         log.LoggerHandlerWithLevel
	Order          buildpack.Order
	PlatformDir    string
	Resolver       DetectResolver
	Runs           *sync.Map
	AnalyzeMD      files.Analyzed
	PlatformAPI    *api.Version
	// contains filtered or unexported fields
}

func (*Detector) Detect added in v0.11.0 

func (d *Detector) Detect() (buildpack.Group, files.Plan, error)

func (*Detector) DetectOrder added in v0.11.0 

func (d *Detector) DetectOrder(order buildpack.Order) (buildpack.Group, files.Plan, error)

type DetectorFactory added in v0.15.0 

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

func NewDetectorFactory added in v0.15.0 

func NewDetectorFactory(
	platformAPI *api.Version,
	apiVerifier BuildpackAPIVerifier,
	configHandler ConfigHandler,
	dirStore DirStore,
) *DetectorFactory

func (*DetectorFactory) NewDetector added in v0.15.0 

func (f *DetectorFactory) NewDetector(analyzedMD files.Analyzed, appDir, buildConfigDir, orderPath, platformDir string, logger log.LoggerHandlerWithLevel) (*Detector, error)

type DirStore added in v0.15.0 

type DirStore interface {
	Lookup(kind, id, version string) (buildpack.Descriptor, error)
	LookupBp(id, version string) (*buildpack.BpDescriptor, error)
	LookupExt(id, version string) (*buildpack.ExtDescriptor, error)
}

type DockerfileApplier added in v0.15.0 

type DockerfileApplier interface {
	ImageFor(reference string) (v1.Image, error)
	Apply(dockerfile extend.Dockerfile, toBaseImage v1.Image, withBuildOptions extend.Options, logger log.Logger) (v1.Image, error)
	Cleanup() error
}

type ExportOptions added in v0.7.0 

type ExportOptions struct {
	// WorkingImage is the image to save.
	WorkingImage imgutil.Image
	// AdditionalNames are additional tags to save to, besides WorkingImage.Name().
	AdditionalNames []string
	// ExtendedDir is the location of extension-provided layers.
	ExtendedDir string
	// AppDir is the source directory.
	AppDir string
	// LayersDir is the location of buildpack-provided layers.
	LayersDir string
	// OrigMetadata was read from the previous image during the `analyze` phase, and is used to determine if a previously-uploaded layer can be re-used.
	OrigMetadata files.LayersMetadata
	// LauncherConfig is the launcher config.
	LauncherConfig LauncherConfig
	// DefaultProcessType is the user-provided default process type.
	DefaultProcessType string
	// RunImageRef is the run image reference for the layer metadata label.
	RunImageRef string
	// RunImageForExport is run image metadata for the layer metadata label for Platform API >= 0.12.
	RunImageForExport files.RunImageForExport
	// Project is project metadata for the project metadata label.
	Project files.ProjectMetadata
}

type Exporter 

type Exporter struct {
	Buildpacks   []buildpack.GroupElement
	LayerFactory LayerFactory
	Logger       log.Logger
	PlatformAPI  *api.Version
}

func (*Exporter) Cache 

func (e *Exporter) Cache(layersDir string, cacheStore Cache) error

func (*Exporter) Export 

func (e *Exporter) Export(opts ExportOptions) (files.Report, error)

type Extender added in v0.15.0 

type Extender struct {
	AppDir       string // explicitly ignored by the Dockerfile applier, also the Dockefile build context
	ExtendedDir  string // output directory for extended image layers
	GeneratedDir string // input Dockerfiles are found here
	ImageRef     string // the image to extend
	LayersDir    string // explicitly ignored by the Dockerfile applier
	PlatformDir  string // explicitly ignored by the Dockerfile applier

	CacheTTL          time.Duration            // a platform input
	DockerfileApplier DockerfileApplier        // uses kaniko, BuildKit, or other to apply the provided Dockerfile to the provided image
	Extensions        []buildpack.GroupElement // extensions are ordered from group.toml
}

func (*Extender) Extend added in v0.17.0 

func (e *Extender) Extend(kind string, logger log.Logger) error

type ExtenderFactory added in v0.15.0 

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

func NewExtenderFactory added in v0.15.0 

func NewExtenderFactory(apiVerifier BuildpackAPIVerifier, configHandler ConfigHandler) *ExtenderFactory

func (*ExtenderFactory) NewExtender added in v0.15.0 

func (f *ExtenderFactory) NewExtender(
	analyzedPath string,
	appDir string,
	extendedDir string,
	generatedDir string,
	groupPath string,
	layersDir string,
	platformDir string,
	cacheTTL time.Duration,
	dockerfileApplier DockerfileApplier,
	kind string,
	logger log.Logger,
) (*Extender, error)

type GenerateResult added in v0.15.0 

type GenerateResult struct {
	AnalyzedMD files.Analyzed
	Plan       files.Plan
	UsePlan    bool
}

type Generator added in v0.15.0 

type Generator struct {
	AppDir         string
	BuildConfigDir string
	GeneratedDir   string // e.g., <layers>/generated
	PlatformAPI    *api.Version
	PlatformDir    string
	AnalyzedMD     files.Analyzed
	DirStore       DirStore
	Executor       buildpack.GenerateExecutor
	Extensions     []buildpack.GroupElement
	Logger         log.Logger
	Out, Err       io.Writer
	Plan           files.Plan
	RunMetadata    files.Run
}

func (*Generator) Generate added in v0.15.0 

func (g *Generator) Generate() (GenerateResult, error)

type GeneratorFactory added in v0.15.0 

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

func NewGeneratorFactory added in v0.15.0 

func NewGeneratorFactory(
	apiVerifier BuildpackAPIVerifier,
	configHandler ConfigHandler,
	dirStore DirStore,
) *GeneratorFactory

func (*GeneratorFactory) NewGenerator added in v0.15.0 

func (f *GeneratorFactory) NewGenerator(
	analyzedPath string,
	appDir string,
	buildConfigDir string,
	extensions []buildpack.GroupElement,
	generatedDir string,
	plan files.Plan,
	platformAPI *api.Version,
	platformDir string,
	runPath string,
	stdout, stderr io.Writer,
	logger log.Logger,
) (*Generator, error)

type LauncherConfig 

type LauncherConfig struct {
	Path     string
	SBOMDir  string
	Metadata files.LauncherMetadata
}

type LayerDir added in v0.13.1 

type LayerDir interface {
	Identifier() string
	Path() string
}

type LayerFactory added in v0.8.1 

type LayerFactory interface {
	DirLayer(id string, dir string, createdBy string) (layers.Layer, error)
	LauncherLayer(path string) (layers.Layer, error)
	ProcessTypesLayer(metadata launch.Metadata) (layers.Layer, error)
	SliceLayers(dir string, slices []layers.Slice) ([]layers.Layer, error)
}

type MultiError 

type MultiError struct {
	Errors []error
}

func (*MultiError) Error 

func (me *MultiError) Error() string

type Platform added in v0.12.0 

type Platform interface {
	API() *api.Version
}

type RebaseReport added in v0.9.0 

type RebaseReport struct {
	Image files.ImageReport `toml:"image"`
}

type Rebaser 

type Rebaser struct {
	Logger      log.Logger
	PlatformAPI *api.Version
	Force       bool
}

func (*Rebaser) Rebase 

func (r *Rebaser) Rebase(workingImage imgutil.Image, newBaseImage imgutil.Image, outputImageRef string, additionalNames []string) (RebaseReport, error)

type RegistryHandler added in v0.14.1 

type RegistryHandler interface {
	EnsureReadAccess(imageRefs ...string) error
	EnsureWriteAccess(imageRefs ...string) error
}

type Restorer 

type Restorer struct {
	LayersDir string
	Logger    log.Logger

	Buildpacks            []buildpack.GroupElement
	LayerMetadataRestorer layer.MetadataRestorer // Platform API >= 0.7
	LayersMetadata        files.LayersMetadata   // Platform API >= 0.7
	PlatformAPI           *api.Version
	SBOMRestorer          layer.SBOMRestorer
}

func (*Restorer) Restore 

func (r *Restorer) Restore(cache Cache) error

Restore restores metadata for launch and cache layers into the layers directory and attempts to restore layer data for cache=true layers, removing the layer when unsuccessful. If a usable cache is not provided, Restore will not restore any cache=true layer metadata.

Source Files

View all Source files

Directories

Path Synopsis
testmock
Package testmock is a generated GoMock package.
 Package testmock is a generated GoMock package.
cmd
launcher
launcher/cli
lifecycle
lifecycle/cli
internal
encoding
extend
extend/kaniko
fsutil
layer
name
path
selective
str
testhelpers
testmock
Package testmock is a generated GoMock package.
 Package testmock is a generated GoMock package.
Package log has logging interfaces for convenience in lifecycle
 Package log has logging interfaces for convenience in lifecycle
files
launch
Package testmock is a generated GoMock package.
 Package testmock is a generated GoMock package.
tools
image
lister
packager
version

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