llb

package
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Published: Jul 10, 2024 License: Apache-2.0 Imports: 30 Imported by: 619

Documentation ¶

Index ¶

Constants ¶

View Source
const (
	NetModeSandbox = pb.NetMode_UNSET
	NetModeHost    = pb.NetMode_HOST
	NetModeNone    = pb.NetMode_NONE
)
View Source
const (
	SecurityModeInsecure = pb.SecurityMode_INSECURE
	SecurityModeSandbox  = pb.SecurityMode_SANDBOX
)
View Source
const (
	GitAuthHeaderKey = "GIT_AUTH_HEADER"
	GitAuthTokenKey  = "GIT_AUTH_TOKEN"
)

Variables ¶

View Source
var (
	LinuxAmd64   = Platform(ocispecs.Platform{OS: "linux", Architecture: "amd64"})
	LinuxArmhf   = Platform(ocispecs.Platform{OS: "linux", Architecture: "arm", Variant: "v7"})
	LinuxArm     = LinuxArmhf
	LinuxArmel   = Platform(ocispecs.Platform{OS: "linux", Architecture: "arm", Variant: "v6"})
	LinuxArm64   = Platform(ocispecs.Platform{OS: "linux", Architecture: "arm64"})
	LinuxS390x   = Platform(ocispecs.Platform{OS: "linux", Architecture: "s390x"})
	LinuxPpc64   = Platform(ocispecs.Platform{OS: "linux", Architecture: "ppc64"})
	LinuxPpc64le = Platform(ocispecs.Platform{OS: "linux", Architecture: "ppc64le"})
	Darwin       = Platform(ocispecs.Platform{OS: "darwin", Architecture: "amd64"})
	Windows      = Platform(ocispecs.Platform{OS: "windows", Architecture: "amd64"})
)
View Source
var IgnoreCache = constraintsOptFunc(func(c *Constraints) {
	c.Metadata.IgnoreCache = true
})
View Source
var MarkImageInternal = imageOptionFunc(func(ii *ImageInfo) {
	ii.RecordType = "internal"
})
View Source
var SSHOptional = sshOptionFunc(func(si *SSHInfo) {
	si.Optional = true
})
View Source
var SecretOptional = secretOptionFunc(func(si *SecretInfo) {
	si.Optional = true
})

Functions ¶

func ForceNoOutput ¶ added in v0.5.0

func ForceNoOutput(m *mount)

func MarshalConstraints ¶

func MarshalConstraints(base, override *Constraints) (*pb.Op, *pb.OpMetadata)

func Readonly ¶

func Readonly(m *mount)

func WriteTo ¶

func WriteTo(def *Definition, w io.Writer) error

Types ¶

type CacheMountSharingMode ¶

type CacheMountSharingMode int
const (
	CacheMountShared CacheMountSharingMode = iota
	CacheMountPrivate
	CacheMountLocked
)

type ChownOpt ¶ added in v0.5.0

type ChownOpt struct {
	User  *UserOpt
	Group *UserOpt
}

func (ChownOpt) SetCopyOption ¶ added in v0.5.0

func (co ChownOpt) SetCopyOption(mi *CopyInfo)

func (ChownOpt) SetMkdirOption ¶ added in v0.5.0

func (co ChownOpt) SetMkdirOption(mi *MkdirInfo)

func (ChownOpt) SetMkfileOption ¶ added in v0.5.0

func (co ChownOpt) SetMkfileOption(mi *MkfileInfo)

type ChownOption ¶ added in v0.5.0

type ChownOption interface {
	MkdirOption
	MkfileOption
	CopyOption
}

func WithUIDGID ¶ added in v0.5.0

func WithUIDGID(uid, gid int) ChownOption

func WithUser ¶ added in v0.5.0

func WithUser(name string) ChownOption

type Constraints ¶

type Constraints struct {
	Platform          *ocispecs.Platform
	WorkerConstraints []string
	Metadata          pb.OpMetadata
	LocalUniqueID     string
	Caps              *apicaps.CapSet
	SourceLocations   []*SourceLocation
}

func NewConstraints ¶ added in v0.10.0

func NewConstraints(co ...ConstraintsOpt) *Constraints

type ConstraintsOpt ¶

type ConstraintsOpt interface {
	SetConstraintsOption(*Constraints)
	RunOption
	LocalOption
	HTTPOption
	ImageOption
	GitOption
	OCILayoutOption
}

func LocalUniqueID ¶

func LocalUniqueID(v string) ConstraintsOpt

func Platform ¶

func Platform(p ocispecs.Platform) ConstraintsOpt

func ProgressGroup ¶ added in v0.10.0

func ProgressGroup(id, name string, weak bool) ConstraintsOpt

func Require ¶

func Require(filters ...string) ConstraintsOpt

func WithCaps ¶

func WithCaps(caps apicaps.CapSet) ConstraintsOpt

WithCaps exposes supported LLB caps to the marshaler

func WithCustomName ¶

func WithCustomName(name string) ConstraintsOpt

func WithCustomNamef ¶ added in v0.4.0

func WithCustomNamef(name string, a ...interface{}) ConstraintsOpt

func WithDescription ¶

func WithDescription(m map[string]string) ConstraintsOpt

func WithExportCache ¶

func WithExportCache() ConstraintsOpt

WithExportCache forces results for this vertex to be exported with the cache

func WithoutDefaultExportCache ¶

func WithoutDefaultExportCache() ConstraintsOpt

WithoutDefaultExportCache resets the cache export for the vertex to use the default defined by the build configuration.

func WithoutExportCache ¶

func WithoutExportCache() ConstraintsOpt

WithoutExportCache sets results for this vertex to be not exported with the cache

type CopyInfo ¶ added in v0.5.0

type CopyInfo struct {
	Mode                           *os.FileMode
	FollowSymlinks                 bool
	CopyDirContentsOnly            bool
	IncludePatterns                []string
	ExcludePatterns                []string
	AttemptUnpack                  bool
	CreateDestPath                 bool
	AllowWildcard                  bool
	AllowEmptyWildcard             bool
	ChownOpt                       *ChownOpt
	CreatedTime                    *time.Time
	AlwaysReplaceExistingDestPaths bool
}

func (*CopyInfo) SetCopyOption ¶ added in v0.5.0

func (mi *CopyInfo) SetCopyOption(mi2 *CopyInfo)

type CopyInput ¶ added in v0.5.0

type CopyInput interface {
	// contains filtered or unexported methods
}

CopyInput is either llb.State or *FileActionWithState It is used by Copy to to specify the source of the copy operation.

type CopyOption ¶ added in v0.5.0

type CopyOption interface {
	SetCopyOption(*CopyInfo)
}

func WithExcludePatterns ¶ added in v0.13.0

func WithExcludePatterns(patterns []string) CopyOption

type CreatedTime ¶ added in v0.5.0

type CreatedTime time.Time

func WithCreatedTime ¶ added in v0.5.0

func WithCreatedTime(t time.Time) CreatedTime

func (CreatedTime) SetCopyOption ¶ added in v0.5.0

func (c CreatedTime) SetCopyOption(mi *CopyInfo)

func (CreatedTime) SetMkdirOption ¶ added in v0.5.0

func (c CreatedTime) SetMkdirOption(mi *MkdirInfo)

func (CreatedTime) SetMkfileOption ¶ added in v0.5.0

func (c CreatedTime) SetMkfileOption(mi *MkfileInfo)

type Definition ¶

type Definition struct {
	Def         [][]byte
	Metadata    map[digest.Digest]pb.OpMetadata
	Source      *pb.Source
	Constraints *Constraints
}

Definition is the LLB definition structure with per-vertex metadata entries Corresponds to the Definition structure defined in solver/pb.Definition.

func ReadFrom ¶

func ReadFrom(r io.Reader) (*Definition, error)

func (*Definition) FromPB ¶

func (def *Definition) FromPB(x *pb.Definition)

func (*Definition) Head ¶ added in v0.10.0

func (def *Definition) Head() (digest.Digest, error)

func (*Definition) ToPB ¶

func (def *Definition) ToPB() *pb.Definition

type DefinitionOp ¶ added in v0.7.0

type DefinitionOp struct {
	MarshalCache
	// contains filtered or unexported fields
}

DefinitionOp implements llb.Vertex using a marshalled definition.

For example, after marshalling a LLB state and sending over the wire, the LLB state can be reconstructed from the definition.

func NewDefinitionOp ¶ added in v0.7.0

func NewDefinitionOp(def *pb.Definition) (*DefinitionOp, error)

NewDefinitionOp returns a new operation from a marshalled definition.

func (*DefinitionOp) Inputs ¶ added in v0.7.0

func (d *DefinitionOp) Inputs() []Output

func (*DefinitionOp) Marshal ¶ added in v0.7.0

func (*DefinitionOp) Output ¶ added in v0.7.0

func (d *DefinitionOp) Output() Output

func (*DefinitionOp) ToInput ¶ added in v0.7.0

func (d *DefinitionOp) ToInput(ctx context.Context, c *Constraints) (*pb.Input, error)

func (*DefinitionOp) Validate ¶ added in v0.7.0

func (d *DefinitionOp) Validate(context.Context, *Constraints) error

func (*DefinitionOp) Vertex ¶ added in v0.7.0

type DiffOp ¶ added in v0.10.0

type DiffOp struct {
	MarshalCache
	// contains filtered or unexported fields
}

func NewDiff ¶ added in v0.10.0

func NewDiff(lower, upper State, c Constraints) *DiffOp

func (*DiffOp) Inputs ¶ added in v0.10.0

func (m *DiffOp) Inputs() (out []Output)

func (*DiffOp) Marshal ¶ added in v0.10.0

func (m *DiffOp) Marshal(ctx context.Context, constraints *Constraints) (digest.Digest, []byte, *pb.OpMetadata, []*SourceLocation, error)

func (*DiffOp) Output ¶ added in v0.10.0

func (m *DiffOp) Output() Output

func (*DiffOp) Validate ¶ added in v0.10.0

func (m *DiffOp) Validate(ctx context.Context, constraints *Constraints) error

type DiffType ¶ added in v0.9.0

type DiffType string
const (
	// DiffNone will do no file comparisons, all files in the Local source will
	// be retransmitted.
	DiffNone DiffType = pb.AttrLocalDifferNone
	// DiffMetadata will compare file metadata (size, modified time, mode, owner,
	// group, device and link name) to determine if the files in the Local source need
	// to be retransmitted.  This is the default behavior.
	DiffMetadata DiffType = pb.AttrLocalDifferMetadata
)

type DifferInfo ¶ added in v0.9.0

type DifferInfo struct {
	Type     DiffType
	Required bool
}

type EnvList ¶

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

func (*EnvList) AddOrReplace ¶

func (e *EnvList) AddOrReplace(k, v string) *EnvList

func (*EnvList) Delete ¶

func (e *EnvList) Delete(k string) EnvList

func (*EnvList) Get ¶

func (e *EnvList) Get(k string) (string, bool)

func (*EnvList) Keys ¶ added in v0.15.0

func (e *EnvList) Keys() []string

func (*EnvList) SetDefault ¶

func (e *EnvList) SetDefault(k, v string) *EnvList

func (*EnvList) ToArray ¶

func (e *EnvList) ToArray() []string

type ExecInfo ¶

type ExecInfo struct {
	State          State
	Mounts         []MountInfo
	ReadonlyRootFS bool
	ProxyEnv       *ProxyEnv
	Secrets        []SecretInfo
	SSH            []SSHInfo
	// contains filtered or unexported fields
}

type ExecOp ¶

type ExecOp struct {
	MarshalCache
	// contains filtered or unexported fields
}

func NewExecOp ¶

func NewExecOp(base State, proxyEnv *ProxyEnv, readOnly bool, c Constraints) *ExecOp

func (*ExecOp) AddMount ¶

func (e *ExecOp) AddMount(target string, source Output, opt ...MountOption) Output

func (*ExecOp) GetMount ¶

func (e *ExecOp) GetMount(target string) Output

func (*ExecOp) Inputs ¶

func (e *ExecOp) Inputs() (inputs []Output)

func (*ExecOp) Marshal ¶

func (*ExecOp) Output ¶

func (e *ExecOp) Output() Output

func (*ExecOp) Validate ¶

func (e *ExecOp) Validate(ctx context.Context, c *Constraints) error

type ExecState ¶

type ExecState struct {
	State
	// contains filtered or unexported fields
}

func (ExecState) AddMount ¶

func (e ExecState) AddMount(target string, source State, opt ...MountOption) State

func (ExecState) GetMount ¶

func (e ExecState) GetMount(target string) State

func (ExecState) Root ¶

func (e ExecState) Root() State

type FileAction ¶ added in v0.5.0

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

FileAction is used to specify a file operation on a State. It can be used to create a directory, create a file, or remove a file, etc. This is used by State.File Typically a FileAction is created by calling one of the helper functions such as Mkdir, Copy, Rm, Mkfile

func Copy ¶ added in v0.5.0

func Copy(input CopyInput, src, dest string, opts ...CopyOption) *FileAction

Copy produces a FileAction which copies a file or directory from the source to the destination. The "input" parameter is the contents to copy from. "src" is the path to copy from within the "input". "dest" is the path to copy to within the destination (the state being operated on). See CopyInput for the valid types of input.

Example:

st := llb.Local(".")
llb.Scratch().File(llb.Copy(st, "/foo", "/bar"))

The example copies the local (client) directory "./foo" to a new empty directory at /bar.

Note: Copying directories can have different behavior based on if the destination exists or not. When the destination already exists, the contents of the source directory is copied underneath the destination, including the directory itself. You may need to supply a copy option to copy the dir contents only. You may also need to pass in a CopyOption which creates parent directories if they do not exist.

See CopyOption for more details on what options are available.

func Mkdir ¶ added in v0.5.0

func Mkdir(p string, m os.FileMode, opt ...MkdirOption) *FileAction

Mkdir creates a FileAction which creates a directory at the given path. Example:

llb.Scratch().File(llb.Mkdir("/foo", 0755))

func Mkfile ¶ added in v0.5.0

func Mkfile(p string, m os.FileMode, dt []byte, opts ...MkfileOption) *FileAction

Mkfile creates a FileAction which creates a file at the given path with the provided contents. Example:

llb.Scratch().File(llb.Mkfile("/foo", 0644, []byte("hello world!")))

func Rm ¶ added in v0.5.0

func Rm(p string, opts ...RmOption) *FileAction

Rm creates a FileAction which removes a file or directory at the given path. Example:

llb.Scratch().File(Mkfile("/foo", 0644, []byte("not around for long..."))).File(llb.Rm("/foo"))

func (*FileAction) Copy ¶ added in v0.5.0

func (fa *FileAction) Copy(input CopyInput, src, dest string, opt ...CopyOption) *FileAction

func (*FileAction) Mkdir ¶ added in v0.5.0

func (fa *FileAction) Mkdir(p string, m os.FileMode, opt ...MkdirOption) *FileAction

func (*FileAction) Mkfile ¶ added in v0.5.0

func (fa *FileAction) Mkfile(p string, m os.FileMode, dt []byte, opt ...MkfileOption) *FileAction

func (*FileAction) Rm ¶ added in v0.5.0

func (fa *FileAction) Rm(p string, opt ...RmOption) *FileAction

func (*FileAction) WithState ¶ added in v0.5.0

func (fa *FileAction) WithState(s State) CopyInput

type FileOp ¶ added in v0.5.0

type FileOp struct {
	MarshalCache
	// contains filtered or unexported fields
}

func NewFileOp ¶ added in v0.5.0

func NewFileOp(s State, action *FileAction, c Constraints) *FileOp

func (*FileOp) Inputs ¶ added in v0.5.0

func (f *FileOp) Inputs() []Output

func (*FileOp) Marshal ¶ added in v0.5.0

func (*FileOp) Output ¶ added in v0.5.0

func (f *FileOp) Output() Output

func (*FileOp) Validate ¶ added in v0.5.0

func (f *FileOp) Validate(context.Context, *Constraints) error

type GitInfo ¶

type GitInfo struct {
	KeepGitDir       bool
	AuthTokenSecret  string
	AuthHeaderSecret string

	KnownSSHHosts string
	MountSSHSock  string
	// contains filtered or unexported fields
}

type GitOption ¶

type GitOption interface {
	SetGitOption(*GitInfo)
}

func AuthHeaderSecret ¶ added in v0.8.0

func AuthHeaderSecret(v string) GitOption

func AuthTokenSecret ¶ added in v0.8.0

func AuthTokenSecret(v string) GitOption

func KeepGitDir ¶

func KeepGitDir() GitOption

func KnownSSHHosts ¶ added in v0.8.0

func KnownSSHHosts(key string) GitOption

func MountSSHSock ¶ added in v0.8.0

func MountSSHSock(sshID string) GitOption

type HTTPInfo ¶

type HTTPInfo struct {
	Checksum digest.Digest
	Filename string
	Perm     int
	UID      int
	GID      int
	// contains filtered or unexported fields
}

type HTTPOption ¶

type HTTPOption interface {
	SetHTTPOption(*HTTPInfo)
}

func Checksum ¶

func Checksum(dgst digest.Digest) HTTPOption

func Chmod ¶

func Chmod(perm os.FileMode) HTTPOption

func Chown ¶

func Chown(uid, gid int) HTTPOption

func Filename ¶

func Filename(name string) HTTPOption

type HostIP ¶

type HostIP struct {
	Host string
	IP   net.IP
}

type ImageInfo ¶

type ImageInfo struct {
	RecordType string
	// contains filtered or unexported fields
}

type ImageMetaResolver ¶

type ImageMetaResolver = sourceresolver.ImageMetaResolver

ImageMetaResolver can resolve image config metadata from a reference

type ImageOption ¶

type ImageOption interface {
	SetImageOption(*ImageInfo)
}

func ResolveDigest ¶ added in v0.8.0

func ResolveDigest(v bool) ImageOption

ResolveDigest uses the meta resolver to update the ref of image with full digest before marshaling. This makes image ref immutable and is recommended if you want to make sure meta resolver data matches the image used during the build.

func WithLayerLimit ¶ added in v0.11.0

func WithLayerLimit(l int) ImageOption

func WithMetaResolver ¶

func WithMetaResolver(mr ImageMetaResolver) ImageOption

WithMetaResolver adds a metadata resolver to an image

type LocalInfo ¶

type LocalInfo struct {
	SessionID       string
	IncludePatterns string
	ExcludePatterns string
	FollowPaths     string
	SharedKeyHint   string
	Differ          DifferInfo
	// contains filtered or unexported fields
}

type LocalOption ¶

type LocalOption interface {
	SetLocalOption(*LocalInfo)
}

func Differ ¶ added in v0.9.0

func Differ(t DiffType, required bool) LocalOption

func ExcludePatterns ¶

func ExcludePatterns(p []string) LocalOption

func FollowPaths ¶

func FollowPaths(p []string) LocalOption

func IncludePatterns ¶

func IncludePatterns(p []string) LocalOption

func SessionID ¶

func SessionID(id string) LocalOption

func SharedKeyHint ¶

func SharedKeyHint(h string) LocalOption

type MarshalCache ¶

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

func (*MarshalCache) Cached ¶

func (mc *MarshalCache) Cached(c *Constraints) bool

func (*MarshalCache) Load ¶

func (*MarshalCache) Store ¶

func (mc *MarshalCache) Store(dt []byte, md *pb.OpMetadata, srcs []*SourceLocation, c *Constraints)

type MergeOp ¶ added in v0.10.0

type MergeOp struct {
	MarshalCache
	// contains filtered or unexported fields
}

func NewMerge ¶ added in v0.10.0

func NewMerge(inputs []State, c Constraints) *MergeOp

func (*MergeOp) Inputs ¶ added in v0.10.0

func (m *MergeOp) Inputs() []Output

func (*MergeOp) Marshal ¶ added in v0.10.0

func (m *MergeOp) Marshal(ctx context.Context, constraints *Constraints) (digest.Digest, []byte, *pb.OpMetadata, []*SourceLocation, error)

func (*MergeOp) Output ¶ added in v0.10.0

func (m *MergeOp) Output() Output

func (*MergeOp) Validate ¶ added in v0.10.0

func (m *MergeOp) Validate(ctx context.Context, constraints *Constraints) error

type MkdirInfo ¶ added in v0.5.0

type MkdirInfo struct {
	MakeParents bool
	ChownOpt    *ChownOpt
	CreatedTime *time.Time
}

func (*MkdirInfo) SetMkdirOption ¶ added in v0.5.0

func (mi *MkdirInfo) SetMkdirOption(mi2 *MkdirInfo)

type MkdirOption ¶ added in v0.5.0

type MkdirOption interface {
	SetMkdirOption(*MkdirInfo)
}

func WithParents ¶ added in v0.5.0

func WithParents(b bool) MkdirOption

WithParents is an option for Mkdir which creates parent directories if they do not exist.

type MkfileInfo ¶ added in v0.5.0

type MkfileInfo struct {
	ChownOpt    *ChownOpt
	CreatedTime *time.Time
}

func (*MkfileInfo) SetMkfileOption ¶ added in v0.5.0

func (mi *MkfileInfo) SetMkfileOption(mi2 *MkfileInfo)

type MkfileOption ¶ added in v0.5.0

type MkfileOption interface {
	SetMkfileOption(*MkfileInfo)
}

type MountContentCache ¶ added in v0.13.0

type MountContentCache int
const (
	MountContentCacheDefault MountContentCache = iota
	MountContentCacheOn
	MountContentCacheOff
)

type MountInfo ¶

type MountInfo struct {
	Target string
	Source Output
	Opts   []MountOption
}

type MountOption ¶

type MountOption func(*mount)

func AsPersistentCacheDir ¶

func AsPersistentCacheDir(id string, sharing CacheMountSharingMode) MountOption

func ContentCache ¶ added in v0.13.0

func ContentCache(cache MountContentCache) MountOption

func SourcePath ¶

func SourcePath(src string) MountOption

func Tmpfs ¶

func Tmpfs(opts ...TmpfsOption) MountOption

type OCILayoutInfo ¶ added in v0.11.0

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

type OCILayoutOption ¶ added in v0.11.0

type OCILayoutOption interface {
	SetOCILayoutOption(*OCILayoutInfo)
}

func OCILayerLimit ¶ added in v0.11.0

func OCILayerLimit(limit int) OCILayoutOption

func OCIStore ¶ added in v0.11.0

func OCIStore(sessionID string, storeID string) OCILayoutOption

type Output ¶

type Output interface {
	ToInput(context.Context, *Constraints) (*pb.Input, error)
	Vertex(context.Context, *Constraints) Vertex
}

type ProxyEnv ¶

type ProxyEnv struct {
	HTTPProxy  string
	HTTPSProxy string
	FTPProxy   string
	NoProxy    string
	AllProxy   string
}

type ResolveMode ¶

type ResolveMode int
const (
	ResolveModeDefault ResolveMode = iota
	ResolveModeForcePull
	ResolveModePreferLocal
)

func (ResolveMode) SetImageOption ¶

func (r ResolveMode) SetImageOption(ii *ImageInfo)

func (ResolveMode) String ¶

func (r ResolveMode) String() string

type RmInfo ¶ added in v0.5.0

type RmInfo struct {
	AllowNotFound bool
	AllowWildcard bool
}

func (*RmInfo) SetRmOption ¶ added in v0.5.0

func (mi *RmInfo) SetRmOption(mi2 *RmInfo)

type RmOption ¶ added in v0.5.0

type RmOption interface {
	SetRmOption(*RmInfo)
}

func WithAllowNotFound ¶ added in v0.5.0

func WithAllowNotFound(b bool) RmOption

func WithAllowWildcard ¶ added in v0.5.0

func WithAllowWildcard(b bool) RmOption

type RunOption ¶

type RunOption interface {
	SetRunOption(es *ExecInfo)
}

func AddExtraHost ¶

func AddExtraHost(host string, ip net.IP) RunOption

func AddMount ¶

func AddMount(dest string, mountState State, opts ...MountOption) RunOption

func AddSSHSocket ¶

func AddSSHSocket(opts ...SSHOption) RunOption

func AddSecret ¶

func AddSecret(dest string, opts ...SecretOption) RunOption

AddSecret is a RunOption that adds a secret to the exec.

func AddUlimit ¶ added in v0.10.0

func AddUlimit(name UlimitName, soft int64, hard int64) RunOption

func Args ¶

func Args(a []string) RunOption

func ReadonlyRootFS ¶

func ReadonlyRootFS() RunOption

ReadonlyRootFS sets the execs's root filesystem to be read-only.

func Shlex ¶

func Shlex(str string) RunOption

func Shlexf ¶

func Shlexf(str string, v ...interface{}) RunOption

func With ¶

func With(so ...StateOption) RunOption

func WithCgroupParent ¶ added in v0.10.0

func WithCgroupParent(cp string) RunOption

func WithProxy ¶

func WithProxy(ps ProxyEnv) RunOption

WithProxy is a RunOption that sets the proxy environment variables in the resulting exec. For example `HTTP_PROXY` is a standard environment variable for unix systems that programs may read.

type SSHInfo ¶

type SSHInfo struct {
	ID       string
	Target   string
	Mode     int
	UID      int
	GID      int
	Optional bool
}

type SSHOption ¶

type SSHOption interface {
	SetSSHOption(*SSHInfo)
}

func SSHID ¶

func SSHID(id string) SSHOption

func SSHSocketOpt ¶

func SSHSocketOpt(target string, uid, gid, mode int) SSHOption

func SSHSocketTarget ¶

func SSHSocketTarget(target string) SSHOption

type SecretInfo ¶

type SecretInfo struct {
	ID       string
	Target   string
	Mode     int
	UID      int
	GID      int
	Optional bool
	IsEnv    bool
}

type SecretOption ¶

type SecretOption interface {
	SetSecretOption(*SecretInfo)
}

func SecretAsEnv ¶ added in v0.10.0

func SecretAsEnv(v bool) SecretOption

SecretAsEnv defines if the secret should be added as an environment variable

func SecretFileOpt ¶

func SecretFileOpt(uid, gid, mode int) SecretOption

SecretFileOpt sets the secret's target file uid, gid and permissions.

func SecretID ¶

func SecretID(id string) SecretOption

type SourceLocation ¶ added in v0.8.0

type SourceLocation struct {
	SourceMap *SourceMap
	Ranges    []*pb.Range
}

type SourceMap ¶ added in v0.8.0

type SourceMap struct {
	State      *State
	Definition *Definition
	Filename   string
	// Language should use names defined in https://github.com/github/linguist/blob/v7.24.1/lib/linguist/languages.yml
	Language string
	Data     []byte
}

SourceMap maps a source file/location to an LLB state/definition. SourceMaps are used to provide information for debugging and helpful error messages to the user. As an example, lets say you have a Dockerfile with the following content:

FROM alpine
RUN exit 1

When the "RUN" statement exits with a non-zero exit code buildkit will treat it as an error and is able to provide the user with a helpful error message pointing to exactly the line in the Dockerfile that caused the error.

func NewSourceMap ¶ added in v0.8.0

func NewSourceMap(st *State, filename string, lang string, dt []byte) *SourceMap

func (*SourceMap) Location ¶ added in v0.8.0

func (s *SourceMap) Location(r []*pb.Range) ConstraintsOpt

type SourceOp ¶

type SourceOp struct {
	MarshalCache
	// contains filtered or unexported fields
}

func NewSource ¶

func NewSource(id string, attrs map[string]string, c Constraints) *SourceOp

func (*SourceOp) Inputs ¶

func (s *SourceOp) Inputs() []Output

func (*SourceOp) Marshal ¶

func (s *SourceOp) Marshal(ctx context.Context, constraints *Constraints) (digest.Digest, []byte, *pb.OpMetadata, []*SourceLocation, error)

func (*SourceOp) Output ¶

func (s *SourceOp) Output() Output

func (*SourceOp) Validate ¶

func (s *SourceOp) Validate(ctx context.Context, c *Constraints) error

type State ¶

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

State represents all operations that must be done to produce a given output. States are immutable, and all operations return a new state linked to the previous one. State is the core type of the LLB API and is used to build a graph of operations. The graph is then marshaled into a definition that can be executed by a backend (such as buildkitd).

Operations performed on a State are executed lazily after the entire state graph is marshalled and sent to the backend.

func Diff ¶ added in v0.10.0

func Diff(lower, upper State, opts ...ConstraintsOpt) State

Diff returns a state that represents the diff of the lower and upper states. The returned State is useful for use with Merge where you can merge the lower state with the diff.

func Git ¶

func Git(url, ref string, opts ...GitOption) State

Git returns a state that represents a git repository. Example:

st := llb.Git("https://github.com/moby/buildkit.git", "v0.11.6")

The example fetches the v0.11.6 tag of the buildkit repository. You can also use a commit hash or a branch name.

Other URL formats are supported such as "git@github.com:moby/buildkit.git", "git://...", "ssh://..." Formats that utilize SSH may need to supply credentials as a GitOption. You may need to check the source code for a full list of supported formats.

By default the git repository is cloned with `--depth=1` to reduce the amount of data downloaded. Additionally the ".git" directory is removed after the clone, you can keep ith with the KeepGitDir GitOption.

func HTTP ¶

func HTTP(url string, opts ...HTTPOption) State

func Image ¶

func Image(ref string, opts ...ImageOption) State

Image returns a state that represents a docker image in a registry. Example:

st := llb.Image("busybox:latest")

func Local ¶

func Local(name string, opts ...LocalOption) State

Local returns a state that represents a directory local to the client.

func Merge ¶ added in v0.10.0

func Merge(inputs []State, opts ...ConstraintsOpt) State

Merge merges multiple states into a single state. This is useful in conjunction with Diff to create set of patches which are independent of each other to a base state without affecting the cache of other merged states. As an example, lets say you have a rootfs with the following directories:

/ /bin /etc /opt /tmp

Now lets say you want to copy a directory /etc/foo from one state and a binary /bin/bar from another state. Copy makes a duplicate of file on top of another directory. Merge creates a directory whose contents is an overlay of 2 states on top of each other.

With "Merge" you can do this:

fooState := Diff(rootfs, fooState)
barState := Diff(rootfs, barState)

Then merge the results with:

Merge(rootfs, fooDiff, barDiff)

The resulting state will have both /etc/foo and /bin/bar, but because Merge was used, changing the contents of "fooDiff" does not require copying "barDiff" again.

func NewState ¶

func NewState(o Output) State

func OCILayout ¶ added in v0.11.0

func OCILayout(ref string, opts ...OCILayoutOption) State

func Scratch ¶

func Scratch() State

Scratch returns a state that represents an empty filesystem.

func (State) AddEnv ¶

func (s State) AddEnv(key, value string) State

AddEnv returns a new State with the provided environment variable set. See AddEnv

func (State) AddEnvf ¶

func (s State) AddEnvf(key, value string, v ...interface{}) State

AddEnvf is the same as State.AddEnv but with a format string.

func (State) AddExtraHost ¶

func (s State) AddExtraHost(host string, ip net.IP) State

AddExtraHost adds a host name to IP mapping to any containers created from this state.

func (State) AddUlimit ¶ added in v0.10.0

func (s State) AddUlimit(name UlimitName, soft int64, hard int64) State

AddUlimit sets the hard/soft for the given ulimit. The ulimit is applied to containers created from this state. Ulimits are Linux specific and only applies to containers created from this state such as via `[State.Run]` Ulimits do not apply to image configs.

func (State) Async ¶ added in v0.8.0

func (s State) Async(f func(context.Context, State, *Constraints) (State, error)) State

func (State) Dir ¶

func (s State) Dir(str string) State

Dir returns a new State with the provided working directory set. See Dir

func (State) Dirf ¶

func (s State) Dirf(str string, v ...interface{}) State

Dirf is the same as State.Dir but with a format string.

func (State) Env ¶

func (s State) Env(ctx context.Context, co ...ConstraintsOpt) (*EnvList, error)

Env returns a new State with the provided environment variable set. See [Env]

func (State) File ¶ added in v0.5.0

func (s State) File(a *FileAction, opts ...ConstraintsOpt) State

File performs a file operation on the current state. See FileAction for details on the operations that can be performed.

func (State) GetArgs ¶

func (s State) GetArgs(ctx context.Context, co ...ConstraintsOpt) ([]string, error)

func (State) GetDir ¶

func (s State) GetDir(ctx context.Context, co ...ConstraintsOpt) (string, error)

GetDir returns the current working directory for the state.

func (State) GetEnv ¶

func (s State) GetEnv(ctx context.Context, key string, co ...ConstraintsOpt) (string, bool, error)

GetEnv returns the value of the environment variable with the provided key.

func (State) GetHostname ¶ added in v0.8.0

func (s State) GetHostname(ctx context.Context, co ...ConstraintsOpt) (string, error)

GetHostname returns the hostname set on the state. See Hostname for more details.

func (State) GetNetwork ¶

func (s State) GetNetwork(ctx context.Context, co ...ConstraintsOpt) (pb.NetMode, error)

GetNetwork returns the network mode for the state.

func (State) GetPlatform ¶

func (s State) GetPlatform(ctx context.Context, co ...ConstraintsOpt) (*ocispecs.Platform, error)

GetPlatform returns the platform for the state.

func (State) GetSecurity ¶ added in v0.5.0

func (s State) GetSecurity(ctx context.Context, co ...ConstraintsOpt) (pb.SecurityMode, error)

GetSecurity returns the security mode for the state.

func (State) Hostname ¶ added in v0.8.0

func (s State) Hostname(v string) State

Hostname sets the hostname for this state. See Hostname for more details.

func (State) Marshal ¶

func (s State) Marshal(ctx context.Context, co ...ConstraintsOpt) (*Definition, error)

Marshal marshals the state and all its parents into a Definition.

func (State) Network ¶

func (s State) Network(n pb.NetMode) State

Network sets the network mode for the state. Network modes are used by State.Run to determine the network mode used when running the container. Network modes are not applied to image configs.

func (State) Output ¶

func (s State) Output() Output

Output returns the output of the state.

func (State) Platform ¶

func (s State) Platform(p ocispecs.Platform) State

Platform sets the platform for the state. Platforms are used to determine image variants to pull and run as well as the platform metadata to set on the image config.

func (State) Reset ¶

func (s State) Reset(s2 State) State

Reset is used to return a new State with all of the current state and the provided State as the parent. In effect you can think of this as creating a new state with all the output from the current state but reparented to the provided state. See Reset for more details.

func (State) Run ¶

func (s State) Run(ro ...RunOption) ExecState

Run performs the command specified by the arguments within the context of the current State. The command is executed as a container with the State's filesystem as the root filesystem. As such any command you run must be present in the State's filesystem. Constraints such as [State.Ulimit], [State.ParentCgroup], State.Network, etc. are applied to the container.

Run is useful when none of the LLB ops are sufficient for the operation that you want to perform.

func (State) Security ¶ added in v0.5.0

func (s State) Security(n pb.SecurityMode) State

Security sets the security mode for the state. Security modes are used by State.Run to the privileges that processes in the container will run with. Security modes are not applied to image configs.

func (State) SetMarshalDefaults ¶

func (s State) SetMarshalDefaults(co ...ConstraintsOpt) State

func (State) User ¶

func (s State) User(v string) State

User sets the user for this state. See User for more details.

func (State) Validate ¶

func (s State) Validate(ctx context.Context, c *Constraints) error

Validate validates the state. This validation, unlike most other operations on State, is not lazily performed.

func (State) Value ¶

func (s State) Value(ctx context.Context, k interface{}, co ...ConstraintsOpt) (interface{}, error)

func (State) With ¶

func (s State) With(so ...StateOption) State

With applies [StateOption]s to the State. Each applied StateOption creates a new State object with the previous as its parent.

func (State) WithCgroupParent ¶ added in v0.10.0

func (s State) WithCgroupParent(cp string) State

WithCgroupParent sets the parent cgroup for any containers created from this state. This is useful when you want to apply resource constraints to a group of containers. Cgroups are Linux specific and only applies to containers created from this state such as via `[State.Run]` Cgroups do not apply to image configs.

func (State) WithImageConfig ¶ added in v0.3.2

func (s State) WithImageConfig(c []byte) (State, error)

WithImageConfig adds the environment variables, working directory, and platform specified in the image config to the state.

func (State) WithOutput ¶

func (s State) WithOutput(o Output) State

WithOutput creates a new state with the output set to the given output.

func (State) WithValue ¶

func (s State) WithValue(k, v interface{}) State

type StateOption ¶

type StateOption func(State) State

func AddEnv ¶

func AddEnv(key, value string) StateOption

AddEnv returns a StateOption whichs adds an environment variable to the state. Use this with State.With to create a new state with the environment variable set. This is the equivalent of `[State.AddEnv]`

func AddEnvf ¶

func AddEnvf(key, value string, v ...interface{}) StateOption

AddEnvf is the same as AddEnv but allows for a format string. This is the equivalent of `[State.AddEnvf]`

func Dir ¶

func Dir(str string) StateOption

Dir returns a StateOption sets the working directory for the state which will be used to resolve relative paths as well as the working directory for State.Run. See State.With for where to use this.

func Dirf ¶

func Dirf(str string, v ...interface{}) StateOption

Dirf is the same as Dir but allows for a format string.

func Hostname ¶ added in v0.8.0

func Hostname(str string) StateOption

Hostname returns a StateOption which sets the hostname used for containers created by State.Run. This is the equivalent of State.Hostname See State.With for where to use this.

func Network ¶

func Network(v pb.NetMode) StateOption

Network returns a StateOption which sets the network mode used for containers created by State.Run. This is the equivalent of State.Network See State.With for where to use this.

func Reset ¶

func Reset(other State) StateOption

Reset returns a StateOption which creates a new State with just the output of the current State and the provided State is set as the parent. This is the equivalent of State.Reset

func Security ¶ added in v0.5.0

func Security(v pb.SecurityMode) StateOption

Security returns a StateOption which sets the security mode used for containers created by State.Run. This is the equivalent of State.Security See State.With for where to use this.

func User ¶

func User(str string) StateOption

User returns a StateOption which sets the user for the state which will be used by State.Run. This is the equivalent of State.User See State.With for where to use this.

func (StateOption) SetRunOption ¶ added in v0.8.0

func (fn StateOption) SetRunOption(ei *ExecInfo)

type TmpfsInfo ¶ added in v0.10.0

type TmpfsInfo struct {
	Size int64
}

type TmpfsOption ¶ added in v0.10.0

type TmpfsOption interface {
	SetTmpfsOption(*TmpfsInfo)
}

func TmpfsSize ¶ added in v0.10.0

func TmpfsSize(b int64) TmpfsOption

type UlimitName ¶ added in v0.10.0

type UlimitName string
const (
	UlimitCore       UlimitName = "core"
	UlimitCPU        UlimitName = "cpu"
	UlimitData       UlimitName = "data"
	UlimitFsize      UlimitName = "fsize"
	UlimitLocks      UlimitName = "locks"
	UlimitMemlock    UlimitName = "memlock"
	UlimitMsgqueue   UlimitName = "msgqueue"
	UlimitNice       UlimitName = "nice"
	UlimitNofile     UlimitName = "nofile"
	UlimitNproc      UlimitName = "nproc"
	UlimitRss        UlimitName = "rss"
	UlimitRtprio     UlimitName = "rtprio"
	UlimitRttime     UlimitName = "rttime"
	UlimitSigpending UlimitName = "sigpending"
	UlimitStack      UlimitName = "stack"
)

type UserOpt ¶ added in v0.5.0

type UserOpt struct {
	UID  int
	Name string
}

type Vertex ¶

type Vertex interface {
	Validate(context.Context, *Constraints) error
	Marshal(context.Context, *Constraints) (digest.Digest, []byte, *pb.OpMetadata, []*SourceLocation, error)
	Output() Output
	Inputs() []Output
}

Directories ¶

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