sysregistriesv2

Documentation

Index

• func ConfigPath(ctx *types.SystemContext) string
• func InvalidateCache()
• func UnqualifiedSearchRegistries(ctx *types.SystemContext) ([]string, error)
• type Endpoint
• type InvalidRegistries
  • func (e *InvalidRegistries) Error() string
• type PullSource
• type Registry
  • func FindRegistry(ctx *types.SystemContext, ref string) (*Registry, error)
  • func GetRegistries(ctx *types.SystemContext) ([]Registry, error)
  • func (r *Registry) PullSourcesFromReference(ref reference.Named) ([]PullSource, error)
• type V1RegistriesConf
  • func (config *V1RegistriesConf) ConvertToV2() (*V2RegistriesConf, error)
  • func (config *V1RegistriesConf) Nonempty() bool
• type V1TOMLConfig
• type V1TOMLregistries
• type V2RegistriesConf
  • func TryUpdatingCache(ctx *types.SystemContext) (*V2RegistriesConf, error)
  • func (config *V2RegistriesConf) Nonempty() bool

Functions

func ConfigPath

func ConfigPath(ctx *types.SystemContext) string

ConfigPath returns the path to the system-wide registry configuration file.

func InvalidateCache

func InvalidateCache()

InvalidateCache invalidates the registry cache. This function is meant to be used for long-running processes that need to reload potential changes made to the cached registry config files.

func UnqualifiedSearchRegistries

func UnqualifiedSearchRegistries(ctx *types.SystemContext) ([]string, error)

UnqualifiedSearchRegistries returns a list of host[:port] entries to try for unqualified image search, in the returned order)

Types

type Endpoint

type Endpoint struct {
	// The endpoint's remote location.
	Location string `toml:"location,omitempty"`
	// If true, certs verification will be skipped and HTTP (non-TLS)
	// connections will be allowed.
	Insecure bool `toml:"insecure,omitempty"`
}

Endpoint describes a remote location of a registry.

type InvalidRegistries

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

InvalidRegistries represents an invalid registry configurations. An example is when "registry.com" is defined multiple times in the configuration but with conflicting security settings.

func (*InvalidRegistries) Error

func (e *InvalidRegistries) Error() string

Error returns the error string.

type PullSource

type PullSource struct {
	Endpoint  Endpoint
	Reference reference.Named
}

PullSource consists of an Endpoint and a Reference. Note that the reference is rewritten according to the registries prefix and the Endpoint's location.

type Registry

type Registry struct {
	// Prefix is used for matching images, and to translate one namespace to
	// another.  If `Prefix="example.com/bar"`, `location="example.com/foo/bar"`
	// and we pull from "example.com/bar/myimage:latest", the image will
	// effectively be pulled from "example.com/foo/bar/myimage:latest".
	// If no Prefix is specified, it defaults to the specified location.
	Prefix string `toml:"prefix"`
	// A registry is an Endpoint too
	Endpoint
	// The registry's mirrors.
	Mirrors []Endpoint `toml:"mirror,omitempty"`
	// If true, pulling from the registry will be blocked.
	Blocked bool `toml:"blocked,omitempty"`
	// If true, mirrors will only be used for digest pulls. Pulling images by
	// tag can potentially yield different images, depending on which endpoint
	// we pull from.  Forcing digest-pulls for mirrors avoids that issue.
	MirrorByDigestOnly bool `toml:"mirror-by-digest-only,omitempty"`
}

Registry represents a registry.

func FindRegistry

func FindRegistry(ctx *types.SystemContext, ref string) (*Registry, error)

FindRegistry returns the Registry with the longest prefix for ref, which is a registry, repository namespace repository or image reference (as formatted by reference.Domain(), reference.Named.Name() or reference.Reference.String() — note that this requires the name to start with an explicit hostname!). If no Registry prefixes the image, nil is returned.

func GetRegistries

func GetRegistries(ctx *types.SystemContext) ([]Registry, error)

GetRegistries loads and returns the registries specified in the config. Note the parsed content of registry config files is cached. For reloading, use `InvalidateCache` and re-call `GetRegistries`.

func (*Registry) PullSourcesFromReference

func (r *Registry) PullSourcesFromReference(ref reference.Named) ([]PullSource, error)

PullSourcesFromReference returns a slice of PullSource's based on the passed reference.

type V1RegistriesConf

type V1RegistriesConf struct {
	V1TOMLConfig `toml:"registries"`
}

V1RegistriesConf is the sysregistries v1 configuration format.

func (*V1RegistriesConf) ConvertToV2

func (config *V1RegistriesConf) ConvertToV2() (*V2RegistriesConf, error)

ConvertToV2 returns a v2 config corresponding to a v1 one.

func (*V1RegistriesConf) Nonempty

func (config *V1RegistriesConf) Nonempty() bool

Nonempty returns true if config contains at least one configuration entry.

type V1TOMLConfig

type V1TOMLConfig struct {
	Search   V1TOMLregistries `toml:"search"`
	Insecure V1TOMLregistries `toml:"insecure"`
	Block    V1TOMLregistries `toml:"block"`
}

V1TOMLConfig is for backwards compatibility to sysregistries v1

type V1TOMLregistries

type V1TOMLregistries struct {
	Registries []string `toml:"registries"`
}

V1TOMLregistries is for backwards compatibility to sysregistries v1

type V2RegistriesConf

type V2RegistriesConf struct {
	Registries []Registry `toml:"registry"`
	// An array of host[:port] (not prefix!) entries to use for resolving unqualified image references
	UnqualifiedSearchRegistries []string `toml:"unqualified-search-registries"`
}

V2RegistriesConf is the sysregistries v2 configuration format.

func TryUpdatingCache

func TryUpdatingCache(ctx *types.SystemContext) (*V2RegistriesConf, error)

TryUpdatingCache loads the configuration from the provided `SystemContext` without using the internal cache. On success, the loaded configuration will be added into the internal registry cache.

func (*V2RegistriesConf) Nonempty

func (config *V2RegistriesConf) Nonempty() bool

Nonempty returns true if config contains at least one configuration entry.