configuration

package
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Published: Sep 13, 2015 License: Apache-2.0, Apache-2.0 Imports: 11 Imported by: 0

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Constants

This section is empty.

Variables

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var CurrentVersion = MajorMinorVersion(0, 1)

CurrentVersion is the most recent Version that can be parsed

Functions

This section is empty.

Types

type Auth

type Auth map[string]Parameters

Auth defines the configuration for registry authorization.

func (Auth) MarshalYAML

func (auth Auth) MarshalYAML() (interface{}, error)

MarshalYAML implements the yaml.Marshaler interface

func (Auth) Parameters

func (auth Auth) Parameters() Parameters

Parameters returns the Parameters map for an Auth configuration

func (Auth) Type

func (auth Auth) Type() string

Type returns the storage driver type, such as filesystem or s3

func (*Auth) UnmarshalYAML

func (auth *Auth) UnmarshalYAML(unmarshal func(interface{}) error) error

UnmarshalYAML implements the yaml.Unmarshaler interface Unmarshals a single item map into a Storage or a string into a Storage type with no parameters

type BugsnagReporting

type BugsnagReporting struct {
	// APIKey is the Bugsnag api key.
	APIKey string `yaml:"apikey,omitempty"`
	// ReleaseStage tracks where the registry is deployed.
	// Examples: production, staging, development
	ReleaseStage string `yaml:"releasestage,omitempty"`
	// Endpoint is used for specifying an enterprise Bugsnag endpoint.
	Endpoint string `yaml:"endpoint,omitempty"`
}

BugsnagReporting configures error reporting for Bugsnag (bugsnag.com).

type Configuration

type Configuration struct {
	// Version is the version which defines the format of the rest of the configuration
	Version Version `yaml:"version"`

	// Log supports setting various parameters related to the logging
	// subsystem.
	Log struct {
		// Level is the granularity at which registry operations are logged.
		Level Loglevel `yaml:"level"`

		// Formatter overrides the default formatter with another. Options
		// include "text", "json" and "logstash".
		Formatter string `yaml:"formatter,omitempty"`

		// Fields allows users to specify static string fields to include in
		// the logger context.
		Fields map[string]interface{} `yaml:"fields,omitempty"`
	}

	// Loglevel is the level at which registry operations are logged. This is
	// deprecated. Please use Log.Level in the future.
	Loglevel Loglevel `yaml:"loglevel,omitempty"`

	// Storage is the configuration for the registry's storage driver
	Storage Storage `yaml:"storage"`

	// Auth allows configuration of various authorization methods that may be
	// used to gate requests.
	Auth Auth `yaml:"auth,omitempty"`

	// Middleware lists all middlewares to be used by the registry.
	Middleware map[string][]Middleware `yaml:"middleware,omitempty"`

	// Reporting is the configuration for error reporting
	Reporting Reporting `yaml:"reporting,omitempty"`

	// HTTP contains configuration parameters for the registry's http
	// interface.
	HTTP struct {
		// Addr specifies the bind address for the registry instance.
		Addr string `yaml:"addr,omitempty"`

		Prefix string `yaml:"prefix,omitempty"`

		// Secret specifies the secret key which HMAC tokens are created with.
		Secret string `yaml:"secret,omitempty"`

		// TLS instructs the http server to listen with a TLS configuration.
		// This only support simple tls configuration with a cert and key.
		// Mostly, this is useful for testing situations or simple deployments
		// that require tls. If more complex configurations are required, use
		// a proxy or make a proposal to add support here.
		TLS struct {
			// Certificate specifies the path to an x509 certificate file to
			// be used for TLS.
			Certificate string `yaml:"certificate,omitempty"`

			// Key specifies the path to the x509 key file, which should
			// contain the private portion for the file specified in
			// Certificate.
			Key string `yaml:"key,omitempty"`

			// Specifies the CA certs for client authentication
			// A file may contain multiple CA certificates encoded as PEM
			ClientCAs []string `yaml:"clientcas,omitempty"`
		} `yaml:"tls,omitempty"`

		// Debug configures the http debug interface, if specified. This can
		// include services such as pprof, expvar and other data that should
		// not be exposed externally. Left disabled by default.
		Debug struct {
			// Addr specifies the bind address for the debug server.
			Addr string `yaml:"addr,omitempty"`
		} `yaml:"debug,omitempty"`
	} `yaml:"http,omitempty"`

	// Notifications specifies configuration about various endpoint to which
	// registry events are dispatched.
	Notifications Notifications `yaml:"notifications,omitempty"`

	// Redis configures the redis pool available to the registry webapp.
	Redis struct {
		// Addr specifies the the redis instance available to the application.
		Addr string `yaml:"addr,omitempty"`

		// Password string to use when making a connection.
		Password string `yaml:"password,omitempty"`

		// DB specifies the database to connect to on the redis instance.
		DB int `yaml:"db,omitempty"`

		DialTimeout  time.Duration `yaml:"dialtimeout,omitempty"`  // timeout for connect
		ReadTimeout  time.Duration `yaml:"readtimeout,omitempty"`  // timeout for reads of data
		WriteTimeout time.Duration `yaml:"writetimeout,omitempty"` // timeout for writes of data

		// Pool configures the behavior of the redis connection pool.
		Pool struct {
			// MaxIdle sets the maximum number of idle connections.
			MaxIdle int `yaml:"maxidle,omitempty"`

			// MaxActive sets the maximum number of connections that should be
			// opened before blocking a connection request.
			MaxActive int `yaml:"maxactive,omitempty"`

			// IdleTimeout sets the amount time to wait before closing
			// inactive connections.
			IdleTimeout time.Duration `yaml:"idletimeout,omitempty"`
		} `yaml:"pool,omitempty"`
	} `yaml:"redis,omitempty"`
}

Configuration is a versioned registry configuration, intended to be provided by a yaml file, and optionally modified by environment variables

func Parse

func Parse(rd io.Reader) (*Configuration, error)

Parse parses an input configuration yaml document into a Configuration struct This should generally be capable of handling old configuration format versions

Environment variables may be used to override configuration parameters other than version, following the scheme below: Configuration.Abc may be replaced by the value of REGISTRY_ABC, Configuration.Abc.Xyz may be replaced by the value of REGISTRY_ABC_XYZ, and so forth

type Endpoint

type Endpoint struct {
	Name      string        `yaml:"name"`      // identifies the endpoint in the registry instance.
	Disabled  bool          `yaml:"disabled"`  // disables the endpoint
	URL       string        `yaml:"url"`       // post url for the endpoint.
	Headers   http.Header   `yaml:"headers"`   // static headers that should be added to all requests
	Timeout   time.Duration `yaml:"timeout"`   // HTTP timeout
	Threshold int           `yaml:"threshold"` // circuit breaker threshold before backing off on failure
	Backoff   time.Duration `yaml:"backoff"`   // backoff duration
}

Endpoint describes the configuration of an http webhook notification endpoint.

type Loglevel

type Loglevel string

Loglevel is the level at which operations are logged This can be error, warn, info, or debug

func (*Loglevel) UnmarshalYAML

func (loglevel *Loglevel) UnmarshalYAML(unmarshal func(interface{}) error) error

UnmarshalYAML implements the yaml.Umarshaler interface Unmarshals a string into a Loglevel, lowercasing the string and validating that it represents a valid loglevel

type Middleware

type Middleware struct {
	// Name the middleware registers itself as
	Name string `yaml:"name"`
	// Flag to disable middleware easily
	Disabled bool `yaml:"disabled,omitempty"`
	// Map of parameters that will be passed to the middleware's initialization function
	Options Parameters `yaml:"options"`
}

Middleware configures named middlewares to be applied at injection points.

type NewRelicReporting

type NewRelicReporting struct {
	// LicenseKey is the NewRelic user license key
	LicenseKey string `yaml:"licensekey,omitempty"`
	// Name is the component name of the registry in NewRelic
	Name string `yaml:"name,omitempty"`
	// Verbose configures debug output to STDOUT
	Verbose bool `yaml:"verbose,omitempty"`
}

NewRelicReporting configures error reporting for NewRelic (newrelic.com)

type Notifications

type Notifications struct {
	// Endpoints is a list of http configurations for endpoints that
	// respond to webhook notifications. In the future, we may allow other
	// kinds of endpoints, such as external queues.
	Endpoints []Endpoint `yaml:"endpoints,omitempty"`
}

Notifications configures multiple http endpoints.

type Parameters

type Parameters map[string]interface{}

Parameters defines a key-value parameters mapping

type Parser

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

Parser can be used to parse a configuration file and environment of a defined version into a unified output structure

func NewParser

func NewParser(prefix string, parseInfos []VersionedParseInfo) *Parser

NewParser returns a *Parser with the given environment prefix which handles versioned configurations which match the given parseInfos

func (*Parser) Parse

func (p *Parser) Parse(in []byte, v interface{}) error

Parse reads in the given []byte and environment and writes the resulting configuration into the input v

Environment variables may be used to override configuration parameters other than version, following the scheme below: v.Abc may be replaced by the value of PREFIX_ABC, v.Abc.Xyz may be replaced by the value of PREFIX_ABC_XYZ, and so forth

type Reporting

type Reporting struct {
	// Bugsnag configures error reporting for Bugsnag (bugsnag.com).
	Bugsnag BugsnagReporting `yaml:"bugsnag,omitempty"`
	// NewRelic configures error reporting for NewRelic (newrelic.com)
	NewRelic NewRelicReporting `yaml:"newrelic,omitempty"`
}

Reporting defines error reporting methods.

type Storage

type Storage map[string]Parameters

Storage defines the configuration for registry object storage

func (Storage) MarshalYAML

func (storage Storage) MarshalYAML() (interface{}, error)

MarshalYAML implements the yaml.Marshaler interface

func (Storage) Parameters

func (storage Storage) Parameters() Parameters

Parameters returns the Parameters map for a Storage configuration

func (Storage) Type

func (storage Storage) Type() string

Type returns the storage driver type, such as filesystem or s3

func (*Storage) UnmarshalYAML

func (storage *Storage) UnmarshalYAML(unmarshal func(interface{}) error) error

UnmarshalYAML implements the yaml.Unmarshaler interface Unmarshals a single item map into a Storage or a string into a Storage type with no parameters

type Version

type Version string

Version is a major/minor version pair of the form Major.Minor Major version upgrades indicate structure or type changes Minor version upgrades should be strictly additive

func MajorMinorVersion

func MajorMinorVersion(major, minor uint) Version

MajorMinorVersion constructs a Version from its Major and Minor components

func (Version) Major

func (version Version) Major() uint

Major returns the major version portion of a Version

func (Version) Minor

func (version Version) Minor() uint

Minor returns the minor version portion of a Version

func (*Version) UnmarshalYAML

func (version *Version) UnmarshalYAML(unmarshal func(interface{}) error) error

UnmarshalYAML implements the yaml.Unmarshaler interface Unmarshals a string of the form X.Y into a Version, validating that X and Y can represent uints

type VersionedParseInfo

type VersionedParseInfo struct {
	// Version is the version which this parsing information relates to
	Version Version
	// ParseAs defines the type which a configuration file of this version
	// should be parsed into
	ParseAs reflect.Type
	// ConversionFunc defines a method for converting the parsed configuration
	// (of type ParseAs) into the current configuration version
	// Note: this method signature is very unclear with the absence of generics
	ConversionFunc func(interface{}) (interface{}, error)
}

VersionedParseInfo defines how a specific version of a configuration should be parsed into the current version

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