credentials

package
v0.10.0 Latest Latest
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 Go to latest Published: May 17, 2024 License: Apache-2.0 Imports: 17 Imported by: 0

Documentation

Overview

Package credentials handles the access to credentials for consumers of credential sets.

A credentials set is just a set of simple key/values pair, for example username and password. Every credential consumer, for example repository implementation of other context types, (OCI repositories, OCM repositories, ...) uses the same procedure to get to its credentials:

  1. it composes a most significant typed ConsumerIdentity for every request. This is a set of name/value pairs describing the access context. For an OCI registry, this is for example: - the type (OCIRegistry) - the hostname - an optional port - the repository path
  2. it then requests credentials from its credentials Context for this consumer.
  3. the credentials context matches the requested consumer against configured consumers using a dedicated matcher. (For example: finding the consumer specification with the longest matching repository path prefix (for OCI))
  4. the credentials for the best matching entry are then returned to the requester.

The credentials context is the mediator between credential providers and credential consumers. Here

  • it is possible to explicitly configure credentials for consumer ids
  • it is possible to manage credential repositories providing named credential sets and
  • to map dedicated such sets to consumer ids.
  • specialized credential repositories, may propagate their contained credentials to auto-calculated consumer ids.

This way, there is a special credential repository type DockerConfig. It knows what its credentials are meant for (for accessing OCI registries). When instantiating such a repository, it automatically exposes its credentials under the appropriate consumer ids used by the OCI repository implementation. But docker does not allow for separate credentials for different repository prefixes in OCI registries (for example organisations in ghcr.io), only per host. Therefore, the propagated consumer ids do not provide the path property of a consumer id. Together with the path prefix matcher, those id settings therefore match all OCI credential requests for all repository paths of a dedicated host, as long as there is no more significant setting.

The credentials context also provides a configuration objeect managed by a ConfigurationContext and used to configure a credentials context. The serialization form of this object can be put into a configuration object of the configuration context. For example, the .ocmconfig file is then a serialization of such an object which is initially read by the OCM CLI to configure the used ConfigurationContext. If it describes a credentials configuration this one is applied to the credentials context. Such a credentials config object allows to

  • describe direct consumer id to credential set mappings
  • describe the instantiation of credential repositories (for example a dockerconfig repo)
  • the mapping of credential sets of any credential repository to consumer ids (for example mapping of vault entries to consumers (vault not implemented yet)

As for very context type the Context is the central element of this package. It provides access to the complete functionality by bundling all the settings required to provide credentials to its clients.

Index

Constants

View Source 
const (
	ID_TYPE = internal.ID_TYPE

	ATTR_TYPE                  = internal.ATTR_TYPE
	ATTR_USERNAME              = internal.ATTR_USERNAME
	ATTR_PASSWORD              = internal.ATTR_PASSWORD
	ATTR_CERTIFICATE_AUTHORITY = internal.ATTR_CERTIFICATE_AUTHORITY
	ATTR_CERTIFICATE           = internal.ATTR_CERTIFICATE // PEM encoded
	ATTR_PRIVATE_KEY           = internal.ATTR_PRIVATE_KEY // PEM encoded
	ATTR_SERVER_ADDRESS        = internal.ATTR_SERVER_ADDRESS
	ATTR_IDENTITY_TOKEN        = internal.ATTR_IDENTITY_TOKEN
	ATTR_REGISTRY_TOKEN        = internal.ATTR_REGISTRY_TOKEN
	ATTR_TOKEN                 = internal.ATTR_TOKEN
)
View Source 
const (
	KIND_CREDENTIALS = internal.KIND_CREDENTIALS
	KIND_CONSUMER    = internal.KIND_CONSUMER
	KIND_REPOSITORY  = internal.KIND_REPOSITORY
)
View Source 
const AliasRepositoryType = internal.AliasRepositoryType
View Source 
const CONTEXT_TYPE = internal.CONTEXT_TYPE

Variables

View Source 
var (
	CompleteMatch = internal.CompleteMatch
	NoMatch       = internal.NoMatch
	PartialMatch  = internal.PartialMatch
)

Functions

func DefaultContext 

func DefaultContext() internal.Context

func ErrUnknownCredentials 

func ErrUnknownCredentials(name string) error

func GetClientCerts added in v0.8.0 

func GetClientCerts(ctx ContextProvider, creds Credentials) ([]tls.Certificate, error)

func GetProvidedIdentityMatcher added in v0.3.0 

func GetProvidedIdentityMatcher(obj interface{}) string

func GetRootCAs added in v0.8.0 

func GetRootCAs(ctx ContextProvider, creds Credentials) (*x509.CertPool, error)

func GuessConsumerType added in v0.7.0 

func GuessConsumerType(ctxp ContextProvider, spec string) string

func RepositoryUsage added in v0.5.0 

func RepositoryUsage(scheme RepositoryTypeScheme) string

func WithConfigs 

func WithConfigs(ctx config.Context) internal.Builder

func WithContext 

func WithContext(ctx context.Context) internal.Builder

func WithRepositoyTypeScheme 

func WithRepositoyTypeScheme(scheme RepositoryTypeScheme) internal.Builder

func WithStandardConumerMatchers 

func WithStandardConumerMatchers(matchers internal.IdentityMatcherRegistry) internal.Builder

Types

type ConsumerIdentity 

type ConsumerIdentity = internal.ConsumerIdentity

func GetProvidedConsumerId added in v0.3.0 

func GetProvidedConsumerId(obj interface{}, uctx ...UsageContext) ConsumerIdentity

func NewConsumerIdentity added in v0.3.0 

func NewConsumerIdentity(typ string, attrs ...string) ConsumerIdentity

type ConsumerIdentityProvider added in v0.3.0 

type ConsumerIdentityProvider = internal.ConsumerIdentityProvider

type Context 

type Context = internal.Context

func DefinedForContext 

func DefinedForContext(ctx context.Context) (Context, bool)

func FromContext added in v0.3.0 

func FromContext(ctx context.Context) Context

func FromProvider added in v0.3.0 

func FromProvider(p ContextProvider) Context

func New 

func New(mode ...datacontext.BuilderMode) Context

type ContextProvider 

type ContextProvider = internal.ContextProvider

type Credentials 

type Credentials = internal.Credentials

func CredentialsFor added in v0.6.0 

func CredentialsFor(ctx ContextProvider, obj interface{}, uctx ...UsageContext) (Credentials, error)

func CredentialsForConsumer 

func CredentialsForConsumer(ctx ContextProvider, id ConsumerIdentity, matchers ...IdentityMatcher) (Credentials, error)

CredentialsForConsumer determine effective credentials for a consumer. If no credentials are configured no error and nil is returned. It evaluates a found credentials source for the consumer to determine the final credential properties.

func CredentialsFromList added in v0.5.0 

func CredentialsFromList(props ...string) Credentials

func NewCredentials 

func NewCredentials(props common.Properties) Credentials

func RequiredCredentialsForConsumer 

func RequiredCredentialsForConsumer(ctx ContextProvider, id ConsumerIdentity, matchers ...IdentityMatcher) (Credentials, error)

RequiredCredentialsForConsumer like CredentialsForConsumer, but an errors is returned if no credentials are found.

type CredentialsChain 

type CredentialsChain = internal.CredentialsChain

type CredentialsSource 

type CredentialsSource = internal.CredentialsSource

type CredentialsSpec 

type CredentialsSpec = internal.CredentialsSpec

func CredentialsSpecFromList added in v0.7.0 

func CredentialsSpecFromList(props ...string) CredentialsSpec

func NewCredentialsSpec 

func NewCredentialsSpec(name string, repospec RepositorySpec) CredentialsSpec

func NewGenericCredentialsSpec 

func NewGenericCredentialsSpec(name string, repospec *GenericRepositorySpec) CredentialsSpec

type DirectCredentials 

type DirectCredentials = internal.DirectCredentials

type GenericCredentialsSpec 

type GenericCredentialsSpec = internal.GenericCredentialsSpec

func ToGenericCredentialsSpec 

func ToGenericCredentialsSpec(spec CredentialsSpec) (*GenericCredentialsSpec, error)

type GenericRepositorySpec 

type GenericRepositorySpec = internal.GenericRepositorySpec

func ToGenericRepositorySpec 

func ToGenericRepositorySpec(spec RepositorySpec) (*GenericRepositorySpec, error)

type IdentityMatcher 

type IdentityMatcher = internal.IdentityMatcher

type IdentityMatcherInfo 

type IdentityMatcherInfo = internal.IdentityMatcherInfo

type IdentityMatcherInfos added in v0.3.0 

type IdentityMatcherInfos = internal.IdentityMatcherInfos

type IdentityMatcherRegistry 

type IdentityMatcherRegistry = internal.IdentityMatcherRegistry

type ProviderIdentity added in v0.3.0 

type ProviderIdentity = internal.ProviderIdentity

type Repository 

type Repository = internal.Repository

type RepositorySpec 

type RepositorySpec = internal.RepositorySpec

func NewGenericRepositorySpec 

func NewGenericRepositorySpec(data []byte, unmarshaler runtime.Unmarshaler) (RepositorySpec, error)

type RepositoryTypeScheme 

type RepositoryTypeScheme = internal.RepositoryTypeScheme

type StringUsageContext added in v0.3.0 

type StringUsageContext = internal.StringUsageContext

type UsageContext added in v0.3.0 

type UsageContext = internal.UsageContext

Source Files

View all Source files

Directories

Path Synopsis
github
github/identity
helm/identity
npm/identity
oci/identity
wget/identity
identity
hostpath
aliases
directcreds
dockerconfig
gardenerconfig
gardenerconfig/cpi
gardenerconfig/handler/container_registry
gardenerconfig/identity
memory
memory/config
npm
vault
vault/identity

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