bootstrap

package
v1.11.7-beta.0 Latest Latest
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Published: Dec 16, 2018 License: Apache-2.0 Imports: 13 Imported by: 0

Documentation

Overview

Package bootstrap provides a token authenticator for TLS bootstrap secrets.

Index

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Functions

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Types

type TokenAuthenticator

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

TokenAuthenticator authenticates bootstrap tokens from secrets in the API server.

func NewTokenAuthenticator

func NewTokenAuthenticator(lister internalversion.SecretNamespaceLister) *TokenAuthenticator

NewTokenAuthenticator initializes a bootstrap token authenticator.

Lister is expected to be for the "kube-system" namespace.

func (*TokenAuthenticator) AuthenticateToken

func (t *TokenAuthenticator) AuthenticateToken(token string) (user.Info, bool, error)

AuthenticateToken tries to match the provided token to a bootstrap token secret in a given namespace. If found, it authenticates the token in the "system:bootstrappers" group and with the "system:bootstrap:(token-id)" username.

All secrets must be of type "bootstrap.kubernetes.io/token". An example secret:

apiVersion: v1
kind: Secret
metadata:
  # Name MUST be of form "bootstrap-token-( token id )".
  name: bootstrap-token-( token id )
  namespace: kube-system
# Only secrets of this type will be evaluated.
type: bootstrap.kubernetes.io/token
data:
  token-secret: ( private part of token )
  token-id: ( token id )
  # Required key usage.
  usage-bootstrap-authentication: true
  auth-extra-groups: "system:bootstrappers:custom-group1,system:bootstrappers:custom-group2"
  # May also contain an expiry.

Tokens are expected to be of the form:

( token-id ).( token-secret )

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