Unverified Commit 2a804989 authored by Kubernetes Submit Queue's avatar Kubernetes Submit Queue Committed by GitHub

Merge pull request #59492 from dims/remove-old-keystone-authenticator

Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>. Remove experimental keystone authenticator **What this PR does / why we need it**: experimental-keystone-url and experimental-keystone-ca-file were always experimental. So we don't need a deprecation period. KeystoneAuthenticator was on the server side and needed userid/password to be passed in and used that to authenticate with Keystone. We now have authentication and authorization web hooks that can be used. There is a external repo with a webook for keystone which works fine along with the kubectl auth provider that was added in: a0cebcb5 So we don't need this older style / hard coded / experimental code anymore. **Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*: Fixes # **Special notes for your reviewer**: **Release note**: ```release-note kube-apiserver: the experimental in-tree Keystone password authenticator has been removed in favor of extensions that enable use of Keystone tokens. ```
parents 92e4d3da 18590378
......@@ -208,7 +208,6 @@ func TestAddFlags(t *testing.T) {
ConfigFile: "/token-webhook-config",
},
BootstrapToken: &kubeoptions.BootstrapTokenAuthenticationOptions{},
Keystone: &kubeoptions.KeystoneAuthenticationOptions{},
OIDC: &kubeoptions.OIDCAuthenticationOptions{
UsernameClaim: "sub",
},
......
......@@ -602,7 +602,6 @@ staging/src/k8s.io/apiserver/pkg/util/trace
staging/src/k8s.io/apiserver/pkg/util/webhook
staging/src/k8s.io/apiserver/pkg/util/wsstream
staging/src/k8s.io/apiserver/plugin/pkg/audit/log
staging/src/k8s.io/apiserver/plugin/pkg/authenticator/password/keystone
staging/src/k8s.io/apiserver/plugin/pkg/authenticator/password/passwordfile
staging/src/k8s.io/apiserver/plugin/pkg/authenticator/token/oidc
staging/src/k8s.io/apiserver/plugin/pkg/authenticator/token/oidc/testing
......
......@@ -24,7 +24,6 @@ go_library(
"//vendor/k8s.io/apiserver/pkg/authentication/token/cache:go_default_library",
"//vendor/k8s.io/apiserver/pkg/authentication/token/tokenfile:go_default_library",
"//vendor/k8s.io/apiserver/pkg/authentication/token/union:go_default_library",
"//vendor/k8s.io/apiserver/plugin/pkg/authenticator/password/keystone:go_default_library",
"//vendor/k8s.io/apiserver/plugin/pkg/authenticator/password/passwordfile:go_default_library",
"//vendor/k8s.io/apiserver/plugin/pkg/authenticator/request/basicauth:go_default_library",
"//vendor/k8s.io/apiserver/plugin/pkg/authenticator/token/oidc:go_default_library",
......
......@@ -33,7 +33,6 @@ import (
tokencache "k8s.io/apiserver/pkg/authentication/token/cache"
"k8s.io/apiserver/pkg/authentication/token/tokenfile"
tokenunion "k8s.io/apiserver/pkg/authentication/token/union"
"k8s.io/apiserver/plugin/pkg/authenticator/password/keystone"
"k8s.io/apiserver/plugin/pkg/authenticator/password/passwordfile"
"k8s.io/apiserver/plugin/pkg/authenticator/request/basicauth"
"k8s.io/apiserver/plugin/pkg/authenticator/token/oidc"
......@@ -61,8 +60,6 @@ type AuthenticatorConfig struct {
OIDCGroupsPrefix string
ServiceAccountKeyFiles []string
ServiceAccountLookup bool
KeystoneURL string
KeystoneCAFile string
WebhookTokenAuthnConfigFile string
WebhookTokenAuthnCacheTTL time.Duration
......@@ -108,14 +105,6 @@ func (config AuthenticatorConfig) New() (authenticator.Request, *spec.SecurityDe
authenticators = append(authenticators, basicAuth)
hasBasicAuth = true
}
if len(config.KeystoneURL) > 0 {
keystoneAuth, err := newAuthenticatorFromKeystoneURL(config.KeystoneURL, config.KeystoneCAFile)
if err != nil {
return nil, nil, err
}
authenticators = append(authenticators, keystoneAuth)
hasBasicAuth = true
}
// X509 methods
if len(config.ClientCAFile) > 0 {
......@@ -306,16 +295,6 @@ func newAuthenticatorFromClientCAFile(clientCAFile string) (authenticator.Reques
return x509.New(opts, x509.CommonNameUserConversion), nil
}
// newAuthenticatorFromKeystoneURL returns an authenticator.Request or an error
func newAuthenticatorFromKeystoneURL(keystoneURL string, keystoneCAFile string) (authenticator.Request, error) {
keystoneAuthenticator, err := keystone.NewKeystoneAuthenticator(keystoneURL, keystoneCAFile)
if err != nil {
return nil, err
}
return basicauth.New(keystoneAuthenticator), nil
}
func newWebhookTokenAuthenticator(webhookConfigFile string, ttl time.Duration) (authenticator.Token, error) {
webhookTokenAuthenticator, err := webhook.New(webhookConfigFile, ttl)
if err != nil {
......
......@@ -34,7 +34,6 @@ type BuiltInAuthenticationOptions struct {
Anonymous *AnonymousAuthenticationOptions
BootstrapToken *BootstrapTokenAuthenticationOptions
ClientCert *genericoptions.ClientCertAuthenticationOptions
Keystone *KeystoneAuthenticationOptions
OIDC *OIDCAuthenticationOptions
PasswordFile *PasswordFileAuthenticationOptions
RequestHeader *genericoptions.RequestHeaderAuthenticationOptions
......@@ -54,11 +53,6 @@ type BootstrapTokenAuthenticationOptions struct {
Enable bool
}
type KeystoneAuthenticationOptions struct {
URL string
CAFile string
}
type OIDCAuthenticationOptions struct {
CAFile string
ClientID string
......@@ -99,7 +93,6 @@ func (s *BuiltInAuthenticationOptions) WithAll() *BuiltInAuthenticationOptions {
WithAnonymous().
WithBootstrapToken().
WithClientCert().
WithKeystone().
WithOIDC().
WithPasswordFile().
WithRequestHeader().
......@@ -123,11 +116,6 @@ func (s *BuiltInAuthenticationOptions) WithClientCert() *BuiltInAuthenticationOp
return s
}
func (s *BuiltInAuthenticationOptions) WithKeystone() *BuiltInAuthenticationOptions {
s.Keystone = &KeystoneAuthenticationOptions{}
return s
}
func (s *BuiltInAuthenticationOptions) WithOIDC() *BuiltInAuthenticationOptions {
s.OIDC = &OIDCAuthenticationOptions{}
return s
......@@ -189,15 +177,6 @@ func (s *BuiltInAuthenticationOptions) AddFlags(fs *pflag.FlagSet) {
s.ClientCert.AddFlags(fs)
}
if s.Keystone != nil {
fs.StringVar(&s.Keystone.URL, "experimental-keystone-url", s.Keystone.URL,
"If passed, activates the keystone authentication plugin.")
fs.StringVar(&s.Keystone.CAFile, "experimental-keystone-ca-file", s.Keystone.CAFile, ""+
"If set, the Keystone server's certificate will be verified by one of the authorities "+
"in the experimental-keystone-ca-file, otherwise the host's root CA set will be used.")
}
if s.OIDC != nil {
fs.StringVar(&s.OIDC.IssuerURL, "oidc-issuer-url", s.OIDC.IssuerURL, ""+
"The URL of the OpenID issuer, only HTTPS scheme will be accepted. "+
......@@ -285,11 +264,6 @@ func (s *BuiltInAuthenticationOptions) ToAuthenticationConfig() authenticator.Au
ret.ClientCAFile = s.ClientCert.ClientCA
}
if s.Keystone != nil {
ret.KeystoneURL = s.Keystone.URL
ret.KeystoneCAFile = s.Keystone.CAFile
}
if s.OIDC != nil {
ret.OIDCCAFile = s.OIDC.CAFile
ret.OIDCClientID = s.OIDC.ClientID
......
......@@ -491,34 +491,6 @@
"Rev": "0c5108395e2debce0d731cf0287ddf7242066aba"
},
{
"ImportPath": "github.com/gophercloud/gophercloud",
"Rev": "8e59687aa4b27ab22a0bf3295f1e165ff7bd5f97"
},
{
"ImportPath": "github.com/gophercloud/gophercloud/openstack",
"Rev": "8e59687aa4b27ab22a0bf3295f1e165ff7bd5f97"
},
{
"ImportPath": "github.com/gophercloud/gophercloud/openstack/identity/v2/tenants",
"Rev": "8e59687aa4b27ab22a0bf3295f1e165ff7bd5f97"
},
{
"ImportPath": "github.com/gophercloud/gophercloud/openstack/identity/v2/tokens",
"Rev": "8e59687aa4b27ab22a0bf3295f1e165ff7bd5f97"
},
{
"ImportPath": "github.com/gophercloud/gophercloud/openstack/identity/v3/tokens",
"Rev": "8e59687aa4b27ab22a0bf3295f1e165ff7bd5f97"
},
{
"ImportPath": "github.com/gophercloud/gophercloud/openstack/utils",
"Rev": "8e59687aa4b27ab22a0bf3295f1e165ff7bd5f97"
},
{
"ImportPath": "github.com/gophercloud/gophercloud/pagination",
"Rev": "8e59687aa4b27ab22a0bf3295f1e165ff7bd5f97"
},
{
"ImportPath": "github.com/grpc-ecosystem/go-grpc-prometheus",
"Rev": "2500245aa6110c562d17020fb31a2c133d737799"
},
......
......@@ -23,7 +23,6 @@ filegroup(
srcs = [
":package-srcs",
"//staging/src/k8s.io/apiserver/plugin/pkg/authenticator/password/allow:all-srcs",
"//staging/src/k8s.io/apiserver/plugin/pkg/authenticator/password/keystone:all-srcs",
"//staging/src/k8s.io/apiserver/plugin/pkg/authenticator/password/passwordfile:all-srcs",
],
tags = ["automanaged"],
......
package(default_visibility = ["//visibility:public"])
load(
"@io_bazel_rules_go//go:def.bzl",
"go_library",
)
go_library(
name = "go_default_library",
srcs = [
"doc.go",
"keystone.go",
],
importpath = "k8s.io/apiserver/plugin/pkg/authenticator/password/keystone",
deps = [
"//vendor/github.com/golang/glog:go_default_library",
"//vendor/github.com/gophercloud/gophercloud:go_default_library",
"//vendor/github.com/gophercloud/gophercloud/openstack:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/util/net:go_default_library",
"//vendor/k8s.io/apiserver/pkg/authentication/user:go_default_library",
"//vendor/k8s.io/client-go/util/cert:go_default_library",
],
)
filegroup(
name = "package-srcs",
srcs = glob(["**"]),
tags = ["automanaged"],
visibility = ["//visibility:private"],
)
filegroup(
name = "all-srcs",
srcs = [":package-srcs"],
tags = ["automanaged"],
)
/*
Copyright 2014 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
// Package keystone provides authentication via keystone.
// For details about keystone and how to use the plugin, refer to
// https://github.com/kubernetes/kubernetes.github.io/blob/master/docs/admin/authentication.md
package keystone // import "k8s.io/apiserver/plugin/pkg/authenticator/password/keystone"
/*
Copyright 2015 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package keystone
import (
"crypto/tls"
"errors"
"net/http"
"strings"
"github.com/golang/glog"
"github.com/gophercloud/gophercloud"
"github.com/gophercloud/gophercloud/openstack"
netutil "k8s.io/apimachinery/pkg/util/net"
"k8s.io/apiserver/pkg/authentication/user"
certutil "k8s.io/client-go/util/cert"
)
// KeystoneAuthenticator contacts openstack keystone to validate user's credentials passed in the request.
// The keystone endpoint is passed during apiserver startup
type KeystoneAuthenticator struct {
authURL string
transport http.RoundTripper
}
// AuthenticatePassword checks the username, password via keystone call
func (keystoneAuthenticator *KeystoneAuthenticator) AuthenticatePassword(username string, password string) (user.Info, bool, error) {
opts := gophercloud.AuthOptions{
IdentityEndpoint: keystoneAuthenticator.authURL,
Username: username,
Password: password,
}
_, err := keystoneAuthenticator.AuthenticatedClient(opts)
if err != nil {
glog.Info("Failed: Starting openstack authenticate client:" + err.Error())
return nil, false, errors.New("Failed to authenticate")
}
return &user.DefaultInfo{Name: username}, true, nil
}
// AuthenticatedClient logs in to an OpenStack cloud found at the identity endpoint specified by options, acquires a
// token, and returns a Client instance that's ready to operate.
func (keystoneAuthenticator *KeystoneAuthenticator) AuthenticatedClient(options gophercloud.AuthOptions) (*gophercloud.ProviderClient, error) {
client, err := openstack.NewClient(options.IdentityEndpoint)
if err != nil {
return nil, err
}
if keystoneAuthenticator.transport != nil {
client.HTTPClient.Transport = keystoneAuthenticator.transport
}
err = openstack.Authenticate(client, options)
return client, err
}
// NewKeystoneAuthenticator returns a password authenticator that validates credentials using openstack keystone
func NewKeystoneAuthenticator(authURL string, caFile string) (*KeystoneAuthenticator, error) {
if !strings.HasPrefix(authURL, "https") {
return nil, errors.New("Auth URL should be secure and start with https")
}
if authURL == "" {
return nil, errors.New("Auth URL is empty")
}
if caFile != "" {
roots, err := certutil.NewPool(caFile)
if err != nil {
return nil, err
}
config := &tls.Config{}
config.RootCAs = roots
transport := netutil.SetOldTransportDefaults(&http.Transport{TLSClientConfig: config})
return &KeystoneAuthenticator{authURL, transport}, nil
}
return &KeystoneAuthenticator{authURL: authURL}, nil
}
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