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master_config.go
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master_config.go
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package origin
import (
"crypto/x509"
"fmt"
"net/http"
etcdclient "github.com/coreos/go-etcd/etcd"
"github.com/GoogleCloudPlatform/kubernetes/pkg/admission"
kapi "github.com/GoogleCloudPlatform/kubernetes/pkg/api"
"github.com/GoogleCloudPlatform/kubernetes/pkg/apiserver"
"github.com/GoogleCloudPlatform/kubernetes/pkg/auth/user"
kclient "github.com/GoogleCloudPlatform/kubernetes/pkg/client"
"github.com/GoogleCloudPlatform/kubernetes/pkg/tools"
kutil "github.com/GoogleCloudPlatform/kubernetes/pkg/util"
"github.com/openshift/origin/pkg/api/latest"
"github.com/openshift/origin/pkg/auth/authenticator"
"github.com/openshift/origin/pkg/auth/authenticator/request/bearertoken"
"github.com/openshift/origin/pkg/auth/authenticator/request/paramtoken"
"github.com/openshift/origin/pkg/auth/authenticator/request/unionrequest"
"github.com/openshift/origin/pkg/auth/authenticator/request/x509request"
"github.com/openshift/origin/pkg/auth/group"
authnregistry "github.com/openshift/origin/pkg/auth/oauth/registry"
"github.com/openshift/origin/pkg/authorization/authorizer"
policycache "github.com/openshift/origin/pkg/authorization/cache"
clusterpolicyregistry "github.com/openshift/origin/pkg/authorization/registry/clusterpolicy"
clusterpolicyetcd "github.com/openshift/origin/pkg/authorization/registry/clusterpolicy/etcd"
clusterpolicybindingregistry "github.com/openshift/origin/pkg/authorization/registry/clusterpolicybinding"
clusterpolicybindingetcd "github.com/openshift/origin/pkg/authorization/registry/clusterpolicybinding/etcd"
policyregistry "github.com/openshift/origin/pkg/authorization/registry/policy"
policyetcd "github.com/openshift/origin/pkg/authorization/registry/policy/etcd"
policybindingregistry "github.com/openshift/origin/pkg/authorization/registry/policybinding"
policybindingetcd "github.com/openshift/origin/pkg/authorization/registry/policybinding/etcd"
"github.com/openshift/origin/pkg/authorization/rulevalidation"
osclient "github.com/openshift/origin/pkg/client"
configapi "github.com/openshift/origin/pkg/cmd/server/api"
"github.com/openshift/origin/pkg/cmd/server/bootstrappolicy"
"github.com/openshift/origin/pkg/cmd/server/etcd"
"github.com/openshift/origin/pkg/cmd/util/variable"
accesstokenregistry "github.com/openshift/origin/pkg/oauth/registry/oauthaccesstoken"
accesstokenetcd "github.com/openshift/origin/pkg/oauth/registry/oauthaccesstoken/etcd"
projectauth "github.com/openshift/origin/pkg/project/auth"
userregistry "github.com/openshift/origin/pkg/user/registry/user"
useretcd "github.com/openshift/origin/pkg/user/registry/user/etcd"
)
const (
unauthenticatedUsername = "system:anonymous"
)
// MasterConfig defines the required parameters for starting the OpenShift master
type MasterConfig struct {
Options configapi.MasterConfig
Authenticator authenticator.Request
Authorizer authorizer.Authorizer
AuthorizationAttributeBuilder authorizer.AuthorizationAttributeBuilder
PolicyCache *policycache.PolicyCache
ProjectAuthorizationCache *projectauth.AuthorizationCache
// Map requests to contexts
RequestContextMapper kapi.RequestContextMapper
AdmissionControl admission.Interface
TLS bool
// a function that returns the appropriate image to use for a named component
ImageFor func(component string) string
EtcdHelper tools.EtcdHelper
KubeletClientConfig *kclient.KubeletConfig
// ClientCAs will be used to request client certificates in connections to the API.
// This CertPool should contain all the CAs that will be used for client certificate verification.
ClientCAs *x509.CertPool
// APIClientCAs is used to verify client certificates presented for API auth
APIClientCAs *x509.CertPool
// PrivilegedLoopbackClientConfig is the client configuration used to call OpenShift APIs from system components
// To apply different access control to a system component, create a client config specifically for that component.
PrivilegedLoopbackClientConfig kclient.Config
// DeployerPrivilegedLoopbackClientConfig is the client configuration used to call OpenShift APIs from launched deployer pods
DeployerOSClientConfig kclient.Config
// kubeClient is the client used to call Kubernetes APIs from system components, built from KubeClientConfig.
// It should only be accessed via the *Client() helper methods.
// To apply different access control to a system component, create a separate client/config specifically for that component.
PrivilegedLoopbackKubernetesClient *kclient.Client
// osClient is the client used to call OpenShift APIs from system components, built from PrivilegedLoopbackClientConfig.
// It should only be accessed via the *Client() helper methods.
// To apply different access control to a system component, create a separate client/config specifically for that component.
PrivilegedLoopbackOpenShiftClient *osclient.Client
}
func BuildMasterConfig(options configapi.MasterConfig) (*MasterConfig, error) {
client, err := etcd.GetAndTestEtcdClient(options.EtcdClientInfo)
if err != nil {
return nil, err
}
etcdHelper, err := NewEtcdHelper(client, options.EtcdStorageConfig.OpenShiftStorageVersion, options.EtcdStorageConfig.OpenShiftStoragePrefix)
if err != nil {
return nil, fmt.Errorf("Error setting up server storage: %v", err)
}
clientCAs, err := configapi.GetClientCertCAPool(options)
if err != nil {
return nil, err
}
apiClientCAs, err := configapi.GetAPIClientCertCAPool(options)
if err != nil {
return nil, err
}
privilegedLoopbackKubeClient, _, err := configapi.GetKubeClient(options.MasterClients.OpenShiftLoopbackKubeConfig)
if err != nil {
return nil, err
}
privilegedLoopbackOpenShiftClient, privilegedLoopbackClientConfig, err := configapi.GetOpenShiftClient(options.MasterClients.OpenShiftLoopbackKubeConfig)
if err != nil {
return nil, err
}
_, deployerOSClientConfig, err := configapi.GetOpenShiftClient(options.MasterClients.DeployerKubeConfig)
if err != nil {
return nil, err
}
imageTemplate := variable.NewDefaultImageTemplate()
imageTemplate.Format = options.ImageConfig.Format
imageTemplate.Latest = options.ImageConfig.Latest
policyCache := newPolicyCache(etcdHelper)
requestContextMapper := kapi.NewRequestContextMapper()
kubeletClientConfig := configapi.GetKubeletClientConfig(options)
// in-order list of plug-ins that should intercept admission decisions (origin only intercepts)
admissionControlPluginNames := []string{"OriginNamespaceLifecycle"}
admissionController := admission.NewFromPlugins(privilegedLoopbackKubeClient, admissionControlPluginNames, "")
config := &MasterConfig{
Options: options,
Authenticator: newAuthenticator(options.ServingInfo, etcdHelper, apiClientCAs),
Authorizer: newAuthorizer(policyCache),
AuthorizationAttributeBuilder: newAuthorizationAttributeBuilder(requestContextMapper),
PolicyCache: policyCache,
ProjectAuthorizationCache: newProjectAuthorizationCache(privilegedLoopbackOpenShiftClient, privilegedLoopbackKubeClient),
RequestContextMapper: requestContextMapper,
AdmissionControl: admissionController,
TLS: configapi.UseTLS(options.ServingInfo),
ImageFor: imageTemplate.ExpandOrDie,
EtcdHelper: etcdHelper,
KubeletClientConfig: kubeletClientConfig,
ClientCAs: clientCAs,
APIClientCAs: apiClientCAs,
DeployerOSClientConfig: *deployerOSClientConfig,
PrivilegedLoopbackClientConfig: *privilegedLoopbackClientConfig,
PrivilegedLoopbackOpenShiftClient: privilegedLoopbackOpenShiftClient,
PrivilegedLoopbackKubernetesClient: privilegedLoopbackKubeClient,
}
return config, nil
}
func newAuthenticator(servingInfo configapi.ServingInfo, etcdHelper tools.EtcdHelper, apiClientCAs *x509.CertPool) authenticator.Request {
tokenAuthenticator := getEtcdTokenAuthenticator(etcdHelper)
authenticators := []authenticator.Request{}
authenticators = append(authenticators, bearertoken.New(tokenAuthenticator, true))
// Allow token as access_token param for WebSockets
// TODO: make the param name configurable
// TODO: limit this authenticator to watch methods, if possible
authenticators = append(authenticators, paramtoken.New("access_token", tokenAuthenticator, true))
if configapi.UseTLS(servingInfo) {
// build cert authenticator
// TODO: add "system:" prefix in authenticator, limit cert to username
// TODO: add "system:" prefix to groups in authenticator, limit cert to group name
opts := x509request.DefaultVerifyOptions()
opts.Roots = apiClientCAs
certauth := x509request.New(opts, x509request.SubjectToUserConversion)
authenticators = append(authenticators, certauth)
}
// TODO: make anonymous auth optional?
ret := &unionrequest.Authenticator{
FailOnError: true,
Handlers: []authenticator.Request{
group.NewGroupAdder(unionrequest.NewUnionAuthentication(authenticators...), []string{bootstrappolicy.AuthenticatedGroup}),
authenticator.RequestFunc(func(req *http.Request) (user.Info, bool, error) {
return &user.DefaultInfo{Name: unauthenticatedUsername, Groups: []string{bootstrappolicy.UnauthenticatedGroup}}, true, nil
}),
},
}
return ret
}
func newProjectAuthorizationCache(openshiftClient *osclient.Client, kubeClient *kclient.Client) *projectauth.AuthorizationCache {
return projectauth.NewAuthorizationCache(
projectauth.NewReviewer(openshiftClient),
kubeClient.Namespaces(),
openshiftClient,
openshiftClient,
openshiftClient,
openshiftClient,
)
}
func newPolicyCache(etcdHelper tools.EtcdHelper) *policycache.PolicyCache {
policyRegistry := policyregistry.NewRegistry(policyetcd.NewStorage(etcdHelper))
policyBindingRegistry := policybindingregistry.NewRegistry(policybindingetcd.NewStorage(etcdHelper))
clusterPolicyRegistry := clusterpolicyregistry.NewRegistry(clusterpolicyetcd.NewStorage(etcdHelper))
clusterPolicyBindingRegistry := clusterpolicybindingregistry.NewRegistry(clusterpolicybindingetcd.NewStorage(etcdHelper))
return policycache.NewPolicyCache(policyBindingRegistry, policyRegistry, clusterPolicyBindingRegistry, clusterPolicyRegistry)
}
func newAuthorizer(policyCache *policycache.PolicyCache) authorizer.Authorizer {
authorizer := authorizer.NewAuthorizer(rulevalidation.NewDefaultRuleResolver(policyCache, policyCache, policyCache, policyCache))
return authorizer
}
func newAuthorizationAttributeBuilder(requestContextMapper kapi.RequestContextMapper) authorizer.AuthorizationAttributeBuilder {
authorizationAttributeBuilder := authorizer.NewAuthorizationAttributeBuilder(requestContextMapper, &apiserver.APIRequestInfoResolver{kutil.NewStringSet("api", "osapi"), latest.RESTMapper})
return authorizationAttributeBuilder
}
func getEtcdTokenAuthenticator(etcdHelper tools.EtcdHelper) authenticator.Token {
accessTokenStorage := accesstokenetcd.NewREST(etcdHelper)
accessTokenRegistry := accesstokenregistry.NewRegistry(accessTokenStorage)
userStorage := useretcd.NewREST(etcdHelper)
userRegistry := userregistry.NewRegistry(userStorage)
return authnregistry.NewTokenAuthenticator(accessTokenRegistry, userRegistry)
}
// KubeClient returns the kubernetes client object
func (c *MasterConfig) KubeClient() *kclient.Client {
return c.PrivilegedLoopbackKubernetesClient
}
// PolicyClient returns the policy client object
// It must have the following capabilities:
// list, watch all policyBindings in all namespaces
// list, watch all policies in all namespaces
// create resourceAccessReviews in all namespaces
func (c *MasterConfig) PolicyClient() *osclient.Client {
return c.PrivilegedLoopbackOpenShiftClient
}
// SdnClient returns the sdn client object
// It must have the capability to get/list/watch/create/delete
// HostSubnets. And have the capability to get ClusterNetwork.
func (c *MasterConfig) SdnClient() *osclient.Client {
return c.PrivilegedLoopbackOpenShiftClient
}
// DeploymentClient returns the deployment client object
func (c *MasterConfig) DeploymentClient() *kclient.Client {
return c.PrivilegedLoopbackKubernetesClient
}
// DNSServerClient returns the DNS server client object
// It must have the following capabilities:
// list, watch all services in all namespaces
func (c *MasterConfig) DNSServerClient() *kclient.Client {
return c.PrivilegedLoopbackKubernetesClient
}
// BuildLogClient returns the build log client object
func (c *MasterConfig) BuildLogClient() *kclient.Client {
return c.PrivilegedLoopbackKubernetesClient
}
// WebHookClient returns the webhook client object
func (c *MasterConfig) WebHookClient() *osclient.Client {
return c.PrivilegedLoopbackOpenShiftClient
}
// BuildControllerClients returns the build controller client objects
func (c *MasterConfig) BuildControllerClients() (*osclient.Client, *kclient.Client) {
return c.PrivilegedLoopbackOpenShiftClient, c.PrivilegedLoopbackKubernetesClient
}
// ImageChangeControllerClient returns the openshift client object
func (c *MasterConfig) ImageChangeControllerClient() *osclient.Client {
return c.PrivilegedLoopbackOpenShiftClient
}
// ImageImportControllerClient returns the deployment client object
func (c *MasterConfig) ImageImportControllerClient() *osclient.Client {
return c.PrivilegedLoopbackOpenShiftClient
}
// DeploymentControllerClients returns the deployment controller client object
func (c *MasterConfig) DeploymentControllerClients() (*osclient.Client, *kclient.Client) {
return c.PrivilegedLoopbackOpenShiftClient, c.PrivilegedLoopbackKubernetesClient
}
// DeployerClientConfig returns the client configuration a Deployer instance launched in a pod
// should use when making API calls.
func (c *MasterConfig) DeployerClientConfig() *kclient.Config {
return &c.DeployerOSClientConfig
}
func (c *MasterConfig) DeploymentConfigControllerClients() (*osclient.Client, *kclient.Client) {
return c.PrivilegedLoopbackOpenShiftClient, c.PrivilegedLoopbackKubernetesClient
}
func (c *MasterConfig) DeploymentConfigChangeControllerClients() (*osclient.Client, *kclient.Client) {
return c.PrivilegedLoopbackOpenShiftClient, c.PrivilegedLoopbackKubernetesClient
}
func (c *MasterConfig) DeploymentImageChangeControllerClient() *osclient.Client {
return c.PrivilegedLoopbackOpenShiftClient
}
// OriginNamespaceControllerClients returns a client for openshift and kubernetes.
// The openshift client object must have authority to delete openshift content in any namespace
// The kubernetes client object must have authority to execute a finalize request on a namespace
func (c *MasterConfig) OriginNamespaceControllerClients() (*osclient.Client, *kclient.Client) {
return c.PrivilegedLoopbackOpenShiftClient, c.PrivilegedLoopbackKubernetesClient
}
// NewEtcdHelper returns an EtcdHelper for the provided storage version.
func NewEtcdHelper(client *etcdclient.Client, version, prefix string) (oshelper tools.EtcdHelper, err error) {
interfaces, err := latest.InterfacesFor(version)
if err != nil {
return tools.EtcdHelper{}, err
}
return tools.NewEtcdHelper(client, interfaces.Codec, prefix), nil
}