2019-01-12 04:58:27 +00:00
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/*
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Copyright 2014 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package master
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import (
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"context"
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"fmt"
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"net"
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"net/http"
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"reflect"
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"strconv"
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"time"
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admissionregistrationv1 "k8s.io/api/admissionregistration/v1"
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admissionregistrationv1beta1 "k8s.io/api/admissionregistration/v1beta1"
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appsv1 "k8s.io/api/apps/v1"
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authenticationv1 "k8s.io/api/authentication/v1"
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authenticationv1beta1 "k8s.io/api/authentication/v1beta1"
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authorizationapiv1 "k8s.io/api/authorization/v1"
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authorizationapiv1beta1 "k8s.io/api/authorization/v1beta1"
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autoscalingapiv1 "k8s.io/api/autoscaling/v1"
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autoscalingapiv2beta1 "k8s.io/api/autoscaling/v2beta1"
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autoscalingapiv2beta2 "k8s.io/api/autoscaling/v2beta2"
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batchapiv1 "k8s.io/api/batch/v1"
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batchapiv1beta1 "k8s.io/api/batch/v1beta1"
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batchapiv2alpha1 "k8s.io/api/batch/v2alpha1"
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certificatesapiv1 "k8s.io/api/certificates/v1"
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certificatesapiv1beta1 "k8s.io/api/certificates/v1beta1"
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coordinationapiv1 "k8s.io/api/coordination/v1"
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coordinationapiv1beta1 "k8s.io/api/coordination/v1beta1"
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apiv1 "k8s.io/api/core/v1"
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discoveryv1beta1 "k8s.io/api/discovery/v1beta1"
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eventsv1 "k8s.io/api/events/v1"
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eventsv1beta1 "k8s.io/api/events/v1beta1"
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extensionsapiv1beta1 "k8s.io/api/extensions/v1beta1"
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flowcontrolv1alpha1 "k8s.io/api/flowcontrol/v1alpha1"
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networkingapiv1 "k8s.io/api/networking/v1"
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networkingapiv1beta1 "k8s.io/api/networking/v1beta1"
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nodev1alpha1 "k8s.io/api/node/v1alpha1"
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nodev1beta1 "k8s.io/api/node/v1beta1"
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policyapiv1beta1 "k8s.io/api/policy/v1beta1"
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rbacv1 "k8s.io/api/rbac/v1"
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rbacv1alpha1 "k8s.io/api/rbac/v1alpha1"
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rbacv1beta1 "k8s.io/api/rbac/v1beta1"
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schedulingapiv1 "k8s.io/api/scheduling/v1"
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schedulingv1alpha1 "k8s.io/api/scheduling/v1alpha1"
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schedulingapiv1beta1 "k8s.io/api/scheduling/v1beta1"
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settingsv1alpha1 "k8s.io/api/settings/v1alpha1"
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storageapiv1 "k8s.io/api/storage/v1"
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storageapiv1alpha1 "k8s.io/api/storage/v1alpha1"
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storageapiv1beta1 "k8s.io/api/storage/v1beta1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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utilnet "k8s.io/apimachinery/pkg/util/net"
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"k8s.io/apimachinery/pkg/util/runtime"
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"k8s.io/apiserver/pkg/endpoints/discovery"
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"k8s.io/apiserver/pkg/registry/generic"
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genericapiserver "k8s.io/apiserver/pkg/server"
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"k8s.io/apiserver/pkg/server/dynamiccertificates"
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"k8s.io/apiserver/pkg/server/healthz"
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serverstorage "k8s.io/apiserver/pkg/server/storage"
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storagefactory "k8s.io/apiserver/pkg/storage/storagebackend/factory"
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utilfeature "k8s.io/apiserver/pkg/util/feature"
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"k8s.io/client-go/informers"
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"k8s.io/client-go/kubernetes"
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corev1client "k8s.io/client-go/kubernetes/typed/core/v1"
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discoveryclient "k8s.io/client-go/kubernetes/typed/discovery/v1beta1"
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api "k8s.io/kubernetes/pkg/apis/core"
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"k8s.io/kubernetes/pkg/features"
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kubeoptions "k8s.io/kubernetes/pkg/kubeapiserver/options"
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kubeletclient "k8s.io/kubernetes/pkg/kubelet/client"
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"k8s.io/kubernetes/pkg/master/controller/clusterauthenticationtrust"
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"k8s.io/kubernetes/pkg/master/reconcilers"
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"k8s.io/kubernetes/pkg/master/tunneler"
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"k8s.io/kubernetes/pkg/routes"
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"k8s.io/kubernetes/pkg/serviceaccount"
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nodeutil "k8s.io/kubernetes/pkg/util/node"
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"k8s.io/klog/v2"
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// RESTStorage installers
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admissionregistrationrest "k8s.io/kubernetes/pkg/registry/admissionregistration/rest"
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appsrest "k8s.io/kubernetes/pkg/registry/apps/rest"
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authenticationrest "k8s.io/kubernetes/pkg/registry/authentication/rest"
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authorizationrest "k8s.io/kubernetes/pkg/registry/authorization/rest"
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autoscalingrest "k8s.io/kubernetes/pkg/registry/autoscaling/rest"
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batchrest "k8s.io/kubernetes/pkg/registry/batch/rest"
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certificatesrest "k8s.io/kubernetes/pkg/registry/certificates/rest"
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coordinationrest "k8s.io/kubernetes/pkg/registry/coordination/rest"
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corerest "k8s.io/kubernetes/pkg/registry/core/rest"
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discoveryrest "k8s.io/kubernetes/pkg/registry/discovery/rest"
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eventsrest "k8s.io/kubernetes/pkg/registry/events/rest"
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extensionsrest "k8s.io/kubernetes/pkg/registry/extensions/rest"
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flowcontrolrest "k8s.io/kubernetes/pkg/registry/flowcontrol/rest"
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networkingrest "k8s.io/kubernetes/pkg/registry/networking/rest"
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noderest "k8s.io/kubernetes/pkg/registry/node/rest"
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policyrest "k8s.io/kubernetes/pkg/registry/policy/rest"
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rbacrest "k8s.io/kubernetes/pkg/registry/rbac/rest"
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schedulingrest "k8s.io/kubernetes/pkg/registry/scheduling/rest"
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settingsrest "k8s.io/kubernetes/pkg/registry/settings/rest"
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storagerest "k8s.io/kubernetes/pkg/registry/storage/rest"
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)
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const (
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// DefaultEndpointReconcilerInterval is the default amount of time for how often the endpoints for
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// the kubernetes Service are reconciled.
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DefaultEndpointReconcilerInterval = 10 * time.Second
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// DefaultEndpointReconcilerTTL is the default TTL timeout for the storage layer
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DefaultEndpointReconcilerTTL = 15 * time.Second
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)
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// ExtraConfig defines extra configuration for the master
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type ExtraConfig struct {
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ClusterAuthenticationInfo clusterauthenticationtrust.ClusterAuthenticationInfo
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APIResourceConfigSource serverstorage.APIResourceConfigSource
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StorageFactory serverstorage.StorageFactory
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EndpointReconcilerConfig EndpointReconcilerConfig
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EventTTL time.Duration
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KubeletClientConfig kubeletclient.KubeletClientConfig
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// Used to start and monitor tunneling
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Tunneler tunneler.Tunneler
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EnableLogsSupport bool
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ProxyTransport http.RoundTripper
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// Values to build the IP addresses used by discovery
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// The range of IPs to be assigned to services with type=ClusterIP or greater
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ServiceIPRange net.IPNet
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// The IP address for the GenericAPIServer service (must be inside ServiceIPRange)
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APIServerServiceIP net.IP
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// dual stack services, the range represents an alternative IP range for service IP
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// must be of different family than primary (ServiceIPRange)
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SecondaryServiceIPRange net.IPNet
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// the secondary IP address the GenericAPIServer service (must be inside SecondaryServiceIPRange)
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SecondaryAPIServerServiceIP net.IP
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// Port for the apiserver service.
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APIServerServicePort int
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// TODO, we can probably group service related items into a substruct to make it easier to configure
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// the API server items and `Extra*` fields likely fit nicely together.
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// The range of ports to be assigned to services with type=NodePort or greater
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ServiceNodePortRange utilnet.PortRange
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// Additional ports to be exposed on the GenericAPIServer service
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// extraServicePorts is injectable in the event that more ports
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// (other than the default 443/tcp) are exposed on the GenericAPIServer
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// and those ports need to be load balanced by the GenericAPIServer
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// service because this pkg is linked by out-of-tree projects
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// like openshift which want to use the GenericAPIServer but also do
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// more stuff.
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ExtraServicePorts []apiv1.ServicePort
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// Additional ports to be exposed on the GenericAPIServer endpoints
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// Port names should align with ports defined in ExtraServicePorts
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ExtraEndpointPorts []apiv1.EndpointPort
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// If non-zero, the "kubernetes" services uses this port as NodePort.
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KubernetesServiceNodePort int
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// Number of masters running; all masters must be started with the
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// same value for this field. (Numbers > 1 currently untested.)
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MasterCount int
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// MasterEndpointReconcileTTL sets the time to live in seconds of an
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// endpoint record recorded by each master. The endpoints are checked at an
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// interval that is 2/3 of this value and this value defaults to 15s if
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// unset. In very large clusters, this value may be increased to reduce the
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// possibility that the master endpoint record expires (due to other load
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// on the etcd server) and causes masters to drop in and out of the
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// kubernetes service record. It is not recommended to set this value below
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// 15s.
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MasterEndpointReconcileTTL time.Duration
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// Selects which reconciler to use
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EndpointReconcilerType reconcilers.Type
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ServiceAccountIssuer serviceaccount.TokenGenerator
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ServiceAccountMaxExpiration time.Duration
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ExtendExpiration bool
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// ServiceAccountIssuerDiscovery
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ServiceAccountIssuerURL string
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ServiceAccountJWKSURI string
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ServiceAccountPublicKeys []interface{}
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VersionedInformers informers.SharedInformerFactory
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}
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// Config defines configuration for the master
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type Config struct {
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GenericConfig *genericapiserver.Config
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ExtraConfig ExtraConfig
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}
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type completedConfig struct {
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GenericConfig genericapiserver.CompletedConfig
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ExtraConfig *ExtraConfig
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}
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// CompletedConfig embeds a private pointer that cannot be instantiated outside of this package
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type CompletedConfig struct {
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*completedConfig
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}
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// EndpointReconcilerConfig holds the endpoint reconciler and endpoint reconciliation interval to be
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// used by the master.
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type EndpointReconcilerConfig struct {
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Reconciler reconcilers.EndpointReconciler
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Interval time.Duration
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}
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// Master contains state for a Kubernetes cluster master/api server.
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type Master struct {
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GenericAPIServer *genericapiserver.GenericAPIServer
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ClusterAuthenticationInfo clusterauthenticationtrust.ClusterAuthenticationInfo
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}
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func (c *Config) createMasterCountReconciler() reconcilers.EndpointReconciler {
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endpointClient := corev1client.NewForConfigOrDie(c.GenericConfig.LoopbackClientConfig)
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var endpointSliceClient discoveryclient.EndpointSlicesGetter
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if utilfeature.DefaultFeatureGate.Enabled(features.EndpointSlice) {
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endpointSliceClient = discoveryclient.NewForConfigOrDie(c.GenericConfig.LoopbackClientConfig)
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}
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endpointsAdapter := reconcilers.NewEndpointsAdapter(endpointClient, endpointSliceClient)
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return reconcilers.NewMasterCountEndpointReconciler(c.ExtraConfig.MasterCount, endpointsAdapter)
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}
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func (c *Config) createNoneReconciler() reconcilers.EndpointReconciler {
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return reconcilers.NewNoneEndpointReconciler()
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}
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func (c *Config) createLeaseReconciler() reconcilers.EndpointReconciler {
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endpointClient := corev1client.NewForConfigOrDie(c.GenericConfig.LoopbackClientConfig)
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var endpointSliceClient discoveryclient.EndpointSlicesGetter
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if utilfeature.DefaultFeatureGate.Enabled(features.EndpointSlice) {
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endpointSliceClient = discoveryclient.NewForConfigOrDie(c.GenericConfig.LoopbackClientConfig)
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}
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endpointsAdapter := reconcilers.NewEndpointsAdapter(endpointClient, endpointSliceClient)
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ttl := c.ExtraConfig.MasterEndpointReconcileTTL
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config, err := c.ExtraConfig.StorageFactory.NewConfig(api.Resource("apiServerIPInfo"))
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if err != nil {
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klog.Fatalf("Error determining service IP ranges: %v", err)
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}
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leaseStorage, _, err := storagefactory.Create(*config)
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if err != nil {
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|
|
klog.Fatalf("Error creating storage factory: %v", err)
|
|
|
|
}
|
|
|
|
masterLeases := reconcilers.NewLeases(leaseStorage, "/masterleases/", ttl)
|
2019-09-27 21:51:53 +00:00
|
|
|
|
|
|
|
return reconcilers.NewLeaseEndpointReconciler(endpointsAdapter, masterLeases)
|
2019-01-12 04:58:27 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
func (c *Config) createEndpointReconciler() reconcilers.EndpointReconciler {
|
|
|
|
klog.Infof("Using reconciler: %v", c.ExtraConfig.EndpointReconcilerType)
|
|
|
|
switch c.ExtraConfig.EndpointReconcilerType {
|
|
|
|
// there are numerous test dependencies that depend on a default controller
|
|
|
|
case "", reconcilers.MasterCountReconcilerType:
|
|
|
|
return c.createMasterCountReconciler()
|
|
|
|
case reconcilers.LeaseEndpointReconcilerType:
|
|
|
|
return c.createLeaseReconciler()
|
|
|
|
case reconcilers.NoneEndpointReconcilerType:
|
|
|
|
return c.createNoneReconciler()
|
|
|
|
default:
|
|
|
|
klog.Fatalf("Reconciler not implemented: %v", c.ExtraConfig.EndpointReconcilerType)
|
|
|
|
}
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
|
|
|
// Complete fills in any fields not set that are required to have valid data. It's mutating the receiver.
|
2019-12-12 01:27:03 +00:00
|
|
|
func (c *Config) Complete() CompletedConfig {
|
|
|
|
cfg := completedConfig{
|
|
|
|
c.GenericConfig.Complete(c.ExtraConfig.VersionedInformers),
|
|
|
|
&c.ExtraConfig,
|
2019-01-12 04:58:27 +00:00
|
|
|
}
|
|
|
|
|
2019-12-12 01:27:03 +00:00
|
|
|
serviceIPRange, apiServerServiceIP, err := ServiceIPRange(cfg.ExtraConfig.ServiceIPRange)
|
2019-01-12 04:58:27 +00:00
|
|
|
if err != nil {
|
|
|
|
klog.Fatalf("Error determining service IP ranges: %v", err)
|
|
|
|
}
|
2019-12-12 01:27:03 +00:00
|
|
|
if cfg.ExtraConfig.ServiceIPRange.IP == nil {
|
|
|
|
cfg.ExtraConfig.ServiceIPRange = serviceIPRange
|
2019-01-12 04:58:27 +00:00
|
|
|
}
|
2019-12-12 01:27:03 +00:00
|
|
|
if cfg.ExtraConfig.APIServerServiceIP == nil {
|
|
|
|
cfg.ExtraConfig.APIServerServiceIP = apiServerServiceIP
|
2019-01-12 04:58:27 +00:00
|
|
|
}
|
|
|
|
|
2019-12-12 01:27:03 +00:00
|
|
|
discoveryAddresses := discovery.DefaultAddresses{DefaultAddress: cfg.GenericConfig.ExternalAddress}
|
2019-01-12 04:58:27 +00:00
|
|
|
discoveryAddresses.CIDRRules = append(discoveryAddresses.CIDRRules,
|
2019-12-12 01:27:03 +00:00
|
|
|
discovery.CIDRRule{IPRange: cfg.ExtraConfig.ServiceIPRange, Address: net.JoinHostPort(cfg.ExtraConfig.APIServerServiceIP.String(), strconv.Itoa(cfg.ExtraConfig.APIServerServicePort))})
|
|
|
|
cfg.GenericConfig.DiscoveryAddresses = discoveryAddresses
|
2019-01-12 04:58:27 +00:00
|
|
|
|
2019-12-12 01:27:03 +00:00
|
|
|
if cfg.ExtraConfig.ServiceNodePortRange.Size == 0 {
|
2019-01-12 04:58:27 +00:00
|
|
|
// TODO: Currently no way to specify an empty range (do we need to allow this?)
|
|
|
|
// We should probably allow this for clouds that don't require NodePort to do load-balancing (GCE)
|
|
|
|
// but then that breaks the strict nestedness of ServiceType.
|
|
|
|
// Review post-v1
|
2019-12-12 01:27:03 +00:00
|
|
|
cfg.ExtraConfig.ServiceNodePortRange = kubeoptions.DefaultServiceNodePortRange
|
|
|
|
klog.Infof("Node port range unspecified. Defaulting to %v.", cfg.ExtraConfig.ServiceNodePortRange)
|
2019-01-12 04:58:27 +00:00
|
|
|
}
|
|
|
|
|
2019-12-12 01:27:03 +00:00
|
|
|
if cfg.ExtraConfig.EndpointReconcilerConfig.Interval == 0 {
|
|
|
|
cfg.ExtraConfig.EndpointReconcilerConfig.Interval = DefaultEndpointReconcilerInterval
|
2019-01-12 04:58:27 +00:00
|
|
|
}
|
|
|
|
|
2019-12-12 01:27:03 +00:00
|
|
|
if cfg.ExtraConfig.MasterEndpointReconcileTTL == 0 {
|
|
|
|
cfg.ExtraConfig.MasterEndpointReconcileTTL = DefaultEndpointReconcilerTTL
|
2019-01-12 04:58:27 +00:00
|
|
|
}
|
|
|
|
|
2019-12-12 01:27:03 +00:00
|
|
|
if cfg.ExtraConfig.EndpointReconcilerConfig.Reconciler == nil {
|
|
|
|
cfg.ExtraConfig.EndpointReconcilerConfig.Reconciler = c.createEndpointReconciler()
|
2019-01-12 04:58:27 +00:00
|
|
|
}
|
|
|
|
|
2019-12-12 01:27:03 +00:00
|
|
|
return CompletedConfig{&cfg}
|
2019-01-12 04:58:27 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
// New returns a new instance of Master from the given config.
|
|
|
|
// Certain config fields will be set to a default value if unset.
|
|
|
|
// Certain config fields must be specified, including:
|
|
|
|
// KubeletClientConfig
|
|
|
|
func (c completedConfig) New(delegationTarget genericapiserver.DelegationTarget) (*Master, error) {
|
|
|
|
if reflect.DeepEqual(c.ExtraConfig.KubeletClientConfig, kubeletclient.KubeletClientConfig{}) {
|
|
|
|
return nil, fmt.Errorf("Master.New() called with empty config.KubeletClientConfig")
|
|
|
|
}
|
|
|
|
|
|
|
|
s, err := c.GenericConfig.New("kube-apiserver", delegationTarget)
|
|
|
|
if err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
|
|
|
|
if c.ExtraConfig.EnableLogsSupport {
|
|
|
|
routes.Logs{}.Install(s.Handler.GoRestfulContainer)
|
|
|
|
}
|
|
|
|
|
2020-03-26 21:07:15 +00:00
|
|
|
if utilfeature.DefaultFeatureGate.Enabled(features.ServiceAccountIssuerDiscovery) {
|
|
|
|
// Metadata and keys are expected to only change across restarts at present,
|
|
|
|
// so we just marshal immediately and serve the cached JSON bytes.
|
|
|
|
md, err := serviceaccount.NewOpenIDMetadata(
|
|
|
|
c.ExtraConfig.ServiceAccountIssuerURL,
|
|
|
|
c.ExtraConfig.ServiceAccountJWKSURI,
|
|
|
|
c.GenericConfig.ExternalAddress,
|
|
|
|
c.ExtraConfig.ServiceAccountPublicKeys,
|
|
|
|
)
|
|
|
|
if err != nil {
|
|
|
|
// If there was an error, skip installing the endpoints and log the
|
|
|
|
// error, but continue on. We don't return the error because the
|
|
|
|
// metadata responses require additional, backwards incompatible
|
|
|
|
// validation of command-line options.
|
|
|
|
msg := fmt.Sprintf("Could not construct pre-rendered responses for"+
|
|
|
|
" ServiceAccountIssuerDiscovery endpoints. Endpoints will not be"+
|
|
|
|
" enabled. Error: %v", err)
|
|
|
|
if c.ExtraConfig.ServiceAccountIssuerURL != "" {
|
|
|
|
// The user likely expects this feature to be enabled if issuer URL is
|
|
|
|
// set and the feature gate is enabled. In the future, if there is no
|
|
|
|
// longer a feature gate and issuer URL is not set, the user may not
|
|
|
|
// expect this feature to be enabled. We log the former case as an Error
|
|
|
|
// and the latter case as an Info.
|
|
|
|
klog.Error(msg)
|
|
|
|
} else {
|
|
|
|
klog.Info(msg)
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
routes.NewOpenIDMetadataServer(md.ConfigJSON, md.PublicKeysetJSON).
|
|
|
|
Install(s.Handler.GoRestfulContainer)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2019-01-12 04:58:27 +00:00
|
|
|
m := &Master{
|
2019-12-12 01:27:03 +00:00
|
|
|
GenericAPIServer: s,
|
|
|
|
ClusterAuthenticationInfo: c.ExtraConfig.ClusterAuthenticationInfo,
|
2019-01-12 04:58:27 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
// install legacy rest storage
|
|
|
|
if c.ExtraConfig.APIResourceConfigSource.VersionEnabled(apiv1.SchemeGroupVersion) {
|
|
|
|
legacyRESTStorageProvider := corerest.LegacyRESTStorageProvider{
|
|
|
|
StorageFactory: c.ExtraConfig.StorageFactory,
|
|
|
|
ProxyTransport: c.ExtraConfig.ProxyTransport,
|
|
|
|
KubeletClientConfig: c.ExtraConfig.KubeletClientConfig,
|
|
|
|
EventTTL: c.ExtraConfig.EventTTL,
|
|
|
|
ServiceIPRange: c.ExtraConfig.ServiceIPRange,
|
2019-09-27 21:51:53 +00:00
|
|
|
SecondaryServiceIPRange: c.ExtraConfig.SecondaryServiceIPRange,
|
2019-01-12 04:58:27 +00:00
|
|
|
ServiceNodePortRange: c.ExtraConfig.ServiceNodePortRange,
|
|
|
|
LoopbackClientConfig: c.GenericConfig.LoopbackClientConfig,
|
|
|
|
ServiceAccountIssuer: c.ExtraConfig.ServiceAccountIssuer,
|
2020-08-10 17:43:49 +00:00
|
|
|
ExtendExpiration: c.ExtraConfig.ExtendExpiration,
|
2019-01-12 04:58:27 +00:00
|
|
|
ServiceAccountMaxExpiration: c.ExtraConfig.ServiceAccountMaxExpiration,
|
|
|
|
APIAudiences: c.GenericConfig.Authentication.APIAudiences,
|
|
|
|
}
|
2019-09-27 21:51:53 +00:00
|
|
|
if err := m.InstallLegacyAPI(&c, c.GenericConfig.RESTOptionsGetter, legacyRESTStorageProvider); err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
2019-01-12 04:58:27 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
// The order here is preserved in discovery.
|
|
|
|
// If resources with identical names exist in more than one of these groups (e.g. "deployments.apps"" and "deployments.extensions"),
|
|
|
|
// the order of this list determines which group an unqualified resource name (e.g. "deployments") should prefer.
|
|
|
|
// This priority order is used for local discovery, but it ends up aggregated in `k8s.io/kubernetes/cmd/kube-apiserver/app/aggregator.go
|
|
|
|
// with specific priorities.
|
|
|
|
// TODO: describe the priority all the way down in the RESTStorageProviders and plumb it back through the various discovery
|
|
|
|
// handlers that we have.
|
|
|
|
restStorageProviders := []RESTStorageProvider{
|
|
|
|
authenticationrest.RESTStorageProvider{Authenticator: c.GenericConfig.Authentication.Authenticator, APIAudiences: c.GenericConfig.Authentication.APIAudiences},
|
|
|
|
authorizationrest.RESTStorageProvider{Authorizer: c.GenericConfig.Authorization.Authorizer, RuleResolver: c.GenericConfig.RuleResolver},
|
|
|
|
autoscalingrest.RESTStorageProvider{},
|
|
|
|
batchrest.RESTStorageProvider{},
|
|
|
|
certificatesrest.RESTStorageProvider{},
|
2019-04-07 17:07:55 +00:00
|
|
|
coordinationrest.RESTStorageProvider{},
|
2019-09-27 21:51:53 +00:00
|
|
|
discoveryrest.StorageProvider{},
|
2019-01-12 04:58:27 +00:00
|
|
|
extensionsrest.RESTStorageProvider{},
|
|
|
|
networkingrest.RESTStorageProvider{},
|
2019-04-07 17:07:55 +00:00
|
|
|
noderest.RESTStorageProvider{},
|
2019-01-12 04:58:27 +00:00
|
|
|
policyrest.RESTStorageProvider{},
|
|
|
|
rbacrest.RESTStorageProvider{Authorizer: c.GenericConfig.Authorization.Authorizer},
|
|
|
|
schedulingrest.RESTStorageProvider{},
|
2019-08-30 18:33:25 +00:00
|
|
|
settingsrest.RESTStorageProvider{},
|
2019-01-12 04:58:27 +00:00
|
|
|
storagerest.RESTStorageProvider{},
|
2019-12-12 01:27:03 +00:00
|
|
|
flowcontrolrest.RESTStorageProvider{},
|
2019-01-12 04:58:27 +00:00
|
|
|
// keep apps after extensions so legacy clients resolve the extensions versions of shared resource names.
|
|
|
|
// See https://github.com/kubernetes/kubernetes/issues/42392
|
2020-08-10 17:43:49 +00:00
|
|
|
appsrest.StorageProvider{},
|
2019-01-12 04:58:27 +00:00
|
|
|
admissionregistrationrest.RESTStorageProvider{},
|
2019-08-30 18:33:25 +00:00
|
|
|
eventsrest.RESTStorageProvider{TTL: c.ExtraConfig.EventTTL},
|
2019-01-12 04:58:27 +00:00
|
|
|
}
|
2019-09-27 21:51:53 +00:00
|
|
|
if err := m.InstallAPIs(c.ExtraConfig.APIResourceConfigSource, c.GenericConfig.RESTOptionsGetter, restStorageProviders...); err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
2019-01-12 04:58:27 +00:00
|
|
|
|
2019-08-30 18:33:25 +00:00
|
|
|
if c.ExtraConfig.Tunneler != nil {
|
|
|
|
m.installTunneler(c.ExtraConfig.Tunneler, corev1client.NewForConfigOrDie(c.GenericConfig.LoopbackClientConfig).Nodes())
|
|
|
|
}
|
|
|
|
|
2019-12-12 01:27:03 +00:00
|
|
|
m.GenericAPIServer.AddPostStartHookOrDie("start-cluster-authentication-info-controller", func(hookContext genericapiserver.PostStartHookContext) error {
|
|
|
|
kubeClient, err := kubernetes.NewForConfig(hookContext.LoopbackClientConfig)
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
controller := clusterauthenticationtrust.NewClusterAuthenticationTrustController(m.ClusterAuthenticationInfo, kubeClient)
|
|
|
|
|
|
|
|
// prime values and start listeners
|
|
|
|
if m.ClusterAuthenticationInfo.ClientCA != nil {
|
|
|
|
if notifier, ok := m.ClusterAuthenticationInfo.ClientCA.(dynamiccertificates.Notifier); ok {
|
|
|
|
notifier.AddListener(controller)
|
|
|
|
}
|
|
|
|
if controller, ok := m.ClusterAuthenticationInfo.ClientCA.(dynamiccertificates.ControllerRunner); ok {
|
|
|
|
// runonce to be sure that we have a value.
|
|
|
|
if err := controller.RunOnce(); err != nil {
|
|
|
|
runtime.HandleError(err)
|
|
|
|
}
|
|
|
|
go controller.Run(1, hookContext.StopCh)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if m.ClusterAuthenticationInfo.RequestHeaderCA != nil {
|
|
|
|
if notifier, ok := m.ClusterAuthenticationInfo.RequestHeaderCA.(dynamiccertificates.Notifier); ok {
|
|
|
|
notifier.AddListener(controller)
|
|
|
|
}
|
|
|
|
if controller, ok := m.ClusterAuthenticationInfo.RequestHeaderCA.(dynamiccertificates.ControllerRunner); ok {
|
|
|
|
// runonce to be sure that we have a value.
|
|
|
|
if err := controller.RunOnce(); err != nil {
|
|
|
|
runtime.HandleError(err)
|
|
|
|
}
|
|
|
|
go controller.Run(1, hookContext.StopCh)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
go controller.Run(1, hookContext.StopCh)
|
|
|
|
return nil
|
|
|
|
})
|
2019-04-07 17:07:55 +00:00
|
|
|
|
2019-01-12 04:58:27 +00:00
|
|
|
return m, nil
|
|
|
|
}
|
|
|
|
|
2019-12-12 01:27:03 +00:00
|
|
|
// InstallLegacyAPI will install the legacy APIs for the restStorageProviders if they are enabled.
|
2019-09-27 21:51:53 +00:00
|
|
|
func (m *Master) InstallLegacyAPI(c *completedConfig, restOptionsGetter generic.RESTOptionsGetter, legacyRESTStorageProvider corerest.LegacyRESTStorageProvider) error {
|
2019-01-12 04:58:27 +00:00
|
|
|
legacyRESTStorage, apiGroupInfo, err := legacyRESTStorageProvider.NewLegacyRESTStorage(restOptionsGetter)
|
|
|
|
if err != nil {
|
2020-03-26 21:07:15 +00:00
|
|
|
return fmt.Errorf("error building core storage: %v", err)
|
2019-01-12 04:58:27 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
controllerName := "bootstrap-controller"
|
|
|
|
coreClient := corev1client.NewForConfigOrDie(c.GenericConfig.LoopbackClientConfig)
|
2019-04-07 17:07:55 +00:00
|
|
|
bootstrapController := c.NewBootstrapController(legacyRESTStorage, coreClient, coreClient, coreClient, coreClient.RESTClient())
|
2019-01-12 04:58:27 +00:00
|
|
|
m.GenericAPIServer.AddPostStartHookOrDie(controllerName, bootstrapController.PostStartHook)
|
|
|
|
m.GenericAPIServer.AddPreShutdownHookOrDie(controllerName, bootstrapController.PreShutdownHook)
|
|
|
|
|
|
|
|
if err := m.GenericAPIServer.InstallLegacyAPIGroup(genericapiserver.DefaultLegacyAPIPrefix, &apiGroupInfo); err != nil {
|
2020-03-26 21:07:15 +00:00
|
|
|
return fmt.Errorf("error in registering group versions: %v", err)
|
2019-01-12 04:58:27 +00:00
|
|
|
}
|
2019-09-27 21:51:53 +00:00
|
|
|
return nil
|
2019-01-12 04:58:27 +00:00
|
|
|
}
|
|
|
|
|
2019-08-30 18:33:25 +00:00
|
|
|
func (m *Master) installTunneler(nodeTunneler tunneler.Tunneler, nodeClient corev1client.NodeInterface) {
|
|
|
|
nodeTunneler.Run(nodeAddressProvider{nodeClient}.externalAddresses)
|
2020-03-26 21:07:15 +00:00
|
|
|
err := m.GenericAPIServer.AddHealthChecks(healthz.NamedCheck("SSH Tunnel Check", tunneler.TunnelSyncHealthChecker(nodeTunneler)))
|
|
|
|
if err != nil {
|
|
|
|
klog.Errorf("Failed adding ssh tunnel health check %v\n", err)
|
|
|
|
}
|
2019-08-30 18:33:25 +00:00
|
|
|
}
|
|
|
|
|
2019-01-12 04:58:27 +00:00
|
|
|
// RESTStorageProvider is a factory type for REST storage.
|
|
|
|
type RESTStorageProvider interface {
|
|
|
|
GroupName() string
|
2019-09-27 21:51:53 +00:00
|
|
|
NewRESTStorage(apiResourceConfigSource serverstorage.APIResourceConfigSource, restOptionsGetter generic.RESTOptionsGetter) (genericapiserver.APIGroupInfo, bool, error)
|
2019-01-12 04:58:27 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
// InstallAPIs will install the APIs for the restStorageProviders if they are enabled.
|
2019-09-27 21:51:53 +00:00
|
|
|
func (m *Master) InstallAPIs(apiResourceConfigSource serverstorage.APIResourceConfigSource, restOptionsGetter generic.RESTOptionsGetter, restStorageProviders ...RESTStorageProvider) error {
|
2019-04-07 17:07:55 +00:00
|
|
|
apiGroupsInfo := []*genericapiserver.APIGroupInfo{}
|
2019-01-12 04:58:27 +00:00
|
|
|
|
|
|
|
for _, restStorageBuilder := range restStorageProviders {
|
|
|
|
groupName := restStorageBuilder.GroupName()
|
|
|
|
if !apiResourceConfigSource.AnyVersionForGroupEnabled(groupName) {
|
|
|
|
klog.V(1).Infof("Skipping disabled API group %q.", groupName)
|
|
|
|
continue
|
|
|
|
}
|
2019-09-27 21:51:53 +00:00
|
|
|
apiGroupInfo, enabled, err := restStorageBuilder.NewRESTStorage(apiResourceConfigSource, restOptionsGetter)
|
|
|
|
if err != nil {
|
2019-12-12 01:27:03 +00:00
|
|
|
return fmt.Errorf("problem initializing API group %q : %v", groupName, err)
|
2019-09-27 21:51:53 +00:00
|
|
|
}
|
2019-01-12 04:58:27 +00:00
|
|
|
if !enabled {
|
2019-09-27 21:51:53 +00:00
|
|
|
klog.Warningf("API group %q is not enabled, skipping.", groupName)
|
2019-01-12 04:58:27 +00:00
|
|
|
continue
|
|
|
|
}
|
|
|
|
klog.V(1).Infof("Enabling API group %q.", groupName)
|
|
|
|
|
|
|
|
if postHookProvider, ok := restStorageBuilder.(genericapiserver.PostStartHookProvider); ok {
|
|
|
|
name, hook, err := postHookProvider.PostStartHook()
|
|
|
|
if err != nil {
|
|
|
|
klog.Fatalf("Error building PostStartHook: %v", err)
|
|
|
|
}
|
|
|
|
m.GenericAPIServer.AddPostStartHookOrDie(name, hook)
|
|
|
|
}
|
|
|
|
|
2019-04-07 17:07:55 +00:00
|
|
|
apiGroupsInfo = append(apiGroupsInfo, &apiGroupInfo)
|
2019-01-12 04:58:27 +00:00
|
|
|
}
|
|
|
|
|
2019-04-07 17:07:55 +00:00
|
|
|
if err := m.GenericAPIServer.InstallAPIGroups(apiGroupsInfo...); err != nil {
|
2020-03-26 21:07:15 +00:00
|
|
|
return fmt.Errorf("error in registering group versions: %v", err)
|
2019-01-12 04:58:27 +00:00
|
|
|
}
|
2019-09-27 21:51:53 +00:00
|
|
|
return nil
|
2019-01-12 04:58:27 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
type nodeAddressProvider struct {
|
|
|
|
nodeClient corev1client.NodeInterface
|
|
|
|
}
|
|
|
|
|
|
|
|
func (n nodeAddressProvider) externalAddresses() ([]string, error) {
|
|
|
|
preferredAddressTypes := []apiv1.NodeAddressType{
|
|
|
|
apiv1.NodeExternalIP,
|
|
|
|
}
|
2020-03-26 21:07:15 +00:00
|
|
|
nodes, err := n.nodeClient.List(context.TODO(), metav1.ListOptions{})
|
2019-01-12 04:58:27 +00:00
|
|
|
if err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
2019-04-07 17:07:55 +00:00
|
|
|
var matchErr error
|
2019-01-12 04:58:27 +00:00
|
|
|
addrs := []string{}
|
|
|
|
for ix := range nodes.Items {
|
|
|
|
node := &nodes.Items[ix]
|
|
|
|
addr, err := nodeutil.GetPreferredNodeAddress(node, preferredAddressTypes)
|
|
|
|
if err != nil {
|
2019-04-07 17:07:55 +00:00
|
|
|
if _, ok := err.(*nodeutil.NoMatchError); ok {
|
|
|
|
matchErr = err
|
|
|
|
continue
|
|
|
|
}
|
2019-01-12 04:58:27 +00:00
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
addrs = append(addrs, addr)
|
|
|
|
}
|
2019-04-07 17:07:55 +00:00
|
|
|
if len(addrs) == 0 && matchErr != nil {
|
|
|
|
// We only return an error if we have items.
|
|
|
|
// Currently we return empty list/no error if Items is empty.
|
|
|
|
// We do this for backward compatibility reasons.
|
|
|
|
return nil, matchErr
|
|
|
|
}
|
2019-01-12 04:58:27 +00:00
|
|
|
return addrs, nil
|
|
|
|
}
|
|
|
|
|
2019-12-12 01:27:03 +00:00
|
|
|
// DefaultAPIResourceConfigSource returns default configuration for an APIResource.
|
2019-01-12 04:58:27 +00:00
|
|
|
func DefaultAPIResourceConfigSource() *serverstorage.ResourceConfig {
|
|
|
|
ret := serverstorage.NewResourceConfig()
|
|
|
|
// NOTE: GroupVersions listed here will be enabled by default. Don't put alpha versions in the list.
|
|
|
|
ret.EnableVersions(
|
2019-09-27 21:51:53 +00:00
|
|
|
admissionregistrationv1.SchemeGroupVersion,
|
2019-01-12 04:58:27 +00:00
|
|
|
admissionregistrationv1beta1.SchemeGroupVersion,
|
|
|
|
apiv1.SchemeGroupVersion,
|
|
|
|
appsv1.SchemeGroupVersion,
|
|
|
|
authenticationv1.SchemeGroupVersion,
|
2019-08-30 18:33:25 +00:00
|
|
|
authenticationv1beta1.SchemeGroupVersion,
|
2019-01-12 04:58:27 +00:00
|
|
|
authorizationapiv1.SchemeGroupVersion,
|
2019-04-10 18:09:50 +00:00
|
|
|
authorizationapiv1beta1.SchemeGroupVersion,
|
2019-01-12 04:58:27 +00:00
|
|
|
autoscalingapiv1.SchemeGroupVersion,
|
2019-04-07 17:07:55 +00:00
|
|
|
autoscalingapiv2beta1.SchemeGroupVersion,
|
2019-01-12 04:58:27 +00:00
|
|
|
autoscalingapiv2beta2.SchemeGroupVersion,
|
|
|
|
batchapiv1.SchemeGroupVersion,
|
|
|
|
batchapiv1beta1.SchemeGroupVersion,
|
2020-08-10 17:43:49 +00:00
|
|
|
certificatesapiv1.SchemeGroupVersion,
|
2019-01-12 04:58:27 +00:00
|
|
|
certificatesapiv1beta1.SchemeGroupVersion,
|
2019-04-07 17:07:55 +00:00
|
|
|
coordinationapiv1.SchemeGroupVersion,
|
|
|
|
coordinationapiv1beta1.SchemeGroupVersion,
|
2019-12-12 01:27:03 +00:00
|
|
|
discoveryv1beta1.SchemeGroupVersion,
|
2020-08-10 17:43:49 +00:00
|
|
|
eventsv1.SchemeGroupVersion,
|
2019-08-30 18:33:25 +00:00
|
|
|
eventsv1beta1.SchemeGroupVersion,
|
2019-01-12 04:58:27 +00:00
|
|
|
extensionsapiv1beta1.SchemeGroupVersion,
|
|
|
|
networkingapiv1.SchemeGroupVersion,
|
2019-04-07 17:07:55 +00:00
|
|
|
networkingapiv1beta1.SchemeGroupVersion,
|
|
|
|
nodev1beta1.SchemeGroupVersion,
|
2019-01-12 04:58:27 +00:00
|
|
|
policyapiv1beta1.SchemeGroupVersion,
|
|
|
|
rbacv1.SchemeGroupVersion,
|
|
|
|
rbacv1beta1.SchemeGroupVersion,
|
|
|
|
storageapiv1.SchemeGroupVersion,
|
|
|
|
storageapiv1beta1.SchemeGroupVersion,
|
|
|
|
schedulingapiv1beta1.SchemeGroupVersion,
|
2019-04-07 17:07:55 +00:00
|
|
|
schedulingapiv1.SchemeGroupVersion,
|
|
|
|
)
|
|
|
|
// enable non-deprecated beta resources in extensions/v1beta1 explicitly so we have a full list of what's possible to serve
|
|
|
|
ret.EnableResources(
|
|
|
|
extensionsapiv1beta1.SchemeGroupVersion.WithResource("ingresses"),
|
|
|
|
)
|
2019-01-12 04:58:27 +00:00
|
|
|
// disable alpha versions explicitly so we have a full list of what's possible to serve
|
|
|
|
ret.DisableVersions(
|
|
|
|
batchapiv2alpha1.SchemeGroupVersion,
|
2019-04-07 17:07:55 +00:00
|
|
|
nodev1alpha1.SchemeGroupVersion,
|
2019-08-30 18:33:25 +00:00
|
|
|
rbacv1alpha1.SchemeGroupVersion,
|
|
|
|
schedulingv1alpha1.SchemeGroupVersion,
|
|
|
|
settingsv1alpha1.SchemeGroupVersion,
|
|
|
|
storageapiv1alpha1.SchemeGroupVersion,
|
2019-12-12 01:27:03 +00:00
|
|
|
flowcontrolv1alpha1.SchemeGroupVersion,
|
2019-01-12 04:58:27 +00:00
|
|
|
)
|
|
|
|
|
|
|
|
return ret
|
|
|
|
}
|