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https://github.com/optim-enterprises-bv/kubernetes.git
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4bd692a3bf
Default Go HTTP transport does not allow to use CIDR notations in NO_PROXY variables, thus for certain HTTP calls that is done inside kubeadm user needs to put explicitly multiple IP addresses. For most of calls done via API machinery it is get solved by setting different Proxy resolver. This patch allows to use CIDR notations in NO_PROXY variables for currently all other HTTP calls that is made inside kubeadm.
51 lines
1.5 KiB
Go
51 lines
1.5 KiB
Go
/*
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Copyright 2016 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 https
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import (
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"io/ioutil"
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"net/http"
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netutil "k8s.io/apimachinery/pkg/util/net"
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"k8s.io/client-go/tools/clientcmd"
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clientcmdapi "k8s.io/client-go/tools/clientcmd/api"
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"k8s.io/kubernetes/cmd/kubeadm/app/discovery/file"
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)
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// RetrieveValidatedClusterInfo connects to the API Server and makes sure it can talk
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// securely to the API Server using the provided CA cert and
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// optionally refreshes the cluster-info information from the cluster-info ConfigMap
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func RetrieveValidatedClusterInfo(httpsURL string) (*clientcmdapi.Cluster, error) {
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client := &http.Client{Transport: netutil.SetOldTransportDefaults(&http.Transport{})}
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response, err := client.Get(httpsURL)
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if err != nil {
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return nil, err
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}
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defer response.Body.Close()
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kubeconfig, err := ioutil.ReadAll(response.Body)
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if err != nil {
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return nil, err
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}
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clusterinfo, err := clientcmd.Load(kubeconfig)
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if err != nil {
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return nil, err
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}
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return file.ValidateClusterInfo(clusterinfo)
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}
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