26c9965a97
During the control plane joins, sometimes the control plane returns an expected error when trying to download the `kubeadm-config` ConfigMap. This is a workaround for this issue until the root cause is completely identified and fixed. Ideally, this commit should be reverted in the near future.
84 lines
3.0 KiB
Go
84 lines
3.0 KiB
Go
/*
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Copyright 2018 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 componentconfigs
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import (
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"github.com/pkg/errors"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/util/version"
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clientset "k8s.io/client-go/kubernetes"
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kubeadmconstants "k8s.io/kubernetes/cmd/kubeadm/app/constants"
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"k8s.io/kubernetes/cmd/kubeadm/app/util/apiclient"
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kubeletconfig "k8s.io/kubernetes/pkg/kubelet/apis/config"
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kubeproxyconfig "k8s.io/kubernetes/pkg/proxy/apis/config"
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)
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// GetFromKubeletConfigMap returns the pointer to the ComponentConfig API object read from the kubelet-config-version
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// ConfigMap map stored in the cluster
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func GetFromKubeletConfigMap(client clientset.Interface, version *version.Version) (runtime.Object, error) {
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// Read the ConfigMap from the cluster based on what version the kubelet is
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configMapName := kubeadmconstants.GetKubeletConfigMapName(version)
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kubeletCfg, err := apiclient.GetConfigMapWithRetry(client, metav1.NamespaceSystem, configMapName)
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if err != nil {
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return nil, err
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}
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kubeletConfigData, ok := kubeletCfg.Data[kubeadmconstants.KubeletBaseConfigurationConfigMapKey]
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if !ok {
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return nil, errors.Errorf("unexpected error when reading %s ConfigMap: %s key value pair missing",
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configMapName, kubeadmconstants.KubeletBaseConfigurationConfigMapKey)
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}
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// Decodes the kubeletConfigData into the internal component config
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obj := &kubeletconfig.KubeletConfiguration{}
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err = unmarshalObject(obj, []byte(kubeletConfigData))
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if err != nil {
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return nil, err
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}
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return obj, nil
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}
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// GetFromKubeProxyConfigMap returns the pointer to the ComponentConfig API object read from the kube-proxy
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// ConfigMap map stored in the cluster
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func GetFromKubeProxyConfigMap(client clientset.Interface, version *version.Version) (runtime.Object, error) {
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// Read the ConfigMap from the cluster
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kubeproxyCfg, err := apiclient.GetConfigMapWithRetry(client, metav1.NamespaceSystem, kubeadmconstants.KubeProxyConfigMap)
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if err != nil {
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return nil, err
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}
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kubeproxyConfigData, ok := kubeproxyCfg.Data[kubeadmconstants.KubeProxyConfigMapKey]
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if !ok {
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return nil, errors.Errorf("unexpected error when reading %s ConfigMap: %s key value pair missing",
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kubeadmconstants.KubeProxyConfigMap, kubeadmconstants.KubeProxyConfigMapKey)
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}
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// Decodes the Config map dat into the internal component config
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obj := &kubeproxyconfig.KubeProxyConfiguration{}
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err = unmarshalObject(obj, []byte(kubeproxyConfigData))
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if err != nil {
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return nil, err
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}
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return obj, nil
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}
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