mirror of https://github.com/k3s-io/k3s
83 lines
3.0 KiB
Go
83 lines
3.0 KiB
Go
/*
|
|
Copyright 2018 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 componentconfigs
|
|
|
|
import (
|
|
"github.com/pkg/errors"
|
|
|
|
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
|
"k8s.io/apimachinery/pkg/runtime"
|
|
"k8s.io/apimachinery/pkg/util/version"
|
|
clientset "k8s.io/client-go/kubernetes"
|
|
kubeadmconstants "k8s.io/kubernetes/cmd/kubeadm/app/constants"
|
|
kubeletconfig "k8s.io/kubernetes/pkg/kubelet/apis/config"
|
|
kubeproxyconfig "k8s.io/kubernetes/pkg/proxy/apis/config"
|
|
)
|
|
|
|
// GetFromKubeletConfigMap returns the pointer to the ComponentConfig API object read from the kubelet-config-version
|
|
// ConfigMap map stored in the cluster
|
|
func GetFromKubeletConfigMap(client clientset.Interface, version *version.Version) (runtime.Object, error) {
|
|
|
|
// Read the ConfigMap from the cluster based on what version the kubelet is
|
|
configMapName := kubeadmconstants.GetKubeletConfigMapName(version)
|
|
kubeletCfg, err := client.CoreV1().ConfigMaps(metav1.NamespaceSystem).Get(configMapName, metav1.GetOptions{})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
kubeletConfigData, ok := kubeletCfg.Data[kubeadmconstants.KubeletBaseConfigurationConfigMapKey]
|
|
if !ok {
|
|
return nil, errors.Errorf("unexpected error when reading %s ConfigMap: %s key value pair missing",
|
|
configMapName, kubeadmconstants.KubeletBaseConfigurationConfigMapKey)
|
|
}
|
|
|
|
// Decodes the kubeletConfigData into the internal component config
|
|
obj := &kubeletconfig.KubeletConfiguration{}
|
|
err = unmarshalObject(obj, []byte(kubeletConfigData))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return obj, nil
|
|
}
|
|
|
|
// GetFromKubeProxyConfigMap returns the pointer to the ComponentConfig API object read from the kube-proxy
|
|
// ConfigMap map stored in the cluster
|
|
func GetFromKubeProxyConfigMap(client clientset.Interface, version *version.Version) (runtime.Object, error) {
|
|
|
|
// Read the ConfigMap from the cluster
|
|
kubeproxyCfg, err := client.CoreV1().ConfigMaps(metav1.NamespaceSystem).Get(kubeadmconstants.KubeProxyConfigMap, metav1.GetOptions{})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
kubeproxyConfigData, ok := kubeproxyCfg.Data[kubeadmconstants.KubeProxyConfigMapKey]
|
|
if !ok {
|
|
return nil, errors.Errorf("unexpected error when reading %s ConfigMap: %s key value pair missing",
|
|
kubeadmconstants.KubeProxyConfigMap, kubeadmconstants.KubeProxyConfigMapKey)
|
|
}
|
|
|
|
// Decodes the Config map dat into the internal component config
|
|
obj := &kubeproxyconfig.KubeProxyConfiguration{}
|
|
err = unmarshalObject(obj, []byte(kubeproxyConfigData))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return obj, nil
|
|
}
|