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Write marshalled kubeletconfig object to init-config-dir

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This commit is contained in:
xiangpengzhao 2017-11-19 23:17:07 +08:00
parent 5322cc5e02
commit 8565ee89c5
2 changed files with 21 additions and 0 deletions
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8
cmd/kubeadm/app/constants/constants.go
View File

@ -155,6 +155,14 @@ const (
// after https://github.com/kubernetes/kubernetes/pull/53833 being merged.
KubeletBaseConfigurationConfigMapKey = "kubelet"
// KubeletBaseConfigurationDir specifies the directory on the node where stores the initial remote configuration of kubelet
KubeletBaseConfigurationDir = "/var/lib/kubelet/config/init"
// KubeletBaseConfigurationFile specifies the file name on the node which stores initial remote configuration of kubelet
// TODO: Use the constant ("kubelet.config.k8s.io") defined in pkg/kubelet/kubeletconfig/util/keys/keys.go
// after https://github.com/kubernetes/kubernetes/pull/53833 being merged.
KubeletBaseConfigurationFile = "kubelet"
// MinExternalEtcdVersion indicates minimum external etcd version which kubeadm supports
MinExternalEtcdVersion = "3.0.14"

13
cmd/kubeadm/app/phases/kubelet/kubelet.go
View File

@ -19,6 +19,10 @@ package kubelet
import (
"encoding/json"
"fmt"
"io/ioutil"
"path/filepath"
"github.com/ghodss/yaml"
"k8s.io/api/core/v1"
rbac "k8s.io/api/rbac/v1"
@ -92,6 +96,15 @@ func UpdateNodeWithConfigMap(client clientset.Interface, nodeName string) error
return false, nil
}
baseCongfig, err := yaml.Marshal(kubeletCfg.Data[kubeadmconstants.KubeletBaseConfigurationConfigMapKey])
if err != nil {
return false, err
}
baseCongfigFile := filepath.Join(kubeadmconstants.KubeletBaseConfigurationDir, kubeadmconstants.KubeletBaseConfigurationFile)
if err := ioutil.WriteFile(baseCongfigFile, baseCongfig, 0644); err != nil {
return false, fmt.Errorf("failed to write initial remote configuration of kubelet into file %q for node %s: %v", baseCongfigFile, nodeName, err)
}
node.Spec.ConfigSource = &v1.NodeConfigSource{
ConfigMapRef: &v1.ObjectReference{
Name: kubeadmconstants.KubeletBaseConfigurationConfigMap,