String SMB_ROLE_FROM_FILE = "smb.role.from.file";

    /** The key of the configuration. e.g. 1,2,4:2,5:1 */
    String SMB_AVAILABLE_SID_TYPES = "smb.available.sid.types";

    /** The key of the configuration. e.g. true */
    String FILE_ROLE_FROM_FILE = "file.role.from.file";

    /** The key of the configuration. e.g. true */
    String FTP_ROLE_FROM_FILE = "ftp.role.from.file";

// mode.
message DownwardAPIProjection {
  // Items is a list of DownwardAPIVolume file
  // +optional
  repeated DownwardAPIVolumeFile items = 1;
}

// DownwardAPIVolumeFile represents information to create the file containing the pod field
message DownwardAPIVolumeFile {

public void create() throws java.io.IOException; public java.io.File newFile(String) throws java.io.IOException; public java.io.File newFile() throws java.io.IOException; public java.io.File newFolder(String) throws java.io.IOException; public transient java.io.File newFolder(String[]) throws java.io.IOException; public java.io.File newFolder() throws java.io.IOException; private static java.io.File createTemporaryFolde(java.io.File) throws java.io.IOException; private static java.io.File create...

* Default values differ between the Kubelet's componentconfig (config file) API and the Kubelet's command line. Be sure to review the default values when migrating to using a config file. For example, the authz mode is set to "AlwaysAllow" if you rely on the command line, but defaults to the more secure "Webhook" mode if you load config from a file. ([#59666](https://github.com/kubernetes/kubernetes/pull/59666), [@mtaufen](https://github.com/mtaufen))

* "kubeadm init" now writes a structured and versioned kubelet ComponentConfiguration file to `/var/lib/kubelet/config.yaml` and an environment file with runtime flags (you can source this file in the systemd kubelet dropin) to `/var/lib/kubelet/kubeadm-flags.env`. ([#63887](https://github.com/kubernetes/kubernetes/pull/63887), [@luxas](https://github.com/luxas))

 
#### Configuration file changes:

#### kube-apiserver:

- kube-proxy: a configuration file specified via `--config` is now loaded with strict deserialization, which fails if the config file contains duplicate or unknown fields. This protects against accidentally running with config files that are malformed, mis-indented, or have typos in field names, and getting unexpected behavior. ([#82927](https://github.com/kubernetes/kubernetes/pull/82927),...

*   Relative paths in the Kubelet's local config files (`--init-config-dir`) will now be resolved relative to the location of the containing files. ([#55648](https://github.com/kubernetes/kubernetes/pull/55648),[ @mtaufen](https://github.com/mtaufen))

  * The `--audit-policy-file` option is required if the `AdvancedAuditing` feature is not explicitly turned off (`--feature-gates=AdvancedAuditing=false`) on the API server.
  * The audit log file defaults to JSON encoding when using the advanced auditing feature gate.
  * An audit policy file without either an `apiVersion` or a `kind` field may be treated as invalid.
  * The webhook and log file now output the `v1beta1` event format.

    - the secret is a serialized version of `azure.json` file with key cloud-config. And the secret name is azure-cloud-provider.
    - A new option cloudConfigType has been added to the cloud-config file. Supported values are: `file`, `secret` and `merge` (`merge` is the default value).