- Communication between the etcd server and kube-apiserver on master is now overridden to use HTTPS instead of HTTP when mTLS is enabled in GCE. ([#74690](https://github.com/kubernetes/kubernetes/pull/74690), [@wenjiaswe](https://github.com/wenjiaswe))

### GCP

- [stackdriver addon] Bumped prometheus-to-sd to v0.5.0 to pick up security fixes.

    assertInvalid("http://../", "Invalid URL host: \"..\"")
  }

  @Test
  fun hostnameTelephone() {
    // https://www.gosecure.net/blog/2020/10/27/weakness-in-java-tls-host-verification/

    // Map the single character telephone symbol (℡) to the string "tel".
    assertThat(parse("http://\u2121").host).isEqualTo("tel")

    // Map the Kelvin symbol (K) to the string "k".

		HTTPStatusCode: http.StatusNotFound,
	},
	ErrInsecureClientRequest: {
		Code:           "XMinioInsecureClientRequest",
		Description:    "Cannot respond to plain-text request from TLS-encrypted server",
		HTTPStatusCode: http.StatusBadRequest,
	},
	ErrRequestTimedout: {
		Code:           "RequestTimeout",

* Fix a race condition in which kubeadm only waits for the kubelets kubeconfig file when it has performed the TLS bootstrap, but wasn't waiting for certificates to be present in the filesystem ([#72030](https://github.com/kubernetes/kubernetes/pull/72030), [@ereslibre](https://github.com/ereslibre))

	public final fun authenticator ()Lokhttp3/Authenticator;
	public final fun cache ()Lokhttp3/Cache;
	public final fun callTimeoutMillis ()I
	public final fun certificateChainCleaner ()Lokhttp3/internal/tls/CertificateChainCleaner;
	public final fun certificatePinner ()Lokhttp3/CertificatePinner;
	public final fun connectTimeoutMillis ()I
	public final fun connectionPool ()Lokhttp3/ConnectionPool;

- Added support for max attach limit for Cinder ([#72980](https://github.com/kubernetes/kubernetes/pull/72980), [@gnufied](https://github.com/gnufied))
- Enabled mTLS encryption between etcd and kube-apiserver in GCE ([#70144](https://github.com/kubernetes/kubernetes/pull/70144), [@wenjiaswe](https://github.com/wenjiaswe))

- github.com/markbates/pkger: [v0.17.1](https://github.com/markbates/pkger/tree/v0.17.1)
- github.com/marten-seemann/qtls: [v0.2.3](https://github.com/marten-seemann/qtls/tree/v0.2.3)
- github.com/mholt/certmagic: [6a42ef9](https://github.com/mholt/certmagic/tree/6a42ef9)
- github.com/naoina/go-stringutil: [v0.1.0](https://github.com/naoina/go-stringutil/tree/v0.1.0)

        .build()
    val response = get(url)
    assertThat(response.body.string()).isEqualTo(entryBody)
    assertThat(response.header("Content-Length")).isEqualTo("3")
  }

  /** The TLS version is present in OkHttp 3.0 and beyond.  */
  @Test
  fun testGoldenCacheHttpsResponseOkHttp30() {
    val url = server.url("/")
    val urlKey = key(url)
    val prefix = get().getPrefix()

  Beta feature in 1.27. ([#114445](https://github.com/kubernetes/kubernetes/pull/114445), [@mengjiao-liu](https://github.com/mengjiao-liu))
- `Secret` of `kubernetes.io/tls` type now verifies that the private key matches the cert ([#113581](https://github.com/kubernetes/kubernetes/pull/113581), [@aimuz](https://github.com/aimuz))

	baseTestCases := []TestSuiteCommon{
		// Init and run test on ErasureSD backend with signature v4.
		{serverType: "ErasureSD", signer: signerV4},
		// Init and run test on ErasureSD backend, with tls enabled.
		{serverType: "ErasureSD", signer: signerV4, secure: true},
		// Init and run test on Erasure backend.
		{serverType: "Erasure", signer: signerV4},
		// Init and run test on ErasureSet backend.