- Conflicting issuers between JWT authenticators and service account config are now detected and fail on API server startup.  Previously such a config would run but would be inconsistently effective depending on the credential. ([#123561](https://github.com/kubernetes/kubernetes/pull/123561), [@enj](https://github.com/enj)) [SIG API Machinery and Auth]

*~
\#*\#
.\#*

# Vim-related files
[._]*.s[a-w][a-z]
[._]s[a-w][a-z]
*.un~
Session.vim
.netrwhist

# cscope-related files
cscope.*

# Go test binaries
*.test
/hack/.test-cmd-auth

# JUnit test output from ginkgo e2e tests
/junit*.xml

# Mercurial files
**/.hg
**/.hg*

# Vagrant
.vagrant
network_closure.sh

# Local cluster env variables
/cluster/env.sh

MINIO_IDENTITY_PLUGIN_AUTH_TOKEN    (string)    authorization token for plugin hook endpoint
MINIO_IDENTITY_PLUGIN_ROLE_POLICY*  (string)    policies to apply for plugin authorized users
MINIO_IDENTITY_PLUGIN_ROLE_ID       (string)    unique ID to generate the ARN
MINIO_IDENTITY_PLUGIN_COMMENT       (sentence)  optionally add a comment to this setting
```

If provided, the auth token parameter is sent as an authorization header.

- Added apiserver_envelope_encryption_kms_operations_latency_seconds metric to measure the KMSv2 grpc calls latency. ([#115649](https://github.com/kubernetes/kubernetes/pull/115649), [@aramase](https://github.com/aramase)) [SIG API Machinery, Auth and Testing]

 * for (Challenge challenge : response.challenges()) {
 *   // If this is preemptive auth, use a preemptive credential.
 *   if (challenge.scheme().equalsIgnoreCase("OkHttp-Preemptive")) {
 *     return response.request().newBuilder()
 *         .header("Proxy-Authorization", "secret")
 *         .build();
 *   }
 * }
 * return null; // Didn't find a preemptive auth scheme.
 * ```
 *
 * ## Reactive Authentication
 *

    "PATHEXT",
)


val credentialsKeywords = listOf(
    "api_key",
    "access_key",
    "apikey",
    "accesskey",
    "password",
    "token",
    "credential",
    "auth"
)


fun Test.filterEnvironmentVariables() {
    environment = makePropagatedEnvironment()
    environment.forEach { (key, _) ->
        if (credentialsKeywords.any { key.contains(it, true) }) {

      "RequestHeadersEnd", "ResponseHeadersStart", "ResponseHeadersEnd", "ResponseBodyStart",
      "ResponseBodyEnd", "ConnectionReleased", "CallEnd", "RequestFailed",
    )
  }

  /**
   * Auth requires follow-ups. Unlike redirects, the auth follow-up also has a request body. This
   * test makes a single call with two duplex requests!
   */
  @Test
  fun duplexWithAuthChallenge() {
    enableProtocol(Protocol.HTTP_2)

</AssumeRoleWithClientGrantsResponse>
```

## Using ClientGrants API

```
export MINIO_ROOT_USER=minio
export MINIO_ROOT_PASSWORD=minio123
export MINIO_IDENTITY_OPENID_CONFIG_URL=http://localhost:8080/auth/realms/demo/.well-known/openid-configuration
export MINIO_IDENTITY_OPENID_CLIENT_ID="843351d4-1080-11ea-aa20-271ecba3924a"
minio server /mnt/export
```

Testing with an example

# Installing pip packages
RUN pip install --upgrade setuptools; \
    pip install altgraph appdirs cachetools certifi cffi chardet colorama \
    cryptography cycler Cython decorator google-api-python-client \
    google-auth google-auth-httplib2 grpcio httplib2 idna ipython-genutils \
    kiwisolver macholib matplotlib nose numpy packaging pandas pickleshare pip \
    prompt-toolkit protobuf psutil pyasn1 pyasn1-modules pycparser Pygments \

  }

  // Digest auth is currently unsupported. Test that digest requests should fail reasonably.
  // http://code.google.com/p/android/issues/detail?id=11140
  @Test
  fun digestAuthentication() {
    val calls =
      authCallsForHeader(
        "WWW-Authenticate: Digest " +
          "realm=\"******@****.***\", qop=\"auth,auth-int\", " +