MetricRotationInterval = env.Register("METRIC_ROTATION_INTERVAL", 0*time.Second,
		"Metric scope rotation interval, set to 0 to disable the metric scope rotation").Get()
	MetricGracefulDeletionInterval = env.Register("METRIC_GRACEFUL_DELETION_INTERVAL", 5*time.Minute,
		"Metric expiry graceful deletion interval. No-op if METRIC_ROTATION_INTERVAL is disabled.").Get()

	// kubeletReadOnlyPort specifies the default insecure http server port
	// 0 will disable insecure http server.
	kubeletReadOnlyPort int32 = 0

	// kubeletRotateCertificates specifies the default value to enable certificate rotation
	kubeletRotateCertificates = true

	// kubeletAuthenticationAnonymousEnabled specifies the default value to disable anonymous access
	kubeletAuthenticationAnonymousEnabled = false

//	OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
//	WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
//	ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE
//	LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
//	CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
//	SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR

		// At high QPS (>250 QPS) we will log the same amount as we will log due to exceeding buffer size, rather
		// than the flush interval.
		"--file-flush-interval-msec", "1000",
		"--disable-hot-restart", // We don't use it, so disable it to simplify Envoy's logic
		"--allow-unknown-static-fields",
	}

	startupArgs = append(startupArgs, e.extraArgs...)

	if overrideFname != "" {

	want := []string{
		"-c", "test.json",
		"--drain-time-s", "45",
		"--drain-strategy", "immediate",
		"--local-address-ip-version", "v4",
		"--file-flush-interval-msec", "1000",
		"--disable-hot-restart",
		"--allow-unknown-static-fields",
		"-l", "trace",
		"--component-log-level", "misc:error",
		"--config-yaml", `{"key":"value"}`,
		"--concurrency", "8",
	}
	if !reflect.DeepEqual(got, want) {

			Client:    l.client.CoordinationV1(),
			// Note: Key is NOT used. This is not implemented in the library for Lease nor needed, since this is already per-revision.
			// See below, where we disable KeyComparison
			LockConfig: k8sresourcelock.ResourceLockConfig{
				Identity: l.name,
			},
		}
	}

	config := k8sleaderelection.LeaderElectionConfig{
		Lock:          lock,
		LeaseDuration: l.ttl,

// There is only one additional file: calling SetCrashOutput again overrides
// any earlier call.
// SetCrashOutput duplicates f's file descriptor, so the caller may safely
// close f as soon as SetCrashOutput returns.
// To disable this additional crash output, call SetCrashOutput(nil).
// If called concurrently with a crash, some in-progress output may be written
// to the old file even after an overriding SetCrashOutput returns.

		TagsMd: cbor.TagsAllowed,

		// Decode type 0 (unsigned integer) as int64.
		// TODO: IntDecConvertSignedOrFail errors on overflow, JSON will try to fall back to float64.
		IntDec: cbor.IntDecConvertSignedOrFail,

		// Disable producing map[cbor.ByteString]interface{}, which is not acceptable for
		// decodes into interface{}.
		MapKeyByteString: cbor.MapKeyByteStringForbidden,

	if err != nil {
		return cfg, err
	}

	cfg.Enabled = true
	cfg.DialTimeout = defaultDialTimeout
	cfg.DialKeepAliveTime = defaultDialKeepAlive
	// Disable etcd client SDK logging, etcd client
	// incorrectly starts logging in unexpected data
	// format.
	cfg.LogConfig = &zap.Config{
		Level:    zap.NewAtomicLevelAt(zap.FatalLevel),
		Encoding: "console",
	}

// syncTimer returns c as an unsafe.Pointer, for passing to newTimer.
// If the GODEBUG asynctimerchan has disabled the async timer chan
// code, then syncTimer always returns nil, to disable the special
// channel code paths in the runtime.
func syncTimer(c chan Time) unsafe.Pointer {
	// If asynctimerchan=1, we don't even tell the runtime
	// about channel timers, so that we get the pre-Go 1.23 code paths.