}

func copyCerts(t *testing.T, dir string) {
	if err := os.MkdirAll(dir, 0o755); err != nil {
		t.Fatal(err)
	}
	if err := file.Copy(filepath.Join(env.IstioSrc, "./tests/testdata/certs/pilot/cert-chain.pem"), dir, "cert-chain.pem"); err != nil {
		t.Fatal(err)
	}
	if err := file.Copy(filepath.Join(env.IstioSrc, "./tests/testdata/certs/pilot/key.pem"), dir, "key.pem"); err != nil {
		t.Fatal(err)
	}

		})
	}
}

func alreadyHit(cur instance, chain []instance) bool {
	for _, cc := range chain {
		if cur == cc {
			return true
		}
	}
	return false
}

func checkCycles(t *testing.T, start instance, cases []instance, chain []instance) {
	if alreadyHit(start, chain) {
		t.Fatalf("cycle on leader election: cur %v, chain %v", start, chain)
	}
	for _, nextHop := range cases {

  // CHECK:       [[pred:%.*]] = tfrt_fallback_async.predicate
  // CHECK-NEXT:  tfrt.while [[pred]] @"[[while_func_prefix:.*]]/tfrt_body_1"
  // CHECK-SAME:  (!tfrt.chain, !tfrt_fallback.tf_tensor) -> (!tfrt.chain, !tfrt_fallback.tf_tensor)
  // CHECK-NOT:   func.call
  func.func @while_test_remove_unused_results(%arg0: tensor<i32>, %arg1: tensor<i32>) -> (tensor<i32>, tensor<i32>) {

			keyPath:      "./testdata/cert-chain.pem",
			expectResult: false,
		},
		"key not exist": {
			certPath:     "./testdata/cert-chain.pem",
			keyPath:      "./invalid-path/invalid-file",
			expectResult: false,
		},
		"key and cert valid": {
			certPath:     "./testdata/cert-chain.pem",
			keyPath:      "./testdata/cert-chain.pem",
			expectResult: true,
		},
	}

          connectionPool = connectionPool,
          readTimeoutMillis = client.readTimeoutMillis,
          writeTimeoutMillis = client.writeTimeoutMillis,
          socketConnectTimeoutMillis = chain.connectTimeoutMillis,
          socketReadTimeoutMillis = chain.readTimeoutMillis,
          pingIntervalMillis = client.pingIntervalMillis,
          retryOnConnectionFailure = client.retryOnConnectionFailure,
          fastFallback = client.fastFallback,

 */
class RetryAndFollowUpInterceptor(private val client: OkHttpClient) : Interceptor {
  @Throws(IOException::class)
  override fun intercept(chain: Interceptor.Chain): Response {
    val realChain = chain as RealInterceptorChain
    var request = chain.request
    val call = realChain.call
    var followUpCount = 0
    var priorResponse: Response? = null
    var newRoutePlanner = true

		"citadel_server_cert_chain_expiry_timestamp",
		"The unix timestamp, in seconds, when Citadel cert chain will expire. "+
			"A negative time indicates the cert is expired.",
	)
	certChainExpirySeconds = monitoring.NewDerivedGauge(
		"citadel_server_cert_chain_expiry_seconds",
		"The time remaining, in seconds, before the certificate chain will expire. "+
			"A negative value indicates the cert is expired.",
	)
)

	// Sign generates a certificate for a workload or CA, from the given CSR and cert opts.
	Sign(csrPEM []byte, opts ca.CertOpts) ([]byte, error)
	// SignWithCertChain is similar to Sign but returns the leaf cert and the entire cert chain.
	SignWithCertChain(csrPEM []byte, opts ca.CertOpts) ([]string, error)
	// GetCAKeyCertBundle returns the KeyCertBundle used by CA.
	GetCAKeyCertBundle() *util.KeyCertBundle
}

	ProxyMetadataJSON = `
	{
      "FILE_MOUNTED_CERTS": "true",
      "ISTIO_META_TLS_CLIENT_CERT_CHAIN": "/client-certs/cert-chain.pem",
      "ISTIO_META_TLS_CLIENT_KEY": "/client-certs/key.pem",
      "ISTIO_META_TLS_CLIENT_ROOT_CERT": "/client-certs/root-cert.pem",
      "ISTIO_META_TLS_SERVER_CERT_CHAIN": "/server-certs/cert-chain.pem",
      "ISTIO_META_TLS_SERVER_KEY": "/server-certs/key.pem",

apiVersion: release-notes/v2
kind: bug-fix
area: traffic-management

issue:
  - 51377

releaseNotes:
- |