diff --git a/tools/jenkins/build_interop_image.sh b/tools/jenkins/build_interop_image.sh
index b5958588f2bc1ba6c8115ffed4f1141b7fd6cc29..3664eed84d9b0567f1ae53c10f0453f3593789e3 100755
--- a/tools/jenkins/build_interop_image.sh
+++ b/tools/jenkins/build_interop_image.sh
@@ -35,12 +35,12 @@ set -x
 
 cd `dirname $0`/../..
 GRPC_ROOT=`pwd`
-MOUNT_ARGS="-v $GRPC_ROOT:/var/local/jenkins/grpc"
+MOUNT_ARGS="-v $GRPC_ROOT:/var/local/jenkins/grpc:ro"
 
 GRPC_JAVA_ROOT=`cd ../grpc-java && pwd`
 if [ "$GRPC_JAVA_ROOT" != "" ]
 then
-  MOUNT_ARGS+=" -v $GRPC_JAVA_ROOT:/var/local/jenkins/grpc-java"
+  MOUNT_ARGS+=" -v $GRPC_JAVA_ROOT:/var/local/jenkins/grpc-java:ro"
 else
   echo "WARNING: grpc-java not found, it won't be mounted to the docker container."
 fi
@@ -48,7 +48,7 @@ fi
 GRPC_GO_ROOT=`cd ../grpc-go && pwd`
 if [ "$GRPC_GO_ROOT" != "" ]
 then
-  MOUNT_ARGS+=" -v $GRPC_GO_ROOT:/var/local/jenkins/grpc-go"
+  MOUNT_ARGS+=" -v $GRPC_GO_ROOT:/var/local/jenkins/grpc-go:ro"
 else
   echo "WARNING: grpc-go not found, it won't be mounted to the docker container."
 fi
@@ -60,6 +60,14 @@ mkdir -p /tmp/ccache
 #  BASE_NAME - base name used to locate the base Dockerfile and build script
 #  TTY_FLAG - optional -t flag to make docker allocate tty.
 
+# Mount service account dir if available.
+# If service_directory does not contain the service account JSON file,
+# some of the tests will fail.
+if [ -e $HOME/service_account ]
+then
+  MOUNT_ARGS+=" -v $HOME/service_account:/var/local/jenkins/service_account:ro"
+fi
+
 # Use image name based on Dockerfile checksum
 BASE_IMAGE=${BASE_NAME}_base:`sha1sum tools/jenkins/$BASE_NAME/Dockerfile | cut -f1 -d\ `
 
diff --git a/tools/jenkins/grpc_interop_csharp/build_interop.sh b/tools/jenkins/grpc_interop_csharp/build_interop.sh
index e91cbed81ea7fb265c81422689db2d905200bd46..8fde687900a380025ccd023adc68f73d47eb1732 100755
--- a/tools/jenkins/grpc_interop_csharp/build_interop.sh
+++ b/tools/jenkins/grpc_interop_csharp/build_interop.sh
@@ -34,6 +34,9 @@ set -e
 mkdir -p /var/local/git
 git clone --recursive /var/local/jenkins/grpc /var/local/git/grpc
 
+# copy service account keys if available
+cp -r /var/local/jenkins/service_account $HOME || true
+
 cd /var/local/git/grpc
 
 make install-certs
diff --git a/tools/jenkins/grpc_interop_cxx/build_interop.sh b/tools/jenkins/grpc_interop_cxx/build_interop.sh
index 4163e11ecc786f18c94231e53d635817c06b8108..1c0828d23a6ea6ced82f87b80fc91ce7c306bcde 100755
--- a/tools/jenkins/grpc_interop_cxx/build_interop.sh
+++ b/tools/jenkins/grpc_interop_cxx/build_interop.sh
@@ -34,6 +34,9 @@ set -e
 mkdir -p /var/local/git
 git clone --recursive /var/local/jenkins/grpc /var/local/git/grpc
 
+# copy service account keys if available
+cp -r /var/local/jenkins/service_account $HOME || true
+
 cd /var/local/git/grpc
 
 make install-certs
diff --git a/tools/jenkins/grpc_interop_go/build_interop.sh b/tools/jenkins/grpc_interop_go/build_interop.sh
index 78dd4ea9cf5eb8495a4e53835598a0953d0a3559..05fc6dfdfb62af86ddace04317f2d348f4c26d20 100755
--- a/tools/jenkins/grpc_interop_go/build_interop.sh
+++ b/tools/jenkins/grpc_interop_go/build_interop.sh
@@ -36,6 +36,9 @@ set -e
 # to test instead of using "go get" to download from Github directly.
 git clone --recursive /var/local/jenkins/grpc-go src/gooogle.golang.org/grpc
 
+# copy service account keys if available
+cp -r /var/local/jenkins/service_account $HOME || true
+
 # Get dependencies from GitHub
 # NOTE: once grpc-go dependencies change, this needs to be updated manually
 # but we don't expect this to happen any time soon.
diff --git a/tools/jenkins/grpc_interop_java/build_interop.sh b/tools/jenkins/grpc_interop_java/build_interop.sh
index 4ee2f44e3d5b42b68b5a1932ee8c7af8647c5852..9997c63308b50fa739840c84b7d0100d47570b60 100755
--- a/tools/jenkins/grpc_interop_java/build_interop.sh
+++ b/tools/jenkins/grpc_interop_java/build_interop.sh
@@ -34,6 +34,9 @@ set -e
 mkdir -p /var/local/git
 git clone --recursive --depth 1 /var/local/jenkins/grpc-java /var/local/git/grpc-java
 
+# copy service account keys if available
+cp -r /var/local/jenkins/service_account $HOME || true
+
 cd /var/local/git/grpc-java
 
 ./gradlew :grpc-interop-testing:installDist -PskipCodegen=true
diff --git a/tools/jenkins/grpc_interop_node/build_interop.sh b/tools/jenkins/grpc_interop_node/build_interop.sh
index 55e2a4081bcc89a7e7213276a830f7abf1c11e2f..84e25e330886ab3c15cacea0af121a25e49bd3d3 100755
--- a/tools/jenkins/grpc_interop_node/build_interop.sh
+++ b/tools/jenkins/grpc_interop_node/build_interop.sh
@@ -34,6 +34,9 @@ set -e
 mkdir -p /var/local/git
 git clone --recursive /var/local/jenkins/grpc /var/local/git/grpc
 
+# copy service account keys if available
+cp -r /var/local/jenkins/service_account $HOME || true
+
 cd /var/local/git/grpc
 nvm use 0.12
 nvm alias default 0.12  # prevent the need to run 'nvm use' in every shell
diff --git a/tools/jenkins/grpc_interop_php/build_interop.sh b/tools/jenkins/grpc_interop_php/build_interop.sh
index 745dea845d6f2ed6b51d994f9dc340502f83233b..cd9d67804af685ed987362423e401be1d32a98ba 100755
--- a/tools/jenkins/grpc_interop_php/build_interop.sh
+++ b/tools/jenkins/grpc_interop_php/build_interop.sh
@@ -34,6 +34,9 @@ set -e
 mkdir -p /var/local/git
 git clone --recursive /var/local/jenkins/grpc /var/local/git/grpc
 
+# copy service account keys if available
+cp -r /var/local/jenkins/service_account $HOME || true
+
 cd /var/local/git/grpc
 rvm --default use ruby-2.1
 
diff --git a/tools/jenkins/grpc_interop_ruby/build_interop.sh b/tools/jenkins/grpc_interop_ruby/build_interop.sh
index 7d407e7d0a9e2971df9187aef0dda32db6365fd5..c5023f5c1d4e18cbe371b5dfbcf7fd4f2c39782b 100755
--- a/tools/jenkins/grpc_interop_ruby/build_interop.sh
+++ b/tools/jenkins/grpc_interop_ruby/build_interop.sh
@@ -34,6 +34,9 @@ set -e
 mkdir -p /var/local/git
 git clone --recursive /var/local/jenkins/grpc /var/local/git/grpc
 
+# copy service account keys if available
+cp -r /var/local/jenkins/service_account $HOME || true
+
 cd /var/local/git/grpc
 rvm --default use ruby-2.1
 
diff --git a/tools/run_tests/run_interop_tests.py b/tools/run_tests/run_interop_tests.py
index 374dec1851c0b1918a52b42694b55a442b8109ab..48c34f68713639b7f21466d50678f6621930fe68 100755
--- a/tools/run_tests/run_interop_tests.py
+++ b/tools/run_tests/run_interop_tests.py
@@ -82,7 +82,7 @@ class CXXLanguage:
             ['--use_tls=true'])
 
   def cloud_to_prod_env(self):
-    return None
+    return {}
 
   def server_args(self):
     return ['bins/opt/interop_server', '--use_tls=true']
@@ -132,7 +132,7 @@ class JavaLanguage:
             ['--use_tls=true', '--use_test_ca=true'])
 
   def cloud_to_prod_env(self):
-    return None
+    return {}
 
   def server_args(self):
     return ['./run-test-server.sh', '--use_tls=true']
@@ -158,7 +158,7 @@ class GoLanguage:
             ['--use_tls=true'])
 
   def cloud_to_prod_env(self):
-    return None
+    return {}
 
   def server_args(self):
     return ['go', 'run', 'server.go', '--use_tls=true']
@@ -259,6 +259,9 @@ _TEST_CASES = ['large_unary', 'empty_unary', 'ping_pong',
                'client_streaming', 'server_streaming',
                'cancel_after_begin', 'cancel_after_first_response']
 
+_AUTH_TEST_CASES = ['compute_engine_creds', 'jwt_token_creds',
+                    'oauth2_auth_token', 'per_rpc_creds']
+
 
 def docker_run_cmdline(cmdline, image, docker_args=[], cwd=None, environ=None):
   """Wraps given cmdline array to create 'docker run' cmdline from it."""
@@ -287,22 +290,54 @@ def bash_login_cmdline(cmdline):
   return ['bash', '-l', '-c', ' '.join(cmdline)]
 
 
-def cloud_to_prod_jobspec(language, test_case, docker_image=None):
+def add_auth_options(language, test_case, cmdline, env):
+  """Returns (cmdline, env) tuple with cloud_to_prod_auth test options."""
+
+  language = str(language)
+  cmdline = list(cmdline)
+  env = env.copy()
+
+  # TODO(jtattermusch): this file path only works inside docker
+  key_filepath = '/root/service_account/stubbyCloudTestingTest-ee3fce360ac5.json'
+  oauth_scope_arg = '--oauth_scope=https://www.googleapis.com/auth/xapi.zoo'
+  key_file_arg = '--service_account_key_file=%s' % key_filepath
+  default_account_arg = '--default_service_account=830293263384-compute@developer.gserviceaccount.com'
+
+  if test_case in ['jwt_token_creds', 'per_rpc_creds', 'oauth2_auth_token']:
+    if language in ['csharp', 'node', 'php', 'ruby']:
+      env['GOOGLE_APPLICATION_CREDENTIALS'] = key_filepath
+    else:
+      cmdline += [key_file_arg]
+
+  if test_case in ['per_rpc_creds', 'oauth2_auth_token']:
+    cmdline += [oauth_scope_arg]
+
+  if test_case == 'compute_engine_creds':
+    cmdline += [oauth_scope_arg, default_account_arg]
+
+  return (cmdline, env)
+
+
+def cloud_to_prod_jobspec(language, test_case, docker_image=None, auth=False):
   """Creates jobspec for cloud-to-prod interop test"""
-  cmdline = bash_login_cmdline(language.cloud_to_prod_args() +
-                               ['--test_case=%s' % test_case])
+  cmdline = language.cloud_to_prod_args() + ['--test_case=%s' % test_case]
   cwd = language.client_cwd
   environ = language.cloud_to_prod_env()
+  if auth:
+    cmdline, environ = add_auth_options(language, test_case, cmdline, environ)
+  cmdline = bash_login_cmdline(cmdline)
+
   if docker_image:
     cmdline = docker_run_cmdline(cmdline, image=docker_image, cwd=cwd, environ=environ)
     cwd = None
     environ = None
 
+  suite_name='cloud_to_prod_auth' if auth else 'cloud_to_prod'
   test_job = jobset.JobSpec(
           cmdline=cmdline,
           cwd=cwd,
           environ=environ,
-          shortname="cloud_to_prod:%s:%s" % (language, test_case),
+          shortname="%s:%s:%s" % (suite_name, language, test_case),
           timeout_seconds=2*60,
           flake_retries=5 if args.allow_flakes else 0,
           timeout_retries=2 if args.allow_flakes else 0)
@@ -381,6 +416,11 @@ argp.add_argument('--cloud_to_prod',
                   action='store_const',
                   const=True,
                   help='Run cloud_to_prod tests.')
+argp.add_argument('--cloud_to_prod_auth',
+                  default=False,
+                  action='store_const',
+                  const=True,
+                  help='Run cloud_to_prod_auth tests.')
 argp.add_argument('-s', '--server',
                   choices=['all'] + sorted(_SERVERS),
                   action='append',
@@ -475,6 +515,14 @@ try:
                                          docker_image=docker_images.get(str(language)))
         jobs.append(test_job)
 
+  if args.cloud_to_prod_auth:
+    for language in languages:
+      for test_case in _AUTH_TEST_CASES:
+        test_job = cloud_to_prod_jobspec(language, test_case,
+                                         docker_image=docker_images.get(str(language)),
+                                         auth=True)
+        jobs.append(test_job)
+
   for server in args.override_server:
     server_name = server[0]
     (server_host, server_port) = server[1].split(':')