[Audit Logging] End2end test for audit logging in authorization policy

src/core/tsi/test_creds/BUILD

@@ -22,8 +22,8 @@ exports_files([
     "server0.pem",
     "client.key",
     "client.pem",
-    "client3.key",
-    "client3.pem",
+    "client-with-spiffe.key",
+    "client-with-spiffe.pem",
     "badserver.key",
     "badserver.pem",
     "badclient.key",

src/core/tsi/test_creds/README

@@ -62,18 +62,14 @@ common name which is set to testclient2.
 $ openssl x509 -req -CA ca.pem -CAkey ca.key -CAcreateserial -in client2.csr \
   -out client2.pem -days 3650
 
-client3 is issued by CA:
+client-with-spiffe is issued by CA:
 -----------------------
 
-$ openssl genrsa -out client3.key.rsa 2048
-$ openssl pkcs8 -topk8 -in client3.key.rsa -out client3.key -nocrypt
-$ openssl req -new -key client3.key -out client3.csr -config client3-openssl.cnf
-
-When prompted for certificate information, everything is default except the
-common name which is set to testclient3.
-
-$ openssl x509 -req -CA ca.pem -CAkey ca.key -CAcreateserial -in client3.csr \
-  -out client3.pem -extensions v3_req -extfile client3-openssl.cnf -days 3650
+$ openssl genrsa -out client-with-spiffe.key.rsa 2048
+$ openssl pkcs8 -topk8 -in client-with-spiffe.key.rsa -out client-with-spiffe.key -nocrypt
+$ openssl req -new -key client-with-spiffe.key -out client-with-spiffe.csr -config client-with-spiffe-openssl.cnf
+$ openssl x509 -req -CA ca.pem -CAkey ca.key -CAcreateserial -in client-with-spiffe.csr \
+  -out client-with-spiffe.pem -extensions v3_req -extfile client-with-spiffe-openssl.cnf -days 3650
 
 server0 is issued by CA:
 ------------------------

test/cpp/end2end/BUILD

@@ -943,8 +943,8 @@ grpc_cc_test(
     srcs = ["grpc_authz_end2end_test.cc"],
     data = [
         "//src/core/tsi/test_creds:ca.pem",
-        "//src/core/tsi/test_creds:client3.key",
-        "//src/core/tsi/test_creds:client3.pem",
+        "//src/core/tsi/test_creds:client-with-spiffe.key",
+        "//src/core/tsi/test_creds:client-with-spiffe.pem",
         "//src/core/tsi/test_creds:server1.key",
         "//src/core/tsi/test_creds:server1.pem",
     ],