CASTOR-5092 RFE: Set default location of tape_key.pem to be /etc/castor/tape_key.pem

Fixed.

The TapeServer:XrootPrivateKey castor.conf parameter is now:

TapeServer XrootPrivateKey /etc/castor/tape_key.pem

castor/castor.conf

@@ -527,7 +527,7 @@
 
 # The file hosting the Xroot private key to be used by tapeseverd to sign Xroot
 # URLs.
-#TapeServer XrootPrivateKey /opt/xrootd/keys/tape_key.pem
+#TapeServer XrootPrivateKey /etc/castor/tape_key.pem
 
 # Number of memory buffers in the data-transfer cache.
 #TapeServer NbBufs 300

castor/tape/tapeserver/daemon/DataTransferConfig.cpp

@@ -83,7 +83,7 @@ castor::tape::tapeserver::daemon::DataTransferConfig
   config.remoteFileProtocol = castorConf.getConfEntString(
     "TapeServer", "RemoteFileProtocol", "RFIO", log);
   config.xrootPrivateKey = castorConf.getConfEntString(
-    "TapeServer", "XrootPrivateKey", "/opt/xrootd/keys/tape_key.pem", log);
+    "TapeServer", "XrootPrivateKey", "/etc/castor/tape_key.pem", log);
   config.moverHandlerPort = castorConf.getConfEntInt(
     "DiskManager", "MoverHandlerPort", MOVERHANDLERPORT, log);