Update login_vars.yml

Signed-off-by: sakshiarora13 <sakshi_arora1@dell.com>

telemetry/input_params/login_vars.yml

@@ -14,26 +14,31 @@
 ---
 
 # Username used for connecting to timescale db
-# The length of the username should be at least 2 characters.
-# Required field
-timescaledb_user: postgres
+# The username must not contain -,\, ',"
+# The Length of the username should be at least 2 characters.
+# Mandatory field
+timescaledb_user: ""
 
 # Password used for connecting to timescale db
-# The length of the password should be at least 2 characters.
-# Required field
-timescaledb_password: postgres
+# The password must not contain -,\, ',"
+# The Length of the password should be at least 2 characters.
+# Mandatory field
+timescaledb_password: ""
 
 # Username used for connecting to mysql db
-# The length of the username should be at least 2 characters.
-# Required field
-mysqldb_user: mysql
+# The username must not contain -,\, ',"
+# The Length of the username should be at least 2 characters.
+# Mandatory field
+mysqldb_user: ""
 
 # Password used for connecting to mysql db
-# The length of the password should be at least 2 characters.
-# Required field
-mysqldb_password: mysql
+# The password must not contain -,\, ',"
+# The Length of the password should be at least 2 characters.
+# Mandatory field
+mysqldb_password: ""
 
 # Password used for connecting to timescale db for root user
-# The length of the password should be at least 2 characters.
-# Required field
-mysqldb_root_password: mysql
+# The password must not contain -,\, ',"
+# The Length of the password should be at least 2 characters.
+# Mandatory field
+mysqldb_root_password: ""