I have a bunch of students records in my database(MySQL) and i want to pull those to elastic search which matches my pattern . Now i need to write a configuration file for this .I'm clear about writing input and output plugins.
But I don't have much idea in writing the grok filter plugin even though i visited the documentations.
my pattern : g^[a-zA-Z ] (Accepts names that starts with g)
field name in my table : Student_Name
Can any one help me to frame the filter plugin ??