GH-782 updates common makefile to use var namespace throughout (#783)
GH-782 updates common makefile to use var namespace throughout (#783)


confluentinc/examples,confluentinc/examples,confluentinc/examples,confluentinc/examples,confluentinc/examples,confluentinc/examples,confluentinc/examples,confluentinc/examples,confluentinc/examples,confluentinc/examples