Run cockroach in single node "cluster"

cockroach_start.sh

# Starts a single node instance of cockroach on localhost
cockroach start-single-node --insecure --listen-addr=localhost --http-addr=localhost:PORT_NUM

# example of how to connect sql prompt to "cluster"
cockroach sql --insecure --database=database_name

# Create a database, user, grant permissions
create database if not exists database_name;
create user if not exists admin_user;
create user if not exists normal_user;
grant all on database database_name to admin_user;
grant select, insert, update on database database_name to normal_user;