Try to loop in icinga with posgtres clusters and databases

gistfile1.txt

apply Service "pg-NOW()-check" {
  check_command = "pgsql"
  // var db_dict = { "db1" = 5432, "db2" = 5433, "db3" = 5434, "db4" = 5435 }
  for (db_key => db_value in db_dict) {
    //need to out into host file
    vars.pgsql_hostname = host.address
    vars.pgsql_database = db_key
    vars.pgsql_port = db_value

    // monit user & password
    vars.pgsql_username = "xxx"
    vars.pgsql_password = "xxx"
    vars.pgsql_query = "select now();"
    vars.pgsql_warning = 2
    }
  assign where host.vars.db_type == "postgres"
}