include common.mk relative to MAKE_PATH

Makefile.docker

@@ -1,6 +1,7 @@
 # Suitable for dockerfile based services
 .PHONY: clean clean-test clean-pyc clean-build docs help common.mk
 .DEFAULT_GOAL := help
+MAKE_PATH := $(dir $(realpath $(firstword $(MAKEFILE_LIST))))
 
 NET_NAME := docker_net
 SERVICE := docker_image

Makefile.python

@@ -1,8 +1,9 @@
 # Suitable for python monorepo with packages in subdirectories(contains project.mk)
 .PHONY : _forward Makefile common.mk
 .DEFAULT_GOAL := help
+MAKE_PATH := $(dir $(realpath $(firstword $(MAKEFILE_LIST))))
 
-include common.mk
+include ${MAKE_PATH}/common.mk
 
 SUBPKGS := $(patsubst %setup.py,%,$(wildcard */setup.py))
 $(warning SUBPKGS is $(SUBPKGS))