Makefile and python cleanups.
Makefile
--------
o Add std copyright notice header
o Update to use repo:onf-make to support virtualenv, etc makefile targets.
o Update help to display a static text block. Grep for strings prefixed
by '##' can become confused and display 'Makefile' instead of target name.
tox.ini
-------
o Update to also support python 3.10+
Change-Id: Id8183ad03df252c81631a8c5ef4f08fe23d0ada5
diff --git a/makefiles/config.mk b/makefiles/config.mk
new file mode 100644
index 0000000..cf07bc2
--- /dev/null
+++ b/makefiles/config.mk
@@ -0,0 +1,133 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2023 Open Networking Foundation (ONF) and the ONF Contributors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------
+# https://gerrit.opencord.org/plugins/gitiles/onf-make
+# ONF.makefiles.include.version = 1.1
+# ONF.confg.mk = 1.5
+# -----------------------------------------------------------------------
+
+--repo-name-- := onf-make
+--repo-name-- ?= $(error --repo-name--= is required)
+
+##--------------------------------##
+##---] Disable lint targets [---##
+##--------------------------------##
+# NO-LINT-DOC8 := true
+# NO-LINT-GOLANG := true
+# NO-LINT-GROOVY := true# # Note[1]
+# NO-LINT-JJB := true# # Note[2]
+# NO-LINT-JSON := true# # Note[1]
+# NO-LINT-MAKEFILE := true# # Note[1]
+# NO-LINT-REUSE := true # License check
+# NO-LINT-ROBOT := true
+# NO-LINT-SHELL := true# # Note[1]
+# NO-LINT-YAML := true# # Note[1]
+
+# NO-LINT-FLAKE8 := true# # Note[1]
+# NO-LINT-PYTHON := true# # Note[1]
+# NO-LINT-PYLINT := true# # Note[1]
+
+# Note[1] - A boatload of source to cleanup prior to enable.
+# Note[2] - No sources available
+
+##---------------------------------##
+##---] Conditional make logic [---##
+##---------------------------------##
+# USE-ONF-DOCKER-MK := true
+# USE-ONF-GERRIT-MK := true
+# USE-ONF-GIT-MK := true
+# USE-ONF-JJB-MK := true
+# USE-VOLTHA-RELEASE-MK := true
+
+##----------------------##
+##---] Debug Mode [---##
+##----------------------##
+# export DEBUG := 1 # makefile debug
+# export DISTUTILS_DEBUG := 1 # verbose: pip
+# export DOCKER_DEBUG := 1 # verbose: docker
+# export VERBOSE := 1 # makefile debug
+
+##-----------------------------------##
+##---] JJB/Jenkins Job Builder [---##
+##-----------------------------------##
+JJB_VERSION ?= 2.8.0
+JOBCONFIG_DIR ?= job-configs
+
+##---------------------------------##
+##---] Filesystem exclusions [---##
+##---------------------------------##
+onf-excl-dirs := $(null) # make clean: dirs=
+onf-excl-dirs += .venv# # $(venv-name)
+onf-excl-dirs += vendor# # golang / voltha*-go
+onf-excl-dirs += patches# # voltha docs - python upgrade
+onf-excl-dirs += .tox # also a python dependency
+
+ifeq ($(--repo-name--),voltha-docs)
+ lint-doc8-excl += '_build' # TODO: deprecate
+endif
+
+onf-excl-dirs ?= $(error onf-excl-dirs= is required)
+
+##-----------------------------##
+##---] Feature Detection [---##
+##-----------------------------##
+# [TODO] include makefiles/features/include.mk
+# [TODO] All logic below can migrate there.
+
+$(if $(filter %ci-management,$(--repo-name--)),\
+ $(eval --REPO-IS-CI-MANAGEMENT-- := true)\
+)
+
+$(if $(filter %voltha-docs,$(--repo-name--)),\
+ $(eval --REPO-IS-VOLTHA-DOCS-- := true)\
+)
+
+# create makefiles/config/byrepo/{--repo-name--}.mk for one-off snowflakes ?
+# $(if $(wildcard docker),$(eval USE-ONF-DOCKER-MK := true))
+
+##-------------------------##
+##---] Derived Flags [---##
+##-------------------------##
+ifdef --REPO-IS-CI-MANAGEMENT--
+ USE-ONF-JJB := true
+
+ onf-excl-dirs += global-jjb
+ onf-excl-dirs += lf-ansible
+ onf-excl-dirs += packer
+endif
+
+ifdef --REPO-IS-VOLTHA-DOCS--
+ onf-excl-dirs += _build
+ onf-excl-dirs += repos
+endif
+
+ifdef NO-LINT-PYTHON
+ NO-LINT-FLAKE8 := true
+ NO-LINT-PYLINT := true
+endif
+
+ifndef USE-ONF-JJB
+ NO-LINT-JJB := true
+endif
+
+onf-excl-dirs := $(sort $(strip $(onf-excl-dirs)))
+
+# --------------------------------------------------------------------
+# Repository specific values
+# --------------------------------------------------------------------
+# sterile-dirs += archives
+
+# [EOF]