diff --git a/makefiles/lint/doc8/include.mk b/makefiles/lint/doc8/include.mk
index 86f9677..23f7b0b 100644
--- a/makefiles/lint/doc8/include.mk
+++ b/makefiles/lint/doc8/include.mk
@@ -49,7 +49,7 @@
 	$(activate) && doc8 --version
 	@echo
 	$(activate) && doc8 $(lint-doc8-excl)
-	$(call banner-leave,Target $@)
+	$(call banner-enter,Target $@)
 
 ## -----------------------------------------------------------------------
 ## Intent: Display command usage
diff --git a/makefiles/lint/docker/get.sh b/makefiles/lint/docker/get.sh
new file mode 100644
index 0000000..4e4a7f6
--- /dev/null
+++ b/makefiles/lint/docker/get.sh
@@ -0,0 +1,64 @@
+#!/bin/bash
+# -----------------------------------------------------------------------
+# 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.
+#
+# SPDX-FileCopyrightText: 2023 Open Networking Foundation (ONF) and the ONF Contributors
+# SPDX-License-Identifier: Apache-2.0
+# -----------------------------------------------------------------------
+
+## -----------------------------------------------------------------------
+## Intent: Install a bbsim binary for local development use.
+## -----------------------------------------------------------------------
+## Note: A python or golang script may be a simpler answer.
+##       Interpreter modules provide answers for uname -{a,m,o}
+##       with dictionary translation into needed values.
+## -----------------------------------------------------------------------
+
+# import platform
+# platform.processor()
+# platform.system        # Windows
+
+# lshw:    width: 64 bits
+
+# >>> import platform
+# >>> platform.machine()
+# 'x86'
+
+
+# $ uname -m
+# armv7l
+
+## which arch
+# https://github.com/hadolint/hadolint/releases/tag/v2.12.0
+case "$(uname -a)" in
+    *x86_64*)
+esac
+
+os=''
+case "$(uname -o)" in
+    *Linux*) os='Linux'
+esac
+
+
+# hadolint-Darwin-x86_64
+# hadolint-Darwin-x86_64.sha256
+# hadolint-Linux-arm64
+# hadolint-Linux-arm64.sha256
+# hadolint-Linux-x86_64
+# hadolint-Linux-x86_64.sha256
+# hadolint-Windows-x86_64.exe
+# hadolint-Windows-x86_64.exe.sha256
+# Source code (zip)
+# Source code (tar.gz)
diff --git a/makefiles/lint/docker/hadolint.mk b/makefiles/lint/docker/hadolint.mk
new file mode 100644
index 0000000..eb182f7
--- /dev/null
+++ b/makefiles/lint/docker/hadolint.mk
@@ -0,0 +1,80 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2017-2023 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.
+# -----------------------------------------------------------------------
+
+##-------------------##
+##---]  GLOBALS  [---##
+##-------------------##
+
+HADOLINT = $(docker-run-app) $(is-stdin) $(vee-citools)-hadolint hadolint
+
+ifdef LOCAL_LINT
+  lint-hadolint-dep = lint-hadolint-local
+else
+  lint-hadolint-dep = lint-hadolint
+endif
+
+## -----------------------------------------------------------------------
+## -----------------------------------------------------------------------
+.PHONY: $(lint-hadolint-dep)
+
+lint : $(lint-hadolint-dep)
+
+lint-dockerfile : $(lint-hadolint-dep)
+
+## -----------------------------------------------------------------------
+## -----------------------------------------------------------------------
+lint-hadolint:
+
+	@echo
+	@echo '** -------------------------------------------------------------'
+	@echo "** $(MAKE): processing target [$@]"
+	@echo '** -------------------------------------------------------------'
+	$(HIDE)${HADOLINT} $$(find ./build -name "Dockerfile*")
+	@echo "Dockerfile lint check OK"
+
+## -----------------------------------------------------------------------
+## -----------------------------------------------------------------------
+hadolint-cmd := ./hadolint-Linux-x86_64
+
+lint-hadolint-local: hadolint-get
+	$(hadolint-cmd) $$(find ./build -name "Dockerfile*")
+
+## -----------------------------------------------------------------------
+## Intent: Retrieve the hadolint tool
+## https://github.com/hadolint/hadolint/releases/tag/v2.12.0
+## -----------------------------------------------------------------------
+hadolint-get:
+	true
+#	$(MAKECMDGOALS)/lint/docker/get.sh
+#	$(GIT) clone https://github.com/hadolint/hadolint.git
+#	wget https://github.com/hadolint/hadolint/releases/download/v2.12.0/hadolint-Linux-x86_64
+
+## -----------------------------------------------------------------------
+## -----------------------------------------------------------------------
+help ::
+	@echo '  lint-dockerfile      Perform all dockerfile lint checks'
+	@echo '  lint-hadolint        Dockerfile lint check'
+
+## -----------------------------------------------------------------------
+## -----------------------------------------------------------------------
+todo ::
+	@echo '  o Update lint-dockerfile to run all dockerfile lint checks'
+
+# [SEE ALSO]
+# https://github.com/hadolint/hadolint
+
+# [EOF]
diff --git a/makefiles/lint/docker/include.mk b/makefiles/lint/docker/include.mk
new file mode 100644
index 0000000..9d6b4d0
--- /dev/null
+++ b/makefiles/lint/docker/include.mk
@@ -0,0 +1,70 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2017-2023 Open Networking Foundation
+#
+# 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.
+# -----------------------------------------------------------------------
+
+
+##-------------------##
+##---]  GLOBALS  [---##
+##-------------------##
+.PHONY: lint-hadolint lint-hadolint-all lint-hadolint-modified
+
+## -----------------------------------------------------------------------
+## -----------------------------------------------------------------------
+ifndef NO-LINT-HADOLINT
+  have-rst-files := $(if $(strip $(RST_SOURCE)),true)
+  RST_SOURCE     ?= $(error RST_SOURCE= is required)
+
+  lint-hadolint-mode := $(if $(have-hadolint-files),modified,all)
+  lint : lint-hadolint-$(lint-hadolint-mode)
+endif# NO-LINT-HADOLINT
+
+# Consistent targets across lint makefiles
+lint-hadolint-all      : lint-hadolint
+lint-hadolint-modified : lint-hadolint
+
+## -----------------------------------------------------------------------
+## -----------------------------------------------------------------------
+include $(MAKEDIR)/lint/hadolint/excl.mk
+
+ifdef lint-hadolint-excl
+  lint-hadolint-excl-args += $(addprefix --ignore-path$(space),$(lint-hadolint-excl))
+endif
+lint-hadolint-excl-args += $(addprefix --ignore-path$(space),$(lint-hadolint-excl-raw))
+
+lint-hadolint-args += --max-line-length 120
+
+lint-hadolint: $(venv-activate-script)
+	@echo
+	@echo '** -----------------------------------------------------------------------'
+	@echo '** hadolint *.rst syntax checking'
+	@echo '** -----------------------------------------------------------------------'
+	$(activate) && hadolint --version
+	@echo
+	$(activate) && hadolint $(lint-hadolint-excl-args) $(lint-hadolint-args) .
+
+## -----------------------------------------------------------------------
+## Intent: Display command usage
+## -----------------------------------------------------------------------
+help::
+	@echo '  lint-hadolint          Syntax check python using the hadolint command'
+  ifdef VERBOSE
+	@echo '  lint-hadolint-all       hadolint checking: exhaustive'
+	@echo '  lint-hadolint-modified  hadolint checking: only modified'
+  endif
+
+# include $(MAKEDIR)/lint/docker/hadolint.mk
+
+# [EOF]
diff --git a/makefiles/lint/hadolint/excl.mk b/makefiles/lint/hadolint/excl.mk
new file mode 100644
index 0000000..cc4b4af
--- /dev/null
+++ b/makefiles/lint/hadolint/excl.mk
@@ -0,0 +1,17 @@
+# -----------------------------------------------------------------------
+# 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.
+# -----------------------------------------------------------------------
+
+# [EOF]
diff --git a/makefiles/lint/license/include.mk b/makefiles/lint/license/include.mk
index c3569f3..431e45e 100644
--- a/makefiles/lint/license/include.mk
+++ b/makefiles/lint/license/include.mk
@@ -15,21 +15,27 @@
 # limitations under the License.
 # -----------------------------------------------------------------------
 
-ifndef mk-include--onf-lint-license#       # one-time loader
-ifndef NO-LINT-LICENSE
+##-------------------##
+##---]  GLOBALS  [---##
+##-------------------##
 
-$(if $(DEBUG),$(warning ENTER))
+##-------------------##
+##---]  TARGETS  [---##
+##-------------------##
+ifndef NO-LINT-REUSE
+  lint : lint-license
+endif
 
-$(if $(USE_LINT_LICENSE)\
-  ,$(eval include $(ONF_MAKEDIR)/lint/license/voltha-system-tests/include.mk)\
-  ,$(eval include $(ONF_MAKEDIR)/lint/license/common.mk)\
-)
+## -----------------------------------------------------------------------
+## Intent: Perform a lint check on makefile sources
+## -----------------------------------------------------------------------
+lint-license:
+	reuse --root . lint
 
-  mk-include--onf-lint-license := true
-
-$(if $(DEBUG),$(warning LEAVE))
-
-endif # NO-LINT-LICENSE
-endif # mk-include--onf-lint-license
+## -----------------------------------------------------------------------
+## Intent: Display command help
+## -----------------------------------------------------------------------
+help-summary ::
+	@echo '  lint-reuse              License syntax checking'
 
 # [EOF]
diff --git a/makefiles/lint/license/license-check.sh b/makefiles/lint/license/license-check.sh
index 73f72db..04978cf 100755
--- a/makefiles/lint/license/license-check.sh
+++ b/makefiles/lint/license/license-check.sh
@@ -1,5 +1,4 @@
 #!/usr/bin/env bash
-
 # -----------------------------------------------------------------------
 # Copyright 2022-2024 Open Networking Foundation (ONF) and the ONF Contributors
 #
@@ -156,10 +155,12 @@
   ! -path "*/docs/*" \
   ! -name 'output.xml' \
   ! -path "*/vst_venv/*" \
+  ! -path '*/\.venv/*' \
   ! -name '*#*' \
   ! -path '*scripts/flog/*' \
   ! -name '*~' \
   ! -name 'VERSION' \
+  ! -name 'kail' \
   ! -name 'patch' \
   -print0 )
 
diff --git a/makefiles/lint/license/voltha-system-tests/include.mk b/makefiles/lint/license/voltha-system-tests/include.mk
index ebbeb90..55ffedb 100644
--- a/makefiles/lint/license/voltha-system-tests/include.mk
+++ b/makefiles/lint/license/voltha-system-tests/include.mk
@@ -15,11 +15,19 @@
 # limitations under the License.
 # -----------------------------------------------------------------------
 
+<<<<<<< HEAD
 .PHONY: lint-license-vst
 
 ## -----------------------------------------------------------------------
 ## -----------------------------------------------------------------------
 lint : lint-license-vst
+=======
+.PHONY: lint-license
+
+## -----------------------------------------------------------------------
+## -----------------------------------------------------------------------
+lint : lint-license
+>>>>>>> dc6caae ([VOL-5064] - Build and deploy voltha-system-tests)
 
 lint-license-gargs += --recursive
 
@@ -38,7 +46,11 @@
 
 # TODO: Normalize into .venv for consistent filtering across projects.
 lint-license-gargs += --exclude-dir='.git'
+<<<<<<< HEAD
 lint-license-gargs += --exclude-dir='vst_venv'
+=======
+lint-license-gargs += --exclude-dir='$(venv-name)'
+>>>>>>> dc6caae ([VOL-5064] - Build and deploy voltha-system-tests)
 lint-license-gargs += --exclude-dir='flog'
 
 lint-license-gargs += --exclude='*.json'
@@ -68,7 +80,11 @@
 ## -----------------------------------------------------------------------
 ## Jenkins job checking logic.
 ## -----------------------------------------------------------------------
+<<<<<<< HEAD
 lint-license-vst:
+=======
+lint-license:
+>>>>>>> dc6caae ([VOL-5064] - Build and deploy voltha-system-tests)
 	$(MAKEDIR)/lint/license/license-check.sh
 
 ## -----------------------------------------------------------------------
diff --git a/makefiles/lint/license/voltha-system-tests/license-check.sh b/makefiles/lint/license/voltha-system-tests/license-check.sh
index 7a9deb9..99fc07f 100755
--- a/makefiles/lint/license/voltha-system-tests/license-check.sh
+++ b/makefiles/lint/license/voltha-system-tests/license-check.sh
@@ -37,9 +37,12 @@
 ## the only question mark.
 ## ---------------------------------------------------------------------------
 
+<<<<<<< HEAD
 echo "BLAH"
 exit 1
 
+=======
+>>>>>>> dc6caae ([VOL-5064] - Build and deploy voltha-system-tests)
 set +e -u -o pipefail
 fail_licensecheck=0
 
@@ -54,17 +57,24 @@
 
 while IFS= read -r -d '' path
 do
+<<<<<<< HEAD
     case "$path" in
 	*venv*) echo "GERR: $path"
 		exit 1
 		;;
     esac
+=======
+>>>>>>> dc6caae ([VOL-5064] - Build and deploy voltha-system-tests)
     if ! grep -q "${gargs[@]}" "${path}";
     then
 	echo "ERROR: $path does not contain License Header"
 	fail_licensecheck=1
     fi
+<<<<<<< HEAD
 done < <(find . \( -name ".git" -o -name '.venv' -o 'vst_venv' \) -prune -o -type f \
+=======
+done < <(find . -name ".git" -prune -o -type f \
+>>>>>>> dc6caae ([VOL-5064] - Build and deploy voltha-system-tests)
   ! -iname "*.png" \
   ! -name "*.asc" \
   ! -name "*.bat" \
@@ -155,8 +165,13 @@
   ! -name "*.pb.h" \
   ! -name "*.pb.cc" \
   ! -path "*/docs/*" \
+<<<<<<< HEAD
   ! -name 'output.xml' \
   ! -path "*/vst_venv/*" \
+=======
+  ! -name 'output.xml' \ 
+  ! -path "*/.venv/*" \
+>>>>>>> dc6caae ([VOL-5064] - Build and deploy voltha-system-tests)
   ! -name '*#*' \
   ! -path '*scripts/flog/*' \
   ! -name '*~' \
diff --git a/makefiles/lint/markdown/include.mk b/makefiles/lint/markdown/include.mk
new file mode 100644
index 0000000..26ebf43
--- /dev/null
+++ b/makefiles/lint/markdown/include.mk
@@ -0,0 +1,62 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2017-2022 Open Networking Foundation
+#
+# 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.
+# -----------------------------------------------------------------------
+
+##-------------------##
+##---]  GLOBALS  [---##
+##-------------------##
+.PHONY: lint-mdl lint-mdl-all lint-mdl-modified
+
+have-rst-files := $(if $(strip $(RST_SOURCE)),true)
+RST_SOURCE     ?= $(error RST_SOURCE= is required)
+
+## -----------------------------------------------------------------------
+## -----------------------------------------------------------------------
+ifndef NO-LINT-MARKDOWN
+  lint-mdl-mode := $(if $(have-mdl-files),modified,all)
+  lint : lint-mdl-$(lint-mdl-mode)
+endif# NO-LINT-MDL
+
+# Consistent targets across lint makefiles
+lint-mdl-all      : lint-mdl
+lint-mdl-modified : lint-mdl
+
+# onf-excl-dirs
+LINT_STYLE ?= mdl_strict.rb
+
+mdl-excludes := $(foreach path,$(onf-exclude-dirs),! -path "./$(path)/*")
+
+lint-mdl:
+	$(call banner-enter,Target $@)
+	@echo "markdownlint(mdl) version: `mdl --version`"
+	@echo "style config:"
+	@echo "---"
+	@cat $(LINT_STYLE)
+	@echo "---"
+# 	mdl -s $(LINT_STYLE) `find -L $(SOURCEDIR) ! -path "./_$(venv-activate-script)/*" ! -path "./_build/*" ! -path "./repos/*" ! -path "*vendor*" -name "*.md"`
+	mdl -s $(LINT_STYLE) `find -L $(SOURCEDIR) $(mdl-excludes) -iname "*.md"`
+
+## -----------------------------------------------------------------------
+## Intent: Display command usage
+## -----------------------------------------------------------------------
+help::
+	@echo '  lint-mdl          Syntax check python using the mdl command'
+  ifdef VERBOSE
+	@echo '  lint-mdl-all       mdl checking: exhaustive'
+	@echo '  lint-mdl-modified  mdl checking: only modified'
+  endif
+
+# [EOF]
diff --git a/makefiles/lint/markdown/urls b/makefiles/lint/markdown/urls
new file mode 100644
index 0000000..86ff76b
--- /dev/null
+++ b/makefiles/lint/markdown/urls
@@ -0,0 +1,6 @@
+# -*- makefile -*-
+
+# Consumer: repo:voltha-docs
+https://github.com/markdownlint/markdownlint
+
+# [EOF]
diff --git a/makefiles/lint/python/find_utils.mk b/makefiles/lint/python/find_utils.mk
new file mode 100644
index 0000000..7ab4c4f
--- /dev/null
+++ b/makefiles/lint/python/find_utils.mk
@@ -0,0 +1,32 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Intent:
+#   o Construct a find command able to gather python files with filtering.
+#   o Used by library makefiles flake8.mk and pylint.mk for iteration.
+# -----------------------------------------------------------------------
+
+## -----------------------------------------------------------------------
+## Intent: Construct a string for invoking find \( excl-pattern \) -prune
+# -----------------------------------------------------------------------
+gen-python-find-excl = \
+  $(strip \
+	-name '__ignored__' \
+	$(foreach dir,$($(1)),-o -name $(dir)) \
+  )
+
+## -----------------------------------------------------------------------
+## Intent: Construct a find command to gather a list of python files
+##         with exclusions.
+## -----------------------------------------------------------------------
+## Usage:
+#	$(activate) & $(call gen-python-find-cmd) | $(args-n1) pylint
+## -----------------------------------------------------------------------
+gen-python-find-cmd = \
+  $(strip \
+    find . \
+      \( $(call gen-python-find-excl,onf-excl-dirs) \) -prune \
+      -o -name '*.py' \
+      -print0 \
+  )
+
+# [EOF]
diff --git a/makefiles/lint/python/flake8 b/makefiles/lint/python/flake8
index 4283c3c..763b942 100644
--- a/makefiles/lint/python/flake8
+++ b/makefiles/lint/python/flake8
@@ -21,9 +21,8 @@
 
 lint : lint-python
 
-lint-python: vst_venv
-	-source ./$</bin/activate \
-	    && set -u \
+lint-python: $(venv-activate-script)
+	-$(activate) \
 	    && pylint $(PYTHON_FILES) \
 	    && flake8 --max-line-length=99 --count $(PYTHON_FILE)S
 
diff --git a/makefiles/lint/python/flake8.mk b/makefiles/lint/python/flake8.mk
index 7a36aaf..6b2b561 100644
--- a/makefiles/lint/python/flake8.mk
+++ b/makefiles/lint/python/flake8.mk
@@ -2,7 +2,7 @@
 # -----------------------------------------------------------------------
 # Copyright 2022-2024 Open Networking Foundation (ONF) and the ONF Contributors
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
+# 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
 #
@@ -15,35 +15,80 @@
 # limitations under the License.
 # -----------------------------------------------------------------------
 
+$(if $(DEBUG),$(warning ENTER))
+
 ##-------------------##
 ##---]  GLOBALS  [---##
 ##-------------------##
+.PHONY: lint-flake8 lint-flake8-all lint-flake8-modified
 
-# Gather sources to check
-# TODO: implement deps, only check modified files
-python-check-find := find . -name '*venv*' -prune\
-  -o \( -name '*.py' \)\
-  -type f -print0
-
-##-------------------##
-##---]  TARGETS  [---##
-##-------------------##
-ifndef NO-LINT-PYTHON-FLAKE8
-  lint        : lint-python-flake8
-  lint-python : lint-python-flake8
-endif
+PYTHON_FILES      ?= $(error PYTHON_FILES= required)
 
 ## -----------------------------------------------------------------------
-## Intent: Perform a lint check on makefile sources
+## Intent: Use the flake8 command to perform syntax checking.
+## Usage:
+##   % make lint
+##   % make lint-flake8-all
 ## -----------------------------------------------------------------------
-lint-python-flake8:
-	$(HIDE)$(env-clean) $(python-check-find) \
+ifndef NO-LINT-FLAKE8
+  lint-flake8-mode := $(if $(have-python-files),modified,all)
+  lint        : lint-flake8
+  lint-flake8 : lint-flake8-$(lint-flake8-mode)
+endif# NO-LINT-FLAKE8
+
+## -----------------------------------------------------------------------
+## Intent: exhaustive flake8 syntax checking
+## -----------------------------------------------------------------------
+# Construct: find . \( -name '__ignored__' -o -name dir -o name dir \)
+# flake8-find-filter := $(null)
+# flake8-find-filter += -name '__ignored__'#    # for alignment
+# flake8-find-filter += $(foreach dir,$(onf-excl-dirs),-o -name $(dir)))
+
+lint-flake8-all: $(venv-activate-script)
+	$(HIDE)$(MAKE) --no-print-directory lint-flake8-install
+
+	$(activate) && $(call gen-python-find-cmd) \
 	    | $(xargs-n1) flake8 --max-line-length=99 --count
 
+#  && find . \( $(flake8-find-filter) \) -prune -o -name '*.py' -print0 \
+# 	| $(xargs-n1) flake8 --max-line-length=99 --count
+
 ## -----------------------------------------------------------------------
-## Intent: Display command help
+## Intent: check deps for format and python3 cleanliness
+## Note:
+##   pylint --py3k option no longer supported
 ## -----------------------------------------------------------------------
-help-summary ::
-	@echo '  lint-python-flake8  Syntax check python sources (*.py)'
+lint-flake8-modified: $(venv-activate-script)
+	$(HIDE)$(MAKE) --no-print-directory lint-flake8-install
+
+	$(activate)\
+ && flake8 --max-line-length=99 --count $(PYTHON_FILES)
+
+## -----------------------------------------------------------------------
+## Intent:
+## -----------------------------------------------------------------------
+.PHONY: lint-flake8-install
+lint-flake8-install: $(venv-activate-script)
+	@echo
+	@echo "** -----------------------------------------------------------------------"
+	@echo "** python flake8 syntax checking"
+	@echo "** -----------------------------------------------------------------------"
+	$(activate) && pip install --upgrade flake8
+	$(activate) && flake8 --version
+	@echo
+
+## -----------------------------------------------------------------------
+## Intent: Display command usage
+## -----------------------------------------------------------------------
+help::
+	@echo '  lint-flake8          Syntax check python using the flake8 command'
+  ifdef VERBOSE
+	@echo '  $(MAKE) lint-pylint PYTHON_FILES=...'
+	@echo '  lint-flake8-modified  flake8 checking: only modified'
+	@echo '  lint-flake8-all       flake8 checking: exhaustive'
+	@echo '  lint-flake8-install   Install the flake8 command'
+  endif
+
+$(if $(DEBUG),$(warning LEAVE))
 
 # [EOF]
diff --git a/makefiles/lint/python/include.mk b/makefiles/lint/python/include.mk
index b052d84..57dfd8b 100644
--- a/makefiles/lint/python/include.mk
+++ b/makefiles/lint/python/include.mk
@@ -15,31 +15,17 @@
 # limitations under the License.
 # -----------------------------------------------------------------------
 
-ifndef mk-include--onf-lint-python#       # one-time loader
-
 $(if $(DEBUG),$(warning ENTER))
 
-## -----------------------------------------------------------------------
-## Intent: Display early so lint targets are grouped
-## -----------------------------------------------------------------------
-help ::
-#	@echo
-#	@echo '[PYTHON]'
-	@echo '  lint-python         Syntax check python sources (*.py)'
-#	@echo '  help-lint-python-flake8'
-#	@echo '  help-lint-python-pylint'
+##-------------------##
+##---]  GLOBALS  [---##
+##-------------------##
+$(if $(UNSTABLE),$(eval lint-python-all := true))
 
-## -----------------------------------------------------------------------
-## -----------------------------------------------------------------------
-  ifndef NO-LINT-PYTHON
-    include $(ONF_MAKEDIR)/lint/python/flake8.mk
-    include $(ONF_MAKEDIR)/lint/python/pylint.mk
-  endif
-
-  mk-include--onf-lint-python := true
+include $(ONF_MAKEDIR)/lint/python/find_utils.mk
+include $(ONF_MAKEDIR)/lint/python/flake8.mk
+include $(ONF_MAKEDIR)/lint/python/pylint.mk
 
 $(if $(DEBUG),$(warning LEAVE))
 
-endif # mk-include--onf-lint-license
-
 # [EOF]
diff --git a/makefiles/lint/python/pylint.mk b/makefiles/lint/python/pylint.mk
index 028f5dc..cf7e173 100644
--- a/makefiles/lint/python/pylint.mk
+++ b/makefiles/lint/python/pylint.mk
@@ -2,7 +2,7 @@
 # -----------------------------------------------------------------------
 # Copyright 2022-2024 Open Networking Foundation (ONF) and the ONF Contributors
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
+# 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
 #
@@ -15,40 +15,81 @@
 # limitations under the License.
 # -----------------------------------------------------------------------
 
+$(if $(DEBUG),$(warning ENTER))
+
 ##-------------------##
 ##---]  GLOBALS  [---##
 ##-------------------##
+.PHONY: lint-pylint lint-pylint-all lint-pylint-modified
 
-# Gather sources to check
-# TODO: implement deps, only check modified files
-python-check-find := find . -name '*venv*' -prune\
-  -o \( -name '*.py' \)\
-  -type f -print0
-
-# python-check    := $(env-clean) pylint
-python-check    := pylint
-
-# python-check-args += --dry-run
-
-##-------------------##
-##---]  TARGETS  [---##
-##-------------------##
-ifndef NO-LINT-PYTHON
-  lint        : lint-python-pylint
-  lint-python : lint-python-pylint
-endif
+PYTHON_FILES      ?= $(error PYTHON_FILES= required)
 
 ## -----------------------------------------------------------------------
-## Intent: Perform a lint check on makefile sources
+## Intent: Use the pylint command to perform syntax checking.
+##   o If UNSTABLE=1 syntax check all sources
+##   o else only check sources modified by the developer.
+## Usage:
+##   % make lint UNSTABLE=1
+##   % make lint-pylint-all
 ## -----------------------------------------------------------------------
-lint-python-pylint:
-	$(HIDE)$(env-clean) $(python-check-find) \
-	    | $(xargs-n1) $(python-check) $(python-check-args)
+ifndef NO-LINT-PYLINT
+  lint-pylint-mode := $(if $(have-python-files),modified,all)
+  lint        : lint-pylint
+  lint-pylint : lint-pylint-$(lint-pylint-mode)
+endif# NO-LINT-PYLINT
 
 ## -----------------------------------------------------------------------
-## Intent: Display command help
+## Intent: exhaustive pylint syntax checking
 ## -----------------------------------------------------------------------
-help-summary ::
-	@echo '  lint-python-pylint  Syntax check python sources (*.py)'
+
+# Construct: find . \( -name '__ignored__' -o -name dir -o name dir \)
+# pylint-find-filter := $(null)
+# pylint-find-filter += -name '__ignored__'#   # for alignment
+# pylint-find-filter += $(foreach dir,$(onf-excl-dirs),-o -name $(dir)))
+
+# pylint-find-filter := $(call gen-python-find-excl,onf-excl-dirs)
+# $(error pylint-find-filter := $(pylint-find-filter))
+lint-pylint-all: $(venv-activate-script)
+	$(MAKE) --no-print-directory lint-pylint-install
+
+	$(activate) && $(call gen-python-find-cmd) | $(xargs-n1) pylint
+#	    | $(xargs-n1-clean) yamllint --strict
+
+## -----------------------------------------------------------------------
+## Intent: check deps for format and python3 cleanliness
+## Note:
+##   pylint --py3k option no longer supported
+## -----------------------------------------------------------------------
+lint-pylint-modified: $(venv-activate-script)
+	$(MAKE) --no-print-directory lint-pylint-install
+
+	$(activate) && pylint $(PYTHON_FILES)
+
+## -----------------------------------------------------------------------
+## Intent:
+## -----------------------------------------------------------------------
+.PHONY: lint-pylint-install
+lint-pylint-install: $(venv-activate-script)
+	@echo
+	@echo "** -----------------------------------------------------------------------"
+	@echo "** python pylint syntax checking"
+	@echo "** -----------------------------------------------------------------------"
+	$(activate) && pip install --upgrade pylint
+	$(activate) && pylint --version
+	@echo
+
+## -----------------------------------------------------------------------
+## Intent: Display command usage
+## -----------------------------------------------------------------------
+help::
+	@echo '  lint-pylint          Syntax check python using the pylint command'
+  ifdef VERBOSE
+	@echo '  $(MAKE) lint-pylint PYTHON_FILES=...'
+	@echo '  lint-pylint-modified  pylint checking: only modified'
+	@echo '  lint-pylint-all       pylint checking: exhaustive'
+	@echo '  lint-pylint-install   Install the pylint command'
+  endif
+
+$(if $(DEBUG),$(warning LEAVE))
 
 # [EOF]
diff --git a/makefiles/lint/robot/include.mk b/makefiles/lint/robot/include.mk
new file mode 100644
index 0000000..283c729
--- /dev/null
+++ b/makefiles/lint/robot/include.mk
@@ -0,0 +1,65 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2017-2022 Open Networking Foundation
+#
+# 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.
+# -----------------------------------------------------------------------
+
+##-------------------##
+##---]  GLOBALS  [---##
+##-------------------##
+.PHONY: lint-robot lint-robot-all lint-robot-modified
+
+have-robot-files := $(if $(strip $(ROBOT_FILES)),true)
+ROBOT_FILES ?= $(error ROBOT_FILES= is required)
+
+## -----------------------------------------------------------------------
+## -----------------------------------------------------------------------
+ifndef NO-LINT-ROBOT
+  lint-robot-mode := $(if $(have-robot-files),modified,all)
+  lint : lint-robot-$(lint-robot-mode)
+endif# NO-LINT-ROBOT
+
+# Consistent targets across lint makefiles
+lint-robot-all      : lint-robot
+lint-robot-modified : lint-robot
+
+LINT_ARGS ?= --verbose --configure LineTooLong:130 -e LineTooLong \
+             --configure TooManyTestSteps:65 -e TooManyTestSteps \
+             --configure TooManyTestCases:50 -e TooManyTestCases \
+             --configure TooFewTestSteps:1 \
+             --configure TooFewKeywordSteps:1 \
+             --configure FileTooLong:2000 -e FileTooLong \
+             -e TrailingWhitespace
+
+## -----------------------------------------------------------------------
+## -----------------------------------------------------------------------
+lint-robot: $(venv-activate-script)
+	@echo
+	@echo '** -----------------------------------------------------------------------'
+	@echo '** robot *.rst syntax checking'
+	@echo '** -----------------------------------------------------------------------'
+#	$(activate) && rflint --version
+	$(activate) && rflint $(LINT_ARGS) $(ROBOT_FILES)
+
+## -----------------------------------------------------------------------
+## Intent: Display command usage
+## -----------------------------------------------------------------------
+help::
+	@echo '  lint-robot          Syntax check python using the robot command'
+  ifdef VERBOSE
+	@echo '  lint-robot-all       robot checking: exhaustive'
+	@echo '  lint-robot-modified  robot checking: only modified'
+  endif
+
+# [EOF]
diff --git a/makefiles/lint/shell.mk b/makefiles/lint/shell.mk
new file mode 100644
index 0000000..3c33bb2
--- /dev/null
+++ b/makefiles/lint/shell.mk
@@ -0,0 +1,65 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2022-2023 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.makefile.version = 1.0
+# -----------------------------------------------------------------------
+
+##-------------------##
+##---]  GLOBALS  [---##
+##-------------------##
+
+# Gather sources to check
+# TODO: implement deps, only check modified files
+shell-check-find := find .
+# vendor scripts but they really should be lintable
+shell-check-find += -name 'vendor' -prune
+shell-check-find += -o \( -name '*.sh' \)
+shell-check-find += -type f -print0
+
+shell-check    := $(env-clean) shellcheck
+# shell-check      := shellcheck
+
+shell-check-args += --check-sourced
+shell-check-args += --external-sources
+
+##-------------------##
+##---]  TARGETS  [---##
+##-------------------##
+ifndef NO-LINT-SHELL
+  lint : lint-shell
+endif
+
+## -----------------------------------------------------------------------
+## Intent: Perform a lint check on command line script sources
+## -----------------------------------------------------------------------
+lint-shell:
+	$(shell-check) -V
+	@echo
+	$(HIDE)$(env-clean) $(shell-check-find) \
+	    | $(xargs-n1) $(shell-check) $(shell-check-args)
+
+## -----------------------------------------------------------------------
+## Intent: Display command help
+## -----------------------------------------------------------------------
+help-summary ::
+	@echo '  lint-shell          Syntax check shell sources'
+
+# [SEE ALSO]
+# -----------------------------------------------------------------------
+#   o https://www.shellcheck.net/wiki/Directive
+
+# [EOF]
diff --git a/makefiles/lint/shellcheck/urls b/makefiles/lint/shellcheck/urls
new file mode 100644
index 0000000..a35dbab
--- /dev/null
+++ b/makefiles/lint/shellcheck/urls
@@ -0,0 +1,5 @@
+# -*- makefile -*-
+
+https://github.com/koalaman/shellcheck/releases/tag/v0.9.0
+
+# [EOF]
\ No newline at end of file
diff --git a/makefiles/lint/yaml./.yamllint b/makefiles/lint/yaml./.yamllint
new file mode 100644
index 0000000..c42c6d5
--- /dev/null
+++ b/makefiles/lint/yaml./.yamllint
@@ -0,0 +1,45 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2022-2023 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.
+#
+# SPDX-FileCopyrightText: 2022 Open Networking Foundation (ONF) and the ONF Contributors
+# SPDX-License-Identifier: Apache-2.0
+# -----------------------------------------------------------------------
+---
+
+yaml-files:
+  - '*.yaml'
+  - '*.yml'
+  - '.yamllint'
+
+rules:
+  document-start: disable
+  line-length:
+    max: 160
+
+# -----------------------------------------------------------------------
+# .. seealso: https://gerrit.opencord.org/plugins/gitiles/helm-repo-tools/+/refs/heads/master/yamllint.conf
+# -----------------------------------------------------------------------
+#
+# extends: default
+#
+#rules:
+#  empty-lines:
+#    max-end: 1
+#  line-length:
+#    max: 120
+#  braces:
+#    min-spaces-inside: 0
+#    max-spaces-inside: 1
diff --git a/makefiles/lint/yaml./byrepo/voltha-lib-go/include.mk b/makefiles/lint/yaml./byrepo/voltha-lib-go/include.mk
new file mode 100644
index 0000000..6cbd0ea
--- /dev/null
+++ b/makefiles/lint/yaml./byrepo/voltha-lib-go/include.mk
@@ -0,0 +1,27 @@
+# -*- 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.
+# -----------------------------------------------------------------------
+
+$(if $(DEBUG),$(warning ENTER))
+
+##--------------------##
+##---]  INCLUDES  [---##
+##--------------------##
+include $(ONF_MAKEDIR)/lint/yaml/byrepo/$(--repo-name--)/yamllint.mk
+
+$(if $(DEBUG),$(warning LEAVE))
+
+# [EOF]
diff --git a/makefiles/lint/yaml./byrepo/voltha-lib-go/python.mk b/makefiles/lint/yaml./byrepo/voltha-lib-go/python.mk
new file mode 100644
index 0000000..cf0eef5
--- /dev/null
+++ b/makefiles/lint/yaml./byrepo/voltha-lib-go/python.mk
@@ -0,0 +1,41 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2022-2023 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.
+#
+# SPDX-FileCopyrightText: 2022 Open Networking Foundation (ONF) and the ONF Contributors
+# SPDX-License-Identifier: Apache-2.0
+# -----------------------------------------------------------------------
+
+YAML_FILES ?= $(error YAML_FILES= is required)
+
+lint-yaml-dep = $(addsuffix ^lint-yaml,$(YAML_FILES))
+lint-yaml-src = $(firstword $(subst ^,$(space),$(1)))
+
+##-------------------##
+##---]  TARGETS  [---##
+##-------------------##
+.PHONY : lint-yaml
+lint   : lint-yaml
+
+lint-yaml: $(venv-activate)
+lint-yaml: $(lint-yaml-dep)
+
+$(lint-yaml-dep):
+	$(vst-env) && yamllint -s $(call lint-yaml-src,$@)
+
+help::
+	@echo "  lint-yaml            Syntax check yaml sources"
+
+# [EOF]
diff --git a/makefiles/lint/yaml./byrepo/voltha-lib-go/repo b/makefiles/lint/yaml./byrepo/voltha-lib-go/repo
new file mode 100644
index 0000000..99e8451
--- /dev/null
+++ b/makefiles/lint/yaml./byrepo/voltha-lib-go/repo
@@ -0,0 +1 @@
+Source from voltha-lib-go
\ No newline at end of file
diff --git a/makefiles/lint/yaml./byrepo/voltha-lib-go/todo b/makefiles/lint/yaml./byrepo/voltha-lib-go/todo
new file mode 100644
index 0000000..8400c64
--- /dev/null
+++ b/makefiles/lint/yaml./byrepo/voltha-lib-go/todo
@@ -0,0 +1,39 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2022-2023 Open Networking Foundation (ONF) and the ONF Contributors
+# -----------------------------------------------------------------------
+
+##-------------------##
+##---]  GLOBALS  [---##
+##-------------------##
+env-clean = /usr/bin/env --ignore-environment
+xargs-n1      := xargs -0 -t -n1 --no-run-if-empty
+
+yamllint      := $(env-clean) $(YAMLLINT)
+yamllint-args := -c .yamllint
+
+##-------------------##
+##---]  TARGETS  [---##
+##-------------------##
+lint : lint-yaml
+
+## -----------------------------------------------------------------------
+## -----------------------------------------------------------------------
+lint-yaml:
+	$(HIDE)$(env-clean) find . -name '*.yaml' -type f -print0 \
+	    | $(xargs-n1) $(yamllint) $(yamllint-args)
+
+## -----------------------------------------------------------------------
+## -----------------------------------------------------------------------
+help:
+	@echo
+	@echo "USAGE: $(MAKE)"
+	@echo "  lint        perform syntax checks on source"
+	@echo "  test        perform syntax checks on source"
+	@echo "  pre-check   Verify tools and deps are available for testing"
+	@echo
+	@echo "[LINT]"
+	@echo "  lint-json   Syntax check .json sources"
+	@echo "  lint-yaml   Syntax check .yaml sources"
+	@echo
+# [EOF]
diff --git a/makefiles/lint/yaml./byrepo/voltha-lib-go/urls b/makefiles/lint/yaml./byrepo/voltha-lib-go/urls
new file mode 100644
index 0000000..8747658
--- /dev/null
+++ b/makefiles/lint/yaml./byrepo/voltha-lib-go/urls
@@ -0,0 +1,5 @@
+# -*- makefile -*-
+
+https://yamllint.readthedocs.io/en/stable/configuration.html
+
+# [EOF]
\ No newline at end of file
diff --git a/makefiles/lint/yaml./byrepo/voltha-lib-go/yamllint.helm b/makefiles/lint/yaml./byrepo/voltha-lib-go/yamllint.helm
new file mode 100644
index 0000000..bf1d2b9
--- /dev/null
+++ b/makefiles/lint/yaml./byrepo/voltha-lib-go/yamllint.helm
@@ -0,0 +1,32 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2022-2023 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.
+#
+# SPDX-FileCopyrightText: 2022 Open Networking Foundation (ONF) and the ONF Contributors
+# SPDX-License-Identifier: Apache-2.0
+# -----------------------------------------------------------------------
+---
+# yamllint.conf
+
+extends: default
+
+rules:
+  empty-lines:
+    max-end: 1
+  line-length:
+    max: 120
+  braces:
+    min-spaces-inside: 0
+    max-spaces-inside: 1
diff --git a/makefiles/lint/yaml./byrepo/voltha-lib-go/yamllint.mk b/makefiles/lint/yaml./byrepo/voltha-lib-go/yamllint.mk
new file mode 100644
index 0000000..fb56e3a
--- /dev/null
+++ b/makefiles/lint/yaml./byrepo/voltha-lib-go/yamllint.mk
@@ -0,0 +1,72 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2022-2023 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.
+#
+# SPDX-FileCopyrightText: 2022 Open Networking Foundation (ONF) and the ONF Contributors
+# SPDX-License-Identifier: Apache-2.0
+# -----------------------------------------------------------------------
+
+$(if $(DEBUG),$(warning ENTER))
+
+--onf-mk-lint-yaml-- := true#       # Inhibit loading downstream lint-yaml targets
+
+# yamllint      := $(env-clean) yamllint
+# yamllint      := $(activate) && yamllint
+
+YAMLLINT = $(activate) && yamllint
+
+## -------------------------------
+## Add requirement(s) for checking
+## -------------------------------
+yamllint-cfg  := yamllint.helm
+yamllint-conf = $(wildcard $(yamllint-cfg) $(ONF_MAKEDIR)/lint/yaml/$(yamllint-cfg))
+yamllint-args += $(addprefix --config-file$(space),$(yamllint-conf))
+yamllint-args += --strict
+
+## -----------------------------------------------------------------------
+## Intent: Use the yaml command to perform syntax checking.
+## -----------------------------------------------------------------------
+ifndef NO-LINT-YAML
+  # lint-yaml-mode := $(if $(have-yaml-files),modified,all)
+  lint      : lint-yaml
+  lint-yaml : lint-yaml-votlha-lib-go
+#  lint-yaml : lint-yaml-all-votlha-lib-go-$(lint-yaml-mode)
+endif# NO-LINT-YAML
+
+## -----------------------------------------------------------------------
+## ----------------------------------------------------------------------
+lint-yaml-votlha-lib-go: lint-yaml-cmd-version
+
+	$(call banner-enter,Target $@)
+	$(HIDE)$(MAKE) --no-print-directory lint-yaml-install
+
+	$(HIDE)$(env-clean) $(call gen-yaml-find-cmd) \
+	    | $(env-clean) $(xargs-cmd) -I'{}' \
+		bash -c "$(YAMLLINT) $(yamllint-args) {}"
+	$(call banner-leave,Target $@)
+
+## -----------------------------------------------------------------------
+## Intent: Display command usage
+## -----------------------------------------------------------------------
+help::
+  # lint-yaml help already displayed by lint/yaml/help.mk
+  ifdef VERBOSE
+	@echo '  $(MAKE) lint-yaml YAML_FILES=...'
+	@echo '  lint-yaml-votlha-lib-go   lint-yaml for repo:voltha-lib-go'
+  endif
+
+$(if $(DEBUG),$(warning LEAVE))
+
+# [EOF]
diff --git a/makefiles/lint/yaml./find_utils.mk b/makefiles/lint/yaml./find_utils.mk
new file mode 100644
index 0000000..49d4cb0
--- /dev/null
+++ b/makefiles/lint/yaml./find_utils.mk
@@ -0,0 +1,32 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Intent:
+#   o Construct a find command able to gather python files with filtering.
+#   o Used by library makefiles flake8.mk and pylint.mk for iteration.
+# -----------------------------------------------------------------------
+
+## -----------------------------------------------------------------------
+## Intent: Construct a string for invoking find \( excl-pattern \) -prune
+# -----------------------------------------------------------------------
+gen-yaml-find-excl = \
+  $(strip \
+	-name '__ignored__' \
+	$(foreach dir,$($(1)),-o -name $(dir)) \
+  )
+
+## -----------------------------------------------------------------------
+## Intent: Construct a find command to gather a list of python files
+##         with exclusions.
+## -----------------------------------------------------------------------
+## Usage:
+#	$(activate) & $(call gen-python-find-cmd) | $(args-n1) pylint
+## -----------------------------------------------------------------------
+gen-yaml-find-cmd = \
+  $(strip \
+    find . \
+      \( $(call gen-yaml-find-excl,onf-excl-dirs) \) -prune \
+      -o \( -iname '*.yaml' -o -iname '*.yml' \) \
+      -print0 \
+  )
+
+# [EOF]
diff --git a/makefiles/lint/yaml./help.mk b/makefiles/lint/yaml./help.mk
new file mode 100644
index 0000000..ef8621e
--- /dev/null
+++ b/makefiles/lint/yaml./help.mk
@@ -0,0 +1,41 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2017-2023 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.
+# -----------------------------------------------------------------------
+
+$(if $(DEBUG),$(warning ENTER))
+
+## ---------------------------------------------------------------------------
+## Intent: Display a help banner early so includes below that also define
+##         help targets will be displayed beneath a high level banner.
+## ---------------------------------------------------------------------------
+help ::
+  ifndef VERBOSE
+	@echo '  lint-yaml          Invoke all yaml linting targets'
+  else
+	$(HIDE)$(MAKE) --no-print-directory help-lint-yaml
+  endif
+
+## ---------------------------------------------------------------------------
+## Intent: Display extended target help
+## ---------------------------------------------------------------------------
+help-lint-yaml:
+	@echo
+	@echo '[LINT: yaml]   (make lint-yaml VERBOSE=1)'
+	@echo '  lint-yaml          Invoke all yaml linting targets'
+
+$(if $(DEBUG),$(warning LEAVE))
+
+# [EOF]
diff --git a/makefiles/lint/yaml./include.mk b/makefiles/lint/yaml./include.mk
new file mode 100644
index 0000000..26c4a7f
--- /dev/null
+++ b/makefiles/lint/yaml./include.mk
@@ -0,0 +1,42 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2017-2023 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.
+# -----------------------------------------------------------------------
+
+ifndef --onf-mk-lint-yaml--
+
+$(if $(DEBUG),$(warning ENTER))
+
+##--------------------##
+##---]  INCLUDES  [---##
+##--------------------##
+include $(ONF_MAKEDIR)/lint/yaml/help.mk
+include $(ONF_MAKEDIR)/lint/yaml/find_utils.mk
+include $(ONF_MAKEDIR)/lint/yaml/install.mk
+
+# [TODO] Consolidate and refactor to support a simpler answer
+# Special snowflake linting requirements
+-include $(ONF_MAKEDIR)/lint/yaml/byrepo/$(--repo-name--)/include.mk
+
+# Standard lint-yaml targets
+include $(ONF_MAKEDIR)/lint/yaml/yamllint.mk
+
+--onf-mk-lint-yaml-- := true#        # Flag to inhibit re-including
+
+$(if $(DEBUG),$(warning LEAVE))
+
+endif # --onf-mk-lint-yaml--
+
+# [EOF]
diff --git a/makefiles/lint/yaml./install.mk b/makefiles/lint/yaml./install.mk
new file mode 100644
index 0000000..a17c3b7
--- /dev/null
+++ b/makefiles/lint/yaml./install.mk
@@ -0,0 +1,69 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2022-2023 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.
+#
+# SPDX-FileCopyrightText: 2022 Open Networking Foundation (ONF) and the ONF Contributors
+# SPDX-License-Identifier: Apache-2.0
+# -----------------------------------------------------------------------
+
+$(if $(DEBUG),$(warning ENTER))
+
+## -----------------------------------------------------------------------
+## Intent: Install the yamllint tool
+## -----------------------------------------------------------------------
+.PHONY: lint-yaml-install
+
+# -----------------------------------------------------------------------
+# We can(/should?) define a command macro
+# wait a bit until use cases are better known.
+# Initial use required inserting xargs bash -c "$(YAMLLINT) {}"
+# -----------------------------------------------------------------------
+# YAMLLINT ?= $(venv-activate-bin)/yamllint
+# YAMLLINT ?= $(activate) && yamllint
+
+## -----------------------------------------------------------------------
+## Intent: Display yamllint command version string.
+##   Note: As a side effect, install yamllint by dependency
+## -----------------------------------------------------------------------
+.PHONY: lint-yaml-cmd-version
+lint-yaml-cmd-version : $(venv-activate-bin)/yamllint
+
+	$(HIDE) echo
+	$< --version
+
+## -----------------------------------------------------------------------
+## Intent: On-demand instalation of the yamllint command
+## -----------------------------------------------------------------------
+lint-yaml-install := $(venv-activate-bin)/yamllint
+$(lint-yaml-install) : $(venv-activate-script)
+
+	$(call banner-enter,Target $@)
+	$(activate) && pip install yamllint
+	$(call banner-leave,Target $@)
+
+## -----------------------------------------------------------------------
+## Intent: Purge yamllint tool installation
+## -----------------------------------------------------------------------
+sterile ::
+	$(HIDE)$(RM) "$(venv-abs-bin)/yamllint"
+	$(HIDE)$(RM) -r .venv/lib/*/site-packages/yamllint
+
+## -----------------------------------------------------------------------
+## Intent: Display command usage
+## -----------------------------------------------------------------------
+help::
+	@echo '  lint-yaml-install       Install the yamllint tool'
+
+# [EOF]
diff --git a/makefiles/lint/yaml./yamllint.mk b/makefiles/lint/yaml./yamllint.mk
new file mode 100644
index 0000000..1563c7c
--- /dev/null
+++ b/makefiles/lint/yaml./yamllint.mk
@@ -0,0 +1,78 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2017-2023 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.
+# -----------------------------------------------------------------------
+
+$(if $(DEBUG),$(warning ENTER))
+
+##-------------------##
+##---]  GLOBALS  [---##
+##-------------------##
+.PHONY: lint-yaml lint-yaml-all lint-yaml-modified
+
+have-yaml-files := $(if $(strip $(YAML_FILES)),true)
+YAML_FILES      ?= $(error YAML_FILES= is required)
+
+YAMLLINT = $(activate) && yamllint
+yamllint-args += --strict
+
+## -----------------------------------------------------------------------
+## Intent: Use the yaml command to perform syntax checking.
+## -----------------------------------------------------------------------
+ifndef NO-LINT-YAML
+  lint-yaml-mode := $(if $(have-yaml-files),modified,all)
+  lint      : lint-yaml
+  lint-yaml : lint-yaml-$(lint-yaml-mode)
+endif# NO-LINT-YAML
+
+## -----------------------------------------------------------------------
+## Intent: exhaustive yaml syntax checking
+## -----------------------------------------------------------------------
+lint-yaml-all: lint-yaml-cmd-version
+
+	$(call banner-enter,Target $@)
+	$(HIDE)$(MAKE) --no-print-directory lint-yaml-install
+	$(HIDE)$(activate) && $(call gen-yaml-find-cmd) \
+	    | $(env-clean) $(xargs-cmd) -I'{}' \
+		bash -c "$(YAMLLINT) $(yamllint-args) {}"
+	$(call banner-leave,Target $@)
+
+## -----------------------------------------------------------------------
+## Intent: check deps for format and python3 cleanliness
+## Note:
+##   yaml --py3k option no longer supported
+## -----------------------------------------------------------------------
+lint-yaml-modified: lint-yaml-cmd-version
+
+	$(call banner-enter,Target $@)
+	$(HIDE)$(MAKE) --no-print-directory lint-yaml-install
+	$(YAMLLINT) $(yamllint-args) $(YAML_FILES)
+	$(call banner-leave,Target $@)
+
+## -----------------------------------------------------------------------
+## Intent: Display command usage
+## -----------------------------------------------------------------------
+help::
+	@echo '  lint-yaml          Syntax check python using the yaml command'
+  ifdef VERBOSE
+	@echo '  $(MAKE) lint-yaml YAML_FILES=...'
+	@echo '  lint-yaml-all       yaml checking: exhaustive'
+	@echo '  lint-yaml-modified  yaml checking: only locally modified'
+	@echo '  lint-yaml-install   Install the pylint command'
+  endif
+
+$(if $(DEBUG),$(warning LEAVE))
+
+# [EOF]
diff --git a/makefiles/lint/yaml.mk b/makefiles/lint/yaml.mk
new file mode 100644
index 0000000..ab5b9d6
--- /dev/null
+++ b/makefiles/lint/yaml.mk
@@ -0,0 +1,84 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2017-2023 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.
+# -----------------------------------------------------------------------
+
+$(if $(DEBUG),$(warning ENTER))
+
+##-------------------##
+##---]  GLOBALS  [---##
+##-------------------##
+.PHONY: lint-yaml lint-yaml-all lint-yaml-modified
+
+have-yaml-files := $(if $(strip $(YAML_FILES)),true)
+YAML_FILES      ?= $(error YAML_FILES= is required)
+
+## -----------------------------------------------------------------------
+## Intent: Use the yaml command to perform syntax checking.
+##   o If UNSTABLE=1 syntax check all sources
+##   o else only check sources modified by the developer.
+## Usage:
+##   % make lint UNSTABLE=1
+##   % make lint-yaml-all
+## -----------------------------------------------------------------------
+lint-yaml-mode := $(if $(have-yaml-files),modified,all)
+lint-yaml : lint-yaml-$(lint-yaml-mode)
+
+ifndef NO-LINT-YAML
+  lint : lint-yaml#     # Enable as a default lint target
+endif# NO-LINT-YAML
+
+## -----------------------------------------------------------------------
+## Intent: exhaustive yaml syntax checking
+## -----------------------------------------------------------------------
+lint-yaml-all:
+	$(HIDE)$(MAKE) --no-print-directory lint-yaml-install
+
+	find . \( -iname '*.yaml' -o -iname '*.yml' \) -print0 \
+	    | $(xargs-n1-clean) yamllint --strict
+
+## -----------------------------------------------------------------------
+## Intent: check deps for format and python3 cleanliness
+## Note:
+##   yaml --py3k option no longer supported
+## -----------------------------------------------------------------------
+lint-yaml-modified:
+	$(HIDE)$(MAKE) --no-print-directory lint-yaml-install
+	yamllint -s $(YAML_FILES)
+
+## -----------------------------------------------------------------------
+## Intent:
+## -----------------------------------------------------------------------
+lint-yaml-install:
+	@echo
+	@echo "** -----------------------------------------------------------------------"
+	@echo "** yaml syntax checking"
+	@echo "** -----------------------------------------------------------------------"
+	yamllint --version
+	@echo
+
+## -----------------------------------------------------------------------
+## Intent: Display command usage
+## -----------------------------------------------------------------------
+help::
+	@echo '  lint-yaml          Syntax check python using the yaml command'
+  ifdef VERBOSE
+	@echo '  lint-yaml-all       yaml checking: exhaustive'
+	@echo '  lint-yaml-modified  yaml checking: only locally modified'
+  endif
+
+$(if $(DEBUG),$(warning LEAVE))
+
+# [EOF]
diff --git a/makefiles/lint/yaml/install.mk b/makefiles/lint/yaml/install.mk
index edcc212..19e8628 100644
--- a/makefiles/lint/yaml/install.mk
+++ b/makefiles/lint/yaml/install.mk
@@ -60,6 +60,10 @@
 	$(HIDE)$(RM) "$(venv-abs-bin)/yamllint"
 	$(HIDE)$(RM) -r .venv/lib/*/site-packages/yamllint
 
+        # Remove both file:command and dir:libraries
+        # find "$(venv-abs-path)" -iname 'yamllint' -print0 \
+        #    | $(xargs-n1-clean) $(RM) -r {}
+
 ## -----------------------------------------------------------------------
 ## Intent: Display command usage
 ## -----------------------------------------------------------------------