diff --git a/docker/Keystone/Dockerfile b/docker/Keystone/Dockerfile
index e81a7b5..9c0dc1e 100644
--- a/docker/Keystone/Dockerfile
+++ b/docker/Keystone/Dockerfile
@@ -1,23 +1,27 @@
-# Copyright 2021 Whitestack, LLC
+#######################################################################################
+# Copyright ETSI Contributors and Others.
 #
-# 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
+# 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
+#    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.
-#
-# For those usages not covered by the Apache License, Version 2.0 please
-# contact: fbravo@whitestack.com or glavado@whitestack.com
-##
-
+# 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.
+#######################################################################################
 FROM ubuntu:20.04
 
+ARG APT_PROXY
+RUN if [ ! -z $APT_PROXY ] ; then \
+    echo "Acquire::http::Proxy \"$APT_PROXY\";" > /etc/apt/apt.conf.d/proxy.conf ;\
+    echo "Acquire::https::Proxy \"$APT_PROXY\";" >> /etc/apt/apt.conf.d/proxy.conf ;\
+    fi
+
 EXPOSE 5000
 
 WORKDIR /keystone
diff --git a/docker/LCM/Dockerfile b/docker/LCM/Dockerfile
index 370f1fe..15cf65a 100644
--- a/docker/LCM/Dockerfile
+++ b/docker/LCM/Dockerfile
@@ -1,23 +1,28 @@
-##
-# Copyright 2019 ETSI
+#######################################################################################
+# Copyright ETSI Contributors and Others.
 #
-# 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
+# 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
+#    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.
-##
-
-########################################################################
+# 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.
+#######################################################################################
 
 FROM ubuntu:18.04 as INSTALL
 
+ARG APT_PROXY
+RUN if [ ! -z $APT_PROXY ] ; then \
+    echo "Acquire::http::Proxy \"$APT_PROXY\";" > /etc/apt/apt.conf.d/proxy.conf ;\
+    echo "Acquire::https::Proxy \"$APT_PROXY\";" >> /etc/apt/apt.conf.d/proxy.conf ;\
+    fi
+
 RUN DEBIAN_FRONTEND=noninteractive apt-get --yes update && \
     DEBIAN_FRONTEND=noninteractive apt-get --yes install \
     gcc=4:7.4.* \
diff --git a/docker/MON/Dockerfile b/docker/MON/Dockerfile
index a9b95fc..adb736a 100644
--- a/docker/MON/Dockerfile
+++ b/docker/MON/Dockerfile
@@ -1,27 +1,28 @@
-# Copyright 2018 Whitestack, LLC
-# *************************************************************
-
-# This file is part of OSM Monitoring module
-# All Rights Reserved to Whitestack, LLC
-
-# 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
-
+#######################################################################################
+# Copyright ETSI Contributors and Others.
+#
+# 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.
-
-# For those usages not covered by the Apache License, Version 2.0 please
-# contact: bdiaz@whitestack.com or glavado@whitestack.com
-##
+# 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.
+#######################################################################################
 
 FROM ubuntu:20.04 as INSTALL
 
+ARG APT_PROXY
+RUN if [ ! -z $APT_PROXY ] ; then \
+    echo "Acquire::http::Proxy \"$APT_PROXY\";" > /etc/apt/apt.conf.d/proxy.conf ;\
+    echo "Acquire::https::Proxy \"$APT_PROXY\";" >> /etc/apt/apt.conf.d/proxy.conf ;\
+    fi
+
 RUN DEBIAN_FRONTEND=noninteractive apt-get --yes update && \
     DEBIAN_FRONTEND=noninteractive apt-get --yes install \
     curl=7.68.* \
diff --git a/docker/NBI/Dockerfile b/docker/NBI/Dockerfile
index 2e69264..3c4a7f1 100644
--- a/docker/NBI/Dockerfile
+++ b/docker/NBI/Dockerfile
@@ -1,23 +1,28 @@
-##
-# Copyright 2019 ETSI
+#######################################################################################
+# Copyright ETSI Contributors and Others.
 #
-# 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
+# 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
+#    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.
-##
-
-########################################################################
+# 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.
+#######################################################################################
 
 FROM ubuntu:18.04 as INSTALL
 
+ARG APT_PROXY
+RUN if [ ! -z $APT_PROXY ] ; then \
+    echo "Acquire::http::Proxy \"$APT_PROXY\";" > /etc/apt/apt.conf.d/proxy.conf ;\
+    echo "Acquire::https::Proxy \"$APT_PROXY\";" >> /etc/apt/apt.conf.d/proxy.conf ;\
+    fi
+
 RUN DEBIAN_FRONTEND=noninteractive apt-get --yes update && \
     DEBIAN_FRONTEND=noninteractive apt-get --yes install \
     gcc=4:7.4.* \
diff --git a/docker/NG-UI/Dockerfile b/docker/NG-UI/Dockerfile
index 53ec2a9..8350034 100644
--- a/docker/NG-UI/Dockerfile
+++ b/docker/NG-UI/Dockerfile
@@ -1,4 +1,5 @@
-# Copyright 2020 ETSI
+#######################################################################################
+# Copyright ETSI Contributors and Others.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -12,9 +13,16 @@
 # implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+#######################################################################################
 
 FROM ubuntu:18.04 AS BUILD
 
+ARG APT_PROXY
+RUN if [ ! -z $APT_PROXY ] ; then \
+    echo "Acquire::http::Proxy \"$APT_PROXY\";" > /etc/apt/apt.conf.d/proxy.conf ;\
+    echo "Acquire::https::Proxy \"$APT_PROXY\";" >> /etc/apt/apt.conf.d/proxy.conf ;\
+    fi
+
 RUN DEBIAN_FRONTEND=noninteractive apt-get --yes update && \
     DEBIAN_FRONTEND=noninteractive apt-get --yes install \
     apt-transport-https=1.6.* \
diff --git a/docker/PLA/Dockerfile b/docker/PLA/Dockerfile
index b673cb0..dde6a37 100644
--- a/docker/PLA/Dockerfile
+++ b/docker/PLA/Dockerfile
@@ -1,4 +1,5 @@
-# Copyright 2020 Arctos Labs Scandinavia AB
+#######################################################################################
+# Copyright ETSI Contributors and Others.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -12,9 +13,16 @@
 # implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+#######################################################################################
 
 FROM ubuntu:18.04 as INSTALL
 
+ARG APT_PROXY
+RUN if [ ! -z $APT_PROXY ] ; then \
+    echo "Acquire::http::Proxy \"$APT_PROXY\";" > /etc/apt/apt.conf.d/proxy.conf ;\
+    echo "Acquire::https::Proxy \"$APT_PROXY\";" >> /etc/apt/apt.conf.d/proxy.conf ;\
+    fi
+
 RUN DEBIAN_FRONTEND=noninteractive apt-get --yes update && \
     DEBIAN_FRONTEND=noninteractive apt-get --yes install \
     gcc=4:7.4.* \
diff --git a/docker/POL/Dockerfile b/docker/POL/Dockerfile
index ee456ca..0046183 100644
--- a/docker/POL/Dockerfile
+++ b/docker/POL/Dockerfile
@@ -1,27 +1,28 @@
-# Copyright 2018 Whitestack, LLC
-# *************************************************************
-
-# This file is part of OSM Monitoring module
-# All Rights Reserved to Whitestack, LLC
-
-# 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
-
+#######################################################################################
+# Copyright ETSI Contributors and Others.
+#
+# 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.
-
-# For those usages not covered by the Apache License, Version 2.0 please
-# contact: bdiaz@whitestack.com or glavado@whitestack.com
-##
+# 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.
+#######################################################################################
 
 FROM ubuntu:20.04 as INSTALL
 
+ARG APT_PROXY
+RUN if [ ! -z $APT_PROXY ] ; then \
+    echo "Acquire::http::Proxy \"$APT_PROXY\";" > /etc/apt/apt.conf.d/proxy.conf ;\
+    echo "Acquire::https::Proxy \"$APT_PROXY\";" >> /etc/apt/apt.conf.d/proxy.conf ;\
+    fi
+
 RUN DEBIAN_FRONTEND=noninteractive apt-get --yes update && \
     DEBIAN_FRONTEND=noninteractive apt-get --yes install \
     curl=7.68.* \
diff --git a/docker/Prometheus/Dockerfile b/docker/Prometheus/Dockerfile
index b32a95d..7c84207 100644
--- a/docker/Prometheus/Dockerfile
+++ b/docker/Prometheus/Dockerfile
@@ -1,24 +1,19 @@
-# Copyright 2020 Whitestack, LLC
-# *************************************************************
-
-# This file is part of OSM Monitoring module
-# All Rights Reserved to Whitestack, LLC
-
-# 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
-
+#######################################################################################
+# Copyright ETSI Contributors and Others.
+#
+# 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.
-
-# For those usages not covered by the Apache License, Version 2.0 please
-# contact: fbravo@whitestack.com or glavado@whitestack.com
-##
+# 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.
+#######################################################################################
 
 FROM python:3.8
 
diff --git a/docker/RO/Dockerfile b/docker/RO/Dockerfile
index 39462de..b2f32a4 100644
--- a/docker/RO/Dockerfile
+++ b/docker/RO/Dockerfile
@@ -1,23 +1,28 @@
-##
-# Copyright 2019 ETSI
+#######################################################################################
+# Copyright ETSI Contributors and Others.
 #
-# 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
+# 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
+#    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.
-##
-
-########################################################################
+# 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.
+#######################################################################################
 
 FROM ubuntu:18.04 as INSTALL
 
+ARG APT_PROXY
+RUN if [ ! -z $APT_PROXY ] ; then \
+    echo "Acquire::http::Proxy \"$APT_PROXY\";" > /etc/apt/apt.conf.d/proxy.conf ;\
+    echo "Acquire::https::Proxy \"$APT_PROXY\";" >> /etc/apt/apt.conf.d/proxy.conf ;\
+    fi
+
 RUN DEBIAN_FRONTEND=noninteractive apt-get --yes update && \
     DEBIAN_FRONTEND=noninteractive apt-get --yes install \
     gcc=4:7.4.* \
diff --git a/docker/osmclient/Dockerfile b/docker/osmclient/Dockerfile
index 299990a..49b01f3 100644
--- a/docker/osmclient/Dockerfile
+++ b/docker/osmclient/Dockerfile
@@ -17,6 +17,12 @@
 
 FROM ubuntu:18.04 as INSTALL
 
+ARG APT_PROXY
+RUN if [ ! -z $APT_PROXY ] ; then \
+    echo "Acquire::http::Proxy \"$APT_PROXY\";" > /etc/apt/apt.conf.d/proxy.conf ;\
+    echo "Acquire::https::Proxy \"$APT_PROXY\";" >> /etc/apt/apt.conf.d/proxy.conf ;\
+    fi
+
 RUN DEBIAN_FRONTEND=noninteractive apt-get --yes update && \
     DEBIAN_FRONTEND=noninteractive apt-get --yes install \
     gcc=4:7.4.* \
diff --git a/docker/tests/Dockerfile b/docker/tests/Dockerfile
index 4874ef1..4f7ef7c 100644
--- a/docker/tests/Dockerfile
+++ b/docker/tests/Dockerfile
@@ -1,4 +1,5 @@
-# Copyright 2020 ETSI
+#######################################################################################
+# Copyright ETSI Contributors and Others.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -12,11 +13,16 @@
 # implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-
-########################################################################
+#######################################################################################
 
 FROM ubuntu:18.04 as INSTALL
 
+ARG APT_PROXY
+RUN if [ ! -z $APT_PROXY ] ; then \
+    echo "Acquire::http::Proxy \"$APT_PROXY\";" > /etc/apt/apt.conf.d/proxy.conf ;\
+    echo "Acquire::https::Proxy \"$APT_PROXY\";" >> /etc/apt/apt.conf.d/proxy.conf ;\
+    fi
+
 RUN DEBIAN_FRONTEND=noninteractive apt-get --yes update && \
     DEBIAN_FRONTEND=noninteractive apt-get --yes install \
     gcc=4:7.4.* \
diff --git a/jenkins/ci-pipelines/ci_stage_2.groovy b/jenkins/ci-pipelines/ci_stage_2.groovy
index dd9cc9b..5c2267c 100644
--- a/jenkins/ci-pipelines/ci_stage_2.groovy
+++ b/jenkins/ci-pipelines/ci_stage_2.groovy
@@ -52,7 +52,8 @@
     container_name = "${project}-${branch}".toLowerCase()
 
     stage('Docker-Build') {
-        sh "docker build -t ${container_name} ."
+        APT_PROXY = "http://172.21.1.1:3142"
+        sh "docker build --build-arg APT_PROXY=${APT_PROXY} -t ${container_name} ."
     }
 
     UID = sh(returnStdout:true,  script: 'id -u').trim()
diff --git a/jenkins/ci-pipelines/ci_stage_3.groovy b/jenkins/ci-pipelines/ci_stage_3.groovy
index cd7cc8e..0dbeb7d 100644
--- a/jenkins/ci-pipelines/ci_stage_3.groovy
+++ b/jenkins/ci-pipelines/ci_stage_3.groovy
@@ -161,6 +161,7 @@
 
     INTERNAL_DOCKER_REGISTRY = 'osm.etsi.org:5050/devops/cicd/'
     INTERNAL_DOCKER_PROXY = 'http://172.21.1.1:5000'
+    APT_PROXY="http://172.21.1.1:3142"
     SSH_KEY = '~/hive/cicd_rsa'
     sh 'env'
 
@@ -341,7 +342,7 @@
                             def moduleTag = container_name
                             parallelSteps[module] = {
                                 dir("$module") {
-                                    sh "docker build -t opensourcemano/${moduleName}:${moduleTag} ${moduleBuildArgs} ."
+                                    sh "docker build --build-arg APT_PROXY=${APT_PROXY} -t opensourcemano/${moduleName}:${moduleTag} ${moduleBuildArgs} ."
                                     println("Tagging ${moduleName}:${moduleTag}")
                                     sh "docker tag opensourcemano/${moduleName}:${moduleTag} ${INTERNAL_DOCKER_REGISTRY}opensourcemano/${moduleName}:${moduleTag}"
                                     sh "docker push ${INTERNAL_DOCKER_REGISTRY}opensourcemano/${moduleName}:${moduleTag}"
diff --git a/tools/local-build.sh b/tools/local-build.sh
index 0898518..9c40272 100755
--- a/tools/local-build.sh
+++ b/tools/local-build.sh
@@ -16,6 +16,7 @@
 # limitations under the License.
 #######################################################################################
 
+APT_PROXY=""
 DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )"
 HTTPDDIR="$( cd "${HOME}/snap/qhttp/common" &> /dev/null && pwd )"
 HTTPPORT=8000
@@ -30,6 +31,7 @@
     while [ $# -gt 0 ] ; do
         case $1 in
             --debug) set -x ;;
+            --apt-proxy) APT_PROXY="$2" && shift ;;
             --help | -h) show_help && exit 0 ;;
             --httpddir) HTTPDIR="$2" && shift;;
             --install-local-registry) 'install_local_registry' ;;
@@ -67,8 +69,9 @@
 
 OPTIONS:
   --help                        display this help message
+  --apt-proxy                   provide an apt proxy to docker build steps
   --debug                       enable set -x for this script
-  --install-local-registry     install and enable Microk8s local registry on port 32000
+  --install-local-registry      install and enable Microk8s local registry on port 32000
   --install-microstack          install Microstack and configure to run robot tests
   --install-qhttpd              install QHTTPD as an HTTP server on port ${HTTPPORT}
   --kubecfg                     path to kubecfg.yaml (uses Charmed OSM by default)
@@ -171,7 +174,12 @@
         print_section "Building ${MODULE}"
         cd ${MODULE}
         find . -name '*.deb' -exec rm -v {} \;
-        docker build ${NO_CACHE} -t ${MODULE,,}-stage2 .
+
+        BUILD_ARGS=""
+        if [ ! -z $APT_PROXY ] ; then
+            BUILD_ARGS="${BUILD_ARGS}--build-arg APT_PROXY=${APT_PROXY} "
+        fi
+        docker build ${NO_CACHE} ${BUILD_ARGS} -t ${MODULE,,}-stage2 .
 
         STAGES="stage-build.sh"
         if [ ! -z $TESTS ] ; then
@@ -217,6 +225,10 @@
     print_section "Performing Stage 3"
     MODULES=$(_find_module_dockerfile $1)
     BUILD_ARGS=""
+    if [ ! -z $APT_PROXY ] ; then
+        BUILD_ARGS="${BUILD_ARGS}--build-arg APT_PROXY=${APT_PROXY} "
+    fi
+
     HOSTIP=$(ip -4 addr show docker0 | grep -Po 'inet \K[\d.]+')
     for file in ~/snap/qhttp/common/*.deb ; do
         file=`basename ${file}`