diff --git a/dockerfiles/commerce-coordinator.Dockerfile b/dockerfiles/commerce-coordinator.Dockerfile
index 0058554..244f6fa 100644
--- a/dockerfiles/commerce-coordinator.Dockerfile
+++ b/dockerfiles/commerce-coordinator.Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:focal as app
+FROM ubuntu:focal AS app
 MAINTAINER sre@edx.org
 
 
@@ -37,11 +37,11 @@ RUN rm -rf /var/lib/apt/lists/*
 RUN ln -s /usr/bin/python3 /usr/bin/python
 
 RUN locale-gen en_US.UTF-8
-ENV LANG en_US.UTF-8
-ENV LANGUAGE en_US:en
-ENV LC_ALL en_US.UTF-8
+ENV LANG=en_US.UTF-8
+ENV LANGUAGE=en_US:en
+ENV LC_ALL=en_US.UTF-8
 
-ENV DJANGO_SETTINGS_MODULE commerce_coordinator.settings.production
+ENV DJANGO_SETTINGS_MODULE=commerce_coordinator.settings.production
 
 EXPOSE 8140
 
diff --git a/dockerfiles/course-discovery.Dockerfile b/dockerfiles/course-discovery.Dockerfile
index 89a1709..fc4725b 100644
--- a/dockerfiles/course-discovery.Dockerfile
+++ b/dockerfiles/course-discovery.Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:focal as app
+FROM ubuntu:focal AS app
 
 ARG PYTHON_VERSION=3.12
 
@@ -75,7 +75,7 @@ RUN npm install --production && ./node_modules/.bin/bower install --allow-root -
 # Expose canonical Discovery port
 EXPOSE 8381
 
-FROM app as prod
+FROM app AS prod
 
 ENV DJANGO_SETTINGS_MODULE "course_discovery.settings.production"
 
@@ -85,7 +85,7 @@ RUN DISCOVERY_CFG=minimal.yml OPENEDX_ATLAS_PULL=true make pull_translations
 
 CMD gunicorn --bind=0.0.0.0:8381 --workers 2 --max-requests=1000 -c course_discovery/docker_gunicorn_configuration.py course_discovery.wsgi:application
 
-FROM app as dev
+FROM app AS dev
 
 ENV DJANGO_SETTINGS_MODULE "course_discovery.settings.devstack"
 
@@ -101,6 +101,7 @@ CMD while true; do python ./manage.py runserver 0.0.0.0:8381; sleep 2; done
 
 ###########################################################
 # Define k8s target
-FROM prod as kubernetes
+
+FROM prod AS kubernetes
 ENV DISCOVERY_SETTINGS='kubernetes'
 ENV DJANGO_SETTINGS_MODULE="course_discovery.settings.$DISCOVERY_SETTINGS"
diff --git a/dockerfiles/credentials.Dockerfile b/dockerfiles/credentials.Dockerfile
index 71ecafb..3f78a4e 100644
--- a/dockerfiles/credentials.Dockerfile
+++ b/dockerfiles/credentials.Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:focal as base
+FROM ubuntu:focal AS base
 
 # System requirements
 # - git; Used to pull in particular requirements from github rather than pypi,
@@ -35,12 +35,12 @@ ENV PATH="$NODE_ENV/bin:$PATH"
 RUN npm install -g npm@9.x.x
 
 RUN locale-gen en_US.UTF-8
-ENV LANG en_US.UTF-8
-ENV LANGUAGE en_US:en
-ENV LC_ALL en_US.UTF-8
-ENV DJANGO_SETTINGS_MODULE credentials.settings.production
-ENV OPENEDX_ATLAS_PULL true
-ENV CREDENTIALS_CFG "minimal.yml"
+ENV LANG=en_US.UTF-8
+ENV LANGUAGE=en_US:en
+ENV LC_ALL=en_US.UTF-8
+ENV DJANGO_SETTINGS_MODULE=credentials.settings.production
+ENV OPENEDX_ATLAS_PULL=true
+ENV CREDENTIALS_CFG="minimal.yml"
 
 EXPOSE 18150
 RUN useradd -m --shell /bin/false app
@@ -94,7 +94,7 @@ CMD gunicorn --workers=2 --name credentials -c /edx/app/credentials/credentials/
 
 # We don't switch back to the app user for devstack because we need devstack users to be
 # able to update requirements and generally run things as root.
-FROM base as dev
+FROM base AS dev
 USER root
 ENV DJANGO_SETTINGS_MODULE credentials.settings.devstack
 RUN pip install -r /edx/app/credentials/credentials/requirements/dev.txt
diff --git a/dockerfiles/ecommerce.Dockerfile b/dockerfiles/ecommerce.Dockerfile
index cd1926e..3e6a571 100644
--- a/dockerfiles/ecommerce.Dockerfile
+++ b/dockerfiles/ecommerce.Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:focal as app
+FROM ubuntu:focal AS app
 
 ENV DEBIAN_FRONTEND noninteractive
 # System requirements.
@@ -55,7 +55,7 @@ RUN npm install --production && ./node_modules/.bin/bower install --allow-root -
 # Expose canonical ecommerce port
 EXPOSE 18130
 
-FROM app as prod
+FROM app AS prod
 
 ENV DJANGO_SETTINGS_MODULE "ecommerce.settings.production"
 
@@ -71,7 +71,7 @@ RUN curl -L https://github.com/edx/ecommerce/archive/refs/heads/2u/main.tar.gz |
 
 CMD gunicorn --bind=0.0.0.0:18130 --workers 2 --max-requests=1000 -c ecommerce/docker_gunicorn_configuration.py ecommerce.wsgi:application
 
-FROM app as dev
+FROM app AS dev
 
 ENV DJANGO_SETTINGS_MODULE "ecommerce.settings.devstack"
 
diff --git a/dockerfiles/edx-analytics-dashboard.Dockerfile b/dockerfiles/edx-analytics-dashboard.Dockerfile
index 6dd5d8c..da92fac 100644
--- a/dockerfiles/edx-analytics-dashboard.Dockerfile
+++ b/dockerfiles/edx-analytics-dashboard.Dockerfile
@@ -1,6 +1,6 @@
-FROM ubuntu:focal as app
+FROM ubuntu:focal AS app
 
-ENV DEBIAN_FRONTEND noninteractive
+ENV DEBIAN_FRONTEND=noninteractive
 
 ARG PYTHON_VERSION=3.8
 
@@ -30,23 +30,23 @@ RUN apt-get update && \
   rm -rf /var/lib/apt/lists/*
 
 RUN locale-gen en_US.UTF-8
-ENV LANG en_US.UTF-8
-ENV LANGUAGE en_US:en
-ENV LC_ALL en_US.UTF-8
+ENV LANG=en_US.UTF-8
+ENV LANGUAGE=en_US:en
+ENV LC_ALL=en_US.UTF-8
 
 # ENV variables lifetime is bound to the container whereas ARGS variables lifetime is bound to the image building process only
 # Also ARGS provide us an option of compatibility of Path structure for Tutor and other OpenedX installations
-ARG COMMON_CFG_DIR "/edx/etc"
+ARG COMMON_CFG_DIR="/edx/etc"
 ARG COMMON_APP_DIR="/edx/app"
 ARG INSIGHTS_APP_DIR="${COMMON_APP_DIR}/insights"
 ARG INSIGHTS_VENV_DIR="${COMMON_APP_DIR}/insights/venvs/insights"
 ARG INSIGHTS_CODE_DIR="${INSIGHTS_APP_DIR}/edx_analytics_dashboard"
 ARG INSIGHTS_NODEENV_DIR="${COMMON_APP_DIR}/insights/nodeenvs/insights"
 
-ENV PATH "${INSIGHTS_VENV_DIR}/bin:${INSIGHTS_NODEENV_DIR}/bin:$PATH"
-ENV INSIGHTS_APP_DIR ${INSIGHTS_APP_DIR}
-ENV THEME_SCSS "sass/themes/open-edx.scss"
-ENV PYTHON_VERSION "${PYTHON_VERSION}"
+ENV PATH="${INSIGHTS_VENV_DIR}/bin:${INSIGHTS_NODEENV_DIR}/bin:$PATH"
+ENV INSIGHTS_APP_DIR=${INSIGHTS_APP_DIR}
+ENV THEME_SCSS="sass/themes/open-edx.scss"
+ENV PYTHON_VERSION="${PYTHON_VERSION}"
 
 RUN curl -sS https://bootstrap.pypa.io/get-pip.py | python${PYTHON_VERSION}
 RUN pip install virtualenv
@@ -75,20 +75,20 @@ RUN npm set progress=false && npm ci
 EXPOSE 8110
 EXPOSE 18110
 
-FROM app as dev
+FROM app AS dev
 
 RUN pip install --no-cache-dir -r requirements/local.txt
 
-ENV DJANGO_SETTINGS_MODULE "analytics_dashboard.settings.devstack"
+ENV DJANGO_SETTINGS_MODULE="analytics_dashboard.settings.devstack"
 
 # Backwards compatibility with devstack
 RUN touch "${INSIGHTS_APP_DIR}/insights_env"
 
 CMD while true; do python ./manage.py runserver 0.0.0.0:8110; sleep 2; done
 
-FROM app as prod
+FROM app AS prod
 
-ENV DJANGO_SETTINGS_MODULE "analytics_dashboard.settings.production"
+ENV DJANGO_SETTINGS_MODULE="analytics_dashboard.settings.production"
 
 CMD gunicorn \
   --pythonpath=/edx/app/insights/edx_analytics_dashboard/analytics_dashboard \
diff --git a/dockerfiles/edx-analytics-data-api.Dockerfile b/dockerfiles/edx-analytics-data-api.Dockerfile
index 7e64cbf..63937c2 100644
--- a/dockerfiles/edx-analytics-data-api.Dockerfile
+++ b/dockerfiles/edx-analytics-data-api.Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:focal as base
+FROM ubuntu:focal AS base
 
 # System requirements.
 
@@ -17,7 +17,7 @@ RUN apt-get update && \
 
 RUN apt-get update && \
   apt-get install -qy \
-  build-essential \ 
+  build-essential \
   curl \
   vim \
   language-pack-en \
@@ -39,21 +39,21 @@ RUN pip install virtualenv
 
 # Use UTF-8.
 RUN locale-gen en_US.UTF-8
-ENV LANG en_US.UTF-8
-ENV LANGUAGE en_US:en
-ENV LC_ALL en_US.UTF-8
+ENV LANG=en_US.UTF-8
+ENV LANGUAGE=en_US:en
+ENV LC_ALL=en_US.UTF-8
 
 ARG COMMON_APP_DIR="/edx/app"
 ARG ANALYTICS_API_SERVICE_NAME="analytics_api"
-ENV ANALYTICS_API_HOME "${COMMON_APP_DIR}/${ANALYTICS_API_SERVICE_NAME}"
+ENV ANALYTICS_API_HOME="${COMMON_APP_DIR}/${ANALYTICS_API_SERVICE_NAME}"
 ARG ANALYTICS_API_APP_DIR="${COMMON_APP_DIR}/${ANALYTICS_API_SERVICE_NAME}"
 ARG ANALYTICS_API_VENV_DIR="${COMMON_APP_DIR}/${ANALYTICS_API_SERVICE_NAME}/venvs/${ANALYTICS_API_SERVICE_NAME}"
 ARG ANALYTICS_API_CODE_DIR="${ANALYTICS_API_APP_DIR}/${ANALYTICS_API_SERVICE_NAME}"
 
 ENV ANALYTICS_API_CODE_DIR="${ANALYTICS_API_CODE_DIR}"
-ENV PATH "${ANALYTICS_API_VENV_DIR}/bin:$PATH"
-ENV COMMON_CFG_DIR "/edx/etc"
-ENV ANALYTICS_API_CFG "/edx/etc/${ANALYTICS_API_SERVICE_NAME}.yml"
+ENV PATH="${ANALYTICS_API_VENV_DIR}/bin:$PATH"
+ENV COMMON_CFG_DIR="/edx/etc"
+ENV ANALYTICS_API_CFG="/edx/etc/${ANALYTICS_API_SERVICE_NAME}.yml"
 
 # Working directory will be root of repo.
 WORKDIR ${ANALYTICS_API_CODE_DIR}
@@ -66,9 +66,9 @@ RUN mkdir -p requirements
 # Expose canonical Analytics port
 EXPOSE 19001
 
-FROM base as prod
+FROM base AS prod
 
-ENV DJANGO_SETTINGS_MODULE "analyticsdataserver.settings.production"
+ENV DJANGO_SETTINGS_MODULE="analyticsdataserver.settings.production"
 
 
 RUN curl -L -o requirements/production.txt https://raw.githubusercontent.com/edx/edx-analytics-data-api/master/requirements/production.txt
@@ -85,9 +85,9 @@ RUN curl -L https://github.com/edx/edx-analytics-data-api/archive/refs/heads/mas
 
 CMD ["gunicorn" , "-b", "0.0.0.0:8100", "--pythonpath", "/edx/app/analytics_api/analytics_api","analyticsdataserver.wsgi:application"]
 
-FROM base as dev
+FROM base AS dev
 
-ENV DJANGO_SETTINGS_MODULE "analyticsdataserver.settings.devstack"
+ENV DJANGO_SETTINGS_MODULE="analyticsdataserver.settings.devstack"
 
 RUN curl -L -o requirements/dev.txt https://raw.githubusercontent.com/edx/edx-analytics-data-api/master/requirements/dev.txt
 
diff --git a/dockerfiles/edx-exams.Dockerfile b/dockerfiles/edx-exams.Dockerfile
index 2b8f298..574d69c 100644
--- a/dockerfiles/edx-exams.Dockerfile
+++ b/dockerfiles/edx-exams.Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:focal as app
+FROM ubuntu:focal AS app
 LABEL org.opencontainers.image.authors="sre@edx.org"
 
 
diff --git a/dockerfiles/edx-notes-api.Dockerfile b/dockerfiles/edx-notes-api.Dockerfile
index 9097c34..4d570df 100644
--- a/dockerfiles/edx-notes-api.Dockerfile
+++ b/dockerfiles/edx-notes-api.Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:focal as app
+FROM ubuntu:focal AS app
 
 # Packages installed:
 # git; Used to pull in particular requirements from github rather than pypi,
@@ -36,9 +36,9 @@ RUN apt-get update && \
 
 
 RUN locale-gen en_US.UTF-8
-ENV LANG en_US.UTF-8
-ENV LANGUAGE en_US:en
-ENV LC_ALL en_US.UTF-8
+ENV LANG=en_US.UTF-8
+ENV LANGUAGE=en_US:en
+ENV LC_ALL=en_US.UTF-8
 
 
 # ENV variables lifetime is bound to the container whereas ARGS variables lifetime is bound to the image building process only
@@ -70,9 +70,9 @@ RUN mkdir -p /edx/var/log
 
 EXPOSE 8120
 
-FROM app as dev
+FROM app AS dev
 
-ENV DJANGO_SETTINGS_MODULE "notesserver.settings.devstack"
+ENV DJANGO_SETTINGS_MODULE="notesserver.settings.devstack"
 
 # Backwards compatibility with devstack
 RUN touch "${COMMON_APP_DIR}/edx_notes_api_env"
@@ -81,10 +81,10 @@ RUN curl -L https://github.com/openedx/edx-notes-api/archive/refs/heads/master.t
 
 CMD while true; do python ./manage.py runserver 0.0.0.0:8120; sleep 2; done
 
-FROM app as production
+FROM app AS production
 
-ENV EDXNOTES_CONFIG_ROOT /edx/etc
-ENV DJANGO_SETTINGS_MODULE "notesserver.settings.yaml_config"
+ENV EDXNOTES_CONFIG_ROOT=/edx/etc
+ENV DJANGO_SETTINGS_MODULE="notesserver.settings.yaml_config"
 
 RUN curl -L https://github.com/openedx/edx-notes-api/archive/refs/heads/master.tar.gz | tar -xz --strip-components=1
 
diff --git a/dockerfiles/enterprise-access.Dockerfile b/dockerfiles/enterprise-access.Dockerfile
index f984abb..f7e5e7b 100644
--- a/dockerfiles/enterprise-access.Dockerfile
+++ b/dockerfiles/enterprise-access.Dockerfile
@@ -116,7 +116,6 @@ RUN pip install newrelic
 CMD newrelic-admin run-program gunicorn --workers=2 --name enterprise-access -c /edx/app/enterprise-access/enterprise_access/docker_gunicorn_configuration.py --log-file - --max-requests=1000 enterprise_access.wsgi:application
 
 FROM app AS devstack
-
 USER root
 RUN pip install -r requirements/dev.txt
 
diff --git a/dockerfiles/enterprise-catalog.Dockerfile b/dockerfiles/enterprise-catalog.Dockerfile
index dd81b2f..b80a3cd 100644
--- a/dockerfiles/enterprise-catalog.Dockerfile
+++ b/dockerfiles/enterprise-catalog.Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:focal as app
+FROM ubuntu:focal AS app
 MAINTAINER sre@edx.org
 
 # Packages installed:
@@ -89,7 +89,7 @@ CMD ["gunicorn", "--workers=2", "--name", "enterprise_catalog", "-c", "/edx/app/
 # Create newrelic image used by the experimental docker shim. #
 ###############################################################
 # TODO: remove this after we migrate to k8s since it will serve no more purpose.
-FROM app as newrelic
+FROM app AS newrelic
 RUN pip install newrelic
 CMD ["newrelic-admin", "run-program", "gunicorn", "--workers=2", "--name", "enterprise_catalog", "-c", "/edx/app/enterprise_catalog/enterprise_catalog/enterprise_catalog/docker_gunicorn_configuration.py", "--log-file", "-", "--max-requests=1000", "enterprise_catalog.wsgi:application"]
 
@@ -98,7 +98,7 @@ CMD ["newrelic-admin", "run-program", "gunicorn", "--workers=2", "--name", "ente
 #################################
 # TODO: remove this after we migrate to k8s.  It already isn't used today, but just defer changes until absolutely
 # necessary for safety.
-FROM app as legacy_devapp
+FROM app AS legacy_devapp
 # Dev ports
 EXPOSE 18160
 EXPOSE 18161
diff --git a/dockerfiles/enterprise-subsidy.Dockerfile b/dockerfiles/enterprise-subsidy.Dockerfile
index 0249a99..3b8ebb9 100644
--- a/dockerfiles/enterprise-subsidy.Dockerfile
+++ b/dockerfiles/enterprise-subsidy.Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:focal as app
+FROM ubuntu:focal AS app
 MAINTAINER sre@edx.org
 
 # Packages installed:
@@ -73,10 +73,10 @@ RUN virtualenv -p python${PYTHON_VERSION} $VIRTUAL_ENV
 ENV PATH="$VIRTUAL_ENV/bin:$PATH"
 
 RUN locale-gen en_US.UTF-8
-ENV LANG en_US.UTF-8
-ENV LANGUAGE en_US:en
-ENV LC_ALL en_US.UTF-8
-ENV DJANGO_SETTINGS_MODULE enterprise_subsidy.settings.production
+ENV LANG=en_US.UTF-8
+ENV LANGUAGE=en_US:en
+ENV LC_ALL=en_US.UTF-8
+ENV DJANGO_SETTINGS_MODULE=enterprise_subsidy.settings.production
 
 EXPOSE 18280
 RUN useradd -m --shell /bin/false app
@@ -102,11 +102,11 @@ USER app
 CMD gunicorn --workers=2 --name enterprise-subsidy -c /edx/app/enterprise-subsidy/enterprise_subsidy/docker_gunicorn_configuration.py --log-file - --max-requests=1000 enterprise_subsidy.wsgi:application
 
 
-FROM app as newrelic
+FROM app AS newrelic
 RUN pip install newrelic
 CMD gunicorn --workers=2 --name enterprise-subsidy -c /edx/app/enterprise-subsidy/enterprise_subsidy/docker_gunicorn_configuration.py --log-file - --max-requests=1000 enterprise_subsidy.wsgi:application
 
-FROM app as devstack
+FROM app AS devstack
 USER root
 RUN pip install -r requirements/dev.txt
 USER app
diff --git a/dockerfiles/portal-designer.Dockerfile b/dockerfiles/portal-designer.Dockerfile
index 5ea2962..0ba5c45 100644
--- a/dockerfiles/portal-designer.Dockerfile
+++ b/dockerfiles/portal-designer.Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:focal as app
+FROM ubuntu:focal AS app
 MAINTAINER sre@edx.org
 
 # ENV variables for Python 3.12 support
@@ -80,7 +80,7 @@ USER app
 CMD gunicorn --workers=2 --name designer -c /edx/app/designer/designer/docker_gunicorn_configuration.py --log-file - --max-requests=1000 designer.wsgi:application
 
 # Change into dev app
-FROM app as devstack
+FROM app AS devstack
 # Install dependencies as root and revert back to application user
 USER root
 RUN pip install -r /edx/app/designer/requirements/dev.txt
diff --git a/dockerfiles/program-intent-engagement.Dockerfile b/dockerfiles/program-intent-engagement.Dockerfile
index 25787d8..217684d 100644
--- a/dockerfiles/program-intent-engagement.Dockerfile
+++ b/dockerfiles/program-intent-engagement.Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:focal as app
+FROM ubuntu:focal AS app
 MAINTAINER sre@edx.org
 
 
@@ -67,10 +67,10 @@ RUN ln -s /usr/bin/python3 /usr/bin/python
 RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
 
 RUN locale-gen en_US.UTF-8
-ENV LANG en_US.UTF-8
-ENV LANGUAGE en_US:en
-ENV LC_ALL en_US.UTF-8
-ENV DJANGO_SETTINGS_MODULE program_intent_engagement.settings.production
+ENV LANG=en_US.UTF-8
+ENV LANGUAGE=en_US:en
+ENV LC_ALL=en_US.UTF-8
+ENV DJANGO_SETTINGS_MODULE=program_intent_engagement.settings.production
 
 EXPOSE 18781
 RUN useradd -m --shell /bin/false app
diff --git a/dockerfiles/registrar.Dockerfile b/dockerfiles/registrar.Dockerfile
index 1581234..22b4dde 100644
--- a/dockerfiles/registrar.Dockerfile
+++ b/dockerfiles/registrar.Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:focal as app
+FROM ubuntu:focal AS app
 
 # ENV variables for Python 3.12 support
 ARG PYTHON_VERSION=3.12
@@ -44,9 +44,9 @@ RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
 
 # Use UTF-8.
 RUN locale-gen en_US.UTF-8
-ENV LANG en_US.UTF-8
-ENV LANGUAGE en_US:en
-ENV LC_ALL en_US.UTF-8
+ENV LANG=en_US.UTF-8
+ENV LANGUAGE=en_US:en
+ENV LC_ALL=en_US.UTF-8
 
 ARG COMMON_CFG_DIR="/edx/etc"
 ARG COMMON_APP_DIR="/edx/app"
@@ -55,8 +55,8 @@ ARG REGISTRAR_VENV_DIR="${COMMON_APP_DIR}/venvs/registrar"
 ARG REGISTRAR_CODE_DIR="${REGISTRAR_APP_DIR}"
 
 ENV PATH="$REGISTRAR_VENV_DIR/bin:$PATH"
-ENV REGISTRAR_APP_DIR ${REGISTRAR_APP_DIR}
-ENV REGISTRAR_CODE_DIR ${REGISTRAR_CODE_DIR}
+ENV REGISTRAR_APP_DIR=${REGISTRAR_APP_DIR}
+ENV REGISTRAR_CODE_DIR=${REGISTRAR_CODE_DIR}
 
 # Working directory will be root of repo.
 WORKDIR ${REGISTRAR_CODE_DIR}
@@ -73,7 +73,7 @@ ENV REGISTRAR_CFG="${COMMON_CFG_DIR}/registrar.yml"
 EXPOSE 18734
 EXPOSE 18735
 
-FROM app as dev
+FROM app AS dev
 
 # fetching the requirement file that is needed
 RUN curl -L -o requirements/devstack.txt https://raw.githubusercontent.com/edx/registrar/master/requirements/devstack.txt
@@ -83,11 +83,11 @@ RUN pip install --no-cache-dir -r ${REGISTRAR_CODE_DIR}/requirements/devstack.tx
 # cloning the repository after requirements installation
 RUN curl -L https://github.com/edx/registrar/archive/refs/heads/master.tar.gz | tar -xz --strip-components=1
 
-ENV DJANGO_SETTINGS_MODULE registrar.settings.devstack
+ENV DJANGO_SETTINGS_MODULE=registrar.settings.devstack
 
 CMD while true; do python ./manage.py runserver 0.0.0.0:18734; sleep 2; done
 
-FROM app as prod
+FROM app AS prod
 
 # fetching the requirement file that is needed
 RUN curl -L -o requirements/production.txt https://raw.githubusercontent.com/edx/registrar/master/requirements/production.txt
@@ -97,6 +97,6 @@ RUN pip install --no-cache-dir -r ${REGISTRAR_CODE_DIR}/requirements/production.
 # cloning the repository after requirements installation
 RUN curl -L https://github.com/edx/registrar/archive/refs/heads/master.tar.gz | tar -xz --strip-components=1
 
-ENV DJANGO_SETTINGS_MODULE registrar.settings.production
+ENV DJANGO_SETTINGS_MODULE=registrar.settings.production
 
 CMD ["gunicorn", "--workers=2", "--name", "registrar", "-c", "/edx/app/registrar/registrar/docker_gunicorn_configuration.py", "--max-requests=1000", "registrar.wsgi:application"]
diff --git a/dockerfiles/xqueue.Dockerfile b/dockerfiles/xqueue.Dockerfile
index f62b4cd..3d0e2a4 100644
--- a/dockerfiles/xqueue.Dockerfile
+++ b/dockerfiles/xqueue.Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:focal as app
+FROM ubuntu:focal AS app
 
 # System requirements
 
@@ -12,9 +12,9 @@ RUN ln -s /usr/bin/python3 /usr/bin/python
 
 # Use UTF-8.
 RUN locale-gen en_US.UTF-8
-ENV LANG en_US.UTF-8
-ENV LANGUAGE en_US:en
-ENV LC_ALL en_US.UTF-8
+ENV LANG=en_US.UTF-8
+ENV LANGUAGE=en_US:en
+ENV LC_ALL=en_US.UTF-8
 
 ARG COMMON_APP_DIR="/edx/app"
 ARG XQUEUE_APP_DIR="${COMMON_APP_DIR}/xqueue"
@@ -37,7 +37,7 @@ RUN touch ${XQUEUE_APP_DIR}/xqueue_env
 # Expose ports.
 EXPOSE 8040
 
-FROM app as dev
+FROM app AS dev
 
 RUN curl -L -o ${XQUEUE_CODE_DIR}/requirements/dev.txt https://raw.githubusercontent.com/openedx/xqueue/master/requirements/dev.txt
 # xqueue service config commands below
@@ -46,11 +46,11 @@ RUN pip install -r ${XQUEUE_CODE_DIR}/requirements/dev.txt
 # cloning git repo
 RUN curl -L https://github.com/openedx/xqueue/archive/refs/heads/master.tar.gz | tar -xz --strip-components=1
 
-ENV DJANGO_SETTINGS_MODULE xqueue.devstack
+ENV DJANGO_SETTINGS_MODULE=xqueue.devstack
 
 CMD while true; do python ./manage.py runserver 0.0.0.0:8040; sleep 2; done
 
-FROM app as production
+FROM app AS production
 
 RUN curl -L -o ${XQUEUE_APP_DIR}/requirements.txt https://raw.githubusercontent.com/openedx/xqueue/master/requirements.txt
 # xqueue service config commands below
@@ -59,7 +59,7 @@ RUN pip install -r ${XQUEUE_APP_DIR}/requirements.txt
 # cloning git repo
 RUN curl -L https://github.com/openedx/xqueue/archive/refs/heads/master.tar.gz | tar -xz --strip-components=1
 
-ENV DJANGO_SETTINGS_MODULE xqueue.production
+ENV DJANGO_SETTINGS_MODULE=xqueue.production
 
 CMD gunicorn \
     --pythonpath=/edx/app/xqueue/xqueue \