Add workflow and dockerfile for edx-exams

.github/workflows/push-edx-exams-image.yaml

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+name: Build and Push Edx Exams Image
+
+on:
+  workflow_dispatch:
+    inputs:
+      branch:
+        description: "Target branch from which the source dockerfile from image will be sourced"
+
+  schedule:
+    - cron: "0 4 * * 1-5"  # UTC Time
+
+jobs:
+  build-and-push-image:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Get tag name
+        id: get-tag-name
+        uses: actions/github-script@v5
+        with:
+          script: |
+            const tagName = "${{ github.event.inputs.branch }}" || 'latest';
+            console.log('Will use tag: ' + tagName);
+            return tagName;
+          result-encoding: string
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Login to DockerHub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_PASSWORD }}
+
+      - name: Build and push Dev Docker image
+        uses: docker/build-push-action@v6
+        with:
+          file: ./dockerfiles/edx-exams.Dockerfile
+          push: true
+          target: app
+          tags: edxops/edx_exams:${{ steps.get-tag-name.outputs.result }}
+
+      - name: Send failure notification
+        if: failure()
+        uses: dawidd6/action-send-mail@v3
+        with:
+          server_address: email-smtp.us-east-1.amazonaws.com
+          server_port: 465
+          username: ${{secrets.edx_smtp_username}}
+          password: ${{secrets.edx_smtp_password}}
+          subject: Push Image to docker.io/edxops failed in edx-exams
+          to: [email protected]
+          from: github-actions <[email protected]>
+          body: Push Image to docker.io/edxops for edx-exams failed! For details see "github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}"

dockerfiles/edx-exams.Dockerfile

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+FROM ubuntu:focal as app
+LABEL org.opencontainers.image.authors="[email protected]"
+
+
+# Packages installed:
+
+# language-pack-en locales; ubuntu locale support so that system utilities have a consistent
+# language and time zone.
+
+# python; ubuntu doesnt ship with python, so this is the python we will use to run the application
+
+# python3-pip; install pip to install application requirements.txt files
+
+# libmysqlclient-dev; to install header files needed to use native C implementation for
+# MySQL-python for performance gains.
+
+# pkg-config; mysqlclient>=2.2.0 requires pkg-config (https://github.com/PyMySQL/mysqlclient/issues/620)
+
+# libssl-dev; # mysqlclient wont install without this.
+
+# python3-dev; to install header files for python extensions; much wheel-building depends on this
+
+# gcc; for compiling python extensions distributed with python packages like mysql-client
+
+# make; necessary to provision the container
+
+# ENV variables for Python 3.12 support
+ARG PYTHON_VERSION=3.12
+ENV TZ=UTC
+ENV TERM=xterm-256color
+ENV DEBIAN_FRONTEND=noninteractive
+
+# software-properties-common is needed to setup Python 3.12 env
+RUN apt-get update && \
+  apt-get install -y software-properties-common && \
+  apt-add-repository -y ppa:deadsnakes/ppa
+
+# If you add a package here please include a comment above describing what it is used for
+RUN apt-get update && apt-get -qy install --no-install-recommends \
+ build-essential \
+ language-pack-en \
+ locales \
+ libmysqlclient-dev \
+ pkg-config \
+ libssl-dev \
+ gcc \
+ make \
+ git \
+ curl \
+ python3-pip \
+ python${PYTHON_VERSION} \
+ python${PYTHON_VERSION}-dev \
+ python${PYTHON_VERSION}-distutils
+
+RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
+
+RUN pip install --upgrade pip setuptools
+# delete apt package lists because we do not need them inflating our image
+RUN rm -rf /var/lib/apt/lists/*
+
+# need to use virtualenv pypi package with Python 3.12
+RUN curl -sS https://bootstrap.pypa.io/get-pip.py | python${PYTHON_VERSION}
+RUN pip install virtualenv
+
+# Create virtual environment with Python 3.12
+ENV VIRTUAL_ENV=/edx/venvs/edx-exams
+RUN virtualenv -p python${PYTHON_VERSION} $VIRTUAL_ENV
+ENV PATH="$VIRTUAL_ENV/bin:$PATH"
+
+# python is python3
+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 DJANGO_SETTINGS_MODULE edx_exams.settings.production
+
+EXPOSE 18740
+RUN useradd -m --shell /bin/false app
+
+WORKDIR /edx/app/edx-exams
+
+RUN mkdir -p requirements
+# Copy the requirements explicitly even though we copy everything below
+# this prevents the image cache from busting unless the dependencies have changed.
+RUN curl -L -o requirements/production.txt https://raw.githubusercontent.com/edx/edx-exams/main/requirements/production.txt
+
+# Dependencies are installed as root so they cannot be modified by the application user.
+RUN pip install -r requirements/production.txt
+
+RUN mkdir -p /edx/var/log
+
+# This line is after the requirements so that changes to the code will not
+# bust the image cache
+RUN curl -L https://github.com/edx/edx-exams/archive/refs/heads/main.tar.gz | tar -xz --strip-components=1
+
+# Code is owned by root so it cannot be modified by the application user.
+# So we copy it before changing users.
+USER app
+
+# Gunicorn 19 does not log to stdout or stderr by default. Once we are past gunicorn 19, the logging to STDOUT need not be specified.
+CMD gunicorn --workers=2 --name edx-exams -c /edx/app/edx-exams/edx_exams/docker_gunicorn_configuration.py --log-file - --max-requests=1000 edx_exams.wsgi:application