Add github actions build for apache2 container

.github/workflows/build.yaml

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+name: Build
+
+on:
+  push:
+    branches: [main]
+    # Publish semver tags as releases.
+    tags: ['v*.*.*']
+  pull_request:
+    branches: [main]
+
+env:
+  # Use docker.io for Docker Hub if empty
+  REGISTRY: ghcr.io
+  # github.repository as <account>/<repo>
+  IMAGE_NAME: ${{ github.repository }}
+
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      # Login against a Docker registry except on PR
+      # https://github.com/docker/login-action
+      - name: Log into registry ${{ env.REGISTRY }}
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v2
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      # Extract metadata (tags, labels) for Docker
+      # https://github.com/docker/metadata-action
+      - name: Extract Docker metadata
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=semver,pattern=v{{version}}
+            type=semver,pattern=v{{major}}.{{minor}}
+            type=semver,pattern=v{{major}}
+            type=ref,event=branch
+            type=ref,event=pr
+            type=sha
+
+      # Build and push Docker image with Buildx (don't push on PR)
+      # https://github.com/docker/build-push-action
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

Dockerfile

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+FROM debian:12
+RUN apt update
+RUN apt install -y apache2
+RUN apt install -y libapache2-mod-wsgi-py3
+RUN apt install -y libapache2-mod-auth-openidc
+RUN a2enmod wsgi
+RUN a2enmod proxy
+RUN a2enmod proxy_http
+RUN a2enmod headers
+RUN a2enmod ssl
+RUN a2enmod rewrite
+RUN a2enmod auth_openidc
+RUN a2ensite default-ssl
+COPY files/apache2-foreground /usr/bin/apache2-foreground
+RUN chmod 755 /usr/bin/apache2-foreground
+CMD /usr/bin/apache2-foreground

files/apache2-foreground

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+#!/bin/sh
+set -e
+
+export APACHE_RUN_DIR=/var/run/apache2
+export APACHE_ARGUMENTS="-DFOREGROUND $@"
+
+# Apache gets grumpy about PID files pre-existing
+rm -f ${APACHE_RUN_DIR}/apache2.pid
+
+exec /usr/sbin/apachectl start