chore: Add Dockerfile and docker-compose.yml for containerization

.github/workflows/image.yml

@@ -0,0 +1,30 @@
+name: security.txt Image
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - main
+
+env:
+  IMAGE_BASE_TAG: git.b0t.at/b0t-at/security.txt
+
+jobs:
+  build-and-push-image:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.inputs.branch }}
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ vars.registry_uri }}
+          username: ${{ secrets.registry_username }}
+          password: ${{ secrets.registry_password }}
+      - name: Build and push Docker image Frontend
+        uses: docker/build-push-action@v5
+        with:
+          push: true
+          tags: ${{ env.IMAGE_BASE_TAG }}:latest

Dockerfile

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+FROM nginx:alpine
+
+# Copy the entrypoint script
+COPY entrypoint.sh /entrypoint.sh
+
+# Make the script executable
+RUN chmod +x /entrypoint.sh
+
+# Set the entrypoint script to run on container start
+ENTRYPOINT ["/entrypoint.sh"]
+
+# Start nginx in the foreground
+CMD ["nginx", "-g", "daemon off;"]

README.md

@@ -1,2 +1,2 @@
 # security.txt
-Takes an Email-Address (or any other string) and serves it via traefic under /security.txt
+Takes an Email-Address (or any other string) and serves it under /security.txt (RFC 5785) as plain text.

docker-compose.yml

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+version: '3.8'
+services:
+  web:
+    build: .
+    environment:
+      - SECURITY_STRING=This is a test security string.
+    ports:
+      - "80:80"

entrypoint.sh

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+#!/bin/sh
+
+# Check if the SECURITY_STRING environment variable is set and not empty
+if [ -z "$SECURITY_STRING" ]; then
+  echo "The SECURITY_STRING environment variable is not set. Exiting..."
+  exit 1
+fi
+
+# Write the content of SECURITY_STRING to /usr/share/nginx/html/security.txt
+echo "$SECURITY_STRING" > /usr/share/nginx/html/security.txt
+
+# Execute the CMD from the Dockerfile, keeping nginx in the foreground
+exec "$@"