Added Docker container.

Author: pantierra

.dockerignore

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+# Git
+.git
+.gitignore
+
+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# Virtual environments
+.venv/
+.env/
+venv/
+env/
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# OS
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db
+
+# Testing and Coverage
+.pytest_cache/
+.coverage
+htmlcov/
+.tox/
+.nox/
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+
+# Linting and Type Checking
+.mypy_cache/
+.ruff_cache/
+.dmypy.json
+dmypy.json
+
+# Development
+.pre-commit-config.yaml
+.github/
+examples/
+tests/
+
+# Docker
+Dockerfile
+.dockerignore
+docker-compose.yml
+docker-compose.*.yml
+
+# Documentation
+*.md
+!README.md
+
+# Environment files
+.env
+.env.local
+.env.*.local

.github/workflows/docker-release.yml

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+name: Docker Release
+
+on:
+  release:
+    types: [published]
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build-and-push:
+    name: Build and Push Docker Image
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v5
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to Container Registry
+        uses: docker/login-action@v4
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=ref,event=tag
+            type=raw,value=latest,enable={{is_default_branch}}
+
+      - name: Build and push Docker image
+        id: build
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+      - name: Generate artifact attestation
+        uses: actions/attest-build-provenance@v2
+        with:
+          subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME}}
+          subject-digest: ${{ steps.build.outputs.digest }}
+          push-to-registry: true

.github/workflows/docker-test.yml

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+name: Docker Build Test
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    paths:
+      - 'Dockerfile'
+      - '.dockerignore'
+      - 'pyproject.toml'
+      - 'uv.lock'
+      - 'eoapi_notifier/**'
+      - '.github/workflows/docker-*.yml'
+
+env:
+  IMAGE_NAME: eoapi-notifier
+
+jobs:
+  docker-build-test:
+    name: Test Docker Build
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v5
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build Docker image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          push: false
+          tags: ${{ env.IMAGE_NAME }}:test
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+      - name: Test Docker image
+        run: |
+          echo "🐳 Testing Docker image functionality..."
+
+          # Test help command
+          docker run --rm ${{ env.IMAGE_NAME }}:test --help
+
+          # Test version command
+          docker run --rm ${{ env.IMAGE_NAME }}:test --version
+
+          # Test with invalid config (should show error)
+          echo "Testing error handling..."
+          docker run --rm ${{ env.IMAGE_NAME }}:test /nonexistent/config.yaml || \
+            echo "✅ Expected error handled correctly"
+
+          echo "✅ All Docker tests passed!"
+
+      - name: Check image size
+        run: |
+          echo "📊 Docker image information:"
+          docker images ${{ env.IMAGE_NAME }}:test
+
+          # Get image size in MB
+          SIZE=$(docker images ${{ env.IMAGE_NAME }}:test --format "{{.Size}}" | head -n1)
+          echo "Image size: $SIZE"
+
+          # Optional: Warn if image is getting too large (>500MB)
+          SIZE_BYTES=$(docker inspect ${{ env.IMAGE_NAME }}:test --format='{{.Size}}')
+          SIZE_MB=$((SIZE_BYTES / 1024 / 1024))
+          echo "Image size: ${SIZE_MB}MB"
+
+          if [ $SIZE_MB -gt 500 ]; then
+            echo "⚠️ Warning: Image size (${SIZE_MB}MB) is quite large. Consider optimization."
+          else
+            echo "✅ Image size looks reasonable: ${SIZE_MB}MB"
+          fi

Dockerfile

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+FROM python:3.12-slim
+
+# Set environment variables
+ENV PYTHONUNBUFFERED=1 \
+    PYTHONDONTWRITEBYTECODE=1 \
+    PIP_NO_CACHE_DIR=1 \
+    PIP_DISABLE_PIP_VERSION_CHECK=1
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y \
+    curl \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install uv
+RUN pip install uv
+
+# Set work directory
+WORKDIR /app
+
+# Copy all necessary files for the build
+COPY pyproject.toml uv.lock README.md LICENSE ./
+COPY eoapi_notifier/ ./eoapi_notifier/
+
+# Install dependencies and the package
+RUN uv sync --frozen --no-dev --no-cache
+
+# Create a non-root user
+RUN useradd --create-home --shell /bin/bash app && chown -R app:app /app
+USER app
+
+# Set the entry point
+ENTRYPOINT ["uv", "run", "eoapi-notifier"]
+CMD ["--help"]

docs/docker.md

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+## Docker
+
+The application is available as a Docker image hosted on GitHub Container Registry (GHCR). Docker images are automatically built and published when new releases are created.
+
+### Pull the Image
+
+```bash
+# Pull the latest version
+docker pull ghcr.io/developmentseed/eoapi-notifier:latest
+
+# Pull a specific version (replace v1.0.0 with desired version)
+docker pull ghcr.io/developmentseed/eoapi-notifier:v1.0.0
+```
+
+### Running with Docker
+
+**Show help:**
+```bash
+docker run --rm ghcr.io/developmentseed/eoapi-notifier:latest
+```
+
+**Show version:**
+```bash
+docker run --rm ghcr.io/developmentseed/eoapi-notifier:latest --version
+```
+
+**Run with a configuration file:**
+```bash
+docker run --rm -v /path/to/your/config.yaml:/app/config.yaml \
+  ghcr.io/developmentseed/eoapi-notifier:latest config.yaml
+```
+
+**Run with custom log level:**
+```bash
+docker run --rm -v /path/to/your/config.yaml:/app/config.yaml \
+  ghcr.io/developmentseed/eoapi-notifier:latest --log-level DEBUG config.yaml
+```
+
+### Building Locally
+
+If you prefer to build the Docker image locally:
+
+```bash
+docker build -t eoapi-notifier .
+docker run --rm eoapi-notifier --help
+```
+
+The Docker image is based on `python:3.12-slim` and includes all necessary dependencies. The image runs as a non-root user for security.