diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..990531f
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,15 @@
+**/__pycache__
+**/.pytest_cache
+**/.ruff_cache
+**/.mypy_cache
+*.pyc
+.git
+.opencode
+.agents
+.playwright-mcp
+*.png
+.env
+data/
+examples/
+scripts/
+skills-lock.json
diff --git a/Dockerfile b/Dockerfile
index 4275ad6..9c8e53b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,7 +11,7 @@ COPY pyproject.toml README.md ./
 COPY guarddog_nexus/ guarddog_nexus/
 
 RUN uv pip install . --system
-RUN uv pip install --system guarddog
+RUN uv pip install --system "guarddog>=2.10.0"
 
 RUN mkdir -p /data /tmp/guarddog-nexus
 
@@ -21,4 +21,7 @@ ENV PYTHONDONTWRITEBYTECODE=1
 
 EXPOSE 8080
 
+HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
+    CMD python -c "from urllib.request import urlopen; urlopen('http://localhost:8080/health')"
+
 CMD ["python", "-m", "guarddog_nexus.main"]