Bring back the health check

Dockerfile

@@ -19,6 +19,11 @@ WORKDIR /app
 COPY --from=builder /app/zurg .
 # RUN apk add --no-cache upx
 # RUN upx --brute zurg
+# Create a health check script that extracts the port from the config file
+RUN echo $'#!/bin/sh\n\
+port=$(yaml read /app/config.yml port)\n\
+nc -z localhost $port || exit 1' > /app/healthcheck.sh && \
+    chmod +x /app/healthcheck.sh
 
 # Final stage
 FROM alpine:3
@@ -26,12 +31,15 @@ WORKDIR /app
 
 # Copy the obfuscated binary from the obfuscator stage
 COPY --from=obfuscator /app/zurg .
+COPY --from=obfuscator /app/healthcheck.sh .
 
 # Copy the rest of the application files, including the config.yml
 COPY config.example.yml /app/config.yml
 
 # Install runtime dependencies and configure FUSE
-RUN apk add --no-cache fuse3 curl \
+RUN apk add --no-cache fuse3 netcat-openbsd yaml-cpp curl \
     && echo 'user_allow_other' >> /etc/fuse.conf
 
+HEALTHCHECK --interval=60s --timeout=60s --start-period=10s --retries=10 CMD /app/healthcheck.sh
+
 ENTRYPOINT ["./zurg"]