[core] add tini to Dockerfile

fix #990

Dockerfile

@@ -146,6 +146,9 @@ RUN  apt-get update \
      && apt-get install -y libc6 \
      && rm -rf /var/lib/apt/lists/*
 
+# Install tini for proper init process
+RUN apt-get update && apt-get install -y tini && rm -rf /var/lib/apt/lists/*
+
 # Set the ENV for docker image
 ENV WHATSAPP_DEFAULT_ENGINE=$WHATSAPP_DEFAULT_ENGINE
 
@@ -170,4 +173,6 @@ ENV WAHA_ZIPPER=ZIPUNZIP
 
 # Run command, etc
 EXPOSE 3000
+# Use tini as init system to handle zombie processes properly
+ENTRYPOINT ["/usr/bin/tini", "--"]
 CMD ["/entrypoint.sh"]

entrypoint.sh

@@ -7,5 +7,5 @@ uv_threadpool_size=$(($cpus * 1))
 # Set UV_THREADPOOL_SIZE as an environment variable
 export UV_THREADPOOL_SIZE="${UV_THREADPOOL_SIZE:-$uv_threadpool_size}"
 
-# Start your application using yarn
+# Start your application using node with exec to ensure proper signal handling
 exec node dist/main