Update Dockerfile

Dockerfile

@@ -22,9 +22,10 @@ RUN git clone https://github.com/searxng/searxng-docker
 
 WORKDIR /code/searxng-docker
 
-RUN openssl rand -hex 32 > ultrasecretkey
-RUN sed -i "s|ultrasecretkey|$$(cat ultrasecretkey)|g" searxng/settings.yml
+RUN curl -L "https://github.com/docker/compose/releases/download/1.29.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose && chmod +x /usr/local/bin/docker-compose
+
+RUN sed -i "s|ultrasecretkey|$(openssl rand -hex 32)|g" /code/searxng-docker/searxng/settings.yml
 
 EXPOSE 80
 
-CMD ["docker-compose", "up", "-d"]
+CMD ["/usr/local/bin/docker-compose", "up", "-d"]