diff --git a/docker/Dockerfile b/docker/Dockerfile
index c8ad9d1..c8e54c1 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -8,3 +8,8 @@ RUN apt-get -y install python3
 RUN apt-get -y install ruby
 RUN apt-get -y install nodejs
 RUN apt-get -y install golang
+
+RUN useradd runner
+
+RUN echo '@runner soft nproc 16' >> /etc/security/limits.conf
+RUN echo '@runner hard nproc 16' >> /etc/security/limits.conf