FDN-3068: Override TCP keepalive kernel config (#112)

flowcommerce · Nov 27, 2024 · 4ff5ed3 · 4ff5ed3
1 parent 40fc9ea
commit 4ff5ed3
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/Dockerfile-play-17 b/Dockerfile-play-17
@@ -5,6 +5,9 @@ LABEL maintainer="tech@flow.io"
 RUN apt update && apt upgrade -y && \
     sed -i s/#networkaddress.cache.ttl=-1/networkaddress.cache.ttl=10/ $JAVA_HOME/conf/security/java.security
 
+# Set TCP Keepalive
+RUN printf '\n# detect dead connections after 70 seconds\nnet.ipv4.tcp_keepalive_time = 60\nnet.ipv4.tcp_keepalive_intvl = 5\nnet.ipv4.tcp_keepalive_probes = 3\n' >> /etc/sysctl.conf
+
 COPY environment-provider.jar .
 COPY environment-provider-version.txt .
 RUN mv environment-provider.jar /root/