From 017499aab0a6890a60b5b7f8fab94d4eb2724a24 Mon Sep 17 00:00:00 2001
From: jdprabasha <dulajp@wso2.com>
Date: Wed, 27 Nov 2024 14:46:40 +0530
Subject: [PATCH] Add keepalive configs as templated strings

---
 router/src/main/resources/Dockerfile          | 4 ++++
 router/src/main/resources/envoy.yaml.template | 6 +++---
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/router/src/main/resources/Dockerfile b/router/src/main/resources/Dockerfile
index ef7fcf3837..ad3ea166df 100644
--- a/router/src/main/resources/Dockerfile
+++ b/router/src/main/resources/Dockerfile
@@ -48,6 +48,10 @@ ENV ROUTER_LABEL="Default"
 ENV ROUTER_PRIVATE_KEY_PATH=/home/wso2/security/keystore/mg.key
 ENV ROUTER_PUBLIC_CERT_PATH=/home/wso2/security/keystore/mg.pem
 
+ENV KEEPALIVE_TIMEOUT=60
+ENV KEEPALIVE_PROBES=3
+ENV KEEPALIVE_INTERVAL=30
+
 ENV ADAPTER_HOST=adapter
 ENV ADAPTER_PORT=18000
 ENV ADAPTER_CA_CERT_PATH=/home/wso2/security/truststore/mg.pem
diff --git a/router/src/main/resources/envoy.yaml.template b/router/src/main/resources/envoy.yaml.template
index 5f26603751..d4c1e62d98 100644
--- a/router/src/main/resources/envoy.yaml.template
+++ b/router/src/main/resources/envoy.yaml.template
@@ -42,9 +42,9 @@ static_resources:
       connect_timeout: 1s
       upstream_connection_options:
         tcp_keepalive:
-          keepalive_probes: 3
-          keepalive_time: 300
-          keepalive_interval: 30
+          keepalive_probes: "${KEEPALIVE_PROBES}"
+          keepalive_time: "${KEEPALIVE_TIMEOUT}"
+          keepalive_interval: "${KEEPALIVE_INTERVAL}"
       load_assignment:
         cluster_name: xds_cluster
         endpoints: