When routes are created more than 80, SSL connections between OAuth Proxy container and HAProxy are disconnected with the following error messages

2022/12/15 21:37:01 server.go:3120: http: TLS handshake error from 10.128.18.27:47142: write tcp 10.128.10.57:8443->10.128.18.27:47142: write: connection reset by peer 

With Model serving with 100 connections made OAuth proxy container failed so model serving pod failed too.

Always

git clone https://github.com/Jooho/jhouse_openshift.git
cd jhouse_openshift/OAuthProxy/https-reencrypt 

oc new-project oauth-proxy
oc new-app -S php -n oauth-proxy
oc new-app --template=cakephp-mysql-example -n oauth-proxy
oc apply -f ./
oc replace -f ./svc-cakephp-mysql-example.yaml
oc scale dc/cakephp-mysql-example --replicas=2

# Wait until all pods are running. 
export Token=$(oc sa new-token user-one)
export URL=$(oc get route cakephp-mysql-example -ojsonpath='{.spec.host}')
curl -o /dev/null -I -w "%{http_code}"  --silent --location --fail --show-error --insecure https://${URL}/ -H "Authorization: Bearer ${Token}"

# Start reproducing the error
cat <<EOF> /tmp/cakephp.yaml
apiVersion: route.openshift.io/v1
kind: Route
metadata:
  labels:
    app: cakephp-mysql-example
    template: cakephp-mysql-example
  name: cakephp-mysql-example
  namespace: oauth-proxy
spec:
  port:
    targetPort: oauth-https
  tls:
    insecureEdgeTerminationPolicy: Redirect
    termination: reencrypt
  to:
    kind: Service
    name: cakephp-mysql-example
    weight: 100
  wildcardPolicy: None
EOF

for i in {1..100} ; do sed "7s/name:.*/name: cakephp-mysql-example-$i/g" /tmp/cakephp.yaml |oc apply -f - ; done

# Check the error
oc logs dc/cakephp-mysql-example  -c oauth-proxy

Disconnected connections between OAuth Proxy and HAProxy

No errors happen

When I set replica of Router to 1, the issue was gone. However, if I increased it to 3, the issue was still around. So I don't think it is resource limitation issue.