Starting Stunnel with configuration:
pid = /tmp/stunnel.pid
foreground = yes
debug = notice
sslVersion = TLSv1.2
[zookeeper-2181]
client = yes
CAfile = /tmp/cluster-ca.crt
cert = /etc/eto-certs/entity-operator.crt
key = /etc/eto-certs/entity-operator.key
accept = 127.0.0.1:2181
connect = onap-strimzi-zookeeper-client:2181
delay = yes
verify = 2

+ exec /usr/bin/tini -w -e 143 -- /usr/bin/stunnel /tmp/stunnel.conf

2022.06.25 02:52:05 LOG5[ui]: stunnel 5.56 on x86_64-redhat-linux-gnu platform
2022.06.25 02:52:05 LOG5[ui]: Compiled with OpenSSL 1.1.1g FIPS  21 Apr 2020
2022.06.25 02:52:05 LOG5[ui]: Running  with OpenSSL 1.1.1k  FIPS 25 Mar 2021
2022.06.25 02:52:05 LOG5[ui]: Threading:PTHREAD Sockets:POLL,IPv6 TLS:ENGINE,FIPS,OCSP,PSK,SNI
2022.06.25 02:52:05 LOG5[ui]: Reading configuration from file /tmp/stunnel.conf
2022.06.25 02:52:05 LOG5[ui]: UTF-8 byte order mark not detected
2022.06.25 02:52:05 LOG5[ui]: FIPS mode disabled
2022.06.25 02:52:05 LOG4[ui]: Insecure file permissions on /etc/eto-certs/entity-operator.key
2022.06.25 02:52:05 LOG4[ui]: Service [zookeeper-2181] uses "verifyChain" without subject checks
2022.06.25 02:52:05 LOG4[ui]: Use "checkHost" or "checkIP" to restrict trusted certificates
2022.06.25 02:52:05 LOG5[ui]: Configuration successful
2022.06.25 02:52:05 LOG5[0]: Service [zookeeper-2181] accepted connection from 127.0.0.1:38542
2022.06.25 02:52:05 LOG5[0]: s_connect: connected 10.233.51.195:2181
2022.06.25 02:52:05 LOG5[0]: Service [zookeeper-2181] connected remote server from 10.233.69.148:33224
2022.06.25 02:52:05 LOG5[0]: Certificate accepted at depth=0: O=io.strimzi, CN=onap-strimzi-zookeeper