Define Let’s Encrypt SSL to Tomcat

cd /etc/letsencrypt/live/exampledomain.com
ls
openssl pkcs12 -export -out bundle.pfx -inkey privkey.pem -in cert.pem 
ls
mv bundle.pfx /opt/tomcat/bundle.pfx 
ll /opt/tomcat/bundle.pfx 
ll /opt/tomcat/
cd /opt/tomcat/conf
nano server.xml

<Connector protocol="org.apache.coyote.http11.Http11NioProtocol"
 port="8443" maxThreads="2048" scheme="https"
 secure="true" acceptCount="2048"
 SSLEnabled="true" clientAuth="false"
 keystoreType="PKCS12" keystoreFile="/opt/tomcat/bundle.pfx"
 keystorePass="YOURPASSWORD" sslProtocol="TLS" />

chown tomcat:tomcat /opt/tomcat/bundle.pfx 
systemctl restart tomcat