<VirtualHost *:80>

 ProxyPreserveHost On
 ProxyPass / http://1.2.3.4:8080/
 ProxyPassReverse / http://1.2.3.4:8080/

 ServerName wiki.mydomain.com
 DocumentRoot /var/www/wiki.mydomain.com/

 RewriteEngine on
 RewriteCond %{SERVER_NAME} =wiki.mydomain.com
 RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,NE,R=permanent]

 </VirtualHost>

#Listen 443
 #NameVirtualHost *:443

 <IfModule mod_ssl.c>
 <VirtualHost *:443>

 ProxyPass / http://1.2.3.4:8080/ retry=1 acquire=3000 Keepalive=On
 ProxyPassReverse / http://1.2.3.4:8080/

 ServerName wiki.mydomain.com
 DocumentRoot /var/www/wiki.mydomain.com/

 #MANUALEDITING

 #Header always set Strict-Transport-Security "max-age=31536000; includeSubDomains"

 #/MANUALEDITING

 SSLEngine On
 SSLCertificateFile /etc/letsencrypt/live/wiki.mydomain.com/fullchain.pem
 SSLCertificateKeyFile /etc/letsencrypt/live/wiki.mydomain.com/privkey.pem
 Include /etc/letsencrypt/options-ssl-apache.conf

 </VirtualHost>
 </IfModule>

...
 host: 'https://wiki.mydomain.com'
 port: 8080
 ...

...
 bind_ip = 127.0.0.1,1.2.3.4
 port = 27017
 ...
 # SSL options
 # Enable SSL on normal ports
 #sslOnNormalPorts = true
 # SSL Key file and password
 #sslPEMKeyFile = /etc/letsencrypt/live/wiki.mydomain.com/fullchain.pem
 #sslPEMKeyPassword =  /etc/letsencrypt/live/wiki.mydomain.com/keyfile.pem