How can we redirect to port 8080 using reverse proxy servers?
The app is accessible on port 8080 but does not default to port 80 for some reason.
I came up with the following config.
000-default.config
LoadModule proxy_module /usr/lib/apache2/modules/mod_proxy.so
LoadModule proxy_http_module /usr/lib/apache2/modules/mod_proxy_http.so
LoadModule proxy_wstunnel_module /usr/lib/apache2/modules/mod_proxy_wstunnel.so
<VirtualHost *:80>
ProxyPreserveHost On
ProxyRequests Off
ServerName ofornecedor.com.br
ServerAlias http://ofornecedor.com.br
ProxyPass /admin/event ws://localhost:8080/admin/event
ProxyPassReverse /admin/event ws://localhost:8080/admin/event
ProxyPass / http://localhost:8080/
ProxyPassReverse / http://localhost:8080/
</VirtualHost>
/apache2 -k start
├─14831 /usr/sbin/apache2 -k start apache2.service - LSB: Apache2 web server
Loaded: loaded (/etc/init.d/apache2; bad; vendor preset: enabled)
Drop-In: /lib/systemd/system/apache2.service.d
└─apache2-systemd.conf
Active: active (running) since Mon 2018-07-30 11:46:14 UTC; 8s ago
Docs: man:systemd-sysv-generator(8)
Process: 14742 ExecStop=/etc/init.d/apache2 stop (code=exited, status=0/SUCCESS)
Process: 11742 ExecReload=/etc/init.d/apache2 reload (code=exited, status=0/SUCCESS)
Process: 14811 ExecStart=/etc/init.d/apache2 start (code=exited, status=0/SUCCESS)
Tasks: 55
Memory: 6.5M
CPU: 61ms
CGroup: /system.slice/apache2.service
├─14828 /usr/sbin
└─14832 /usr/sbin/apache2 -k start
Jul 30 11:46:13 ip-172-31-13-126 systemd[1]: Starting LSB: Apache2 web server...
Jul 30 11:46:13 ip-172-31-13-126 apache2[14811]: * Starting Apache httpd web server apache2
Jul 30 11:46:13 ip-172-31-13-126 apache2[14811]: [Mon Jul 30 11:46:13.480124 2018] [so:warn] [pid 14827:tid 139956103014272] AH01574: module proxy_module is already loaded, skipping
Jul 30 11:46:13 ip-172-31-13-126 apache2[14811]: [Mon Jul 30 11:46:13.480178 2018] [so:warn] [pid 14827:tid 139956103014272] AH01574: module proxy_http_module is already loaded, skipping
Jul 30 11:46:14 ip-172-31-13-126 apache2[14811]: *
Jul 30 11:46:14 ip-172-31-13-126 systemd[1]: Started LSB: Apache2 web server.
And yes, I have restarted the apache2 after all these changes. 
Do you see anything wrong here? It is not redirecting to port 8080.
Thx in advance.