Apache, Tomcat & SSL: ProxyPass and ProxyPassReverse

Question

I'am having troubles configuring Apache, Tomcat and SSL, this is the scenario:

I have an Apache Web Server, running and working normally (but , I can access to this one just typing:

https://example.com

Also, in this host, I have a Tomcat running and working fine in port 8080 (HTTP); I've created a mini web-app which files are inside "test" directory, I can access typing:

http://example.com:8080/test

(I know that Apache is running in 80 port and Tomcat in 8080)

What I want to do is that througt Apache an user can access to 'test' (running on Tomcat) using HTTPS, I mean:

https://example.com/test

But when I access this link appers this:

When I access using HTTP http://example/test works, but I need that be HTTPS.

I also create a file config in /etc/httpd/conf.d/vhost.conf , this is the content:

<VirtualHost *:80>
    ServerName www.example.com
    DocumentRoot /var/www/html
    Redirect permanent / https://example.com/
</VirtualHost>

<VirtualHost *:443>
    ServerName www.example.com
    DocumentRoot /var/www/html

    SSLEngine on
    SSLCertificateFile /etc/letsencrypt/live/example.com/cert.pem
    SSLCertificateKeyFile /etc/letsencrypt/live/example.com/privkey.pem
    SSLCertificateChainFile /etc/letsencrypt/live/example.com/chain.pem

    SSLProxyEngine on
    ProxyPass /test http://xxx.xxx.xxx.xxx:8080/test
    ProxyPassReverse /test http://xxx.xxx.xxx.xxx:8080/test
</VirtualHost>

xxx.xxx.xxx.xxx is the IP of website.

When I access the website https://example.com/ (with HTTPS) I got this issue (I use the web-app in the website):

I use certificate Let's Encrypt (in the photo above).

I'm working with Apache/2.4.33 (Amazon) and Tomcat 8.5.29

Has anyone knows why or how solve this? Thanks in advance guys.

Log files:

access_log

yyy.yyy.yyy.yyy - - [01/Jul/2018:06:42:29 +0000] "GET /test HTTP/1.1" 301 245 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36"
::1 - - [01/Jul/2018:06:42:51 +0000] "OPTIONS * HTTP/1.0" 200 - "-" "Apache/2.4.33 (Amazon) OpenSSL/1.0.2k-fips PHP/7.0.30 (internal dummy connection)"

error_log - empty

ssl_access_log

yyy.yyy.yyy.yyy - - [01/Jul/2018:06:42:29 +0000] "GET /test HTTP/1.1" 404 206
yyy.yyy.yyy.yyy - - [01/Jul/2018:06:42:29 +0000] "GET /test HTTP/1.1" 404 206
yyy.yyy.yyy.yyy - - [01/Jul/2018:06:42:49 +0000] "-" 408 -
yyy.yyy.yyy.yyy - - [01/Jul/2018:06:42:49 +0000] "-" 408 -
yyy.yyy.yyy.yyy - - [01/Jul/2018:06:42:49 +0000] "-" 408 -
yyy.yyy.yyy.yyy - - [01/Jul/2018:06:42:49 +0000] "-" 408 -

ssl_request_log

[01/Jul/2018:06:42:29 +0000] yyy.yyy.yyy.yyy TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 "GET /test HTTP/1.1" 206
[01/Jul/2018:06:42:29 +0000] yyy.yyy.yyy.yyy TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 "GET /test HTTP/1.1" 206
[01/Jul/2018:06:42:49 +0000] yyy.yyy.yyy.yyy TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 "-" -
[01/Jul/2018:06:42:49 +0000] yyy.yyy.yyy.yyy TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 "-" -
[01/Jul/2018:06:42:49 +0000] yyy.yyy.yyy.yyy TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 "-" -
[01/Jul/2018:06:42:49 +0000] yyy.yyy.yyy.yyy TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 "-" -

ssl_error_log - empty

yyy.yyy.yyy.yyy = IP of my machine

Answer 1

There are 4 problem with the code

First: Problem with the port .Https works on port 443 and http on port 80

 <VirtualHost *:443> 
    ServerName www.example.com
    DocumentRoot /var/www/html 
    ###Remove this redirection line to move it in separate virtual host listening to port 80
    Redirect permanent / https://example.com/
    SSLProxyEngine on
    ProxyPass /test http://xxx.xxx.xxx.xxx:8080/test
    ProxyPassReverse /test http://xxx.xxx.xxx.xxx:8080/test 
 </VirtualHost>

Second: Not having SSLProxyEngine on so that proxy pass and proxy reverse pass works for https connection.

Third: Remove the redirection rule of https from this virtual host to a new one.You need to create a new virtual host for port 80 in which there should be a redirect rule in which all http connections redirect to https permanently.

Redirect permanent / https://example.com/

Fourth: Also add below to all virtual host

ServerName example.com 
ServerAlias www.example.com

Answer 2

The result file /etc/httpd/conf.d/vhost.conf :

<VirtualHost *:80>
    ServerName www.example.com
    ServerAlias example.com
    DocumentRoot /var/www/html
    Redirect permanent / https://example.com/
</VirtualHost>

<VirtualHost *:443>
    ServerName www.example.com
    ServerAlias example.com
    DocumentRoot /var/www/html

    SSLEngine on
    SSLCertificateFile /etc/letsencrypt/live/example.com/cert.pem
    SSLCertificateKeyFile /etc/letsencrypt/live/example.com/privkey.pem
    SSLCertificateChainFile /etc/letsencrypt/live/example.com/chain.pem

    SSLProxyEngine on
    ProxyPass /test http://xxx.xxx.xxx.xxx:8080/test
    ProxyPassReverse /test http://xxx.xxx.xxx.xxx:8080/test
</VirtualHost>