I have a Spring Boot application that runs on a Amazon Linux server. I use Apache HTTP server as a proxy server for this application. Recently I installed Let's Encrypt SSL certificate and added a virtual host entry on Apache for that. However, I cannot get it to work with Spring Boot properly. No SSL version seems to be working fine though.
What I observed is that the requests comes to the Spring Boot application when a user calls the https version of it, but user receives a HTTP 404 error from Apache. For example this works fine: http://example.com/oauth/token but this does not work and return 404: https://example.com/oauth/token
I posted the config files below, what am I missing?
vhosts.conf
<VirtualHost *:443> ServerName example.com ServerAlias www.example.com ServerAdmin [email protected] DocumentRoot /var/www/example.com/public_html ErrorLog /var/www/example.com/logs/error.log CustomLog /var/www/example.com/logs/access.log combined RewriteEngine On RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI} -f [OR] RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI} -d RewriteRule ^ - [L] RewriteRule ^(/api/v1) - [L] RewriteRule ^(/oauth/token) - [L] RewriteRule ^ /index.html [L] SSLEngine on SSLCertificateFile /var/www/example.com/cert/cert.pem SSLCertificateKeyFile /var/www/example.com/cert/privkey.pem ProxyPreserveHost on RequestHeader set X-Forwarded-Proto https RequestHeader set X-Forwarded-Port 443 ProxyPass /api/v1 http://127.0.0.1:8080/api/v1 ProxyPassReverse /api/v1 http://127.0.0.1:8080/api/v1 ProxyPass /oauth/token http://127.0.0.1:8080/oauth/token ProxyPassReverse /oauth/token http://127.0.0.1:8080/oauth/token </VirtualHost> <VirtualHost *:80> ServerName example.com ServerAlias www.example.com ServerAdmin [email protected] DocumentRoot /var/www/example.com/public_html ErrorLog /var/www/example.com/logs/error.log CustomLog /var/www/example.com/logs/access.log combined RewriteEngine On RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI} -f [OR] RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI} -d RewriteRule ^ - [L] RewriteRule ^(/api/v1) - [L] RewriteRule ^(/oauth/token) - [L] RewriteRule ^ /index.html [L] ProxyPreserveHost on ProxyPass /api/v1 http://127.0.0.1:8080/api/v1 ProxyPassReverse /api/v1 http://127.0.0.1:8080/api/v1 ProxyPass /oauth/token http://127.0.0.1:8080/oauth/token ProxyPassReverse /oauth/token http://127.0.0.1:8080/oauth/token </VirtualHost> application.properties
server.context-path=/api/v1 server.address=127.0.0.1 server.port=8080 server.use-forward-headers=true server.tomcat.remote_ip_header=x-forwarded-for server.tomcat.protocol_header=x-forwarded-proto 
