Redhat – Cannot Access Virtual Host Via Apache On Localhost

I don't think that there is a way to explicitly invalidate cached items, but here is an example of how to do the rest. Update: As mentioned by Piotr in another answer, there is a cache purge module that you can use. You can also force a refresh of a cached item using nginx's proxy_cache_bypass - see Cherian's answer for more information.

In this configuration, items that aren't cached will be retrieved from example.net and stored. The cached versions will be served up to future clients until they are no longer valid (60 minutes).

Your Cache-Control and Expires HTTP headers will be honored, so if you want to explicitly set an expiration date, you can do that by setting the correct headers in whatever you are proxying to.

There are lots of parameters that you can tune - see the nginx Proxy module documentation for more information about all of this including details on the meaning of the different settings/parameters: http://nginx.org/r/proxy_cache_path

http {
  proxy_cache_path  /var/www/cache levels=1:2 keys_zone=my-cache:8m max_size=1000m inactive=600m;
  proxy_temp_path /var/www/cache/tmp; 


  server {
    location / {
      proxy_pass http://example.net;
      proxy_cache my-cache;
      proxy_cache_valid  200 302  60m;
      proxy_cache_valid  404      1m;
    }
  }
}

You need to use a single virtual host to handle both!

Apache matches vhosts based on the HTTP Host header. Since the hostname is the same regardless of whether a client is accessing redmine or jenkins, both must in the same vhost.

What is happening with your current configuration is that Apache is determining which vhost to match as soon as it sees the Host header. Because 'j' comes before 'r' alphabetically, it is giving priority to your jenkins vhost file, even though both match.

You are trying to match based on the request URI, and proxy accordingly.

The <Proxy> directive already has this functionality built in!

You could use something like the following in a single vhost to accomplish your objective:

<VirtualHost *:80>
ServerAdmin webmaster@domain.com
ServerName sub.domain.com
ProxyRequests Off

<Proxy http://sub.domain.com/jenkins>

    Order deny,allow
    Allow from all

    ProxyPreserveHost off
    ProxyPass http://localhost:8080/jenkins
    ProxyPassReverse http://localhost:8080/jenkins

</Proxy>
<Proxy http://sub.domain.com/redmine>

    Order deny,allow
    Allow from all

    ProxyPreserveHost off
    ProxyPass http://localhost:8081/redmine
    ProxyPassReverse http://localhost:8081/redmine

</Proxy>

</VirtualHost>