proxy_client

The proxy client sends invalidation requests to your caching proxy. The Cache Manager wraps the proxy client and is the usual entry point for application interaction with the caching proxy.

You need to configure a client or define your own service for the cache manager to work.

The proxy client is also directly available as a service (fos_http_cache.proxy_client.default and fos_http_cache.proxy_client.varnish , fos_http_cache.proxy_client.nginx or fos_http_cache.proxy_client.symfony) that you can use directly.

If you need to adjust the proxy client, you can also configure the CacheManager with a custom proxy client that you defined as a service. In that case, you do not need to configure anything in the proxy_client configuration section.

varnish

# app/config/config.yml
fos_http_cache:
    proxy_client:
        varnish:
            servers: 123.123.123.1:6060, 123.123.123.2
            base_url: yourwebsite.com

servers

type: array

Comma-separated list of IP addresses or host names of your caching proxy servers. The port those servers will be contacted defaults to 80; you can specify a different port with :<port>.

When using a multi-server setup, make sure to include all proxy servers in this list. Invalidation must happen on all systems or you will end up with inconsistent caches.

base_url

type: string

The hostname (or base URL) where users access your web application. The base URL may contain a path. If you access your web application on a port other than 80, include that port:

# app/config/config.yml
fos_http_cache:
    proxy_client:
        varnish:
            base_url: yourwebsite.com:8000

Warning

Double-check base_url, for if it is mistyped, no content will be invalidated.

See the FOSHttpCache library docs on how to configure Varnish.

nginx

# app/config/config.yml
fos_http_cache:
    proxy_client:
        nginx:
            servers: 123.123.123.1:6060, 123.123.123.2
            base_url: yourwebsite.com
            purge_location: /purge

For servers and base_url, see above.

purge_location

type: string

Separate location that purge requests will be sent to.

See the FOSHttpCache library docs on how to configure Nginx.

symfony

# app/config/config.yml
fos_http_cache:
    proxy_client:
        symfony:
            servers: 123.123.123.1:6060, 123.123.123.2
            base_url: yourwebsite.com

For servers and base_url, see above.

default

type: enum options: varnish, nginx, symfony

# app/config/config.yml
fos_http_cache:
    proxy_client:
        default: varnish

If there is only one proxy client, it is automatically the default. Only configure this if you configured more than one proxy client.

The default proxy client that will be used by the cache manager. You can configure Nginx, Varnish and Symfony proxy clients in parallel. There is however only one cache manager and it will only use the default client.

Custom Guzzle Client

By default, the proxy client instantiates a Guzzle client to talk with the caching proxy. If you need to customize the requests, for example to send a basic authentication header, you can configure a service and specify that in the guzzle_client option of any of the cache proxy clients. A sample service definition for using basic authentication looks like this:

# app/config/config.yml
acme.varnish.guzzle.client:
    class: Guzzle\Service\Client
    calls:
        - [setDefaultOption, [auth, [%caching_proxy.username%, %caching_proxy.password%, basic ]]]

Caching Proxy Configuration

You need to configure your caching proxy (Varnish or Nginx) to work with this bundle. Please refer to the FOSHttpCache library’s documentation for more information.