apxs -cia mod_rcache.c  -lcurl -lhiredis

RewriteEngine On

<IfModule rcache_module>
RedisHostname localhost
RedisPort 6379
RedisCachePrefix R:
RedisCachePrefixWaitFlag RW:
RedisCacheEnvRetrieveUrl RETURL
</IfModule>

<Location "/foo/">
SetHandler rcache
</Location>

RewriteRule ^/(.*)$ /foo/$1 [E=ENVTEST:http://$1,PT]

curl http://localhost:8080/foo.baa.example/ -LI