This example shows how to configure the available settings for 51Degrees' on-premise device detection in Varnish. This example is available in full on GitHub.
This example requires a local data file. Free data files can be acquired by pulling the submodules under this repository or from the device-detection-data GitHub repository.
The path to the data need to be updated before running the example.
In a Linux environment, the following commands:
$ curl localhost:8080 -I -A "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.97 Safari/537.36"
Expected output:
HTTP/1.1 200 OK
...
X-Metadata: False:55:0:0:PREDICTIVE:__zilla/5.0 (Windows____10.0; Win6_______________________________________________Chrome/7_.0.3904__7 Safari/5_____:23:15364-38914-97847-18092
vcl 4.0;
import fiftyonedegrees;
backend default {
.host = "127.0.0.1";
.port = "80";
}
sub vcl_deliver {
set resp.http.X-Metadata = fiftyonedegrees.match_all("IsMobile,Iterations,Drift,Difference,Method,UserAgents,MatchedNodes,DeviceId");
}
sub vcl_init {
fiftyonedegrees.set_delimiter(":");
fiftyonedegrees.set_drift(10);
fiftyonedegrees.set_difference(8);
fiftyonedegrees.set_max_concurrency(5);
fiftyonedegrees.set_allow_unmatched("YES");
fiftyonedegrees.set_use_performance_graph("NO");
fiftyonedegrees.set_use_predictive_graph("YES");
fiftyonedegrees.start("/etc/varnish/51Degrees-LiteV4.1.hash");
}