Module ngx_http_keyval_module

• Example Configuration
• Directives
• keyval
• keyval_zone

The ngx_http_keyval_module module (1.13.3) creates variables with values taken from key-value pairs managed by the API.

This module is available as part of our commercial subscription.

Example Configuration

http {

    keyval_zone zone=one:32k state=one.keyval;
    keyval $arg_text $text zone=one;
    ...
    server {
        ...
        location / {
            return 200 $text;
        }

        location /api {
            api write=on;
        }
    }
}

Directives

Creates a new $variable whose value is looked up by the key in the key-value database. Strings are matched ignoring the case. The database is stored in a shared memory zone specified by the zone parameter.

Sets the name and size of the shared memory zone that keeps the key-value database. Key-value pairs are managed by the API.

The optional state parameter specifies a file that keeps the current state of the key-value database in the JSON format and makes it persistent across nginx restarts.

The optional timeout parameter (1.15.0) sets the time after which key-value pairs are removed from the zone.

The optional sync parameter (1.15.0) enables synchronization of the shared memory zone. The synchronization requires the timeout parameter to be set.

If the synchronization is enabled, removal of key-value pairs (no matter one or all) will be performed only on a target cluster node. The same key-value pairs on other cluster nodes will be removed upon timeout.