## Enable/Disable OpenTracing per Ingress Resource

It is possible to use annotations to enable or disable OpenTracing for a specific Ingress Resource. As mentioned in the prerequisites section, both `opentracing-tracer` and `opentracing-tracer-config` must be configured.

Consider the following two cases:
1. OpenTracing is globally disabled.
   1. To enable OpenTracing for a specific Ingress Resource, use the server snippet annotation:
      ```yaml
      nginx.org/server-snippets: |
          opentracing on;
      ```
   1. To enable OpenTracing for specific paths, (1) you need to use [Mergeable Ingress resources](../examples/mergeable-ingress-types/README.md) and (2) use the location snippets annotation to enable OpenTracing for the paths of a specific Minion Ingress resource:
      ```yaml
      nginx.org/location-snippets: |
          opentracing on;
      ```