[GitHub] [apisix-ingress-controller] tokers commented on issue #139: The ingress controller does not support listening to specified namespaces

[GitBox <gi...@apache.org>]

tokers commented on issue #139:
URL: https://github.com/apache/apisix-ingress-controller/issues/139#issuecomment-752333608


   We need the capable to configure the watched namespaces from command line options and configuration file.
   
   For command line options, we can add a `--watch-namespace` option.
   
   ```
   apisix-ingress-controller ingress --watch-namespace bookinfo --watch-namespace default --watch-namespace apisix-gw
   ```
   
   For configuration file, add a `watch_namespaces` array.
   
   ```yaml
   kubernetes:
     watch_namespaces:
     - bookinfo
     - default
     - apisix-gw
   ```
    `SharedIndexInformerFactory` can be created with only one namespace, it's not so strong to satisfy some complex deployments. so we may need to watch resources in all namespaces, but drop some of them if the namespace is not desired when get events from informers. Say the route, we should add the namespace filtering here:
   
   ![image](https://user-images.githubusercontent.com/10428333/103332055-8ff11c00-4aa3-11eb-8bcf-decf5a5ad63f.png)


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