How to load a custom module to an ingress-nginx deployment?

[varkey98]

We have a custom module that we deploy to our nginx deployments? How can we load the same module to ingress-nginx deployments? We we using a custom lua plugin in place of it till now, but looks like that support got stopped and now we would like to load the ingress-nginx deployment with our custom nginx module

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[varkey98]

I tried using main-snippets directive in the config map, but did not work for me

[longwuyuan]

We don't support loading custom modules because of difficulty in supporting and securing the controller with custom modules. You can look up older issues where others have tried and/or succeeded.

[Gacko]

You can define an image which is being used as init container here:

https://github.com/kubernetes/ingress-nginx/blob/main/charts/ingress-nginx/values.yaml#L712

This image needs to contain the script described in the footer of the value. This script is then being executed on startup. You can also use distroless images, the binary executed changes to /init_module then.

https://github.com/kubernetes/ingress-nginx/blob/main/charts/ingress-nginx/templates/_helpers.tpl#L247