How do we install dynamic modules (non support officially) on Nginx Ingress Controller? (terraform, helm chart)

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I'm managing Kubernetes + nginx.

I'd like to install dynamic modules on nginx that are provided by Nginx Ingress Controller. Those dynamic modules are not offered by Nginx Ingress Controller official configmap (https://kubernetes.github.io/ingress-nginx/user-guide/nginx-configuration/configmap/)

So I believe, I need to build my own Docker container of Nginx Ingress Controller. (Could be added at this? https://github.com/kubernetes/ingress-nginx/blob/8951b7e22ad3952c549150f61d7346f272c563e1/images/nginx/rootfs/build.sh#L618-L632 )

Do you know how we can customize the controller and manage it by helm chart? I'm thinking about making a Fork branch from the controller master repo on Github. But I don't have any idea on how we install a customized version of the controller on terraform + helm chart.

However, I would prefer to use a non-customizable solution (because of some annotation settings)

Environment: Kubernetes Nginx Ingress Controller is installed by helm chart + terraform Nginx Ingress Controller -> https://github.com/kubernetes/ingress-nginx/tree/main/charts/ingress-nginx

Terraform:

resource "helm_release" "nginx-ingress-controller" {
  name      = "nginx-ingress-controller"
  chart     = "ingress-nginx/ingress-nginx"
  namespace = "kube-system"
  version   = "3.34.0"
}

dynamic modules https://docs.nginx.com/nginx/admin-guide/dynamic-modules/dynamic-modules/ (install process might be using --add-dynamic-module option, and set load_module modules/something.so on nginx.conf via ingress.yaml)

Thank you.

nginx-ingress kubernetes-ingress kubernetes docker nginx
1 Answers

Please take a look at Cloud Native Buildpacks. Images can be built directly from application source without additional instructions.

Maybe this nginx-buildpack solves your problem:

Loading dynamic modules You can use templates to set the path to a dynamic module using the load_module directive.

PS. https://12factor.net/build-release-run

The twelve-factor app uses strict separation between the build, release, and run stages. For example, it is impossible to make changes to the code at runtime, since there is no way to propagate those changes back to the build stage.

user_16799030
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