Jail/chroot nginx process inside controller container (#8337)

* Initial work on chrooting nginx process

* More improvements in chroot

* Fix charts and some file locations

* Fix symlink on non chrooted container

* fix psp test

* Add e2e tests to chroot image

* Fix logger

* Add internal logger in controller

* Fix overlay for chrooted tests

* Fix tests

* fix boilerplates

* Fix unittest to point to the right pid

* Fix PR review

charts/ingress-nginx/templates/controller-deployment.yaml

@@ -78,7 +78,7 @@ spec:
       containers:
         - name: {{ .Values.controller.containerName }}
           {{- with .Values.controller.image }}
-          image: "{{- if .repository -}}{{ .repository }}{{ else }}{{ .registry }}/{{ .image }}{{- end -}}:{{ .tag }}{{- if (.digest) -}} @{{.digest}} {{- end -}}"
+          image: "{{- if .repository -}}{{ .repository }}{{ else }}{{ .registry }}/{{ include "ingress-nginx.image" . }}{{- end -}}:{{ .tag }}{{ include "ingress-nginx.imageDigest" . }}"
           {{- end }}
           imagePullPolicy: {{ .Values.controller.image.pullPolicy }}
         {{- if .Values.controller.lifecycle }}