Allow for overriding of proxy/admin listen (#11362)

* Allow for overriding of proxy/admin listen

Signed-off-by: Craig <craig@craigrueda.com>

* Updated README

Signed-off-by: Craig <craig@craigrueda.com>

* Version bump

Signed-off-by: Craig <craig@craigrueda.com>

* Added note on container ports

Signed-off-by: Craig <craig@craigrueda.com>

* Version bump

Signed-off-by: Craig <craig@craigrueda.com>

stable/kong/Chart.yaml

@@ -10,5 +10,5 @@ maintainers:
 name: kong
 sources:
 - https://github.com/Kong/kong
-version: 0.9.3
+version: 0.9.4
 appVersion: 1.0.2

stable/kong/README.md

@@ -96,6 +96,21 @@ and their default values.
 | resources                      | Pod resource requests & limits                                                   | `{}`                |
 | tolerations                    | List of node taints to tolerate                                                  | `[]`                |
 
+### Admin/Proxy listener override
+
+If you specify `env.admin_listen` or `env.proxy_listen`, this chart will use
+the value provided by you as opposed to constructing a listen variable
+from fields like `proxy.http.containerPort` and `proxy.http.enabled`. This allows
+you to be more prescriptive when defining listen directives.
+
+**Note:** Overriding `env.proxy_listen` and `env.admin_listen` will potentially cause 
+`admin.containerPort`, `proxy.http.containerPort` and `proxy.tls.containerPort` to become out of sync, 
+and therefore must be updated accordingly.
+
+I.E. updatating to `env.proxy_listen: 0.0.0.0:4444, 0.0.0.0:4443 ssl` will need 
+`proxy.http.containerPort: 4444` and `proxy.tls.containerPort: 4443` to be set in order 
+for the service definition to work properly.
+
 ### Kong-specific parameters
 
 Kong has a choice of either Postgres or Cassandra as a backend datatstore.

stable/kong/templates/deployment.yaml

@@ -69,6 +69,7 @@ spec:
         image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
         imagePullPolicy: {{ .Values.image.pullPolicy }}
         env:
+        {{- if not .Values.env.admin_listen }}
         {{- if .Values.admin.useTLS }}
         - name: KONG_ADMIN_LISTEN
           value: "0.0.0.0:{{ .Values.admin.containerPort }} ssl"
@@ -76,8 +77,11 @@ spec:
         - name: KONG_ADMIN_LISTEN
           value: 0.0.0.0:{{ .Values.admin.containerPort }}
         {{- end }}
+        {{- end }}
+        {{- if not .Values.env.proxy_listen }}
         - name: KONG_PROXY_LISTEN
           value: {{ template "kong.kongProxyListenValue" . }}
+        {{- end }}
         - name: KONG_NGINX_DAEMON
           value: "off"
         - name: KONG_PROXY_ACCESS_LOG