docs(common): Update documentation for 2.0.1

charts/other/app-template/README.md.gotmpl

@@ -37,6 +37,9 @@ The [CI tests](../../library/common-test/ci) contain a number of scenarios that
 
 ### From 1.x.x to 2.0.x
 
+> :warning: **IMPORTANT** Because a new label has been introduced in the controller labelSelector (which is an immutable field), Deployments cannot be upgraded in place!
+> [More details](https://www.datree.io/resources/kubernetes-error-codes-field-is-immutable)
+
 Given the following real-life example values.yaml for app-template v1:
 
 <details>
@@ -66,6 +69,10 @@ ingress:
   main:
     enabled: true
     ingressClassName: "ingress-nginx"
+    hosts:
+      - host: sabnzbd.bjw-s.dev
+        paths:
+          - path: /
 
 persistence:
   media:
@@ -123,6 +130,13 @@ ingress:
   main:
     enabled: true
     className: "ingress-nginx"
+    hosts:
+      - host: sabnzbd.bjw-s.dev
+        paths:
+          - path: /
+            service:
+              name: main
+              port: http
 
 persistence:
   media:
@@ -139,6 +153,7 @@ This is not meant as an exhaustive list of changes, but rather a "most common" e
 - `image` has been moved to `controllers.main.containers.main.image` so that multiple containers can be configured.
 - `ingress.main.ingressClassName` has been renamed to `ingress.main.className`.
 - `ingress.main.enabled` can be removed, since items are considered enabled by default (they can still be disabled by adding `enabled: false`).
+- `ingress.main.hosts.*.paths.*.service` is now required since there is no more concept of a default "primary" service.
 - `persistence.media.mountPath` has been moved to `persistence.media.globalMounts.*.path` to allow multiple mountPaths for the same persistence item.
 - `persistence.media.enabled` can be removed, since items are considered enabled by default (they can still be disabled by adding `enabled: false`).
 - `probes` has been moved to `controllers.main.containers.main.probes` so that multiple containers can be configured.