Cherry pick recent documentation changes (#2815)

This commit cherry-picks changes from 3 recent documentation PRs from
main to the 1.5 release branch. More specifically, the work in the following PRs:

-  Update support referencing support package tool #2789
- Docs: remove () typo from troubleshooting doc #2803
- Clear up installation language #2808

---------

Co-authored-by: Madhu Rajagopal <[email protected]>
Co-authored-by: Saylor Berman <[email protected]>
Co-authored-by: nginx-aoife <[email protected]>

Author: 4 people

site/content/how-to/monitoring/troubleshooting.md

@@ -469,7 +469,7 @@ If you check your _nginx_ container logs and see the following error:
 
 It indicates that `proxy_protocol` is enabled for the gateway listeners, but the request sent to the application endpoint does not contain proxy information. To **resolve** this, you can do one of the following:
 
-- Unassign the field [`rewriteClientIP.mode`](({{< relref "reference/api.md" >}})) in the NginxProxy configuration.
+- Unassign the field [`rewriteClientIP.mode`]({{< relref "reference/api.md" >}}) in the NginxProxy configuration.
 
 - Send valid proxy information with requests being handled by your application.
 

site/content/installation/installing-ngf/helm.md

@@ -49,6 +49,8 @@ To complete this guide, you'll need to install:
 
 ### Install from the OCI registry
 
+The following steps install NGINX Gateway Fabric directly from the OCI helm registry. If you prefer, you can [install from sources](#install-from-sources) instead.
+
 {{<tabs name="install-helm-oci">}}
 
 {{%tab name="NGINX"%}}
@@ -68,7 +70,7 @@ helm install ngf oci://ghcr.io/nginxinc/charts/nginx-gateway-fabric --create-nam
 To install the latest stable release of NGINX Gateway Fabric in the **nginx-gateway** namespace, run the following command:
 
 ```shell
-helm install ngf oci://ghcr.io/nginxinc/charts/nginx-gateway-fabric  --set nginx.image.repository=private-registry.nginx.com/nginx-gateway-fabric/nginx-plus --set nginx.plus=true --set serviceAccount.imagePullSecret=nginx-plus-registry-secret --create-namespace -n nginx-gateway
+helm install ngf oci://ghcr.io/nginxinc/charts/nginx-gateway-fabric  --set nginx.image.repository=private-registry.nginx.com/nginx-gateway-fabric/nginx-plus --set nginx.plus=true --set serviceAccount.imagePullSecret=nginx-plus-registry-secret -n nginx-gateway
 ```
 
 {{% /tab %}}
@@ -77,7 +79,7 @@ helm install ngf oci://ghcr.io/nginxinc/charts/nginx-gateway-fabric  --set nginx
 
 `ngf` is the name of the release, and can be changed to any name you want. This name is added as a prefix to the Deployment name.
 
-If the namespace already exists, you can omit the optional `--create-namespace` flag. If you want the latest version from the **main** branch, add `--version 0.0.0-edge` to your install command.
+If you want the latest version from the **main** branch, add `--version 0.0.0-edge` to your install command.
 
 To wait for the Deployment to be ready, you can either add the `--wait` flag to the `helm install` command, or run the following after installing:
 
@@ -87,6 +89,7 @@ kubectl wait --timeout=5m -n nginx-gateway deployment/ngf-nginx-gateway-fabric -
 
 ### Install from sources {#install-from-sources}
 
+If you prefer to install directly from sources, instead of through the OCI helm registry, use the following steps.
 
 {{<include "installation/helm/pulling-the-chart.md" >}}
 
@@ -109,7 +112,7 @@ helm install ngf . --create-namespace -n nginx-gateway
 To install the chart into the **nginx-gateway** namespace, run the following command:
 
 ```shell
-helm install ngf . --set nginx.image.repository=private-registry.nginx.com/nginx-gateway-fabric/nginx-plus --set nginx.plus=true --set serviceAccount.imagePullSecret=nginx-plus-registry-secret --create-namespace -n nginx-gateway
+helm install ngf . --set nginx.image.repository=private-registry.nginx.com/nginx-gateway-fabric/nginx-plus --set nginx.plus=true --set serviceAccount.imagePullSecret=nginx-plus-registry-secret -n nginx-gateway
 ```
 
 {{% /tab %}}
@@ -118,8 +121,6 @@ helm install ngf . --set nginx.image.repository=private-registry.nginx.com/nginx
 
    `ngf` is the name of the release, and can be changed to any name you want. This name is added as a prefix to the Deployment name.
 
-   If the namespace already exists, you can omit the optional `--create-namespace` flag.
-
    To wait for the Deployment to be ready, you can either add the `--wait` flag to the `helm install` command, or run the following after installing:
 
    ```shell
@@ -212,6 +213,8 @@ To upgrade the CRDs, take the following steps:
 {{< important >}} NGINX Plus users that are upgrading from version 1.4.0 to 1.5.0 need to install an NGINX Plus JWT
 Secret before upgrading. Follow the steps in the [Before you begin](#before-you-begin) section to create the Secret. If you use a different name than the default `nplus-license` name, specify the Secret name by setting `--set nginx.usage.secretName=<secret-name>` when running `helm upgrade`. {{</ important >}}
 
+There are two possible ways to upgrade NGINX Gateway Fabric. You can either upgrade from the OCI registry, or download the chart and upgrade from the source.
+
 #### Upgrade from the OCI registry
 
 - To upgrade to the latest stable release of NGINX Gateway Fabric, run:

site/content/installation/nginx-plus-jwt.md

@@ -83,6 +83,8 @@ and the following volume mount to the `nginx` container:
 
 {{</tabs>}}
 
+**If you are reporting to the default licensing endpoint, then you can now proceed with [installing NGINX Gateway Fabric]({{< relref "installation/installing-ngf" >}}). Otherwise, follow the steps below to configure reporting to NGINX Instance Manager.**
+
 ### Reporting to NGINX Instance Manager {#nim}
 
 If you are deploying NGINX Gateway Fabric in an environment where you need to report to NGINX Instance Manager instead of the default licensing endpoint, a few extra steps may be required.

site/content/support.md

@@ -5,7 +5,27 @@ weight: 600
 docs: "DOCS-1411"
 ---
 
-NGINX Gateway Fabric adheres to the support policy detailed in the following knowledge base article: [K000140156](https://my.f5.com/manage/s/article/K000140156).
+F5 NGINX Gateway Fabric adheres to the support policy detailed in the following knowledge base article: [K000140156](https://my.f5.com/manage/s/article/K000140156).
+
+After opening a support ticket, F5 staff will request additional information to better understand the problem.
+
+The [nginx-supportpkg-for-k8s](https://github.com/nginxinc/nginx-supportpkg-for-k8s) plugin collects the information needed by F5 Technical Support to assist with troubleshooting your issue.
+
+The plugin uses [krew](https://krew.sigs.k8s.io), the plugin manager for the Kubernetes [kubectl](https://kubernetes.io/docs/reference/kubectl/) command-line tool.
+
+The plugin may collect some or all of the following global and namespace-specific information:
+
+- Kubernetes version and information about Nodes and Custom Resources
+- Kubernetes metrics
+- Helm deployments
+- List of Pods, Events, ConfigMaps, Services, Deployments, Daemonsets, StatefulSets, ReplicaSets, and Leases
+- Pod log output
+- `nginx -T` output from NGINX-related Pods
+
+This plugin **does not** collect secrets or coredumps.
+
+Visit the [project’s GitHub repository](https://github.com/nginxinc/nginx-supportpkg-for-k8s) for further details.
+
 
 **Support Channels:**