Add weekly highlights for the week ending on 2021-11-12 (#1200)

* Add weekly highlights for 2021-11-12

* Improve mention on Flux dashboards

* Add more announcements

* Update announcements

* Rephrase

* More specific info on Flux dashboards

Co-authored-by: Kuba Soboń <wtty.fool@gmail.com>

* Update 2021-11-12.md

* Info on flux-app

* Add docs link

* Update src/content/changes/highlights/2021-11-12.md

Co-authored-by: Puja <puja@giantswarm.io>

* Update src/content/changes/highlights/2021-11-12.md

Co-authored-by: Puja <puja@giantswarm.io>

Co-authored-by: Kuba Soboń <wtty.fool@gmail.com>
Co-authored-by: Puja <puja@giantswarm.io>

src/content/changes/highlights/2021-11-12.md

@@ -0,0 +1,32 @@
+---
+date: 2021-11-12T10:00:00
+title: Highlights for the week ending November 12, 2021
+changes_categories:
+  - Highlights
+owner:
+  - https://github.com/orgs/giantswarm/teams/sig-product
+---
+
+## Apps
+
+[Flux](https://github.com/giantswarm/flux-app) v0.7.0 provides the Flux Toolkit version 0.21.0 and adds service discovery labels for Prometheus, so that metrics are scraped.
+
+## User interfaces
+
+In the web UI, we now display if a cluster has upgrades scheduled.
+
+`kubectl gs login` has been improved in several ways. Most importantly, the command now also supports using a service account token for authentication via the `--token` flag. This facilitates creation of workload cluster client certificates especially in automation. ([Docs](https://docs.giantswarm.io/ui-api/kubectl-gs/login/))
+
+Additionally, when creating a client certificate for a workload cluster, the flag `--organization` is now optional as long as the workload cluster name is unique.
+
+`kubectl gs` will also notify you when using an outdated plugin version. When that happens, the new `kubectl gs selfupdate` command allows to update the plugin to the latest version, for those not using Krew.
+
+## Management API
+
+For `kubectl get apps.application.giantswarm.io` (or just `kubectl get apps`) we changed the output columns for the App CRD. With that, for apps installed in workload clusters, you can now differentiate the installed version from the desired version.
+
+In automation, please make sure to use JSON or YAML output of `kubectl get` commands instead if plain text, so your implementation is not affected by a change like the above.
+
+## Monitoring
+
+If you are using Flux CD in the management cluster for your own good, you'll want to check out the two new Grafana dashboards on Flux CD metrics which we added this week. **Flux Cluster Stats** showcases reconcilers and operator data, while **Flux Control Plane** will give you an insight into resource usage, number of API requests, and ongoing operation rates.