docs: longhaul dashboard page (dapr#4838)

* docs: longhaul dashboard page

closes dapr#4780

Signed-off-by: Mike Nguyen <[email protected]>

* docs:fix typo

Co-authored-by: Marc Duiker <[email protected]>
Signed-off-by: Mike Nguyen <[email protected]>

* Update daprdocs/content/en/operations/observability/_index.md

Signed-off-by: Mark Fussell <[email protected]>

---------

Signed-off-by: Mike Nguyen <[email protected]>
Signed-off-by: Mark Fussell <[email protected]>
Co-authored-by: Marc Duiker <[email protected]>
Co-authored-by: Mark Fussell <[email protected]>

Author: 3 people

daprdocs/content/en/operations/observability/_index.md

@@ -16,3 +16,9 @@ description: See and measure the message calls to components and between network
  - Review the [Observability API reference documentation]({{% ref health_api.md %}}).
  - Read the [general overview of the observability concept]({{% ref observability-concept %}}) in Dapr.
 {{% /alert %}}
+
+{{% alert title="Dapr Observability in Action!" color="primary" %}}
+Dapr has a public Grafana dashboard demonstrating observability in action on the longhaul testing environment.
+ - [Dapr Public Grafana Dashboard](https://dapr.grafana.net/public-dashboards/86d748b233804e74a16d8243b4b64e18)
+ - Read more about: [Longhaul performance and stability]({{% ref perf-longhaul.md %}})
+  {{% /alert %}}

daprdocs/content/en/operations/performance-and-scalability/perf-longhaul.md

@@ -0,0 +1,49 @@
+---
+type: docs
+title: "Longhaul performance and stability"
+linkTitle: "Longhaul performance and stability"
+weight: 10000
+description: ""
+---
+
+This article provides longhaul performance and stability benchmarks for Dapr on Kubernetes.
+
+The longhaul tests are designed to run for a period of a week, validating the stability of Dapr and its components, while measuring resource utilization and performance over time.
+
+## Public Dashboard
+
+You can access the live longhaul test results on the public Grafana dashboard. This dashboard is updated in near real-time, showing the latest results from the longhaul tests.
+ 
+[Dapr Longhaul Dashboard](https://dapr.grafana.net/public-dashboards/86d748b233804e74a16d8243b4b64e18).
+
+## System overview
+
+The longhaul environment is run on a 3 node managed Azure Kubernetes Service (AKS) cluster, using standard D2s_v5 nodes running 2 cores and 8GB of RAM, with network acceleration.
+
+## Test Applications
+
+- Feed generator
+- Hashtag Actor
+- Hashtag counter
+- Message Analyzer
+- Pubsub Workflow
+- Streaming Pubsub Publisher / Producer
+- Streaming Pubsub Subscriber / Consumer
+- Snapshot App
+- Validation Worker App
+- Scheduler Jobs App
+- Workflow Gen App
+- Scheduler Actor Reminders - Client
+- Scheduler Actor Reminders - Server
+- Scheduler Workflow App
+
+## Redeployments
+
+The longhaul test environment is redeployed every 7 days (Fridays at 08:00 UTC).
+
+## Test Infrastructure
+
+The test infrastructure is sourced from this [GitHub repository](https://github.com/dapr/test-infra).
+
+It is a mixture of Bicep IaC templates and Helm charts to deploy the test applications and Dapr.
+