Added New Relic How-to docs (#951)

* Added New Relic How-to docs

* Added New Relic How-to docs

* Completely reworked the New Relic docs

Co-authored-by: Harry Kimpel <hkimpel@newrelic.com>
Co-authored-by: Ori Zohar <orzohar@microsoft.com>

daprdocs/content/en/operations/monitoring/newrelic.md

@@ -0,0 +1,117 @@
+---
+type: docs
+title: "How-To: Set-up New Relic for Dapr observability"
+linkTitle: "New Relic"
+weight: 2000
+description: "Set-up New Relic for Dapr observability"
+---
+
+## Prerequisites
+
+- Perpetually [free New Relic account](https://newrelic.com/signup), 100 GB/month of free data ingest, 1 free full access user, unlimited free basic users
+
+## Configure Zipkin Exporter
+
+Dapr natively captures metrics and traces that can be send directly to New Relic. The easiest way to export these is by providing a Zipkin exporter configured to send the traces to [New Relic's Trace API](https://docs.newrelic.com/docs/understand-dependencies/distributed-tracing/trace-api/report-zipkin-format-traces-trace-api#existing-zipkin).
+
+In order for the integration to send data to New Relic [Telemetry Data Platform](https://newrelic.com/platform/telemetry-data-platform), you need a [New Relic Insights Insert API key](https://docs.newrelic.com/docs/apis/get-started/intro-apis/types-new-relic-api-keys#insights-insert-key). 
+
+```yaml
+apiVersion: dapr.io/v1alpha1
+kind: Component
+metadata:
+  name: zipkin
+  namespace: default
+spec:
+  type: exporters.zipkin
+  metadata:
+    - name: enabled
+      value: "true"
+    - name: exporterAddress
+      value: "https://trace-api.newrelic.com/trace/v1?Api-Key=<NR-INSIGHTS-INSERT-API-KEY>&Data-Format=zipkin&Data-Format-Version=2"
+```
+
+### Viewing Traces
+
+New Relic Distributed Tracing overview
+![New Relic Kubernetes Cluster Explorer App](/images/nr-distributed-tracing-overview.png)
+
+New Relic Distributed Tracing details
+![New Relic Kubernetes Cluster Explorer App](/images/nr-distributed-tracing-detail.png)
+
+## (optional) New Relic Instrumentation
+
+In order for the integrations to send data to New Relic Telemetry Data Platform, you either need a [New Relic license key](https://docs.newrelic.com/docs/accounts/accounts-billing/account-setup/new-relic-license-key) or [New Relic Insights Insert API key](https://docs.newrelic.com/docs/apis/get-started/intro-apis/types-new-relic-api-keys#insights-insert-key). 
+
+### OpenTelemetry instrumentation
+
+Leverage the different language specific OpenTelemetry implementations, for example [New Relic Telemetry SDK and OpenTelemetry support for .NET](https://github.com/newrelic/newrelic-telemetry-sdk-dotnet). In this case, use the [OpenTelemetry Trace Exporter](https://github.com/newrelic/newrelic-telemetry-sdk-dotnet/tree/main/src/NewRelic.OpenTelemetry). See example [here](https://github.com/harrykimpel/quickstarts/blob/master/distributed-calculator/csharp-otel/Startup.cs).
+
+### New Relic Language agent
+
+Similarly to the OpenTelemetry instrumentation, you can also leverage a New Relic language agent. As an example, the [New Relic agent instrumentation for .NET Core](https://docs.newrelic.com/docs/agents/net-agent/installation/install-docker-container) is part of the Dockerfile. See example [here](https://github.com/harrykimpel/quickstarts/blob/master/distributed-calculator/csharp/Dockerfile).
+
+## (optional) Enable New Relic Kubernetes integration
+
+In case Dapr and your applications run in the context of a Kubernetes environment, you can enable additional metrics and logs.
+
+The easiest way to install the New Relic Kubernetes integration is to use the [automated installer](https://one.newrelic.com/launcher/nr1-core.settings?pane=eyJuZXJkbGV0SWQiOiJrOHMtY2x1c3Rlci1leHBsb3Jlci1uZXJkbGV0Lms4cy1zZXR1cCJ9) to generate a manifest. It bundles not just the integration DaemonSets, but also other New Relic Kubernetes configurations, like [Kubernetes events](https://docs.newrelic.com/docs/integrations/kubernetes-integration/kubernetes-events/install-kubernetes-events-integration), [Prometheus OpenMetrics](https://docs.newrelic.com/docs/integrations/prometheus-integrations/get-started/new-relic-prometheus-openmetrics-integration-kubernetes), and [New Relic log monitoring](https://docs.newrelic.com/docs/logs).
+
+### New Relic Kubernetes Cluster Explorer
+
+The [New Relic Kubernetes Cluster Explorer](https://docs.newrelic.com/docs/integrations/kubernetes-integration/understand-use-data/kubernetes-cluster-explorer) provides a unique visualization of the entire data and deployments of the data collected by the Kubernetes integration.
+
+It is a good starting point to observe all your data and dig deeper into any performance issues or incidents happening inside of the application or microservices.
+
+![New Relic Kubernetes Cluster Explorer App](/images/nr-k8s-cluster-explorer-app.png)
+
+Automated correlation is part of the visualization capabilities of New Relic.
+
+### Pod-level details
+
+![New Relic K8s Pod Level Details](/images/nr-k8s-pod-level-details.png)
+
+### Logs in Context
+
+![New Relic K8s Logs In Context](/images/nr-k8s-logs-in-context.png)
+
+## New Relic Dashboards
+
+### Kubernetes Overview
+
+![New Relic Dashboard Kubernetes Overview](/images/nr-dashboard-k8s-overview.png)
+
+### Dapr System Services
+
+![New Relic Dashboard Dapr System Services](/images/nr-dashboard-dapr-system-services.png)
+
+### Dapr Metrics
+
+![New Relic Dashboard Dapr Metrics 1](/images/nr-dashboard-dapr-metrics-1.png)
+
+## New Relic Grafana integration
+
+New Relic teamed up with [Grafana Labs](https://grafana.com/) so you can use the [Telemetry Data Platform](https://newrelic.com/platform/telemetry-data-platform) as a data source for Prometheus metrics and see them in your existing dashboards, seamlessly tapping into the reliability, scale, and security provided by New Relic.
+
+[Grafana dashboard templates](https://github.com/dapr/dapr/blob/227028e7b76b7256618cd3236d70c1d4a4392c9a/grafana/README.md) to monitor Dapr system services and sidecars can easily be used without any changes. New Relic provides a [native endpoint for Prometheus metrics](https://docs.newrelic.com/docs/integrations/grafana-integrations/set-configure/configure-new-relic-prometheus-data-source-grafana) into Grafana. A datasource can easily be set-up:
+
+![New Relic Grafana Data Source](/images/nr-grafana-datasource.png)
+
+And the exact same dashboard templates from Dapr can be imported to visualize Dapr system services and sidecars.
+
+![New Relic Grafana Dashboard](/images/nr-grafana-dashboard.png)
+
+## New Relic Alerts
+
+All the data that is collected from Dapr, Kubernetes or any services that run on top of can be used to set-up alerts and notifications into the preferred channel of your choice. See [Alerts and Applied Intelligence](https://docs.newrelic.com/docs/alerts-applied-intelligence).
+
+## Related Links/References
+
+* [New Relic Account Signup](https://newrelic.com/signup)
+* [Telemetry Data Platform](https://newrelic.com/platform/telemetry-data-platform)
+* [Distributed Tracing](https://docs.newrelic.com/docs/understand-dependencies/distributed-tracing/get-started/introduction-distributed-tracing)
+* [New Relic Trace API](https://docs.newrelic.com/docs/understand-dependencies/distributed-tracing/trace-api)
+* [New Relic Metric API](https://docs.newrelic.com/docs/telemetry-data-platform/get-data/apis/introduction-metric-api)
+* [Types of New Relic API keys](https://docs.newrelic.com/docs/apis/get-started/intro-apis/types-new-relic-api-keys)
+* [New Relic OpenTelemetry User Experience](https://blog.newrelic.com/product-news/opentelemetry-user-experience/)
+* [Alerts and Applied Intelligence](https://docs.newrelic.com/docs/alerts-applied-intelligence)