Merge pull request #4215 from hhunter-ms/issue_4207

Add namespacing landing page

daprdocs/content/en/concepts/faq/_index.md

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+---
+type: docs
+title: "Frequently asked questions and answers"
+linkTitle: "FAQs"
+weight: 1100
+description: "Learn more about Dapr concepts through frequently asked questions"
+---

daprdocs/content/en/concepts/faq/faq.md

@@ -1,8 +1,8 @@
 ---
 type: docs
-title: "Frequently asked questions and answers"
-linkTitle: "FAQs"
-weight: 1000
+title: "General Dapr questions and answers"
+linkTitle: "General questions"
+weight: 100
 description: "Common questions asked about Dapr"
 ---
 

daprdocs/content/en/concepts/faq/service-mesh.md

@@ -2,7 +2,7 @@
 type: docs
 title: "Dapr and service meshes"
 linkTitle: "Service meshes"
-weight: 900
+weight: 200
 description: >
   How Dapr compares to and works with service meshes
 ---

daprdocs/content/en/concepts/isolation-concept.md

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+---
+type: docs
+title: "Isolation"
+linkTitle: "Isolation"
+weight: 700
+description: How Dapr provides namespacing and isolation
+---
+
+Dapr namespacing provides isolation and multi-tenancy across many capabilities, giving greater security. Typically applications and components are deployed to namespaces to provide isolation in a given environment, such as Kubernetes. 
+
+Dapr supports namespacing in service invocation calls between applications, when accessing components, sending pub/sub messages in consumer groups, and with actors type deployments as examples. Namespacing isolation is supported in both self-hosted and Kubernetes modes. 
+
+To get started, create and configure your namespace.
+
+{{< tabs "Self-Hosted" "Kubernetes">}}
+
+{{% codetab %}}
+
+In self-hosted mode, specify the namespace for a Dapr instance by setting the `NAMESPACE` environment variable.
+
+{{% /codetab %}}
+
+{{% codetab %}}
+
+On Kubernetes, create and configure the namespace:
+
+```bash
+kubectl create namespace namespaceA
+kubectl config set-context --current --namespace=namespaceA
+```
+
+Then deploy your applications into this namespace.
+
+{{% /codetab %}}
+
+{{< /tabs >}}
+
+Learn how to use namespacing throughout Dapr:
+
+- [Service Invocation namespaces]({{< ref service-invocation-namespaces.md >}})
+- [How to: Set up pub/sub namespace consumer groups]({{< ref howto-namespace.md >}})
+- Components:
+  - [How to: Configure pub/sub components with multiple namespaces]({{< ref pubsub-namespaces.md >}})
+  - [Scope components to one or more applications]({{< ref component-scopes.md >}})
+- [Namespaced actors]({{< ref namespaced-actors.md >}})

daprdocs/content/en/concepts/terminology.md

@@ -2,7 +2,7 @@
 type: docs
 title: "Dapr terminology and definitions"
 linkTitle: "Terminology"
-weight: 900
+weight: 1000
 description: Definitions for common terms and acronyms in the Dapr documentation
 ---