mirror of https://github.com/dapr/docs.git
65 lines
4.8 KiB
Markdown
65 lines
4.8 KiB
Markdown
---
|
|
type: docs
|
|
title: "Overview of Dapr on Kubernetes"
|
|
linkTitle: "Overview"
|
|
weight: 10000
|
|
description: "Overview of how to get Dapr running on your Kubernetes cluster"
|
|
---
|
|
|
|
Dapr can be configured to run on any supported versions of Kubernetes. To achieve this, Dapr begins by deploying the following Kubernetes services, which provide first-class integration to make running applications with Dapr easy.
|
|
|
|
| Kubernetes services | Description |
|
|
|-------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|
|
| `dapr-operator` | Manages [component]({{% ref components %}}) updates and Kubernetes services endpoints for Dapr (state stores, pub/subs, etc.) |
|
|
| `dapr-sidecar-injector` | Injects Dapr into [annotated](#adding-dapr-to-a-kubernetes-deployment) deployment pods and adds the environment variables `DAPR_HTTP_PORT` and `DAPR_GRPC_PORT` to enable user-defined applications to easily communicate with Dapr without hard-coding Dapr port values. |
|
|
| `dapr-placement` | Used for [actors]({{% ref actors %}}) only. Creates mapping tables that map actor instances to pods |
|
|
| `dapr-sentry` | Manages mTLS between services and acts as a certificate authority. For more information read the [security overview]({{% ref "security-concept.md" %}}) |
|
|
| `dapr-scheduler` | Provides distributed job scheduling capabilities used by the Jobs API, Workflow API, and Actor Reminders |
|
|
|
|
<img src="/images/overview-kubernetes.png" width=1000>
|
|
|
|
## Supported versions
|
|
Dapr support for Kubernetes is aligned with [Kubernetes Version Skew Policy](https://kubernetes.io/releases/version-skew-policy).
|
|
|
|
## Deploying Dapr to a Kubernetes cluster
|
|
|
|
Read [Deploy Dapr on a Kubernetes cluster]({{% ref kubernetes-deploy.md %}}) to learn how to deploy Dapr to your Kubernetes cluster.
|
|
|
|
## Adding Dapr to a Kubernetes deployment
|
|
|
|
Deploying and running a Dapr-enabled application into your Kubernetes cluster is as simple as adding a few annotations to the pods schema. For example, in the following example, your Kubernetes pod is annotated to:
|
|
- Give your service an `id` and `port` known to Dapr
|
|
- Turn on tracing through configuration
|
|
- Launch the Dapr sidecar container
|
|
|
|
```yml
|
|
annotations:
|
|
dapr.io/enabled: "true"
|
|
dapr.io/app-id: "nodeapp"
|
|
dapr.io/app-port: "3000"
|
|
dapr.io/config: "tracing"
|
|
```
|
|
|
|
For more information, check [Dapr annotations]({{% ref arguments-annotations-overview.md %}}).
|
|
|
|
## Pulling container images from private registries
|
|
|
|
Dapr works seamlessly with any user application container image, regardless of its origin. Simply [initialize Dapr]({{% ref install-dapr-selfhost.md %}}) and add the [Dapr annotations]({{% ref arguments-annotations-overview.md %}}) to your Kubernetes definition to add the Dapr sidecar.
|
|
|
|
The Dapr control plane and sidecar images come from the [daprio Docker Hub](https://hub.docker.com/u/daprio) container registry, which is a public registry.
|
|
|
|
For information about:
|
|
- Pulling your application images from a private registry, reference the [official Kubernetes documentation](https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/).
|
|
- Using Azure Container Registry with Azure Kubernetes Service, reference the [AKS documentation](https://docs.microsoft.com/azure/aks/cluster-container-registry-integration).
|
|
|
|
## Tutorials
|
|
|
|
[Work through the Hello Kubernetes tutorial](https://github.com/dapr/quickstarts/tree/master/tutorials/hello-kubernetes) to learn more about getting started with Dapr on your Kubernetes cluster.
|
|
|
|
## Related links
|
|
|
|
- [Deploy Dapr to a Kubernetes cluster]({{% ref kubernetes-deploy %}})
|
|
- [Upgrade Dapr on a Kubernetes cluster]({{% ref kubernetes-upgrade %}})
|
|
- [Production guidelines for Dapr on Kubernetes]({{% ref kubernetes-production.md %}})
|
|
- [Dapr Kubernetes Quickstart](https://github.com/dapr/quickstarts/tree/master/tutorials/hello-kubernetes)
|