v4_EN_K8S

HOME > EN > K8S

K8S

Cloud+Docker+K8S enable everyone to build live video streaming cluster and service.

Why should you use k8s to build your SRS cluster?

• Simple: It's really simple and convenient, let's figure it out by QuickStart.
• Declarative deployment: We declare a desired SRS cluster and it'll always be there, without starting and migrating service, watchdog and SLB configuration.
• Expand easily: K8S allows you to expand infrastructure automatically, and you can expand your business cluster easily by change the number of Pods.
• XXX: Coming soon...

This tutorial highlights how to build SRS cluster for a variety of scenarios in ACK(AlibabaCloud Container Service for Kubernetes).

1. Quick Start: Deployment a SRS origin server in ACK.
2. SRS Shares Volume with Nginx: SRS is able to deliver simple HTTP content, or work with Nginx, SRS delivers RTMP/HTTP-FLV and write HLS to a share volume, then Nginx reads and delivers HLS.
3. SRS Edge Cluster for High Concurrency Streaming: SRS edge cluster, which is configured and updated automatically, to provide services for huge players.
4. SRS Origin Cluster for a Large Number of Streams: SRS origin cluster is designed to serve a large number of streams.
5. Useful Tips
   1. Create K8S Cluster in ACK: Create your own k8s cluster in ACK.
   2. Publish Demo Streams to SRS: Publish the demo streams to SRS.
   3. Cleanup For DVR/HLS Temporary Files: Remove the temporary files for DVR/HLS.
   4. Use One SLB and EIP for All Streaming Service: Use one SLB for RTMP/HTTP-FLV/HLS streaming service.
6. XXX: Coming soon...

Quick Start

Assumes you have access to a k8s cluster, you can easily create one in Aliyun, say the following command should succeed:

kubectl cluster-info

Let's take a look at a single SRS origin server in k8s.

Step 1: Create a k8s deployment for SRS origin server:

cat <<EOF | kubectl apply -f -
apiVersion: apps/v1
kind: Deployment
metadata:
  name: srs-deployment
  labels:
    app: srs
spec:
  replicas: 1
  selector:
    matchLabels:
      app: srs
  template:
    metadata:
      labels:
        app: srs
    spec:
      containers:
      - name: srs
        image: ossrs/srs:3
        ports:
        - containerPort: 1935
        - containerPort: 1985
        - containerPort: 8080
EOF

Step 2: Create a k8s service which exposing live video streaming service by SLB with EIP:

cat <<EOF | kubectl apply -f -
apiVersion: v1
kind: Service
metadata:
  name: srs-service
spec:
  type: LoadBalancer
  selector:
    app: srs
  ports:
  - name: srs-service-1935-1935
    port: 1935
    protocol: TCP
    targetPort: 1935
  - name: srs-service-1985-1985
    port: 1985
    protocol: TCP
    targetPort: 1985
  - name: srs-service-8080-8080
    port: 8080
    protocol: TCP
    targetPort: 8080
EOF

Here we create SLB and EIP automatically, you can also buy from AlibabaCloud to provide service, for example:

• SLB ID: lb-2xxyfvpao868wzfvcmx7b
• EIP: 28.170.32.118

Then you can use your intranet SLB:

metadata:
  annotations:
    service.beta.kubernetes.io/alicloud-loadbalancer-address-type: intranet
    service.beta.kubernetes.io/alicloud-loadbalancer-force-override-listeners: "true"
    service.beta.kubernetes.io/alicloud-loadbalancer-id: lb-2xxyfvpao868wzfvcmx7b

Remark: The SLB should be in the same VPC with your K8S cluster.

Step 3: Done, you could get the EIP and play with SRS now.

Please use kubectl get svc/srs-service to get the EIP:

NAME          TYPE           CLUSTER-IP      EXTERNAL-IP
srs-service   LoadBalancer   172.21.12.131   28.170.32.118

Then you can publish and play with 28.170.32.118:

• Publish RTMP to rtmp://28.170.32.118/live/livestream
• Play RTMP from rtmp://28.170.32.118/live/livestream
• Play HTTP-FLV from http://28.170.32.118:8080/live/livestream.flv
• Play HLS from http://28.170.32.118:8080/live/livestream.m3u8

SRS Shares Volume with Nginx

Coming soon...

SRS Edge Cluster for High Concurrency Streaming

Coming soon...

SRS Origin Cluster for a Large Number of Streams

Coming soon...

Useful Tips

There are some useful tips for you.

1. Create K8S Cluster in ACK: Create your own k8s cluster in ACK.
2. Publish Demo Streams to SRS: Publish the demo streams to SRS.
3. Use One SLB and EIP for All Streaming Service: Use one SLB for RTMP/HTTP-FLV/HLS streaming service.

Create K8S Cluster in ACK

Coming soon...

Publish Demo Streams to SRS

Coming soon...

Use One SLB for All Streaming Service

Coming soon...

Winlin 2020.02