Serverless- Knative的使用例子
文档说明：自建K8S，只记录关键地方;
k8s 版本 > 1.24.7
CRI 使用 containerd
实验环境： linux debian 11
目标：serverless 使用实践
knative 应用例子： chromium 扩展开发文档展示
pod 有效期1个小时，1小时候以后没有访问流量，容器自动停止运行
获取某个容器的最新tag
chrome_docs_latest_tag=$(curl -L -s 'https://hub.docker.com/v2/repositories/wenba100xie/developer.chrome.com/tags/?page_size=1&page=1&ordering=last_updated'|jq '."results"[]["name"]'| sed 's/\"//g')
echo "export chrome_docs_latest_tag='$chrome_docs_latest_tag'" >> latest_tag_conf.sh
echo $chrome_docs_latest_tag
运行knative service pod
apiVersion: serving.knative.dev/v1
kind: Service
metadata:
name: developer-chrome-com
namespace: kn
annotations:
serving.knative.dev/rolloutDuration: "380s"
spec:
template:
metadata:
labels:
app: developer-chrome-com
annotations:
# autoscaling.knative.dev/class: "kpa.autoscaling.knative.dev"
autoscaling.knative.dev/class: "kpa.autoscaling.knative.dev"
autoscaling.knative.dev/maxScale: "1"
autoscaling.knative.dev/minScale: "0"
autoscaling.knative.dev/scaleToZeroPodRetentionPeriod: "1h0m0s"
spec:
containers:
- image: wenba100xie/developer.chrome.com:20220901
ports:
- containerPort: 80 #containerPort 字段就是容器提供服务的唯一端口。业务端口可以设置 1-65535 这个范围中除了 8012、8013、8022、8091 和 8092 以外的任意端口
name: http1
traffic:
- latestRevision: true
percent: 100
查看knative pod 状态
kubectl get pods -n knative-serving
kubectl get pod -n kn
kubectl get ksvc -n kn
kubectl get pods --namespace istio-system
kubectl get pod -n kn -l serving.knative.dev/service=developer-chrome-com -w
kubectl get svc -n istio-system
kubectl get namespace knative-serving -o 'go-template={{index .metadata.labels "serving.knative.dev/release"}}'
浏览器访问
https://developer-chrome-com.knative.xiaoshuogeng.com
