istio服务网格之bookinfo

FROM python:3.7.7-slim

COPY requirements.txt ./

RUN pip install --no-cache-dir -r requirements.txt

COPY test-requirements.txt ./

RUN pip install --no-cache-dir -r test-requirements.txt

COPY productpage.py /opt/microservices/

COPY tests/unit/* /opt/microservices/

COPY templates /opt/microservices/templates

COPY static /opt/microservices/static

COPY requirements.txt /opt/microservices/

ARG flood_factor

ENV FLOOD_FACTOR ${flood_factor:-0}

EXPOSE 9080

WORKDIR /opt/microservices

RUN python -m unittest discover

CMD ["python", "productpage.py", "9080"]

kubectl label namespace default istio-injection=enabled  #istio 边车代理 ，自动进行注入

kubectl edit svc productpage

....

ports:

  - name: http

    port: 9080

    protocol: TCP

    targetPort: 9080

    nodePort: 30881 #增加

  selector:

    app: productpage

  sessionAffinity: None

  type: NodePort #修改为NodePort

....

在bookinfo.yaml文件中注释reviews其他版本的资源或者部署完成后删除掉reviews其他版本的deployment

apiVersion: networking.istio.io/v1alpha3

kind: VirtualService

metadata:

  name: reviews

spec:

  hosts:

    - reviews

  http:

  - route:

    - destination:

        host: reviews

        subset: v1

      weight: 60

    - destination:

        host: reviews

        subset: v2

      weight: 40

apiVersion: networking.istio.io/v1alpha3

kind: DestinationRule

metadata:

  name: productpage

  namespace: default

spec:

  host: productpage

  trafficPolicy:

    connectionPool:

      http:

        maxRequestsPerConnection: 1

        http1MaxPendingRequests: 1

      tcp:

        maxConnections: 1