Crie um novo gateway de entrada seguindo o modelo para o gateway de entrada pré-instalado. Use o seguinte YAML de definição de gateway (em inglês) para criar um novo gateway. Na YAML de definição do gateway, substitua
POD_NAMESPACEpelo seu namespace. Em seguida, copie e cole o YAML em um arquivo,GATEWAY_DEFINITION_FILE. Certifique-se de editar recursos comoPodDisruptionBudgeteHorizontalPodAutoscalerconforme apropriado para seu ambiente.YAML de definição de gateway
apiVersion: v1 kind: ServiceAccount metadata: name: user-ingressgateway-service-account namespace: istio-system labels: app: istio-ingressgateway chart: gateways heritage: Tiller release: istio --- apiVersion: v1 kind: Service metadata: name: user-ingressgateway namespace: istio-system annotations: labels: chart: gateways heritage: Tiller release: istio app: istio-ingressgateway istio: ingressgateway spec: type: LoadBalancer selector: release: istio app: istio-ingressgateway istio: ingressgateway ports: - name: status-port port: 15020 targetPort: 15020 - name: http2 nodePort: 31380 port: 80 targetPort: 80 - name: https nodePort: 31390 port: 443 - name: tcp nodePort: 31400 port: 31400 - name: https-kiali port: 15029 targetPort: 15029 - name: https-prometheus port: 15030 targetPort: 15030 - name: https-grafana port: 15031 targetPort: 15031 - name: https-tracing port: 15032 targetPort: 15032 - name: tls port: 15443 targetPort: 15443 --- apiVersion: apps/v1 kind: Deployment metadata: name: user-ingressgateway namespace: istio-system labels: app: istio-ingressgateway chart: gateways heritage: Tiller istio: ingressgateway release: istio spec: selector: matchLabels: app: istio-ingressgateway istio: ingressgateway strategy: rollingUpdate: maxSurge: 100% maxUnavailable: 25% template: metadata: labels: app: istio-ingressgateway chart: gateways heritage: Tiller istio: ingressgateway release: istio annotations: sidecar.istio.io/inject: "false" spec: serviceAccountName: user-ingressgateway-service-account containers: - name: istio-proxy image: "gcr.io/istio-testing/proxyv2:1.4-dev" imagePullPolicy: IfNotPresent ports: - containerPort: 15020 - containerPort: 80 - containerPort: 443 - containerPort: 31400 - containerPort: 15029 - containerPort: 15030 - containerPort: 15031 - containerPort: 15032 - containerPort: 15443 - containerPort: 15090 protocol: TCP name: http-envoy-prom args: - proxy - router - --domain - POD_NAMESPACE.svc.cluster.local - --log_output_level=default:info - --drainDuration - '45s' #drainDuration - --parentShutdownDuration - '1m0s' #parentShutdownDuration - --connectTimeout - '10s' #connectTimeout - --serviceCluster - user-ingressgateway - --zipkinAddress - zipkin:9411 - --proxyAdminPort - "15000" - --statusPort - "15020" - --controlPlaneAuthPolicy - NONE - --discoveryAddress - istio-pilot:15010 readinessProbe: failureThreshold: 30 httpGet: path: /healthz/ready port: 15020 scheme: HTTP initialDelaySeconds: 1 periodSeconds: 2 successThreshold: 1 timeoutSeconds: 1 resources: limits: cpu: 2000m memory: 1024Mi requests: cpu: 100m memory: 128Mi env: - name: NODE_NAME valueFrom: fieldRef: apiVersion: v1 fieldPath: spec.nodeName - name: POD_NAME valueFrom: fieldRef: apiVersion: v1 fieldPath: metadata.name - name: POD_NAMESPACE valueFrom: fieldRef: apiVersion: v1 fieldPath: metadata.namespace - name: INSTANCE_IP valueFrom: fieldRef: apiVersion: v1 fieldPath: status.podIP - name: HOST_IP valueFrom: fieldRef: apiVersion: v1 fieldPath: status.hostIP - name: SERVICE_ACCOUNT valueFrom: fieldRef: fieldPath: spec.serviceAccountName - name: ISTIO_META_POD_NAME valueFrom: fieldRef: apiVersion: v1 fieldPath: metadata.name - name: ISTIO_META_CONFIG_NAMESPACE valueFrom: fieldRef: fieldPath: metadata.namespace - name: ISTIO_METAJSON_LABELS value: | {"app":"istio-ingressgateway","chart":"gateways","heritage":"Tiller","istio":"ingressgateway","release":"istio"} - name: ISTIO_META_CLUSTER_ID value: "Kubernetes" - name: SDS_ENABLED value: "false" - name: ISTIO_META_WORKLOAD_NAME value: user-ingressgateway - name: ISTIO_META_OWNER value: kubernetes://apis/apps/v1/namespaces/istio-system/deployments/user-ingressgateway - name: ISTIO_META_ROUTER_MODE value: sni-dnat volumeMounts: - name: istio-certs mountPath: /etc/certs readOnly: true - name: ingressgateway-certs mountPath: "/etc/istio/ingressgateway-certs" readOnly: true - name: ingressgateway-ca-certs mountPath: "/etc/istio/ingressgateway-ca-certs" readOnly: true volumes: - name: istio-certs secret: secretName: istio.user-ingressgateway-service-account optional: true - name: ingressgateway-certs secret: secretName: "istio-ingressgateway-certs" optional: true - name: ingressgateway-ca-certs secret: secretName: "istio-ingressgateway-ca-certs" optional: true affinity: nodeAffinity: requiredDuringSchedulingIgnoredDuringExecution: nodeSelectorTerms: - matchExpressions: - key: beta.kubernetes.io/arch operator: In values: - "amd64" - "ppc64le" - "s390x" preferredDuringSchedulingIgnoredDuringExecution: - weight: 2 preference: matchExpressions: - key: beta.kubernetes.io/arch operator: In values: - "amd64" - weight: 2 preference: matchExpressions: - key: beta.kubernetes.io/arch operator: In values: - "ppc64le" - weight: 2 preference: matchExpressions: - key: beta.kubernetes.io/arch operator: In values: - "s390x" --- apiVersion: policy/v1beta1 kind: PodDisruptionBudget metadata: name: user-ingressgateway namespace: istio-system labels: chart: gateways heritage: Tiller release: istio app: istio-ingressgateway istio: ingressgateway spec: minAvailable: 1 selector: matchLabels: release: istio app: istio-ingressgateway istio: ingressgateway — apiVersion: autoscaling/v2beta1 kind: HorizontalPodAutoscaler metadata: name: user-ingressgateway namespace: istio-system labels: chart: gateways heritage: Tiller release: istio app: istio-ingressgateway istio: ingressgateway spec: maxReplicas: 5 minReplicas: 1 scaleTargetRef: apiVersion: apps/v1 kind: Deployment name: user-ingressgateway metrics: - type: Resource resource: name: cpu targetAverageUtilization: 80 ---Aplique o arquivo de gateway de usuário ao cluster:
kubectl apply -f GATEWAY_DEFINITION_FILEVerifique se um IP externo foi atribuído ao novo gateway:
kubectl get svc -n istio-systemA saída é semelhante à seguinte, com endereços IP para o
istio-ingressgatewayintegrado e ao gateway que você acabou de criar. Outros serviços do Istio são omitidos por questões de brevidade.NAME TYPE CLUSTER-IP EXTERNAL-IP istio-ingressgateway LoadBalancer 10.103.245.98 35.225.130.192 ... user-ingressgateway LoadBalancer 10.103.240.33 104.198.174.26 ...
Adicione um recurso de gateway para o novo gateway. Para mais informações sobre gateways, consulte a referência do istio.io.
kind: Gateway metadata: name: user-gateway spec: selector: app: user-ingressgateway servers: - port: number: 80 name: http protocol: HTTP hosts: - "*"Modifique qualquer
VirtualServiceque aponte para o gateway integrado para que também aponte para o novo gateway. Veja a seguir oVirtualServicemodificado com base no exemplo do Bookinfo:apiVersion: networking.istio.io/v1alpha3 kind: VirtualService metadata: name: bookinfo spec: hosts: - "*" gateways: - bookinfo-gateway - user-gateway http: - match: - uri: exact: /productpage - uri: prefix: /static - uri: exact: /login - uri: exact: /logout - uri: prefix: /api/v1/products route: - destination: host: productpage port: number: 9080Aplique os novos
GatewayeVirtualServiceao cluster usandokubectl apply.Teste se o tráfego pode alcançar seus aplicativos por meio do endereço IP externo antigo e do novo. No exemplo do Bookinfo, isso pode ser feito com curl para os endereços IP externos atribuídos:
curl http://35.225.130.192/productpage curl http://104.198.174.26/productpageAtualize o DNS ou o balanceador de carga para rotear o tráfego para o novo endereço IP externo.
Remova todas as referências em
VirtualServicesa qualquerGatewaysque aponte para a entrada integrada.Remova qualquer
Gatewaysque aponte para a entrada integrada.
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Last updated 2022-01-04 UTC.
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