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4、添加带Istio sidecar 的部署和服务

概述#

在命名空间中启用 Istio 后仅对新的工作负载启用自动 Sidecar 注入。要为现有工作负载启用 Envoy Sidecar，您需要为每个工作负载手动启用它。

要将 Istio sidecar 注入命名空间中的现有工作负载，请转到工作负载页面，单击省略号 (...)，然后单击重新部署。重新部署工作负载时，Envoy sidecar 会自动注入。

等待几分钟，以使工作负载升级到带有 Istio sidecar。单击该工作负载，然后转到容器部分。您应该能够在工作负载中看到 istio-init 和 istio-proxy 容器。这意味着已为工作负载启用了 Istio sidecar。Istio 正在为 Envoy sidecar 进行所有接线。现在，如果您通过 Yaml 中使用了 Istio 的功能，则 Istio 可以自动执行。

先决条件： 要为工作负载启用 Istio，集群和命名空间必须启用 Istio。

添加部署和服务#

接下来，我们再添加 Istio 文档中的 BookInfo 示例应用程序相关的 Kubernetes 资源。

  1. 进入要部署工作负载的项目中。
  2. 在工作负载页面，单击导入 YAML。
  3. 将以下资源复制到表单中。
  4. 单击导入。

这将从 Istio 的 BookInfo 示例应用中设置以下资源：

Details 部署和服务:

  • 一个名为details的 Service
  • 一个名为bookinfo-details的 ServiceAccount
  • 一个名为details-v1的 Deployment

Ratings 部署和服务:

  • 一个名为ratings的 Service
  • 一个名为bookinfo-ratings的 ServiceAccount
  • 一个名为ratings-v1的 Deployment

Reviews 部署和服务（三个版本）：

  • 一个名为reviews的 Service
  • 一个名为bookinfo-reviews的 ServiceAccount
  • 一个名为reviews-v1的 Deployment
  • 一个名为reviews-v2的 Deployment
  • 一个名为reviews-v3的 Deployment

Productpage 部署和服务:

这是应用程序的主页，可从网页浏览器中看到。其他服务将从此页面调用。

  • 一个名为productpage的 Service
  • 一个名为bookinfo-productpage的 ServiceAccount
  • 一个名为productpage-v1的 Deployment

资源 YAML#

# Copyright 2017 Istio Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
##################################################################################################
# Details service
##################################################################################################
apiVersion: v1
kind: Service
metadata:
name: details
labels:
app: details
service: details
spec:
ports:
- port: 9080
name: http
selector:
app: details
---
apiVersion: v1
kind: ServiceAccount
metadata:
name: bookinfo-details
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: details-v1
labels:
app: details
version: v1
spec:
replicas: 1
selector:
matchLabels:
app: details
version: v1
template:
metadata:
labels:
app: details
version: v1
spec:
serviceAccountName: bookinfo-details
containers:
- name: details
image: docker.io/istio/examples-bookinfo-details-v1:1.15.0
imagePullPolicy: IfNotPresent
ports:
- containerPort: 9080
---
##################################################################################################
# Ratings service
##################################################################################################
apiVersion: v1
kind: Service
metadata:
name: ratings
labels:
app: ratings
service: ratings
spec:
ports:
- port: 9080
name: http
selector:
app: ratings
---
apiVersion: v1
kind: ServiceAccount
metadata:
name: bookinfo-ratings
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: ratings-v1
labels:
app: ratings
version: v1
spec:
replicas: 1
selector:
matchLabels:
app: ratings
version: v1
template:
metadata:
labels:
app: ratings
version: v1
spec:
serviceAccountName: bookinfo-ratings
containers:
- name: ratings
image: docker.io/istio/examples-bookinfo-ratings-v1:1.15.0
imagePullPolicy: IfNotPresent
ports:
- containerPort: 9080
---
##################################################################################################
# Reviews service
##################################################################################################
apiVersion: v1
kind: Service
metadata:
name: reviews
labels:
app: reviews
service: reviews
spec:
ports:
- port: 9080
name: http
selector:
app: reviews
---
apiVersion: v1
kind: ServiceAccount
metadata:
name: bookinfo-reviews
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: reviews-v1
labels:
app: reviews
version: v1
spec:
replicas: 1
selector:
matchLabels:
app: reviews
version: v1
template:
metadata:
labels:
app: reviews
version: v1
spec:
serviceAccountName: bookinfo-reviews
containers:
- name: reviews
image: docker.io/istio/examples-bookinfo-reviews-v1:1.15.0
imagePullPolicy: IfNotPresent
ports:
- containerPort: 9080
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: reviews-v2
labels:
app: reviews
version: v2
spec:
replicas: 1
selector:
matchLabels:
app: reviews
version: v2
template:
metadata:
labels:
app: reviews
version: v2
spec:
serviceAccountName: bookinfo-reviews
containers:
- name: reviews
image: docker.io/istio/examples-bookinfo-reviews-v2:1.15.0
imagePullPolicy: IfNotPresent
ports:
- containerPort: 9080
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: reviews-v3
labels:
app: reviews
version: v3
spec:
replicas: 1
selector:
matchLabels:
app: reviews
version: v3
template:
metadata:
labels:
app: reviews
version: v3
spec:
serviceAccountName: bookinfo-reviews
containers:
- name: reviews
image: docker.io/istio/examples-bookinfo-reviews-v3:1.15.0
imagePullPolicy: IfNotPresent
ports:
- containerPort: 9080
---
##################################################################################################
# Productpage services
##################################################################################################
apiVersion: v1
kind: Service
metadata:
name: productpage
labels:
app: productpage
service: productpage
spec:
ports:
- port: 9080
name: http
selector:
app: productpage
---
apiVersion: v1
kind: ServiceAccount
metadata:
name: bookinfo-productpage
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: productpage-v1
labels:
app: productpage
version: v1
spec:
replicas: 1
selector:
matchLabels:
app: productpage
version: v1
template:
metadata:
labels:
app: productpage
version: v1
spec:
serviceAccountName: bookinfo-productpage
containers:
- name: productpage
image: docker.io/istio/examples-bookinfo-productpage-v1:1.15.0
imagePullPolicy: IfNotPresent
ports:
- containerPort: 9080
---

后续操作#

设置 Istio 网关

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Last updated on by yzeng25