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Billy Tat
322 lines
7.7 KiB
Markdown
322 lines
7.7 KiB
Markdown
---
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title: 4. Add Deployments and Services with the Istio Sidecar
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---
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> **Prerequisite:** To enable Istio for a workload, the cluster and namespace must have Istio enabled.
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Enabling Istio in a namespace only enables automatic sidecar injection for new workloads. To enable the Envoy sidecar for existing workloads, you need to enable it manually for each workload.
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To inject the Istio sidecar on an existing workload in the namespace, go to the workload, click the **⋮,** and click **Redeploy.** When the workload is redeployed, it will have the Envoy sidecar automatically injected.
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Wait a few minutes for the workload to upgrade to have the istio sidecar. Click it and go to the Containers section. You should be able to see istio-init and istio-proxy alongside your original workload. This means the Istio sidecar is enabled for the workload. Istio is doing all the wiring for the sidecar envoy. Now Istio can do all the features automatically if you enable them in the yaml.
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### 3. Add Deployments and Services
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Next we add the Kubernetes resources for the sample deployments and services for the BookInfo app in Istio's documentation.
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1. Go to the project inside the cluster you want to deploy the workload on.
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1. In Workloads, click **Import YAML.**
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1. Copy the below resources into the form.
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1. Click **Import.**
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This will set up the following sample resources from Istio's example BookInfo app:
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Details service and deployment:
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- A `details` Service
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- A ServiceAccount for `bookinfo-details`
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- A `details-v1` Deployment
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Ratings service and deployment:
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- A `ratings` Service
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- A ServiceAccount for `bookinfo-ratings`
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- A `ratings-v1` Deployment
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Reviews service and deployments (three versions):
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- A `reviews` Service
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- A ServiceAccount for `bookinfo-reviews`
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- A `reviews-v1` Deployment
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- A `reviews-v2` Deployment
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- A `reviews-v3` Deployment
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Productpage service and deployment:
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This is the main page of the app, which will be visible from a web browser. The other services will be called from this page.
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- A `productpage` service
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- A ServiceAccount for `bookinfo-productpage`
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- A `productpage-v1` Deployment
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### Resource YAML
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```yaml
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# Copyright 2017 Istio Authors
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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##################################################################################################
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# Details service
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##################################################################################################
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apiVersion: v1
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kind: Service
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metadata:
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name: details
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labels:
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app: details
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service: details
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spec:
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ports:
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- port: 9080
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name: http
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selector:
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app: details
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---
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apiVersion: v1
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kind: ServiceAccount
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metadata:
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name: bookinfo-details
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---
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: details-v1
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labels:
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app: details
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version: v1
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spec:
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replicas: 1
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selector:
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matchLabels:
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app: details
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version: v1
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template:
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metadata:
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labels:
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app: details
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version: v1
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spec:
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serviceAccountName: bookinfo-details
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containers:
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- name: details
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image: docker.io/istio/examples-bookinfo-details-v1:1.15.0
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imagePullPolicy: IfNotPresent
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ports:
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- containerPort: 9080
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---
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##################################################################################################
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# Ratings service
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##################################################################################################
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apiVersion: v1
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kind: Service
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metadata:
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name: ratings
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labels:
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app: ratings
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service: ratings
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spec:
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ports:
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- port: 9080
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name: http
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selector:
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app: ratings
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---
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apiVersion: v1
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kind: ServiceAccount
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metadata:
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name: bookinfo-ratings
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---
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: ratings-v1
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labels:
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app: ratings
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version: v1
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spec:
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replicas: 1
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selector:
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matchLabels:
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app: ratings
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version: v1
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template:
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metadata:
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labels:
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app: ratings
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version: v1
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spec:
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serviceAccountName: bookinfo-ratings
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containers:
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- name: ratings
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image: docker.io/istio/examples-bookinfo-ratings-v1:1.15.0
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imagePullPolicy: IfNotPresent
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ports:
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- containerPort: 9080
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---
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##################################################################################################
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# Reviews service
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##################################################################################################
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apiVersion: v1
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kind: Service
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metadata:
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name: reviews
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labels:
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app: reviews
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service: reviews
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spec:
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ports:
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- port: 9080
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name: http
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selector:
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app: reviews
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---
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apiVersion: v1
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kind: ServiceAccount
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metadata:
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name: bookinfo-reviews
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---
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: reviews-v1
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labels:
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app: reviews
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version: v1
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spec:
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replicas: 1
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selector:
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matchLabels:
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app: reviews
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version: v1
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template:
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metadata:
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labels:
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app: reviews
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version: v1
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spec:
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serviceAccountName: bookinfo-reviews
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containers:
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- name: reviews
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image: docker.io/istio/examples-bookinfo-reviews-v1:1.15.0
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imagePullPolicy: IfNotPresent
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ports:
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- containerPort: 9080
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---
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: reviews-v2
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labels:
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app: reviews
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version: v2
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spec:
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replicas: 1
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selector:
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matchLabels:
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app: reviews
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version: v2
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template:
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metadata:
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labels:
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app: reviews
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version: v2
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spec:
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serviceAccountName: bookinfo-reviews
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containers:
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- name: reviews
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image: docker.io/istio/examples-bookinfo-reviews-v2:1.15.0
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imagePullPolicy: IfNotPresent
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ports:
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- containerPort: 9080
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---
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: reviews-v3
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labels:
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app: reviews
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version: v3
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spec:
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replicas: 1
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selector:
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matchLabels:
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app: reviews
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version: v3
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template:
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metadata:
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labels:
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app: reviews
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version: v3
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spec:
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serviceAccountName: bookinfo-reviews
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containers:
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- name: reviews
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image: docker.io/istio/examples-bookinfo-reviews-v3:1.15.0
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imagePullPolicy: IfNotPresent
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ports:
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- containerPort: 9080
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---
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##################################################################################################
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# Productpage services
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##################################################################################################
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apiVersion: v1
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kind: Service
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metadata:
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name: productpage
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labels:
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app: productpage
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service: productpage
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spec:
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ports:
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- port: 9080
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name: http
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selector:
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app: productpage
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---
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apiVersion: v1
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kind: ServiceAccount
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metadata:
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name: bookinfo-productpage
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---
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: productpage-v1
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labels:
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app: productpage
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version: v1
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spec:
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replicas: 1
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selector:
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matchLabels:
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app: productpage
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version: v1
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template:
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metadata:
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labels:
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app: productpage
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version: v1
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spec:
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serviceAccountName: bookinfo-productpage
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containers:
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- name: productpage
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image: docker.io/istio/examples-bookinfo-productpage-v1:1.15.0
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imagePullPolicy: IfNotPresent
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ports:
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- containerPort: 9080
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---
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```
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### [Next: Set up the Istio Gateway](set-up-istio-gateway.md)
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