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Self healing from a Pod Failure

Sumit Rawal answered on June 17, 2023 Popularity 1/10 Helpfulness 1/10

answer Self healing from a Pod Failure

Self healing from a Pod Failure

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In this section, you’ll deploy 5 replicas of a Pod, via a Kubernetes Deployment. After that, you will manually delete a Pod and see Kubernetes self-heal.

You’ll use the deploy.yml manifest in the root of the usercode directory. As seen in the following snippet, it defines 5 Pod replicas running the application you containerized in one of the previous chapters. The YAML shown is annotated to help you understand it.

kind: Deployment                   <<== Type of object being defined
apiVersion: apps/v1                <<== Version of object specification
metadata:
  name: qsk-deploy
spec:
  replicas: 5                      <<== How many Pod replicas
  selector:
    matchLabels:                   <<== Tells the Deployment controller
      project: qsk-course            <<== which Pods to manage
  template:
    metadata:
      labels:
        project: qsk-course          <<== Pod label
    spec: 
      containers:
      - name: qsk-pod
        imagePullPolicy: Always           <<== Never use local images
        ports:
        - containerPort: 8080             <<== Network port
        image: educative1/qsk-course:1.0  <<== Image containing the app

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Contributed on Jun 17 2023

Sumit Rawal

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