题目要求

namespace goshawk 中名为 chipmunk-service 的 Service 指向名为 current-chipmunk-deployment 的 Deployment 创建的 5 个 Pod

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你可以在 /ckad/goshawk 中找到 current-chipmunk-deployment 的清单文件。

  1. 在同一 namespace 中创建一个 相同的 Deployment 名为 canary-chipmunk-deployment
  2. 修改 Deployment 以便
    • 在 namespace goshawk 中运行的 Pod 的最大数量为 10 个
    • chipmunk.service 流量的 40% 流向 Pod canary-chipmunk-deployment

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参考

https://kubernetes.io/zh-cn/docs/concepts/cluster-administration/manage-deployment/#canary-deployments

解答

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# 1.复制一份yaml文件,并进行编辑, 修改为canary-chipmunk-deployment部署的yaml
cd /ckad/goshawk/
cp current-chipmunk-deployment.yaml canary-chipmunk-deployment.yaml
vim canary-chipmunk-deployment.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: canary-chipmunk-deployment #修改为题目要求
  namespace: goshawk #修改为题目要求
spec:
  replicas: 1
  selector:
    matchLabels:
      app: canary-chipmunk-deployment #修改为题目要求
      run: dep-svc #确保和current-chipmunk-deployment都有此标签
  template:
    metadata:
      labels:
        app: canary-chipmunk-deployment #修改为题目要求
        run: dep-svc #确保和current-chipmunk-deployment都有此标签
    spec:
      containers:
      - image: vicuu/nginx:hi
        name: nginx

# 创建资源
kubectl apply -f canary-chipmunk-deployment.yaml

# 修改pod数量，要求总计10个pod，**chipmunk.servic**e 流量的 **40%** 流向 Pod **canary-chipmunk-deployment
kubectl -n goshawk scale deployment current-chipmunk-deployment --replicas 6
kubectl -n goshawk scale deployment canary-chipmunk-deployment --replicas 4

# 测试验证
kubectl -n goshawk get svc -owide
for i in {1..1000} ; do  curl -qs 10.109.141.220;done | sort |uniq -c