【CKA模拟题】学会使用ReplicaSet和Deployment

题干

For this question, please set this context (In exam, diff cluster name)

kubectl config use-context kubernetes-admin@kubernetes

Create a ReplicaSet named dns-rs-cka with 2 replicas in the dns-ns namespace using the image registry.k8s.io/e2e-test-images/jessie-dnsutils:1.3 and set the command to sleep 3600 with the container named dns-container .

Once the pods are up and running, run the nslookup kubernetes.default command from any one of the pod and save the output into a file named dns-output.txt .

创建一个名为dns-rs-cka的副本集，在dns-ns命名空间中使用镜像注册表.k8 .io/e2e-test-images/jess -dnsutils:1.3，并将命令设置为休眠3600，容器名为dns-container。

pod启动并运行后，在任何pod中运行nslookup kubernetes.default命令，并将输出保存到名为dns-output.txt的文件中。

解题思路

1. 创建dns-ns命名空间，

kubectl create ns dns-ns

2. 创建dns-rs-cka资源清单，内容如下：

apiVersion: apps/v1
kind: ReplicaSet
metadata:
  name: dns-rs-cka
  namespace: dns-ns
spec:
  replicas: 2
  selector:
    matchLabels:
      app: dns-rs-cka
  template:
    metadata:
      labels:
        app: dns-rs-cka
    spec:
      containers:
      - name: dns-container
        image: registry.k8s.io/e2e-test-images/jessie-dnsutils:1.3
        command: ["sleep", "3600"]

3. 提交资源清单

kubectl apply -f dns-rs-cka.yaml

4. 在任何pod中运行nslookup kubernetes.default命令，把输出结果保存到dns-output.txt的文件中。

k -n dns-ns exec -it dns-rs-cka-fb7ffc69c-d2c2v -- nslookup kubernetes.default >dns-output.txt

题干

For this question, please set this context (In exam, diff cluster name)

kubectl config use-context kubernetes-admin@kubernetes

Create a Deployment named dns-deploy-cka with 2 replicas in the dns-ns namespace using the image registry.k8s.io/e2e-test-images/jessie-dnsutils:1.3 and set the command to sleep 3600 with the container named dns-container .

Once the pods are up and running, run the nslookup kubernetes.default command from any one of the pod and save the output into a file named dns-output.txt .

创建一个名为dns-deploy-cka的部署，在dns-ns命名空间中使用镜像注册表.k8 .io/e2e-test-images/jess -dnsutils:1.3，并将命令设置为使用名为dns-container的容器休眠3600。

pod启动并运行后，在任何pod中运行nslookup kubernetes.default命令，并将输出保存到名为dns-output.txt的文件中。

解题思路

1. 创建dns-ns命名空间，

kubectl create ns dns-ns

2. 创建dns-rs-cka资源清单，内容如下：

apiVersion: apps/v1
kind: Deployment
metadata:
  name: dns-deploy-cka
  namespace: dns-ns
spec:
  replicas: 2
  selector:
    matchLabels:
      app: dns-deploy-cka
  template:
    metadata:
      labels:
        app: dns-deploy-cka
    spec:
      containers:
      - name: dns-container
        image: registry.k8s.io/e2e-test-images/jessie-dnsutils:1.3
        command: ["sleep", "3600"]

3. 提交资源清单

kubectl apply -f dns-deploy-cka.yaml

4. 在任何pod中运行nslookup kubernetes.default命令，把输出结果保存到dns-output.txt的文件中。

k -n dns-ns exec -it dns-deploy-cka-fb7ffc69c-d2c2v -- nslookup kubernetes.default >dns-output.txt