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NEW QUESTION # 34
You are deploying a new microservice to your Kubernetes cluster. This service needs to communicate with another service within the same cluster. You want to ensure that the communication between the two services is secure and reliable. Which container network interface plugin would you choose for this scenario and why?
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1 . Choose the appropriate Container Network Interface Plugin:
- For secure and reliable communication between services within the same Kubernetes cluster, the Calico container network interface plugin is a recommended choice.
2. Reasons for choosing Calico:
- Security: Calico provides robust network security features like network policies that allow you to define fine- grained access control rules between pods and services. This ensures secure communication only between authorized entities.
- Reliability: Calico offers high availability and reliability. It uses a distributed architecture and supports BGP for efficient routing and load balancing, leading to resilient network connectivity.
- Ease of Use: Calico integrates seamlessly with Kubernetes and is easy to configure and manage.
- Scalability: It's highly scalable, enabling you to manage large and complex Kubernetes environments.
3. Example Implementation:
- Install Calico: Use the 'kubectl' command to install Calico on your Kubernetes cluster:
kubectl apply -f https://docs.projectcalico.org/v3.19/getting-
started/kubernetes/installation/l .8+/manifests/calico.yaml
- Define Network Policies: Create network policies to control communication between your services. Here's an example:
This policy allows pods labeled 'app: microservice? to communicate with pods labeled 'app: microservice? within the 'default' namespace. 4. Verify the Configuration: - Use 'kubectl get networkpolicies' to list the defined network policies. - Test communication between your services. Note: Calico is a popular and highly regarded choice for Kubernetes networking. However, other plugins like Flannel and Weave are also viable options, depending on your specific requirements and preferences. ,
NEW QUESTION # 35
Check the Image version of nginx-dev pod using jsonpath
Answer:
Explanation:
kubect1 get po nginx-dev -o jsonpath='{.spec.containers[].image}{" "}'
NEW QUESTION # 36
Create a namespace called 'development' and a pod with image nginx called nginx on this namespace.
Answer:
Explanation:
kubectl create namespace development kubectl run nginx --image=nginx --restart=Never -n development
NEW QUESTION # 37
Create a pod named kucc8 with a single app container for each of the
following images running inside (there may be between 1 and 4 images specified):
nginx + redis + memcached.
Answer:
Explanation:
See the solution below.
Explanation
solution
NEW QUESTION # 38
Create a Kubernetes secret as follows:
* Name: super-secret
* password: bob
Create a pod named pod-secrets-via-file, using the redis Image, which mounts a secret named super-secret at
/secrets.
Answer:
Explanation:
Create a second pod named pod-secrets-via-env, using the redis Image, which exports password as CONFIDENTIAL See the solution below.
Explanation
solution
NEW QUESTION # 39
......
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