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Question 30 - Associate Cloud Engineer discussion

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You are creating a Google Kubernetes Engine (GKE) cluster with a cluster autoscaler feature enabled. You need to make sure that each node of the cluster will run a monitoring pod that sends container metrics to a third-party monitoring solution. What should you do?

A.
Deploy the monitoring pod in a StatefulSet object.
Answers
A.
Deploy the monitoring pod in a StatefulSet object.
B.
Deploy the monitoring pod in a DaemonSet object.
Answers
B.
Deploy the monitoring pod in a DaemonSet object.
C.
Reference the monitoring pod in a Deployment object.
Answers
C.
Reference the monitoring pod in a Deployment object.
D.
Reference the monitoring pod in a cluster initializer at the GKE cluster creation time.
Answers
D.
Reference the monitoring pod in a cluster initializer at the GKE cluster creation time.
Suggested answer: B

Explanation:

https://cloud.google.com/kubernetes-engine/docs/concepts/daemonset

https://cloud.google.com/kubernetes-engine/docs/concepts/daemonset#usage_patterns

DaemonSets attempt to adhere to a one-Pod-per-node model, either across the entire cluster or a subset of nodes. As you add nodes to a node pool, DaemonSets automatically add Pods to the new nodes as needed.

In GKE, DaemonSets manage groups of replicated Pods and adhere to a one-Pod-per-node model, either across the entire cluster or a subset of nodes. As you add nodes to a node pool, DaemonSets automatically add Pods to the new nodes as needed. So, this is a perfect fit for our monitoring pod.

Ref:https://cloud.google.com/kubernetes-engine/docs/concepts/daemonset

DaemonSets are useful for deploying ongoing background tasks that you need to run on all or certain nodes, and which do not require user intervention. Examples of such tasks include storage daemons like ceph, log collection daemons like fluentd, and node monitoring daemons like collectd. For example, you could have DaemonSets for each type of daemon run on all of your nodes. Alternatively, you could run multiple DaemonSets for a single type of daemon, but have them use different configurations for different hardware types and resource needs.

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asked 18/09/2024
Shaun Kilmartin
26 questions
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