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answered questions
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Aniket Shinde 2022-08-01 16:12:15 +05:30 committed by GitHub
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exercises/kubernetes/README.md
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@ -1436,6 +1436,9 @@ It includes:
<details>
<summary>What is kubconfig? What do you use it for?</summary><br><b>
A kubeconfig file is a file used to configure access to Kubernetes when used in conjunction with the kubectl commandline tool (or other clients).
Use kubeconfig files to organize information about clusters, users, namespaces, and authentication mechanisms.
</b></details>
<details>
@ -1554,6 +1557,8 @@ True
<details>
<summary>Explain Volume Snapshots</summary><br><b>
Volume snapshots let you create a copy of your volume at a specific point in time.
</b></details>
<details>
@ -1568,6 +1573,8 @@ False
<details>
<summary>Explain "Dynamic Provisioning" and "Static Provisioning"</summary><br><b>
The main difference relies on the moment when you want to configure storage. For instance, if you need to pre-populate data in a volume, you choose static provisioning. Whereas, if you need to create volumes on demand, you go for dynamic provisioning.
</b></details>
<details>
@ -1602,6 +1609,8 @@ False
<details>
<summary>What is RBAC?</summary><br><b>
RBAC in Kubernetes is the mechanism that enables you to configure fine-grained and specific sets of permissions that define how a given user, or group of users, can interact with any Kubernetes object in cluster, or in a specific Namespace of cluster.
</b></details>
<details>
@ -1610,6 +1619,8 @@ False
<details>
<summary>What is the difference between <code>Role</code> and <code>ClusterRole</code> objects?</summary><br><b>
The difference between them is that a Role is used at a namespace level whereas a ClusterRole is for the entire cluster.
</b></details>
<details>
@ -1650,12 +1661,17 @@ The pod is automatically assigned with the default service account (in the names
<details>
<summary>Explain the sidecar container pattern</summary><br><b>
The sidecar pattern is a single-node pattern made up of two containers. The first is the application container. It contains the core logic for the application.
Without this container, the application would not exist. In addition to the application container, there is a sidecar container.
</b></details>
#### Kubernetes - CronJob
<details>
<summary>Explain what is CronJob and what is it used for</summary><br><b>
A CronJob creates Jobs on a repeating schedule. One CronJob object is like one line of a crontab (cron table) file. It runs a job periodically on a given schedule, written in Cron format.
</b></details>
<details>
@ -1763,7 +1779,7 @@ False. Use secret.
<details>
<summary>Explain "Horizontal Pod Autoscaler"</summary><br><b>
Scale the number of pods automatically on observed CPU utilization.
In Kubernetes, a HorizontalPodAutoscaler automatically updates a workload resource with the aim of automatically scaling the workload to match demand.
</b></details>
<details>
@ -1816,6 +1832,8 @@ View more [here](https://www.youtube.com/watch?v=rDCWxkvPlAw)
<details>
<summary>Explain Labels. What are they and why would one use them?</summary><br><b>
Kubernetes labels are key-value pairs that can connect identifying metadata with Kubernetes objects.
</b></details>
<details>
@ -2001,6 +2019,8 @@ You can learn more [here](https://submariner-io.github.io)
<details>
<summary>What is Istio? What is it used for?</summary><br><b>
Istio is an open source service mesh that helps organizations run distributed, microservices-based apps anywhere. Istio enables organizations to secure, connect, and monitor microservices, so they can modernize their enterprise apps more swiftly and securely.
</b></details>
#### Kubernetes - Scenarios