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Guided Exercise: Liveness, Readiness, and Startup Probes

In this exercise, you will configure liveness and readiness probes to monitor the health of an application deployed to your Kubernetes cluster. The application you deploy in this exercise exposes two … See more

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URL: https://kubebyexample.com/learning-paths/application-development-kubernetes/lesson-4-customize-deployments-application-3

Liveness, Readiness, and Startup Probes Kube by Example

WEBHTTP probe uses GET requests to check the health of an application. The check is successful if the HTTP response code is in the range 200-399. The following example …

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Kubernetes Health Checks & Probes Kube by Example

WEBIn the pod specification we've defined the following: livenessProbe: initialDelaySeconds: 2. periodSeconds: 5. httpGet: path: /health. port: 9876. The configuration above tells …

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Add Health Checks Kube by Example

WEBKubernetes, and a number of other cloud deployment technologies, provide Health Checking as a system that allows the cloud deployment technology to monitor the …

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Guided Exercise: Contrasting Kubernetes Distributions

WEBDeploying a fully developed, multi-node Kubernetes cluster typically requires significant time and compute resources. With minikube, you can quickly deploy a local Kubernetes …

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Liveness Probes Kube by Example

WEBLiveness Probes. Building on the knowledge in the previous video about Readiness Probes, in this video, users learn how to set up a Liveness Probe. Essentially acting as a health …

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Argo CD Deploying an Application Kube by Example

WEBYou can setup Argo CD to automatically correct drift by setting the Application manifest to do so. You can run kubectl edit application test -n argocd and set the following …

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Interacting directly with the API Kube by Example

WEBUse the `--v` flag to set a verbosity level. This will allow you to see the request/responses against the Kubernetes API: kubectl get pods --v=8. Use the `kubectl proxy` command to …

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Persistent Storage for Virtual Machines Kube by Example

WEBPersistent Storage for Virtual Machines. Previous examples have used a small virtual machine running the CirrOS operating system. This virtual machine uses a containerdisk …

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Nodes Kube by Example

WEBkubectl get nodes. The output will vary depending on your cluster. The example below is taken from a minikube cluster: NAME STATUS ROLES AGE VERSION. minikube …

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An Introduction to Podman Desktop: The GUI for Podman …

WEBPodman Desktop provides a graphical interface for Podman, a container engine designed to be a drop-in replacement for Docker. Podman Desktop makes it …

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Istio Traffic Management Kube by Example

WEBThe default ingress gateway has the istio=ingressgateway label applied. The servers section is a list of host and ports that are matched against incoming HTTP traffic. The …

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Understanding a Containers Attack Surface in Kubernetes

WEBUnderstanding a Containers Attack Surface in Kubernetes. Kubernetes is a complex orchestration tool that requires multiple teams to ensure its stability and usability. In this …

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Persistent Volumes Kube by Example

WEBA persistent volume (PV) is a cluster-wide resource that you can use to store data in a way that it persists beyond the lifetime of a pod. The PV is not backed by locally-attached …

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Migrating to Kubernetes with Open Source Tools Kube By Example

WEBHere are the three open source tools we focus on: Tackle helps you streamline your applications to Kubernetes by assessing your applications to get …

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Getting Started With Kubernetes Namespaces Kube by Example

WEBTo list namespaced objects, such as our pod podintest, pass the --namespace variable to the get call: kubectl get pods --namespace=test. You can remove the namespace (and …

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Kubernetes Liveness, Readiness & Startup Probes Kube by Example

WEBObjectives. Leverage how to avoid applications overusing system resources. Review how Kubernetes evaluates application health status via probes and automatic application …

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Exposing Applications for Internal Access Kube by Example

WEBUsing kubectl expose. The easiest way to create a service is by using the kubectl expose command. [user@host ~]$ kubectl expose deployment deployment-name --port= 8081 - …

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Controller reconcile function Kube by Example

WEBLearn to build and deploy your application in a real environment. You can deploy a Kubernetes cluster on a local machine, cloud, on-prem data center, or choose a …

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