This means that an iSCSI volume is often pre-populated with data, and that data is often shared between pods.Īlso see: This blog covers the important part of Kubernetes which is Kubernetes Network Policy Kubernetes Persistency concepts The contents of an iSCSI volume are preserved and therefore the volume is simply unmounted. iSCSIĪn iSCSI volume allows an existing iSCSI (SCSI over IP) volume to be mounted into your Pod. The data stored during a ConfigMap are often referenced during a volume of type configMap then consumed by containerized applications running within a pod. configMapĪ ConfigMap provides a way to inject configuration data into pods. This is not something that the majority Pods will need, but it offers a strong hatchway for a few applications. Kubernetes hostPathĪ Kubernetes hostPath volume mounts a file or directory from the host node’s filesystem into your Pod. Kubernetes supports various types of volumes.
Note: Check out our blog post on Docker Storage Types of Volumes It can exist beyond the lifetime of a pod. While Persistent Volume has an independent lifecycle. It gets deleted when the pod gets deleted. It solves both of these problems.ĭifference between K8s Volume and Persistent Volume: Volume lifecycle is linked to a pod. At its core, a volume is just a directory, possibly with some data in it, which is accessible to the containers in a pod. That’s where Kubernetes Volume comes into the picture. One loss of files when the container crashes and second files can’t be shared with between containers. In this blog, I’ll cover Kubernetes persistent storage concepts.Īre you new to Kubernetes? Check out our blog on Kubernetes for Beginners.Ĭontainers are immutable means they don’t write data permanently to any storage location meaning that when a container is deleted, all the data generated during its lifetime also gets deleted. Persistent Storage in Kubernetes offers applications in K8s a handy way to request, and consume storage resources. Kubernetes is a complete containerization orchestration, which provides the ability to run dynamically scaling, management of containerized applications. Oracle EBS (R12) Integration With Identity Cloud Service (IDCS).Oracle EBS (R12) – OAM/OID Integration for SSO.Cloud Infrastructure Automation Certification.Oracle Cloud Infrastructure Architect Associate.Microsoft Azure Data Engineer Certification.
#What is kubernetes pvc professional#
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