infra | cloud | opensource
by Muhammad Aizuddin Zali · Published January 21, 2020 · Last modified February 12, 2020
Official documentation of Red Hat OpenShift Container Storage can be found here. This blog merely written only to show on the technical feasibility such configuration without taking any official supportability scope in context. As...
by Muhammad Aizuddin Zali · Published July 1, 2019 · Last modified February 13, 2020
Hello everyone, just a couple of month ago, Red Hat has released a shiny OpenShift 4 [1] based on CoreOS technology. In this guide, we going to see how we can install OCP4 UPI...
by Muhammad Aizuddin Zali · Published March 4, 2019 · Last modified February 14, 2020
INTRODUCTION Just like an RPM signing, container image singing can be used to verify authenticity of a container image created by users/developers throughout image life-cycle. The concept of verification are similar to RPM gpgcheck...
Cloud / Kubernetes / OpenShift
by Gini Gangadharan · Published November 16, 2018 · Last modified November 14, 2019
There are several cases a PV (PersistentVolume) appear as Failed in OpenShift or Kubernetes cluster. Once of the reason is wrong ClaimRef by which PV will mark as claimed but actually not in use....
Automation / Cloud / Infrastructre & Hardware / OpenShift
by Gini Gangadharan · Published November 1, 2018 · Last modified November 2, 2018
Usually application owner or project owner will specify the quota settings (Memory and CPU) during project creation. But sometimes, they realize that the requested resource is not enough to run their applications. Usually we...
Automation / Cloud / Infrastructre & Hardware / OpenShift
by Gini Gangadharan · Published October 4, 2018
When we have issue with container and we are not sure which pod the container belongs to; we can find the pods details as below. Use case : we have some zombie process running...
We will have requirements, where customer need to configure multiple projects but they want pods inside those projects to communicate each other. Since each projects will have its own netnamespace, communication will not happen...
