infra | cloud | opensource
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...
Careers / Infrastructre & Hardware / Technical Events
by Gini Gangadharan · Published February 25, 2019
Red Hat is offering its beginner level Linux course at no-cost; yes you heard it right – Its free ! Red Hat Enterprise Linux Technical Overview (RH024) is offering as Video Classroom and you...
This year AWS Summit Singapore will happen on April 10–11, 2019 at Singapore Expo Convention & Exhibition Centre. AWS is introducing a new session called TechFest on April 10, a full day dedicated to...
Ansible / Automation / Infrastructre & Hardware
by Prajith Parammal · Published February 18, 2019 · Last modified February 19, 2019
Most of the time , we have requirement to integrate Linux systems in our environment with AD for Centralized user management. It will be tedious , if we have 100+ or more Linux servers...
by Muhammad Aizuddin Zali · Published February 14, 2019 · Last modified February 19, 2019
Introduction Enforcing strong and modern cipher is critical to ensure our deployment are well protected from old and weak cipher. Enforcing only strong and modern cipher will significantly reduced or not too bold to...
Labeling an object in OpenShift or Kubernetes is an awesome method to organize, group, or select API objects. Labels can be used to group arbitrarily-related objects; for example, all of the object like pods,...
Automation / Cloud / Kubernetes / OpenShift
by Gini Gangadharan · Published January 24, 2019 · Last modified January 25, 2019
There might be situations where you have already deleted pods (or already removed dc aka deployment configuration) but pods are stuck in Terminating state. There are few suggestions if you google around (Red Hat...
Ansible / Automation / Infrastructre & Hardware / Online Events / OpenShift / Technical Events
by Gini Gangadharan · Published January 23, 2019
Join this Red Hat webinar to see how to use Jenkins pipelines to deploy simple applications using Ansible Tower. Here see the quick overview of agenda. Configure and create a new Ansible Tower project....
Cloud / Google Cloud Platform / Kubernetes / Online Events / Technical Events
by Gini Gangadharan · Published January 9, 2019
Google Cloud is arranging Global Digital Conference on 24th January 2019. Agenda has two tracks : Serverless – Build and ship applications faster – Which will cover serverless concepts and machine learning. CI/CD –...
This is simple and straight forward. Below snippets are from a Cisco 3120X Blade Switch. Check the interface details on port Gi1/0/1. ams-101-sw1>enams-101-sw1#sh run | begin interface GigabitEthernet1/0/1 interface GigabitEthernet1/0/1 switchport access vlan 401...
There are several cases a PV (PhysicalVolume) 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....
