Pip is a platform independent package management software. Pip stands for “Pip Installs Packages”. The Python Packaging Authority (PyPA) maintains many of the python relevant projects. The software developed through the PyPA is used to package, share, and install Python software and to interact with indexes of downloadable Python software such as PyPI, the Python […]
RHEL 7
Kubernetes /Minikube – How to Deploy Application using Dashboard ?
How to deploy an application on Kubernetes using Dashboard? “Minikube“ is one of the Kubernetes’s variant to experience on a desktop/laptop. This article will walk through how to create deploy a new application on Kubernetes cluster. We could deploy a containerized applications on top of Kubernetes cluster using the various method. In this example, we […]
RHEL 7 / Cent OS 7 – “fwupdate-efi” conflicts with “grub2-common”
Have you got the package conflict error while installing the specific package on RHEL 7 /CentOS 7? Frequently, “fwupdate-efi” package conflicts with the “grub2-common” package in RHEL 7 / CentOS 7 environment. This article will provide the step by step procedure to resolve package conflict errors. In general, if you get such error, you must […]
Ansible – Download Roles from Ansible Galaxy
Writing Playbooks and Roles are simple but yet to spend time for referring to the module’s man pages and need to build the logic with proper error handling. Ansible galaxy is a place where you can get the pre-written roles for various automation purposes. Galaxy hosts more than 18,000 roles written by the community members. […]
RHEL 7 – Pacemaker – Cluster Resource Agents Overview – Part 5
Resource agents plays an important role in cluster management. Resource agents are multi-threaded processes that provides the logic to manage the resources. Pacemaker has one agent per resource type. Resource type could be a File-system , IP address , databases, virtual-domain and more. Resource agent is responsible to monitor, start , stop,validate , migrate , promote and demote […]
RHEL 7 – Installing Redhat Cluster Software (Corosync/pacemaker) – Part 3
In this article, we will see that how to install Redhat cluster software (Pacemaker) on RHEL 7. If you have valid redhat subscription , you can directly configure redhat repository and install the packages. It also available in the RHEL 7 ISO image as an Add-on Package. Unlike previous redhat cluster releases , Redhat cluster 7 installation […]
Compare Redhat Cluster Releases – RHEL 7 HA vs RHEL 6 HA – Part 1
In this article ,we will see the difference between Redhat cluster 6.x (Red Hat Enterprise Linux High Availability Add-On Release 6) and Redhat Cluster 7.x releases (Red Hat Enterprise Linux High Availability Add-On Release 7). In RHEL7 onwards “pacemaker” is the default cluster resource manager. Corosync is open source cluster engine which is responsible to […]