Protected: Kubernetes: Deploy a 3 node cluster
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Protected: ManageEngine: Installation
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Kubernetes: Apps and pods
A Pod is the smallest deployable units of computing in a Kubernetes environment. A pod can host just one application (container) or several. Let us see if there are any pods running in the default…
Kubernetes: NameSpace
The namespaces in Kubernetes provides a way for separating groups of resources hosted within a single cluster. While the default namespace where all the pods and applications get hosted is in the “default” namespace, the…
Kubernetes: Basic commands
Once the installation of Kubernetes cluster is competed, let us go with the basic commands. The below command lists the pods running on the cluster. Remember that there are several services used by Kubernetes already…
Cron – Configure Recurring jobs
The cron application enabled users to run recurring jobs utomatically. It can include taking a backup at 03:00 AM every day, capturing users who have logged in at 5:00 PM, etc. The daemon that runs…
Ansible: The copy module
The module ansible.builtin.copy enables users to copy files from the controller node to managed nodes. It also helps to add/modify a destination file with a specific content. In the below example we use three groups in…
Ansible: Download a file from website and replace value
In this post we are going to see how we can use the below two modules to download a file from a URL or and FTP server to the managed nodes, and replace certain content…
Time Date and Timesync using Chronyd
Every system has a clock and is a critical component of the Operating System. It keep the time, which is used for various proposes such as: Running automated jobs as configured intervals Marking timestamp on…
Protected: PostgreSQL: Installation – Replication and HA
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