The ClusterIP is one of the three services in Kubernetes. When creating a manifest file in yaml format if the kind is service, and no type is mentioned, Kubernetes assumes that it will be ClusterIP by default. Let us…

The NodePort is one of the three services in Kubernetes. When a pod is deployed with a container, the worker node in which the pod gets deployed has an IP accessible from the master node, etc and…

We will use a CentOS server to install PostgreSQL. The below command installs the PostgreSQL server. [root@SHIJU-TEST-PGSQL-01 ~]# dnf install postgresql15-server -y [root@SHIJU-TEST-PGSQL-01 ~]# postgresql-setup initdb [root@SHIJU-TEST-PGSQL-01 ~]# systemctl start postgresql [root@SHIJU-TEST-PGSQL-01 ~]# systemctl status…

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…

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…

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…

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…