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The most popular types of Java variables are Instance, Local and Static variables. We learned about the declaration, initialization, and syntax of variables.

In this tutorial, we learned about Java multiline comments, single line and inline comments. We covered different types of comments that we supported by java programs like a single line, multiline and Javadoc.

Defensive programming can be tough to write source code, but it results in high- quality foolproof code

In this tutorial, we will learn how to install MariaDB on Rocky Linux 8.4. You may also check the mariadb page link for the official instructions to install

git rebase is used to integrate changes from one branch into another. rebase takes a series of commits (normally a branch) and replays them on top of another commit (normally the last commit in another branch). The …

Game development might sound as simple as creating a video game. But have you ever thought about what it looks like

Prevent ping flood attack in Linux using iptables and firewalld for both IPv4 and IPv6. Apply hash limit to ICMP Echo request to control ping flood in Linux and Unix servers.

Add a label to node. Remove a label from node. Use kubectl label node to add or remove a label from worker or controller nodes in Kubernetes Cluster

Learn to implement password policy with complexity, old password reuse and more using pwquality.conf explained with examples in RHEL/CentOS 7 Linux

Step by step instructions to configure ansible on RHEL/CentOS 8. Since ansible is agentless we don't need any configuration on managed nodes.

How to use ansible without installing python3 on managed nodes. Can we use ansible without python? How to use raw module in Ansible?

We can also use password instead of passphrase to connect with controller to managed nodes using --ask-pass. By default ansible will not prompt for any password.

Ansible facts is a term used for system information of the managed nodes. By default ansible playbook will gather facts from the managed nodes using setup module

YAML uses indentation (like Python), which builds the relationship of items with one another and In Ansible, nearly every YAML file starts with a list.

Ansible loop is used to iterate over multiple tasks in playbook. It supersedes with_items in Ansible with later version as with_* are deprecated

We can use Ansible import module to add playbook, tasks from another file into a different playbook. This can help use the same set of tasks across multiple playbook and save space

Related Searches: drain kubernetes node, kubectl drain command, remove node from cluster kubernetes, kubernetes evict pods from node, kubernetes drain and

You can use the helm.sh/hook-weight annotation to hook resources that need to be created in a specific order. This weight can be any positive or negative integer number.

Examples and commands to show NFS shares on NFS server, List NFS mount points on NFS Clients, List NFS clients connected to the NFS server, List NFS shares in Linux

This tutorial contains a list of nfs exports options in Linux with examples to create NFS share using /etc/exports. You can share with multiple hosts, single or world

Kibana Tutorial to setup, install and configure Kibana dashboard with SSL/TLS encryption over HTTPS for elasticsearch cluster with examples in Linux.

Steps to install and configure logstash 7.x and send data from logstash to elasticsearch. Monitor the logs on Kibana dashboard using index pattern

Tutorial to install and configure metricbeat to monitor elasticsearch cluster in ELK Stack on RHEL/CentOS 7/8 Linux with examples over SSL/TLS (HTTPS)

A Kubernetes DaemonSet ensures a copy of a Pod is running across a set of nodes in a Kubernetes cluster.

A Kubernetes init container is an additional container in a Pod that completes a task before the "regular" container is started. The regular container will only be started once the init container has been started

Kubernetes namespace implements strict resource separation. Resource limitation through quota can be implemented at a Namespace level also

Kubernetes cron job scheduler can be used to control the a Job resource according to the Job template configured in the CronJob object. When the Job resource is created, one or more pod replicas will be created and …

The Kubernetes resource quota is applied on the namespace using CPU, memory, storage and object count such as number of pods in the namespace

Kubernetes provides labels, selectors and annotations to organize the cluster nodes. These are mostly used with replication controllers and replica sets in a deployment

Kubernetes ReplicaSet and ReplicationController (deprecated) are used to scale the number of Pods and make sure the minimum number of Pods are always running.