Devops

Use of Init-Container in Kubernetes

Reading Time: 3 minutes This is the era of containerization and orchestration where the majority of the applications are following the trend of running on a container which is further deployed in a Kubernetes cluster. Init-container in Kubernetes is a special type of container that runs to completion before the main app’s container and the pod will repeatedly restart until all of them succeed. Why init-Containers ? It’s sometimes Continue Reading

Backup and Restoring In Jenkins

Reading Time: 4 minutes If you are using Jenkins for a while then you must be aware about the importance of jobs related data and what can happen when the data is lost. This blog provides some ways through which backup and restoring in Jenkins can be carried out. The data loss can be the result of hardware or software failure, data corruption, or a human-caused event, or accidental Continue Reading

Dive into Jenkins Roles

Reading Time: 4 minutes Concept of Roles in Jenkins A role in Jenkins basically refers to a user that can has access to Jenkins. A user can be an administrator or any non-admin privileged entity. A role can be assigned to a user to indicate the set of privileges assigned to that particular user. These privileges can be admin privileges or an admin user can then create many roles Continue Reading

docker

Docker manifest – A peek into image’s manifest.json files

Reading Time: 4 minutes docker manifest – An experimental feature ! The image manifest provides a configuration and a set of layers for a container image. This is an experimental feature. To enable this feature in the Docker CLI, one can edit the config.json file found in ~/.docker/config.json like : What is ‘docker manifest’ ? The docker manifest command does not work independently to perform any action. In order Continue Reading

A Quick Guide through UFW – Uncomplicated Firewall

Reading Time: 4 minutes UFW, short for Uncomplicated Firewall, is basically a simplified firewall mechanism that is implemented upon iptables itself. As a result, making it much easier to configure ufw than to configure iptables. Therefore, it can be said that ufw is technically a program for managing a netfilter firewall which aims to provide an easy to use interface for the user. Need for UFW – uncomplicated firewall Continue Reading

docker

A word on ‘docker buildx’

Reading Time: 4 minutes What is Docker Buildx ? Docker Buildx can be defined as a CLI plugin that provides us with the extra features supported by the Moby BuildKit builder toolkit along with the features of the normal docker commands. Furthermore, it also provides us with the same user experience as building with the docker build command. Also, along with some new extra features added over it like Continue Reading

What is the ELK Stack?

Reading Time: 3 minutes ELK Stack or more recently called Elastic Stack, is a combination of three open source projects – Elasticsearch, Logstash and Kibana – all developed by Elastic and used for storing and analyzing logs. Even though these are three separate products, they compliment each other to the extend that they have come to be recognised as one. Why Log Analysis? Before getting to know more about Continue Reading

Orchestration With Docker-Swarm

Reading Time: 6 minutes The world is constantly being attracted towards containers and its orchestration especially in large and dynamic environments which has also led to the rising of various tools and platforms in trend.Yes, we will be looking at Docker-Swarm and some of its key components !!! As we all know that Docker is a major player in the world of containers and therefore in this blog, we Continue Reading