Jenkins is used to automating the software build, and deliver or deploy the build and is an open source automation server. It should be installed with the help of native system packages, Docker, or even run standalone by any system with a Java Runtime Environment (JRE) installed.
Basically, Jenkins offers continuous integration which is useful to accelerate the development. There are ample of plugins available which enable the integration for Various DevOps stages. For example, Maven 2 project, Amazon EC2, Git, HTML publisher, etc.
More in-details information about the Jenkins can be found in our training material on Jenkins and if you are intrusive about what type of questions about Jenkins is asked in job interviews, then feel free to view our set of Jenkins interview questions.
It is an open-source platform which is useful to automate the IT engine which really pushes off the slavery work from DevOps day to day life. Generally, Ansible useful in three day to day task, configuration management, Provisioning, and application deployment.
Most important, it is able to automate traditional servers, virtualization platforms, or the cloud one. It is constructed on playbooks which can be practical to an extensive variety of systems for deploying your applications. If you want to know more, you may have a look at our Ansible training material or go through our set of interview questions on Ansible.
The chef is also an open source configuration management system and acts as a master-client model. It is carrying a transparent design and works orientation on instruction which has to be defined properly. Before you think using this tool you have to ensure that you have a proper Git practice going on and you have knowledge about Ruby as this is completely developed on Ruby.
The market says that this is better to have for development-attentive environments and enterprise mature architecture. Our widely detailed training course on Chef will provide you more insight into this tool.
Basically, Puppet works as a master-client setup and used as model driven. Puppet is developed on Ruby but you are able to customize this as scripting language somewhere close to JSON. Puppet is useful for you to acquire control of full-fledged configuration management. This tool somewhere supports Admin (Part of DevOps) to add maturity and stability towards configuration management. You can find a more detailed explanation of Puppet and its functionality in our training material.
A tool designed to help developers and administrators to offer flexibility to decrease the count of the system as docker don’t create a complete virtual operating system, instead, they permit software to utilize the same Linux kernel as the system. So normally we can say we use Docker to develop, deploy, and run the software by using containers.
According to statistics submitted by docker that over 3.5 million applications placed in containers using docker and 37 billion containerized applications have been downloaded. Exactly, Docker CI /CD offered an opportunity to have particularly like a live server and run different development infra form the same host with various configurations and OS. You should go to our training course on Docker to get detailed information.
Kubernetes is basically built to manage containerized applications, which offers high availability and scalability. As per the usage we can upgrade and downgrade the system, we can do rolling updates, switch traffic between different versions, rollback feasibility of the application. So we can have various instances having Kubernetes installed and can be operated as Kubernetes cluster.
After this you get an API endpoint of Kubernete cluster, configure Kubel and you are prepared to serve. Visit our all-inclusive course material on Kubernetes to collect more information on the Kubernete. Kubernetes and Docker, are being widely used tools as DevOps automation tools, have prominent differences between their installation, setup, and their aspects.