Docker Tutorials: How to Install Docker in Ubuntu?
Install Docker Engine in Ubuntu NOTE – All commands you must run as root user or add a current user into a linux group name called “docker” How to beocme…
Read more »Top 50 Azure DevOps interview questions and answers
1) What is DevOps? DevOps is Development and Operation’s Collaboration, it’s a Union of 3Ps – Process, People and Product (working Product) that enable continuous integration and continuous delivery of…
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Artifactory Tutorials: Setup Docker repository and push/pull images?
Step 1 – Install Docker Step 2 – Enabe Docker insecure as Artifactory is insecure Step 3 – Login to docker Step 4 – Create an image or pull an…
Read more »Jenkins Tutorials: Install Jenkins as Docker Container
In the Previous Post we Learned How to install Jenkins as Servlet on Tomcat server. In this post we will try even simple and easy way to run Jenkins on…
Read more »Top Jenkins interview questions and answers
1. What is Jenkins? Jenkins is an open-source automation server that helps automate various aspects of software development, such as building, testing, and deploying code. It allows developers to set…
Read more »Docker Lab & Assignment – Dockerfile
Dockerfile Lab Exercise – 1 1. Write a dockerfile which has base ubuntu latest and apache latest. Run the apache default when you create a containers and apache welcome page…
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Docker Tutorials: Basic Workflow with example commands
Simple Docker workflow – Quick start In this tutorials, I am trying to cover the simple quickstart Docker workflow and for the example, I am creating Ubantu containee and using…
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Docker Tutorials: Docker Command line Reference | Docker Tutorial | Docker Guide
One liner to stop all of Docker containers: > docker stop $(docker ps -a -q) One liner to remove all of Docker containers: > docker rm $(docker ps -a…
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Docker Tutorials: Working with Ports in Docker Containers
Port expose and publish has to happen when a container is created. Just stop the existing container and create a new one in its place with the added expose and/or…
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Docker Tutorials: Lifecycle of Docker Containers
We need to carefully understand the life cycle of Docker containes. There are following images which depicts the the right phases of docker containers. Phase of Docker Containers Create ->…
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Docker Tutorials: docker pause and unpause explanined!
As of Version 0.12.0, Docker supports PAUSE and UNPAUSE commands to pause and resume containers using cgroup freezer. The docker pause command suspends all processes in the specified containers. On…
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Docker Tutorials: Volume – Deep Dive
In order to understand what a Docker volume is, we first need to be clear about how the filesystem normally works in Docker. Docker images are stored as series of…
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Docker Tutorials: Containerization Evolution and Benefits
What is Docker? Docker is a software platform that makes it easier to create, deploy, and run applications. Docker is a new technology that allows development teams to build, manage,…
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Docker Tutorials: Example of daemon.json or docker.conf
Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I am working at Cotocus. I blog tech insights at DevOps School, travel stories at Holiday Landmark, stock market…
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Docker Tutorials: What are the Advantage of Docker Containerization?
What is Docker? Docker is an open-source platform that uses developing, shipping and running containers. Docker’s workflow makes development, testing, and deployment much easier and much faster. Docker for real-world…
Read more »Docker Tutorials: Detached (-d) mode in Docker – Explained
We use Docker detached mode (-d) when we want to connect to the container in an interactive mode or we can say when we just want application to be running…
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What is Container Runtime Interface (CRI)?
Container Runtime Interface (CRI) Container runtime interface (CRI) is a plugin interface that lets the kubelet—an agent that runs on every node in a Kubernetes cluster—use more than one type…
Read more »Top 50 traefik Interview Questions & Answer
1) What is Traefik software? Traefik (pronounced traffic) is a modern HTTP reverse proxy and load balancer that makes deploying microservices easy. Traefik integrates with your existing infrastructure components (Docker,…
Read more »Top 50 Consul interview questions and answers
1) What Is Checkpoint? / Does Consul Call Home? Consul makes use of a HashiCorp service called Checkpoint which is used to check for updates and critical security bulletins. Only…
Read more »Top 50 Kubernetes interview questions and answers
1) What is Kubernetes? Kubernetes is a container management system developed in the Google platform. The purpose of Kubernetes is to manage a containerized application in various types of physical,…
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What is SELinux and how its SELinux used in Docker?
What is SELinux and how its SELinux used in Docker? SELinux, or Security-Enhanced Linux, is a part of the Linux security kernel that acts as a protective agent on servers. In the…
Read more »Top 50 TeamCity interview questions and answers
1) Is TeamCity a CI or CD? TeamCity is a general-purpose CI/CD solution that allows the most flexibility for all sorts of workflows and development practices. The Projects Overview lets…
Read more »Top 50 Bamboo interview questions and answers
1) What exactly do you know about release planning? It is basically a common approach in Bamboo. It must be done at least once a week. There are certain features…
Read more »Top 50 Openshift interview questions and answers
Q1. What Is Openshift? Answer : OpenShift is a cloud development Platform as a Service (PaaS) hosted by Red Hat. It’s an open source technology which helps organizations move their…
Read more »Top 50 Udeploy interview questions and answers
Q1) Can I use UrbanCode Deploy to automate the deployment of containers? Yes. UrbanCode Deploy can manage containers. Q2) Is UrbanCode Deploy available as a software-as-a-service offering? Yes. UrbanCode Deploy…
Read more »Top 50 Packer interview questions and answers
Q. Is it possible to feed packer with an ansible encrypted file? I’m attempting to use packer from an ansible playbook in order to use an ansible-vault encrypted file in…
Read more »What is the future of Docker and Kubernetes engineers?
In the current age, almost all IT companies are moving their infrastructure and architecture to cloud and DevOps trends. We can see cloud computing, containerization and orchestration solutions everywhere. When…
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What are the best tools to learn DevOps? How to start DevOps?
Friends, today I am going to let you know which tools are much better in DevOps, and how can we start our learning DevOps, by the way, all the DevOps…
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Install and Configure Prometheus for Collecting Docker metrics
How to install Install Docker Configure docker for exposing a Metrices at end point To configure the Docker daemon as a Prometheus target, you need to specify the metrics-address. The…
Read more »Complete guide of OpenShift certification courses, tutorials & training
What is OpenShift? Containerization make possible for IT organizations to become more agile and scalable, which help them to become more efficient in application development. If we believe on Gartner’s…
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