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The agile approach to software development relies on service virtualization to give each IT team autonomy. This approach removes blockages and allows autonomous teams to continue development activities without having to wait on anyone. That way, integration testing can commence as soon as teams start iterating/sprinting.
Apache Virtual Hosts allows you to run more than one website on a single machine. With Virtual Hosts, you can specify the site document root (the directory containing the website files), create a separate security policy for each site, use different SSL certificates, and much more.
Docker is a platform that combines applications and its dependencies in the form of packages, called container. We can run multiple containers on a single Operating System. This tutorial explains, how to install docker on ec2 instance.
Performance appraisal has been done via attempt to set up Manjaro 19.0 Guest as KVM virtualization host installing Qemu && Libvirt via native command `pacman -S`.
Mirantis started out as a pure-play OpenStack company, but as the market dynamics changed, the company adjusted its own positioning and bet on CD platforms like Spinnaker and container orchestration technologies like Kubernetes. So, what are they focusing on today?
The post Mirantis: Balancing Open Source with Guardrails appeared first on Linux.com.
Whether you are a regular user or developer or system admin, you can create and launch Ubuntu VMs with Multipass instantly in a matter of seconds in Linux.
When using VMware as the hypervisor, it is important to install VMware Tools in the guest to enhances the virtual machine performance.
CNCF plays a critical role in building a vibrant ecosystem around Kubernetes, creating a massive community to build, nurture and commercialize cloud-native open source technologies. The post How Kubernetes Became the Standard for Compute Resources appeared first on Linux.com.
Oracle released VirtualBox 6.1.4, a new maintenance update to the latest VirtualBox 6.1 series of the popular open-source and cross-platform virtualization software.
Support ends May 26. Users fretting over Fedora CoreOS's limitations might want to jump into Flatcar. Red Hat is set to fling a flaming arrow at Red Hat CoreOS Container Linux*, the software firm said as it laid out the details of the end of life timeline for the distro it acquired in January 2018.…
The Guest Additions offer several useful functionalities for guest machines such as shared folders, shared clipboard, mouse pointer integration, better video support, and more.
Want to help lock down Kubernetes and make some money while you're at it? The Cloud Native Computing Foundation has a new bug bounty program for you.
Without real automation, you won’t realize the full potential of containers. That’s where Kubernetes Operators play a growing role. Here’s what IT leaders should know
In this Docker tutorial, you’ll learn various ways of running a container along with the explanation of various options that are used.
Docker is a free and open-source tool that uses OS-level virtualization to deliver software in packages called containers. Docker is specially designed to make it easier to create, deploy and run applications by using containers. Docker containers are lightweight and very similar to Virtual Machine, using the host OS. Containers allow you to package up an application with all required libraries and other dependencies and ship it in one package.
Today, using serverless means choosing a cloud platform to lock yourself into. The open source project expected to fix that is approaching prime time.
Some of our applications are hosted in a Kubernetes cluster, and we use GitLab Continuous Integration (CI) to automate deployments and Helm 2 to deploy our applications. Helm charts enable the storage of templates of Kubernetes object YAML files with variables that can be programmatically set from command-line arguments passed when the chart is used during deployments. This allows us to store critical secrets in GitLab-protected environment variables or in Hashicorp Vault and use them within the CI deployment job.
Oracle has released today the first maintenance update to the latest VirtualBox 6.1 series of its open-source and cross-platform virtualization software for all supported platforms.
Red Hat is releasing a new version of its OpenShift Kubernetes platform, OpenShift 4.3, with better container storage support via Red Hat OpenShift Container Storage 4.
There are a ton of ways that you can install RHEL 8 on a virtual machine. This guide will cover using KVM with and without virt-manager as well as VirtualBox.
Contributing to open source as a hobby is a great way to dip your toes in the water on a new technology—and maybe even advance your career in the process. IBM software engineer Tara Gu found both of those things to be true when she started contributing to the Kubernetes container engine project in 2018.
As Kubernetes adoption grows, what can IT leaders expect in the year ahead? Look for more "Kubernetes-native" apps, security focus, and smarter resource consumption.
VMware has wrapped 2019 with the addition of Pivotal to its ever growing family. The post VMware Wraps 2019 With Pivotal Acquisition appeared first on Linux.com.
When LinkedIn released its third annual Emerging Jobs report, engineers everywhere said, "Amen." More than half the list consists of engineering roles, with new fields like robotics appearing for the first time. But data science had a strong showing as well. The role shows 37% annual growth, topping that aspect of the Emerging Jobs list for the third year in a row.
Vagrant is a command-line tool for building and managing virtualized development environments.
What is in a Kubernetes namespace? As Shakespeare once wrote,?which we call a namespace, by any other name, would still be a virtual cluster. By virtual cluster, I mean Kubernetes can offer multiple Kubernetes clusters on a single cluster, much like a virtual machine is an abstraction of its host.
Docker Compose is a tool that can be used to define and run multiple containers as a single service. In this tutorial, we will show you how to install and use Docker Compose in CentOS 8.
Amazon Elastic Container Registry (ECR) is a managed container registry service of AWS. In this article, we will see how to create an ECR registry, repository, and push and pull the Docker image to/from it.
This article explains how to properly upgrade to VirtualBox downloaded from Oracle (either by downloading it from the VirtualBox website, or installed from the Oracle VirtualBox repository) when you have the Ubuntu repositories version of VirtualBox installed on your system. This also applies to those using Ubuntu-based Linux distributions, like Linux Mint, elementary OS and Pop!_OS.
A new major VirtualBox version has been released, bringing improvements for the new VBoxSVGA and VMSVGA graphics controllers, experimental support for file transfers via shared clipboard, support for Linux 5.4, and more.
You can use Dockerfiles to build your container images, but these files have limitations. How about building them yourself?
Oracle released today the final version of the VirtualBox 6.1 open-source and cross-platform virtualization software for GNU/Linux, macOS, and Windows operating systems.
One common error in Virtualbox is the lack of hard drive space in the virtual machine. Here's how to increase Virtualbox hard drive space with Clonezilla.
What's the state of Kubernetes? At Kubecon, I saw a lot of progress – but also, the need to focus on making Kubernetes more accessible to beginners.
VirtualBox is an open-source, cross-platform virtualization platform. It supports a number of guest operating systems, including Linux and Windows, and allows you to run multiple virtual machines simultaneously.
The docker run command creates a container from a given image and starts it using a given command. It is one of the first commands you should become familiar with when starting to work with Docker. In this article, we'll use the official Nginx image to show various ways to run a Docker container.
Docker Compose is a tool designed to run multiple Docker applications at the same time. Compose can be used to run a stand-alone application as well as communicate with the other containers present on the same host. With Compose you use a YAML file to configure all of your Docker containers and configurations all in one place. In this tutorial, we will cover the steps needed for installing Docker Compose on a CentOS 7 VPS, as well as go over a few commands you can do with Docker Compose.
Ceph is a modern data storage platform, working across a variety of hardware and technologies used for cataloging, aggregating, and analyzing data.
Docker is a containerization platform that allows you to quickly build, test, and deploy applications as portable, self-sufficient containers that can virtually run everywhere.
With 12,000 plus attendees, KubeCon is arguably the most popular open-source conference of all time. Behind it, numerous companies are turning to Kubernetes for their container orchestration.
Docker Compose is a tool for defining and running multi-container docker applications. With Compose, we use a YAML file to configure our application’s services.
As part of my role as a senior product marketing manager at an enterprise software company with an open source development model, I publish a regular update about open source community, market, and industry trends for product marketers, managers, and other influencers. Here are five of my and their favorite articles from that update.
Canonical announced high availability clustering in MicroK8s, its single-node Kubernetes environment for prototyping k8s applications and running edge containers on IoT gateways. The feature is enabled using Dqlite. Last month with the release of Ubuntu 19.10, Canonical announced “strict confinement” support for Canonical’s MicroK8s Kubernetes environment for single-node clusters, thereby enabling easier deployment on edge […]
Feeling a little shaky on your VLAN knowledge? This article gives you the fundamentals.
The troubled Docker company has sold its Docker Enterprise product line and business to cloud-power Mirantis.
How can you get started with Kubernetes? Maybe you’re ready to try an experiment – or move from sandbox to production? Use these three stepping stones for individuals and teams
In this brief guide, we will see how to use Dockerfile to automate the process of building custom docker images on Linux.
In this guide, we will learn how to create docker volumes, how to attach them to the containers and how to share same volumes with multiple containers.
It was fun to work at a large web property in the late 1990s and early 2000s. My experience takes me back to American Greetings Interactive, where on Valentine's Day, we had one of the top 10 sites on the internet (measured by web traffic). We delivered e-cards for AmericanGreetings.com, BlueMountain.com, and others, as well as providing e-cards for partners like MSN and AOL.
This tutorial shows you how to install docker on centos 8. We will cover adding user to group and test docker installation.
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