News Category: Virtualization and Containers

Who Is Running My Kubernetes Pod? The Past, Present, and Future of Container Runtimes

In the Linux operating system world, container technology has existed for quite some time, reaching back over a decade to the initial ideas around separate namespaces for file systems and processes. At some point in the more recent past, LXC was born and became the common way for users on Linux to...
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An Introduction to Ansible Operators in Kubernetes

For years, Ansible has been a go-to choice for infrastructure automation. As Kubernetes adoption has skyrocketed, Ansible has continued to shine in the emerging container orchestration ecosystem. Ansible fits naturally into a Kubernetes workflow, using YAML to describe the desired state of the...
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Ubuntu Fan Aims to Simplify Container Networking

Most people will think of Ubuntu as primarily a Linux server and cloud technology effort. Ubuntu also has some networking capabilities that it develops on its own including the Fan container networking project. There are multiple open source SDN efforts in the market today that more well known than...
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A New Method of Containment: IBM Nabla Containers

By James Bottomley In the previous post about Containers and Cloud Security, I noted that most of the tenants of a Cloud Service Provider (CSP) could safely not worry about the Horizontal Attack Profile (HAP) and leave the CSP to manage the risk.  However, there is a small category of jobs (mostly...
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Kubernetes 1.12 Improves Cloud-Native Security With TLS Bootstrap

The third major release of the open-source Kubernetes container orchestration system in 2018 is now out, providing users with a stable release of a key security feature that has been in development for two years, while previewing a new sandboxing isolation capability. On Sept. 27, the Cloud Native...
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Running a Container with a Non-Root User

One best practice when running a container is to launch the process with a non root user. This is usually done through the usage of the USER instruction in the Dockerfile. But, if this instruction is not present it doesn’t necessary mean the process is run as root. The rational By default, root in...
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Distributed Tracing Infrastructure with Jaeger on Kubernetes

Kubernetes has become the de-facto orchestrator for microservices infrastructure and deployment. The ecosystem is extremely rich and one of the fastest growing in the open-source community. A monitoring infrastructure with Prometheus, ElasticSearch, Grafana, Envoy/Consul, Jaeger/Zipkin make up a...
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10 Virtualization Mistakes Everyone Makes

Virtualization can give anyone a headache if it’s not properly set up and thought through. Here are the top 10 mistakes and how to prevent them. Although we often discuss virtualization as a new thing, the need for the technology is almost as old as computing itself, dating back to the 1960s....
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Graduation Day for Prometheus, the Open-Source Container Monitoring System

The Cloud Native Computing Foundation today officially graduated Prometheus from incubation, opening a new chapter in the popular open-source project’s evolution. Prometheus is one of the most widely used systems for monitoring software container deployments. As such, the project has taken on an...
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Half Year in Review – Four Leading Virtualization Products

Nowadays, virtualization is becoming the top priority need for many organizations and they take special care of it while designing their IT infrastructures. The trend of using virtualization instead of hardware storage is just not an occasional practice rather it has become important because of the...
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