OpenShift:

• Installation of OKD 3.10 from start to finish (22min),
• Adding an SSL certificate to OKD – Part 2 of Installation of OKD 3.10 from start to finish (10min),
• A day in the life of a log message,
• Reza Shafii – State of the Union, OpenShift Roadmap and Vision – OCG Buenos Aires 2018 (29min),
• Kubernetes Ingress vs OpenShift Route,
• Increasing Security of Istio Deployments by Removing the Need for Privileged Containers,
• Introducing Red Hat Quay,
• Istio on OpenShift: Technology Preview of Service Mesh Now Available,
• Running Microsoft SQL Server on Red Hat OpenShift,
• Source versus binary S2I workflows with Red Hat OpenShift Application Runtimes,
• Scaling Java Containers,
• Sticking with HEAD on OpenShift with Image Streams,
• How to gather and display metrics in Red Hat OpenShift,
• Using Frameworks in OpenShift with Artifactory,

Kubernetes:

• How Kubernetes Is Transforming into a Universal Scheduler,
• CRI-O is now our default container runtime interface,
• Kubernetes: Naming Things,
• Welcome to Kubernetes 1.12,
• Digging into Kubernetes 1.12,

Containers:

• Using Systemd with Podman containers,

Ansible:

• Ansible 101: Part 1: In the beginning there was YAML,

Storage:

• OpenShift.io on Gluster: Adventures in production (46min),
• Approaches for duplicating Kubernetes storage with Gluster (55min),
• Introducing Red Hat Gluster Storage 3.4: Feature overview,
• Improved volume management for Red Hat OpenShift Container Storage 3.10,
• Running OpenShift Container Storage 3.10 with Red Hat OpenShift Container Platform 3.10,

Miscellaneous:

• PAM – Pluggable Authentication Modules for Linux and how to edit the defaults,
• The rise of non-microservices architectures,
• How to turn on an LED with Fedora IoT,
• Ansible Tower 3.3 Available Now,
• NetworkManager 1.14 Officially Released,
• Configuring the MongoDB WiredTiger memory cache for RHMAP,
• Understand Fedora memory usage with top,
• Troubleshooting FDB table wrapping in Open vSwitch,
• Observe what your Istio mesh is doing with Kiali,
• New CentOS Pastebin Instance,
• How to set up LDAP authentication for the Red Hat AMQ 7 management console,
• The future of Java and OpenJDK updates without Oracle support,
• Dynamic IP address management in Open Virtual Network (OVN): Part Two.

Another year passes.

This is an opportunity to slightly change the orientation of the website.

Until now, it was mainly about RHEL 7 / CentOS 7.

As I have spent the last six months building skills on OpenShift, I will provide articles on this subject soon, starting with a list of useful OpenShift articles sorted by theme. It seemed to me important to facilitate access to this wealth of knowledge.

I hope you still enjoy the website.

Containers:

• A sysadmin’s guide to containers,
• Intro to Podman (Red Hat Enterprise Linux 7.6 Beta),

Kubernetes:

• Experiences with running PostgreSQL on Kubernetes,
• The full-time job of keeping up with Kubernetes,
• Kubernetes + CentOS in 15 min (25min),

OpenShift:

• Red Hat OpenShift Container Platform Life Cycle Policy,
• How to gather and display metrics in Red Hat OpenShift,
• How to survive an outage and live to tell about it!

Ansible:

• Ansible 2.7 Release Notes,

Miscellaneous:

• 4 tips for better tmux sessions,
• Auto-generating news and publishing it to WordPress with Apache Camel,
• Asynchronous communication between microservices using AMQP and Vert.x,
• Sub-system Update: State of SELinux (9min),
• Linux Audit: Moving Beyond Kernel Namespaces to Audit Container IDs (37min),
• Dynamic IP Address Management in Open Virtual Network (OVN): Part One,
• Introducing Red Hat Gluster Storage 3.4: Feature overview,
• GNOME 3.30 released & coming to Fedora 29,
• SELinux prevents users from executing programs, for security? Who cares.

OpenShift:

• How to Use OpenShift’s Ansible Service Broker for Infrastructure Automation (5min),
• How to Do Advanced Routing Techniques in OpenShift on OpenStack (4min),
• Keeping both of your OpenShift Container Platforms Highly Available with Keepalived and HAproxy,
• Make a Kubernetes Operator in 15 minutes with Helm,

Containers:

• Python3 support for Podman to the rescue,
• Your Architect Brain Needs to Know How a Container Engine Works,
• Container Security: So Many Options, Use Them All!
• Two Types of People: Those Who Understand Container Standards and Those That Don’t,

Ansible:

• How to Manage Multiple Operating System Types with a Single Ansible Inventory (4min),

Miscellaneous:

• How to enable sudo on RHEL,
• How to Simplify Your Virtualization with Hyperconverged Infrastructure (4min),
• What to Consider when Integrating Red Hat Identity Manager with Active Directory (5min),
• How to Use the Features of OpenStack to Create Your Own Private Cloud (4min),
• CentOS Atomic Host 7.1807 Available for Download,
• Red Hat Certified Architect program changes,
• Reducing data inconsistencies with Red Hat Process Automation Manager,
• Simulate device input with evemu,
• Red Hat Enterprise Linux 7.6 Beta now available.

OpenShift:

• OKD: Renaming of OpenShift Origin with 3.10 Release,
• Multiline logs in OpenShift EFK stack,
• CRI-O now running production workloads in OpenShift Online,
• What’s New in Red Hat OpenShift Origin 3.10,
• Container-native integration testing,
• Promoting container images between registries with skopeo,
• Autoscaling the Red Hat Cache Service on OpenShift,
• Optimizing On GlusterFS Storage for Databases,
• GPU Accelerated SQL queries with PostgreSQL & PG-Strom in OpenShift-3.10,
• Backing up and restoring EDB containers in MiniShift/OpenShift,
• Troubleshooting OpenShift network performance with a netperf DaemonSet,
• Red Hat OpenShift Container Platform 3.10 with Container-Native Storage 3.9,

L1 Terminal Fault aka Foreshadow:

• Understanding L1 Terminal Fault aka Foreshadow: What you need to know,
• A deeper look at L1 Terminal Fault aka Foreshadow,

Firewalld:

• Firewalld: The Future is nftables,
• nftables backend,

Miscellaneous:

• How to use Fedora Server to create a router / gateway,
• Let’s Encrypt Root Trusted By All Major Root Programs,
• CentOS Pulse Newsletter, August 2018,
• How SELinux helps mitigate risk while facilitating compliance,
• How to install Python 3 on RHEL,
• Convert file systems with Fstransform,
• The CentOS team maintains a recent experimental kernel in its AltArch repository,
• Slight changes in epel-release to unify all arches (x86_64 and AltArches),
• Improving rsync performance with GlusterFS.

Kubernetes:

• Dynamic Ingress in Kubernetes,
• Kubernetes 1.11: In-Cluster Load Balancing and CoreDNS Plugin Graduate to General Availability,
• Airflow on Kubernetes (Part 1): A Different Kind of Operator,
• IPVS-Based In-Cluster Load Balancing Deep Dive,
• CoreDNS GA for Kubernetes Cluster DNS,
• Dynamic Kubelet Configuration,
• Resizing Persistent Volumes using Kubernetes,
• 11 Ways (Not) to Get Hacked,
• Feature Highlight: CPU Manager,
• KubeVirt: Extending Kubernetes with CRDs for Virtualized Workloads,
• Connecting and managing microservices with Istio 1.0 on Kubernetes,
• Bending Kubernetes to your needs,
• Kubernetes Security: from Image Hygiene to Network Policies,

OpenShift:

• Embedding Security in the Container Runtime,
• Red Hat OpenShift Container Platform 3.10 is now available for download,
• Paving the way for intelligent and performance-sensitive applications on Kubernetes with Red Hat OpenShift Container Platform 3.10,
• How to use GPUs with DevicePlugin in OpenShift 3.10,

Ansible:

• Creating a load-balanced web service on cloud with Ansible,
• Automation Broker Versioning,

Miscellaneous:

• Security Technologies: ExecShield,
• The Ascendance of nftables,
• Announcing updated Red Hat Developer Studio and Container Development Kit,
• Natively compile Java code for better startup time,
• A sysadmin’s guide to Bash,
• Storing tables in Ceph object storage,
• Building tiny container images,
• Fedora’s Documentation Website has been overhauled,
• Container-native integration testing.

OpenShift / Kubernetes:

• Crictl Vs Podman,
• Smart-Meter Data Processing Using Apache Kafka on OpenShift,
• Why are customers choosing Red Hat’s Container-Native Storage in the public cloud with OpenShift?
• Care and Feeding of Minishift Development Environments,
• Add a Layer of Security to OpenShift/Kubernetes with CRI-O in Read Only Mode,
• Building an Kubernetes Operator for Prometheus and Thanos,

Container:

• Unleash powerful Linux container-building capabilities with Buildah,
• What is sVirt and How Does it Isolate Linux Containers?

Ansible:

• Latest Version of Red Hat Ansible Engine Enables New Cloud, Network, and Windows Automation,
• Shell scripts to Ansible,
• Ansible Galaxy: doin’ it right,
• Dynamic Kubernetes Client for Ansible,

OpenStack:

• Virtualize your OpenStack control plane with Red Hat Virtualization and Red Hat OpenStack Platform 13,
• Now available on OpenStack 13 – Red Hat OpenStack Administration I: Core Operations for Cloud Operators (CL110),
• Red Hat OpenStack Platform 13: five things you need to know about networking,

Storage:

• The Future of Storage in Container Space: Part 1, Part2 & Part3,
• Anatomy of the S3A filesystem client,
• HTTPS-ization of Ceph object storage public endpoint,

SELinux:

• Fun with DAC_OVERRIDE and SELinux,
• unlabeled_t type,

Miscellaneous:

• Prometheus Internal Architecture,
• Insights Security Hardening Rules,
• Introducing now + Next.

OpenShift / Kubernetes:

• Why Kubernetes is The New Application Server,
• Put Your IDE in a Container with Guacamole,
• Using OpenShift to deploy .NET Core applications,
• Identify yourself on minishift,
• Competition Heats Up Between CRI-O and containerd,
• Kubernetes is the Platform. What’s next? – Questions and Answers,

Miscellaneous:

• Ansible 2.6: Your Time Has Come!
• Release for CentOS Linux 6.10 i386 and x86_64,
• CentOS Pulse Newsletter #1802 – 3 July 2018,
• Release of Gluster 4.1 on CentOS Linux 7 x86_64,
• Temporal side-channels and you: Understanding TLBleed,
• Improving CentOS package delivery security with signed repository metadata,
• How to install Clang/LLVM 5 and GCC 7 on RHEL.

OpenShift / Kubernetes:

• An Open Source Load Balancer for OpenShift,
• CRI-O: How Standards Power a Container Runtime,
• Kubernetes StatefulSet In Action,
• How Container Runtimes matter in Kubernetes?
• Kubernetes 1.11: Custom Resources, Pod Priority and Preemption, and more,

OpenStack:

• Red Hat OpenStack Platform 13 is here!
• “Ultimate Private Cloud” Demo, Under The Hood!
• Red Hat OpenStack Platform fast forward upgrades: A step-by-step overview,
• Red Hat Certified Cloud Architect – An OpenStack Perspective:
  • part 1,
  • part 2.

Containers:

• Welcome to Fedora CoreOS,
• Fedora CoreOS, Red Hat CoreOS, and the future of Container Linux,
• CentOS Atomic Host 7.1805 Available for Download.

Miscellaneous:

• Troubleshooting Open vSwitch DPDK PMD Thread Core Affinity,
• Systemd v239 released,
• What’s coming in Fedora 29 Anaconda?

OpenShift:

• The Operator Metering project is now available,
• Building Container-Native Node.js Applications with Red Hat OpenShift Application Runtimes and Istio,
• The Path to Cloud-Native Trading Platforms,
• Remotely Debug an ASP.NET Core Container Pod on OpenShift with Visual Studio,

Containers:

• Getting started with Buildah,
• A daemon-haunted (container) world no longer: Introducing Buildah 1.0,
• Containers Don’t Run on Docker,
• How to sneak secrets into your containers, without leaving a trace,

Miscellaneous:

• RedHat official Ansible roles,
• Cool SELinux hack provided by systemd,
• Lazy FPU Save/Restore (CVE-2018-3665),
• Debugging Memory Issues with Open vSwitch DPDK.