Yesterday around 6PM, IBM announced the purchase of the company Red Hat for 34 billions dollars.

This announcement appeals to investissors from both sides: IBM buys a company known for its innovation; Red Hat’s shareholders get a good value for their shares.

However, it is unclear what will happen to Red Hat product portfolio: OpenShift, CentOS, Fedora, …

We also do not know how Red Hat employees, and even more ex-CoreOS employees will react to this culture change, plan to stay in this new subsidiary or create start-ups …

I have always liked the spirit of independance of Red Hat. Now, I do not know if the company will maintain its momentum in this new configuration.

I only know one thing: people who think nothing will change are wrong.

OpenShift:

• OpenShift 3.11 Cluster Console Demo – RoleBindings (3min),
• OpenShift 3.11 Cluster Console Demo – EventFeed (2min),
• OpenShift 3.11 Cluster Console Demo – Monitoring (3min),
• Connecting Multiple OpenShift SDNs with a Network Tunnel,
• EventFlow: Event-driven microservices on OpenShift (Part 1),
• Deploying MicroProfile apps on Microsoft Azure using the Azure Open Service Broker,
• Istio on OpenShift: Technology Preview 2 of Service Mesh Now Available,
• Knative: Building your Serverless Service,
• Modern web applications on OpenShift: Part 2 — Using chained builds,
• Running Your Own Database-as-a-Service with the Crunchy PostgreSQL Operator,
• Announcing: Thorntail 2.2 General Availability,

Containers:

Miscellaneous:

• Identity Management and Load Balancing in Red Hat Enterprise Linux,
• The history and future of OpenJDK,
• Going full deterministic using real-time in OpenStack,
• Troubleshooting packet drop with NFV DPDK,
• Edit your videos with Pitivi on Fedora,
• Red Hat and NVIDIA: Positioning Red Hat Enterprise Linux and OpenShift as primary platforms for artificial intelligence and other GPU-accelerated workloads,
• Introduction to Linux interfaces for virtual networking.

Containers:

• Replacing Docker with Podman (48min) (with Podman, Systemd runs in the container with PID 1 with no modifications, sd_notify and socket activation work),
• CRI-O: All the Runtime Kubernetes need (31min),
• Container Runtimes: draw some lines (25min),
• SELinux blocks podman container from talking to libvirt,
• Why can’t I delete storage files created by non-root Podman?
• OpenStack Containerization with Podman – Part 1 (Undercloud),
• OpenStack Containerization with Podman – Part 2 (SystemD),
• OpenStack Containerization with Podman – Part 3 (Upgrades),
• Buildah version 1.4 Release Announcement,
• Buildah Blocks: ONBUILD in Buildah,
• Adding checkpoint/restore support to Podman,

Kubernetes:

• Are App Servers Dead in the Age of Kubernetes? (Part 2),

OpenShift:

• OpenShift Container Platform Monitoring managed with Infrastructure-as-Code (IaC),
• Modern Web Applications on OpenShift: Part 1 – Web apps in two commands,
• OpenShift – Installing the CLI for Windows (3min),
• OpenShift – Installing the CLI for Mac (3min),
• OpenShift – Installing the CLI for Linux (3min),
• Knative: Serving your Serverless Services,
• Red Hat Container Development Kit 3.6 now available,
• Generally Available today: Red Hat OpenShift Container Platform 3.11 is ready to power enterprise Kubernetes deployments,
• How to deploy multiple versions of an API using paths on OpenShift,

Identity:

• Identity Management for Systems in a DMZ,
• Using Red Hat Identity Management as a Domain Controller for systems in a DMZ,

Ansible:

• Ansible 2.7 released,
• Reboot plugin for Linux in Ansible 2.7,
• Take Ansible and Jenkins Integration to the next level: CI/CD with Ansible Tower,

Satellite 6:

• Red Hat announces Satellite 6.4,
• Satellite 6: Defining the Satellite 6 Architecture (4min),
• Satellite 6: Installation and Configuration (8min),
• Satellite 6: Synchronizing Content (7min),
• Satellite 6: Creating an Application Lifecycle (12min),
• Creating a Satellite 6 Manifest (4min),
• LDAP Authentication in Satellite 6 (40min),
• Red Hat Satellite Technical Overview (RH053): Course Overview (2min),
• Red Hat Satellite Technical Overview (RH053): Introduction to Red Hat Satellite (6min),
• Patching and Software Management using Red Hat Satellite (and demonstration) (14min),
• Subscription Management using Red Hat Satellite (and demonstration) (6min),
• Provisioning using Red Hat Satellite (and demonstration) (10min),
• Configuration Management using Red Hat Satellite (and demonstration) (5min),
• Integrating Red Hat Satellite with Ansible and Insights (and demonstration) (6min),

Miscellaneous:

• What’s new in Systemd in 2018 (26min),
• Portable Services are Ready to Use (42min),
• CentOS Pulse Newsletter, October 2018 (#1805),
• Patterns for distributed transactions within a microservices architecture,
• Stratis 1.0 released!
• What you need to know about the first-ever DNSSEC root key rollover on October 11, 2018,
• Red Hat Enterprise Linux 7 – Active Directory Integration (3min),
• Creating a Local Repository and Sharing With Offline Systems (8min),
• Updated CentOS Vagrant Images Available (v1809.01),
• Revamp CentOS Community Container Pipeline to run on OpenShift,
• Upcoming changes to downloading AltArch .iso images,
• Configuring NGINX for OAuth/OpenID Connect SSO with Keycloak/Red Hat SSO,
• Integrating third-party identity providers with Red Hat 3scale API Management,
• Red Hat Virtualization: Supporting multiple NVIDIA virtual GPU workflows in virtualized environment.

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.