Previously I did a post on Securing AMQ7 Routers with SSL. This post will expand upon that and explain how to secure JBoss AMQ7 Brokers with SSL and how to connect the routers and brokers with SSL as well.
Continue reading “Securing AMQ7 Brokers with SSL (part 2)”
SystemTap 3.2 includes an early prototype of SystemTap’s new BPF backend (stapbpf). It represents a first step towards leveraging powerful new tracing and performance analysis capabilities recently added to the Linux kernel. In this post, I will compare the translation process of stapbpf with the default backend (stap) and compare some differences in functionality between these two backends.
Continue reading “Introducing stapbpf – SystemTap’s new BPF backend”
Kotlin coroutines is one of the major features of Eclipse Vert.x 3.5.
Most of us are used to writing interactive code and going the reactive way is not a trivial paradigm shift for everyone: programming using asynchronous APIs can be more challenging than using a direct synchronous style, in particular, if you have several operations that you want to do in sequence. Also, error propagation is often more complex when using asynchronous APIs.
Continue reading “Inter-Reactive Kotlin Applications”
Recently I’ve received a question from a customer who would like to restrict user permission in OpenShift Container Platform in order to be compliant with his company’s security policies.
OpenShift has rich and fine-grained RBAC capabilities out of the box, which gives you the possibility to setup exactly who can do actions (verbs in OpenShift word) on every kind of resource.
Before we begin to dive deep into this topic, I have provided links to some resources I think will be of use to help better understand the concepts of roles, roles scope, RoleBinding, groups, etc.
Continue reading “How to customize OpenShift RBAC permissions”
Open vSwitch is growing every day and being used in large-scale deployments. Usually, that means there are few ports configured in the vswitch that will be always available, like physical Ethernet ports and several other ports providing networking connectivity to virtual machines or containers. Those other ports are software devices and very often they cannot be reused after a reboot or a system crash for example.
This blog post will talk about how to make sure the vSwitch comes up clean after a system crash or bad shutdown. The idea is that once vSwitch is up, there is no need for another component (usually a remote controller) to iterate over a large number of stale ports and clean them up.
Continue reading “Open vSwitch without stale ports”
Container Native Storage (CNS) is implemented in OpenShift as pods. These pods are created from a template that is built into OpenShift. After an automated install, we want to make sure we have the latest template, and the latest containers when using the Advanced Installer. While typically this is a multi-step manual process, an Ansible Script makes this a lot simpler.
Continue reading “Example of using Ansible to update Container Native Storage”
Before I start talking about IT and how you can manage, control, and optimize your Hybrid IT infrastructure, I propose that we reflect directly on your living room, where you usually watch TV, movies, listen to music, play video games, etc. Even if you do not enjoy this type of entertainment, you know that for each of these devices, it is common to use a remote control allowing you to switch between them, manage them, and control all of your favorite programming. While these devices are converging to an all-in-one architecture, they are truly multi-functional. We’ve learned how to handle remote controls at a very young age and it’s the reality we live in. In this case, you are faced with heterogeneous devices and various remote controls, where the number of controls increases as you acquire new devices. It is difficult to have to manage the complexity of a simple task that is to manage your schedule, operating multiple devices, through different controls, with numerous features, and different vendors. Products and vendors bring specific features, use different nomenclature, and provide some features which may or may not be compatible with each other. Going beyond, some of these features made available by vendors, will not even be used throughout the lifetime of these devices, a real waste!
Picture 1 – Managing many devices with many remote controls
Considering this scenario, you might be wondering: What is the relationship of the complexity of having to deal with various entertainment devices and remote controls with your IT infrastructure? And what does this have to do with cloud computing or Hybrid IT?
Continue reading “CloudForms: Manage your IT and Hybrid Cloud through a single platform”
Inviting all hackers, tinkerers, and builders to take part in the Open IoT Challenge 4.0.
Continue reading “Open IoT Challenge – CFP deadline next week”
Fuse Online Tech-Preview is available TODAY! This is great news to my integration developer friends, check out the new Red Hat Fuse Online integration platform. Fuse Online is easy to use and low code platform for system integrators. System integrator now plays a very important role in the Enterprise IT, because they have the ability to interconnect with partner, vendors, and internal systems. Companies now need to deal with the increasing number of APIs/digital touch points that need to weave together. And the time they were given for them to integrate has just gotten shorter! Red Hat Fuse online is just the right tool for this.
Continue reading “More work done with less code – Fuse Online Tech-Preview TODAY”