Adding integration tests to Ansible Content Collections

In the previous installment of our "let us create the best Ansible Content Collection ever" saga, we covered the DigitalOcean-related content migration process. What we ended up with was a fully functioning Ansible Content Collection that unfortunately had no tests. But not for long; we will be adding an integration test for the droplet module.

We do not need tests, right?

If we were able to write perfect code all of the time, there would be no need for tests. But unfortunately, this is not how things work in real life. Any modestly useful software has deadlines attached, which usually means that developers need to strike a compromise between polish and delivery speed.

For us, the Ansible Content Collections authors, having a semi-decent Collection of integration tests has two main benefits:

We know that the tested code paths function as expected and produce desired results.
We can catch the breaking changes in the upstream product that we are trying to automate.

The second point is especially crucial in the Ansible world, where one team of developers is usually responsible for the upstream product, and a separate group maintains Ansible content.

With the "why integration tests" behind us, we can Continue reading

BGP Navel Gazing on Software Gone Wild

This podcast introduction was written by Nick Buraglio, the host of today’s podcast.

As we all know, BGP runs the networked world. It is a protocol that has existed and operated in the vast expanse of the internet in one form or another since early 1990s, and despite the fact that it has been extended, enhanced, twisted, and warped into performing a myriad of tasks that one would never have imagined in the silver era of internetworking, it has remained largely unchanged in its operational core.

The world as we know it would never exist without BGP, and because of the fact that it is such a widely deployed protocol with such a solid track record of “just working”, the transition to a better security model surrounding it has been extraordinarily slow to modernize.

Accelerated Databases In The Fast Lane

Hardware accelerated databases are not new things. More than twenty years ago, Netezza was founded and created a hybrid hardware architecture that ran PostgreSQL on a big, wonking NUMA server running Linux and accelerated certain functions with adjunct accelerators that were themselves hybrid CPU-FPGA server blades that also stored the data. …

Accelerated Databases In The Fast Lane was written by Timothy Prickett Morgan at The Next Platform.

What is Data Center Interconnect vs. Data Center Unification?

In this blog, we review data center interconnect (DCI), and how to build on DCI connectivity to unify multi-site data centers. Learn more.

Amateur packet radio walkthrough

An earlier version of this post that did data over D-Star was misleading. This is the new version.

This blog post aims do describe the steps to setting up packet radio on modern hardware with Linux. There’s lots of ham radio documentation out there about various setups, but they’re usually at least 20 years old, and you’ll find recommendations to use software that’s not been updated is just as long.

Specifically here I’ll set up a Kenwood TH-D74 and ICom 9700 to talk to each other over D-Star and AX.25. But for the latter you can also use use cheap Baofengs just as well.

Note that 9600bps AX.25 can only be generated by a compatible radio. 1200bps can be send to a non-supporting radio as audio, but 9600bps cannot. So both D-Star and AX.25 here will give only 1200bps. But with hundreds of watts you can get really far with it, at least.

I’ll assume that you already know how to set up APRS (and therefore KISS) on a D74. If not, get comfortable with that first by reading the manual.

DMR doesn’t seem to have a data mode, and SystemFusion radios don’t give the user access Continue reading

Next Platform TV for Wednesday, June 24

On today’s show we talk to Dr. Jack Dongarra, co-founder of the Top 500 supercomputer list and creator of several companion benchmarks, including HPCG. …

Next Platform TV for Wednesday, June 24 was written by Nicole Hemsoth at The Next Platform.

Ripple20 TCP/IP flaws can be patched but still threaten IoT devices

A set of serious network security vulnerabilities collectively known as Ripple20 roiled the IoT landscape when they came to light last week, and the problems they pose for IoT-equipped businesses could be both dangerous and difficult to solve.Ripple20 was originally discovered by Israel-based security company JSOF in September 2019. It affects a lightweight, proprietary TCP/IP library created by a small company in Ohio called Treck, which has issued a patch for the vulnerabilities. Several of those vulnerabilities would allow for remote-code execution, allowing for data theft, malicious takeovers and more, said the security vendor.That, however, isn’t the end of the problem. The TCP/IP library that contains the vulnerabilities has been used in a huge range of connected devices, from medical devices to industrial control systems to printers, and actually delivering and applying the patch is a vast undertaking. JSOF said that “hundreds of millions” of devices could be affected. Many devices don’t have the capacity to receive remote patches, and Terry Dunlap, co-founder of security vendor ReFirm Labs, said that there are numerous hurdles to getting patches onto older equipment in particular.To read this article in full, please click here

The Hedge Episode 41: Centralized Architectures with Jari Arkko

Consolidation is a well-recognized trend in the Internet ecosystem—but what does this centralization mean in terms of distributed systems, such as the DNS? Jari Arkko joins this episode of the Hedge, along with Alvaro Retana, to discuss the import and impact of centralization on the Internet through his draft, draft-arkko-arch-infrastructure-centralisation.

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Day Two Cloud 054: Real Life VMware Cloud On AWS

We discuss the reality of running VMware Cloud (VMC) on AWS with Adam Fisher, Cloud & DevOps Engineer at RoundTower. Adam's been deploying VMC on AWS in the real world for customers since the product's early days, and has plenty of insights. VMC on AWS presents a VMware software defined data center (SDDC) hosted on bare metal in AWS data centers. If you're trying to vacate your own data centers or colos, but aren't going to refactor your applications to do it, VMC on AWS presents a compelling technical solution.

Day Two Cloud 054: Real Life VMware Cloud On AWS

The post Day Two Cloud 054: Real Life VMware Cloud On AWS appeared first on Packet Pushers.

Getting AWS Availability Zones using Pulumi and Go

I’ve written several different articles on Pulumi (take a look at all articles tagged “Pulumi”), the infrastructure-as-code tool that allows users to define their infrastructure using a general-purpose programming language instead of a domain-specific language (DSL). Thus far, my work with Pulumi has leveraged TypeScript, but moving forward I’m going to start sharing more Pulumi code written using Go. In this post, I’ll share how to use Pulumi and Go to get a list of Availability Zones (AZs) from a particular region in AWS.

Before I proceed, I feel like it is important to provide the disclaimer that I’m new to Go (and therefore still learning). There are probably better ways of doing what I’m doing here, and so I welcome all constructive feedback on how I can improve.

With that disclaimer out of the way, allow me to first provide a small bit of context around this code. When I’m using Pulumi to manage infrastructure on AWS, I like to try to keep things as region-independent as possible. Therefore, I try to avoid hard-coding things like the number of AZs or the AZ names, and prefer to gather that information dynamically—which is what this code does.

Here’s the Continue reading

BiB094 – HPE Discover Greenlake and Ezmeral

HPE Greenlake Common cloud platform – pivot to “edge-to-cloud platform-as-a-service company” cloud services, software and customer experiences. Greenlake in numbers: 4B in contract value , 1000 customers, 50 countries, 90% retention rate 700 partners selling Greenlake = next generational partner ecosystem self-served, pay per use HPE Ezmeral The HPE Ezmeral... Read more »

BiB094 – HPE Discover Greenlake and Ezmeral

The post BiB094 – HPE Discover Greenlake and Ezmeral appeared first on Packet Pushers.

Eighty for Africa: Kenya and Nigeria’s IXP Success

Ten years ago the peering community came up with a vision: We wanted 80 percent of Internet traffic to be localized by 2020. I must admit, over the last decade there were times I wondered if it was possible.

But Kenya and Nigeria have just proven that it is – all thanks to the help of Internet exchange points (IXPs). A new report, Anchoring the African Internet Ecosystem: Lessons from Kenya and Nigeria’s Internet Exchange Points Growth is a case study on how they did it.

What Changed in Kenya and Nigeria

In just eight years a dedicated community helped Kenya and Nigeria to boost the levels of Internet traffic that is locally exchanged from 30% to 70%.

That happened because of a vibrant community of people united around a common cause: bringing faster, cheaper, and better Internet to their neighbours. They did this by focusing on their local Internet ecosystem that is dependent on the IXP.

Building an IXP takes humans and tech. We often say it takes 80% human engineering and 20% network engineering. It certainly is no easy task. Building a strong local Internet community facilitates this collaboration and results in neutral, even, and good local governance Continue reading

Adapting Network Design to Support Automation

This blog post was initially sent to the subscribers of my SDN and Network Automation mailing list. Subscribe here.

Adam left a thoughtful comment addressing numerous interesting aspects of network design in the era of booming automation hype on my How Should Network Architects Deal with Network Automation blog post. He started with:

A question I keep tasking myself with addressing but never finding the best answer, is how appropriate is it to reform a network environment into a flattened design such as spine-and-leaf, if that reform is with the sole intent and purpose to enable automation?

A few basic facts first:

Ampere Reveals “Quicksilver” Altra Lineup, 128-Core “Mystique” Kicker

There are two Amperes in datacenter compute right now, and they are both gunning for Xeons. …

Ampere Reveals “Quicksilver” Altra Lineup, 128-Core “Mystique” Kicker was written by Timothy Prickett Morgan at The Next Platform.

HPE Builds Out GreenLake Utility, Creates Ezmeral Software

Hewlett Packard Enterprise in January created its Transformation Office with an eye toward accelerating its move to become a platform provider – complete with hardware, software, services and other components – with a reach from the datacenter out through the cloud and to the fast-growing edge computing environment. …

HPE Builds Out GreenLake Utility, Creates Ezmeral Software was written by Jeffrey Burt at The Next Platform.

The 10 fastest supercomputers are led by one 2.8x faster than the rest

The newly crowned fastest supercomputer in the world according to the current TOP500 list of the world’s fastest buried the reigning champion by turning in speeds that were 2.8 times faster.To read this article in full, please click here(Insider Story)

Open Call To The Next Generation of Internet Leaders – Apply for the IGF Youth Ambassadors Program

We are living in unprecedented times. COVID-19 has disrupted our world and it’s a crucial time for the Internet. We are facing issues related to misinformation, online education and connectivity. Challenges have been posed to encryption. Debates around the trade-off between privacy and contact tracing apps take place around the globe.

The acceleration of digital transformation worldwide has created immense opportunities and at the same time, uncertainty and challenges. Under these circumstances, youth must be represented in these discussions.

Young people know the benefits of connection, sharing and openness. Young engineers and programmers create new tools for the Internet every day, and many proposals about governance of new technologies come from interested people below the age of 30.

We grew up in cyberspace, and it has become an intrinsic part of many of our lives. We care for it, we value its principles, invariants and characteristics. Most of all, we understand how important the Internet is and how much of a force for good (or for evil) it can be.

The voice of youth matters and the Internet Society plays a significant role to empower the next generation of Internet leaders and to provide them with the freedom to voice Continue reading

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