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Interacting directly with the AWS APIs—using a tool like Postman (or, since I switched back to macOS, an application named Paw)—is something I’ve been doing off and on for a little while as a way of gaining a slightly deeper understanding of the APIs that tools like Terraform, Pulumi, and others are calling when automating AWS. For a while, I struggled with AWS authentication, and after seeing Mark Brookfield’s post on using Postman to authenticate to AWS I thought it might be helpful to share what I learned as well.
The basis of Mark’s post (I highly encourage you to go read it) is that he was having a hard time getting authenticated to AWS in order to automate the creation of some Route 53 DNS records. The root of his issue, as it turns out, was a mismatch between the region specified in his request and the API endpoint for Route 53. I know this because I ran into the exact same issue (although with a different service).
The secret to uncovering this mismatch can be found in this “AWS General Reference” PDF. Specifically with regard to Route 53, check out this quote from the document:
Or why you should stop travelling for a while
The post My Personal Notes on Corona Virus (COVID-19) And Travelling appeared first on EtherealMind.
We are using AMD 2nd Gen EPYC 7642 for our tenth generation “Gen X” servers. We found many aspects of this processor compelling such as its increase in performance due to its frequency bump and cache-to-core ratio. We have partnered with AMD to get the best performance out of this processor and today, we are highlighting our tuning efforts that led to an additional 6% performance.
Thermal design power (TDP) and dynamic power, amongst others, play a critical role when tuning a system. Many share a common belief that thermal design power is the maximum or average power drawn by the processor. The 48-core AMD EPYC 7642 has a TDP rating of 225W which is just as high as the 64-core AMD EPYC 7742. It comes to mind that fewer cores should translate into lower power consumption, so why is the AMD EPYC 7642 expected to draw just as much power as the AMD EPYC 7742?
Let’s take a step back and understand that TDP does not always mean the maximum or average power that the processor will draw. At a glance, Continue reading
For the past few years we’ve held a conference specifically for contributors at the same time as AnsibleFest. The additional days brought together existing contributors to the open source Ansible code base and those wanting to get involved.
It is with great pleasure that we announce a European Contributor Summit will be held in Gothenburg, Sweden, ahead of the usual summit at AnsibleFest! On March 29 we’ll be welcoming new and old contributors alike. So if you already contribute to Ansible, or would like to, but don’t know how or where to start, this event is for you.
Contributor Summit US will again be held the day before this year’s AnsibleFest event in San Diego. You can sign up for AnsibleFest updates here.
Ansible Contributor Summit is a day-long working session with the core developer team and key contributors. We’ll discuss important issues affecting the Ansible community, and you can take part in person or online. Information for remote participation will be announced about a week beforehand. There is an additional hackathon the following day, on March 30, where you can sit down with fellow contributors to work through anything specific.
The event is free to attend, although registration is Continue reading
Starting with a short message to anyone interested in our on-site events in Switzerland: on March 10th we’re running our first 2020 workshop, focusing on Docker and containers.
I totally reworked the material, adding tons of new Docker networking examples (including deep dive into iptables) and a few fun things like building an Ansible container, or starting the whole NetBox stack with a single command. Even if you don’t plan to deploy containers in your production network, you might drop by just for that part.
And now for the upcoming webinars:
Starting with a short message to anyone interested in our on-site events in Switzerland: on March 10th we’re running our first 2020 workshop, focusing on Docker and containers.
I totally reworked the material, adding tons of new Docker networking examples (including deep dive into iptables) and a few fun things like building an Ansible container, or starting the whole NetBox stack with a single command. Even if you don’t plan to deploy containers in your production network, you might drop by just for that part.
And now for the upcoming webinars:
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