The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘Cloud’ Category

“A Journey to OCP”, Open Compute Meetup in Amsterdam – YouTube

Posted by jpluimers on 2018/05/14

Well worth watching: “A Journey to OCP”, Open Compute Meetup in Amsterdam – YouTube

Keywords: Open Compute Platform, Booking, Kohntopp

Related: [WayBack] To France… – The Isoblog.

 

–jeroen

Posted in Cloud, Infrastructure | Leave a Comment »

Limits on Everything – The Isoblog.

Posted by jpluimers on 2018/05/01

Via [WayBackLimits on Everything – The Isoblog.:

A posting at Brave New Geek about limits on everything, for example limits on message sizes and numbers of in-flight messages in message queues. Interesting read.

Very interesting read indeed: [WayBackTake It to the Limit: Considerations for Building Reliable Systems – Brave New Geek

You have to set limits, which begs for a few questions:

  1. how to find out which limits and at what levels
  2. how to enforce these limits

Food for thought…

The first can be done with benchmarking, see for instance these from the same blogs above:

Enforcing limits depends in your infrastructure and your communication stacks.

–jeroen

Posted in Cloud, Development, Infrastructure, Opinions, Software Development | Leave a Comment »

Home – Outpan – GTIN to product attribute mapping

Posted by jpluimers on 2018/04/26

On my research list: Home – Outpan as it is a key-value store of EAN (actually GTIN, so including GS1 UPC, EAN which means barcodes like UPC-12, EAN-8, EAN-13 and ITF-14).

  • [WayBackGlobal Trade Item Number – Wikipedia
  • [WayBackAPI Documentation – Outpan Developers

    Legacy API

    Get Product Information

    GET https://api.outpan.com/v2/products/[GTIN]?apikey=[YOUR API KEY]


    Add Product Name

    POST https://api.outpan.com/v2/products/[GTIN]/name?apikey=[YOUR API KEY]

    Required POST parameters:

    name: The name you would like to add for this product.


    Add Product Attribute

    POST https://api.outpan.com/v2/products/[GTIN]/attribute?apikey=[YOUR API KEY]

    Required POST parameters:

    name: Name of the attribute you would like to add for this product.

    value: Value for the attribute you would like to add for this product.


    • [GTIN] is the barcode number (ISBN, EAN, UPC, …) of the product you’re looking up.
    • All API calls must be done via HTTPS. Plain HTTP calls will be rejected.

–jeroen

via [WayBack[How To] Scan a barcode and add the product name to Wunderlist : tasker

 

Posted in Barcode, Cloud, Cloud Apps, Cloud Development, Development, EAN, Infrastructure, Internet, Power User, Software Development | Leave a Comment »

From the #AllesIstKaput department: DNS 1.1.1.1 is unusable for many; 9.9.9.9 has government affiliation

Posted by jpluimers on 2018/04/04

Abstract from this morning’s Twitter feed:

  • 1.1.1.1 [Wayback] DNS is broken in many areas (because of for instance AT&T, Vodafone, Cisco screwing up and 1.1.1.1 historically being marked for research purposes)
  • 9.9.9.9 [Wayback] DNS has government affiliation (owned by Quad9, but the partner list below does not look nice)

So what’s left?

There are a more interesting IPv4 addresses untaken for DNS, but I’m not sure they are likable enough:

Read the rest of this entry »

Posted in Cloud, Cloudflare, DNS, Infrastructure, Internet, LifeHacker, Power User | Tagged: , , , , | Leave a Comment »

Sometimes clouds vaporise: the Docker Cloud shuts down in ~8 weeks.

Posted by jpluimers on 2018/03/26

From [WayBackDocker – Docker Cloud Migration Notification and FAQs:

The services on Docker Cloud that provide application, node, and swarm cluster management will be shutting down on May 21.

If you do not migrate by May 21, your applications running on the Docker node cluster management service will cease to operate.

Swarms will continue to function; however, if you do not retrieve your SSH keys for the Swarms being managed by our swarm cluster management service, you will be unable to access your swarms using your Docker ID. For instructions on how to retrieve and access your Swarms with SSH keys, please refer to the Docker docs.

So soon, no more [WayBack] Docker Cloud – Build, Ship and Run any App, Anywhere.

Remember: still the cloud is other peoples computers, so be sure you can move when needed.

–jeroen

Posted in Cloud, Cloud Development, Containers, Development, Docker, Infrastructure, Power User | Leave a Comment »

EmbarcaderoMonitoring – monitoring the Embarcadero internet related services

Posted by jpluimers on 2018/03/15

Over time, there are lots of complaints about Embarcadero related internet services (like forums, QC, Appanalytics, docwiki, blogsweb site, maintenance) so to track uptime, I’ve created a set of EmbarcaderoMonitoring pages:

This is preliminary work based on my own lists of Embarcadero endpoints combined with some research like [WayBack] dnsdumpster embarcadero.com.png and [WayBack] IdentIPSpy

Underneath, they run on the uptimerobot.com infrastructure which has a limit of 50 free monitors.

It means I have to:

  • trim this down for relevancy
  • better document the endpoint
  • find correct endpoint targets for the black (disabled) and red (down) entries as a few of them might need tweaking
  • maybe split off an insecure and secure version (now most subdomains have both http and https monitored)

Any ideas on improving this are welcome: please post a comment here on on the resulting G+ thread.

Note it likely won’t show cases like when the website was hacked or TLS certificate issues like in SSLLabs security reports for some embarcadero subdomains. I need to think about a means for those, as it will certainly help monitoring my own infrastructure in a similar way.

–jeroen

Read the rest of this entry »

Posted in *nix, Cloud, Development, DevOps, Infrastructure, Monitoring, Power User, Software Development, Uptimerobot | Leave a Comment »

Scott Hanselman on Witter: “Why should I care about Kubernetes, Docker, and Container Orchestration?”

Posted by jpluimers on 2018/02/08

An important question for many people, so if you want to know more or get started: [WayBack] Scott Hanselman on Twitter: “Why should I care about Kubernetes, Docker, and Container Orchestration?” followed by:

Yes, AKS is Azure Container Services (go figure!).

Notes

  • For burning, Scott recommends [WayBack] Etcher: Burn images to SD cards & USB drives, safely and easily (which is now also available as experimental [WayBackEtcher CLI), I tended to use a script like below since I’m a command-line person, but since Etcher does write and verify in one run, I’m considering switching:
    1. find where the SD card is mounted on your Mac: diskutil list
    2. sudo su -
    3. execute this from the directory where you downloaded filling in targetDevice with the value from diskutil list

    targetDevice="disk9"
    imageName="2017-11-29-raspbian-stretch-lite"
    unzip -o ${imageName}.zip
    diskutil umount "/dev/${targetDevice}s1"; \
    dd bs=1m of="/dev/r${targetDevice}" if=${imageName}; \
    sync; \
    diskutil list; \
    diskutil eject "/dev/${targetDevice}"

–jeroen

Posted in Cloud, Containers, Docker, Infrastructure, Kubernetes (k8n), Power User | Leave a Comment »

What happens when a huge number of people share a single grocery store loyalty card? – The Old New Thing

Posted by jpluimers on 2018/01/12

[WayBack] What happens when a huge number of people share a single grocery store loyalty card? – The Old New Thing

An interesting discussion in the comments besides this interesting article observation:

What messes up their data analysis is when two people with different lifestyles swap cards. The system sees that somebody who used to buy yogurt and bulk brewer’s yeast is now buying potato chips and frozen pizzas, and it can’t figure out what is going on.

–jeroen

Posted in Cloud, Development, Fun, Infrastructure, LifeHacker, Software Development, The Old New Thing, Windows Development | Leave a Comment »

jessie frazelle on Twitter: “Hire the people who will automate themselves out of a job, then just keep giving them jobs.”

Posted by jpluimers on 2017/12/31

This is what DevOps is all about: [WayBackjessie frazelle on Twitter: “Hire the people who will automate themselves out of a job, then just keep giving them jobs.”

I had seen the tweet before, but forgot to save it. Jonas Bandi reminded me of it at [WayBackWeekend Reader: End of Year Edition – reality-loop.

Jessie is doing great work. For instance, she developed and published contained.af, and nobody captured the flag yet: [WayBack] jessie frazelle on Twitter: «A year ago I made contained.af and it’s launched over 128,000 containers & no one has retrieved the flag».

The game runs in a container, gives you console access and has a bunch of questions. Still need to dig deeper in it, as it is a fascinating set-up. If you like to try it:

Wishing you a year where nobody captures your flags (:

–jeroen

via [WayBack] I just published my “Weekend Reader: End of Year Edition” – Jonas Bandi – Google+

Read the rest of this entry »

Posted in Agile, Cloud, Containers, Development, DevOps, Docker, Infrastructure, Kubernetes (k8n), LifeHacker, Power User, Software Development | Leave a Comment »

On the Docker-Kubernetes announcement: if Kubernetes does so much, do you still use Docker?

Posted by jpluimers on 2017/12/03

Must read: [WayBack] Some Thoughts on the Docker-Kubernetes Announcement – Scott’s Weblog – The weblog of an IT pro specializing in cloud computing, virtualization, and networking, all with an open source view

Via a thread with great comments: [WayBack] Two weeks ago, Scott Lowe mused about the Docker-Kubernetes announcement. https://blog.scottlowe.org/2017/10/17/some-thoughts-on-docker-kubernetes-anno… – Kristian Köhntopp – Google+

–jeroen

Posted in Cloud, Containers, Docker, Infrastructure, Kubernetes (k8n) | Leave a Comment »