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Programming/Container: Sysdig Report, CNCF, SaaS and Qt Software Development Kit (Qt SDK)

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  • 4 container usage takeaways from the 2019 Sysdig report

    You probably already knew that most of the containers created by developers are disposable, but did you realize that half of them are only around for less than five minutes? That and other fascinating details are available in the latest annual container report from Sysdig, a container security and orchestration vendor.

    This is the company’s third such report. The results are obtained from their own instrumentation collected from a five-day period last month of the more than 2 million containers used by their own customers. This means the results could be somewhat skewed toward more experienced container developers.

    Nevertheless, the report merits some scrutiny. Here are four important takeaways.

  • CNCF Adopts Longhorn Storage Project from Rancher Labs

    Based on 30,000 lines of Go code employed to create separate engine and management plane, Longhorn is significantly lighter than traditional storage software because it builds on existing Linux storage primitives, Liang says. It also doesn’t require a dedicated storage administrator to deploy and manage. It’s designed from the ground up to be used by the same team managing the Kubernetes cluster, he notes, adding modern storage hardware such as solid-state drives (SSDs) and NVMe backplanes made it easier to build Longhorn without compromising performance.

    While some applications might want to access block storage directly, Liang says Rancher Labs expects most organizations will layer a file system on top of Longhorn to access various forms of persistent storage.

  • Lessons From A Failed SaaS - Building SaaS #37

    In this episode, we talked about the things I learned from my SaaS project and some of the reasons why it failed to succeed financially. We dug into the technical and marketing challenges that I faced and what went wrong.

    I’m shutting down my side project, College Conductor. The SaaS never achieved a sustainable level of success. I started the site to help my wife with her college consulting business. As you can see from what follows, the site didn’t mange to deliver what she (or anyone else) really needed.

  • Setup Complete Qt SDK on Ubuntu Eoan Ermine

    Qt Software Development Kit (Qt SDK) includes Qt Creator IDE & Qt Framework Libraries with Full Code Examples among other things. On Ubuntu 19.10, if you want to develop GUI applications with Qt, you need to install that Qt SDK first with a C++ compiler. Installing it on 19.10 is slightly different to different to 18.04 as this involves configuring GNU GCC C++ compiler on 19.10. After setup, you will have a ready, complete Qt SDK with Creator, Designer, Linguist, and Assistant works with G++ compiler. I hope this will be useful for you all. Happy hacking!

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