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Ampere Altra 80-core Arm Server for GNU/Linux (and Cautionary Tale About DRM-Like Servers)

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GNU
Linux
Server

Cockpit 253

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Server
Software

SELinux alerts can now be selected and dismissed in bulk, which is simpler than having to expand and dismiss them individualy. Having a clean alert state is especially helpful when building policies, as newer alerts become more obvious.

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Server: K3s, Livepatch, and Kubernetes

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Server
  • Advancing the Tactical Edge with K3s and SUSE RGS [Ed: Who at SUSE thought Booz Allen Hamilton was good for marketing?]

    An early adopter of open source, it was not until 2018 that the team at Booz Allen identified K3s as the right solution, due to its small footprint and lightweight distribution. Their relationship with the Rancher Federal team (now SUSE RGS) was a natural next step, and Booz Allen deployed K3s, defining a new era in military tactics at the edge.

  • Fostering Innovation with a Kubernetes Platform | SUSE Communities

    Hybrid and multi-cloud are now the established order in the tech world. According to SUSE’s recently commissioned Insight Avenue report, Why Today’s IT Leaders are Choosing Open, more than 800 IT leaders believe the biggest benefits of a hybrid and multi-cloud approach are cost-effectiveness (45%), increased flexibility and agility (44%), and being able to take advantage of best-of-breed solutions (35%).

  • Managing Livepatch on-prem

    Ubuntu Livepatch is the service and the software that enables organizations to quickly patch vulnerabilities on the Linux kernel. It enables uninterrupted service while reducing fire drills during high and critical severity kernel vulnerabilities. With Ubuntu Livepatch on-prem we enhance our service to enable enterprises manage on private or public cloud their livepatched systems.

    In this post, we will introduce Ubuntu Livepatch on-prem and look into how it can be deployed for your organization, as well as answer some of the most commonly asked questions.

  • Blog: Introducing Single Pod Access Mode for PersistentVolumes

    Last month's release of Kubernetes v1.22 introduced a new ReadWriteOncePod access mode for PersistentVolumes and PersistentVolumeClaims. With this alpha feature, Kubernetes allows you to restrict volume access to a single pod in the cluster.

Best 18 Open-source Flat-File CMSs in 2021

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Server
Web

A Flat-file CMS is a content management system that does not use any database, in other term "Databaseless". It stores its content in text files like: Markdown, TXT, JSON or even XML.

In this article, we listed a neat collection of Flat-file publishing systems which serve many purposes starting from blogging, documentation projects to enterprise websites.

I have always been fascinated by databaseless solutions, which I tend to use and recommend to my clients, and flat-file CMSs are not an exception.

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PostgreSQL News and Releases

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Server
  • PostgreSQL: PostgreSQL Weekly News - September 5, 2021

    pg_dbms_job 1.1.0, an extension to create, manage and use Oracle-style DBMS_JOB scheduled jobs, released.

    dbForge Data Compare for PostgreSQL v3.4 released

    pgmoneta 0.5.0, a backup and restore system for PostgreSQL, released

    pgspider_ext, an extension to create a cluster engine for distributed data based on PostgreSQL foreign data wrappers, released.

    psycopg2 3.0.0 beta 1, a Python connector for PostgreSQL, released.

    postgresql-wheel, a Python package containing an entire compiled PostgreSQL server in a single pip installable file, released

  • dbForge Data Compare for PostgreSQL Enhanced with New Connectivity Opportunities

    Devart, one of the leading developers of database management software, ALM solutions, and data providers for the most popular database servers, announced an update of dbForge Data Compare for PostgreSQL, a GUI tool for data comparison and synchronization.

  • pgBadger v11.6 released

    pgBadger is a PostgreSQL performance analyzer, built for speed with fully detailed reports based on your PostgreSQL log files.

4 Linux technologies fundamental to containers

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Linux
Server

In previous articles, I have written about container images and runtimes. In this article, I look at how containers are made possible by a foundation of some special Linux technologies, including namespaces and control groups.

Linux technologies make up the foundations of building and running a container process on your system. Technologies include...

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Cockpit Project: Cockpit 252

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Red Hat
Server
Software

Cockpit is the modern Linux admin interface. We release regularly.

Here are the release notes from Cockpit 252:

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PostgreSQL News and Tools

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Server
Software
  • PostgreSQL: Install a local, non-root PostgreSQL Server with Python "pip"

    I'd like to announce the first release of postgresql-wheel, a Python package containing an entire compiled PostgreSQL server in a single pip installable file.

  • PostgreSQL: Psycopg 3.0 beta 1 released!

    We are immensely proud to release on PyPI the first beta package of Psycopg 3!

    Psycopg 3 is a complete rewrite of Psycopg 2, maintaining the same fundamental libpq wrapper architecture and DB-API interface design, but exposing new features to better work with the newer versions of Python and PostgreSQL.

    On the Python side, Psycopg 3 allows the use of asyncio-based concurrency and static typing. Many improvement to the Python interface make the library much simpler and more idiomatic to use,

    On the PostgreSQL side, Psycopg 3 makes use of server-side parameters, prepared statements, binary parameters, and great support for COPY operations.

    But the most outstanding feature of the project is not a technical one: Psycopg 3 was made possible by the great generosity of many sponsors, who have funded the development of the project. Among the many backers, we are especially grateful to Postgres Professional and Command Prompt, Inc, which have given the most outstanding support. But many other companies and individuals, each one in their capacity, have shown concrete support for free software development and progress. We sincerely hope that you will find this work useful and that you will feel proud for having contributed to it.

  • PostgreSQL Weekly News - August 29, 2021

    pg_dbms_job 1.0.1, an extension to create, manage and use Oracle-style DBMS_JOB scheduled jobs, released.

    dbMigration .NET v14.4, a database migration and sync tool, released.

    WAL-G 1.1 a backup management system for PostgreSQL and other databases written in Go, released.

    pglogical 2.4.0, a logical-WAL-based replication system for PostgreSQL, released.

    Crunchy PostgreSQL Operator 5.0.0, a system for deploying and managing open source PostgreSQL clusters on Kubernetes, released.

    set_user 2.0.1, an extension allowing privilege escalation with enhanced logging and control, released

    AGE 0.5.0, a PostgreSQL extension that provides graph database functionality, released

    pg_msvc_generator 1.0.0 beta, a tool for making Windows versions of extensions, released.

  • PostgreSQL: pg_dbms_job v1.1.0 has been released

    pg_dbms_job is a PostgreSQL extension to create, manage and use Oracle-style DBMS_JOB scheduled job. The use and behavior is just like with the DBMS_JOB Oracle package.

    pg_dbms_job v1.1.0 has been released, this is a maintenance release to fix some possible wrong behaviors, give control over other ones and improve the documentation.

Server: PostgreSQL and Kubernetes

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Server
  • PGSpider extention is newly released

    We have just newly released PGSpider extension(pgspider_ext).

    This is an extension to construct High-Performance SQL Cluster Engine for distributed big data.
    PGSpider enables PostgreSQL to access a number of data sources using Foreign Data Wrapper(FDW) and retrieves the distributed data source vertically.

  • pgmoneta 0.5.0

    The pgmoneta community is happy to announce version 0.5.0.

  • Kong Brings API Connectivity Platform to Red Hat OpenShift

    Kong, Inc. revealed it has allied with Red Hat to drive adoption of the Kong Konnect connectivity platform for managing application programming interfaces (APIs) on top of the Red Hat OpenShift platform based on Kubernetes.

    Reza Shafii, vice president of product at Kong Inc., says the company has achieved Red Hat Operator Certification for Kong Konnect on Red Hat OpenShift, which makes its API management platform the first third-party offering to achieve that goal. Kong Konnect will also be made available via the Red Hat Marketplace.

  • Why Kubernetes isn’t just another tech buzzword

    Kubernetes, or K8s, the popular container orchestration platform, has profoundly transformed the way development teams deploy software, and for good reason.

    It’s rapidly becoming the source of truth for many organisations due to its centralised platform structure and has numerous benefits, including increased deployment agility, cost savings and scalability.

  • Kubernetes 1.22: A New Design for Volume Populators

    Kubernetes v1.22, released earlier this month, introduced a redesigned approach for volume populators. Originally implemented in v1.18, the API suffered from backwards compatibility issues. Kubernetes v1.22 includes a new API field called dataSourceRef that fixes these problems.

PostgreSQL DBMS_JOB compatibility and commitfest clog

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Server
  • PostgreSQL DBMS_JOB compatibility extension

    pg_dbms_job is a new PostgreSQL extension to create, manage and use Oracle-style DBMS_JOB scheduled job. The use and behavior is just like with the DBMS_JOB Oracle package.

    pg_dbms_job v1.0.1 has been released, this is the first release of the extension which is compatible from PostgreSQL 9.1 to current.

    It allows to manage scheduled jobs from a job queue or to execute immediately jobs asynchronously. A job definition consist on a code to execute, the next date of execution and how often the job is to be run. A job runs a SQL command, plpgsql code or an existing stored procedure.

    If the submit stored procedure is called without the next_date (when) and interval (how often) attributes, the job is executed immediately in an asynchronous process. If interval is NULL and that next_date is lower or equal to current timestamp the job is also executed immediately as an asynchronous process. In all other cases the job is to be started when appropriate but if interval is NULL the job is executed only once and the job is deleted.

    If a scheduled job completes successfully, then its new execution date is placed in next_date. The new date is calculated by evaluating the SQL expression defined as interval. The interval parameter must evaluate to a time in the future.

  • PostgreSQL's commitfest clog

    While it may seem like the number of developers would be the limiting factor in a free-software project, the truth of the matter is that, for all but the smallest of project, the scarcest resource is reviewer time. Lots of people like to crank out code; rather fewer can find the time to take a close look at somebody else's patches. Free-software projects have taken a number of different approaches to address the review problem; the PostgreSQL developer community is currently struggling with its review load and considering changes to its commitfest process in response.

    Part of the review problem is clerical in nature: patches must be tracked along with their review status. Some projects, like the Linux kernel, take a distributed approach; review status is tracked in the patches themselves and subsystem maintainers are expected to keep up with which patches are ready to be merged. PostgreSQL developers, naturally, prefer to keep that information in a central database. Roughly every other month, outstanding patches are gathered for a month-long commitfest, during which the project makes a decision on the fate of each one of them. Each commitfest has a designated manager who is responsible for ensuring that all patches have been dealt with by the end of the commitfest.

    That is the intended result, anyway. What actually happens, as Simon Riggs recently pointed out on the PostgreSQL Hackers mailing list, is that a lot of patches languish in the queue with no firm decision being made; this can happen as the result of a lack of reviews or a failure of the author to respond, among other reasons. Riggs noted that the 2021-09 commitfest, which is scheduled for September, has 273 patches queued (since increased to 279): "Of those, about 50 items have been waiting more than one year, and about 25 entries waiting for more than two years". The community has been working hard to clear the queue during each commitfest, Riggs said, but still "it's overflowing".

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Programming Leftovers

  • Announcement : An AArch64 (Arm64) Darwin port is planned for GCC12

    As many of you know, Apple has now released an AArch64-based version of macOS and desktop/laptop platforms using the ‘M1’ chip to support it. This is in addition to the existing iOS mobile platforms (but shares some of their constraints). There is considerable interest in the user-base for a GCC port (starting with https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96168) - and, of great kudos to the gfortran team, one of the main drivers is folks using Fortran. Fortunately, I was able to obtain access to one of the DTKs, courtesy of the OSS folks, and using that managed to draft an initial attempt at the port last year (however, nowhere near ready for presentation in GCC11). Nevertheless (as an aside) despite being a prototype, the port is in use with many via hombrew, macports or self-builds - which has shaken out some of the fixable bugs. The work done in the prototype identified three issues that could not be coded around without work on generic parts of the compiler. I am very happy to say that two of our colleagues, Andrew Burgess and Maxim Blinov (both from embecosm) have joined me in drafting a postable version of the port and we are seeking sponsorship to finish this in the GCC12 timeframe. Maxim has a lightning talk on the GNU tools track at LPC (right after the steering committee session) that will focus on the two generic issues that we’re tackling (1 and 2 below). Here is a short summary of the issues and proposed solutions (detailed discussion of any of the parts below would better be in new threads).

  • Apple Silicon / M1 Port Planned For GCC 12 - Phoronix

    Developers are hoping for next year's GCC 12 release they will have Apple AArch64 support on Darwin in place for being able to support Apple Silicon -- initially the M1 SoC -- on macOS with GCC. LLVM/Clang has long been supporting AArch64 on macOS given that Apple leverages LLVM/Clang as part of their official Xcode toolchain as the basis for their compiler across macOS to iOS and other products. While the GNU Compiler Collection (GCC) supports AArch64 and macOS/Darwin, it hasn't supported the two of them together but there is a port in progress to change it.

  • Dirk Eddelbuettel: tidyCpp 0.0.5 on CRAN: More Protect’ion

    Another small release of the tidyCpp package arrived on CRAN overnight. The packages offers a clean C++ layer (as well as one small C++ helper class) on top of the C API for R which aims to make use of this robust (if awkward) C API a little easier and more consistent. See the vignette for motivating examples. The Protect class now uses the default methods for copy and move constructors and assignment allowing for wide use of the class. The small NumVec class now uses it for its data member.

  • QML Modules in Qt 6.2

    With Qt 6.2 there is, for the first time, a comprehensive build system API that allows you to specify a QML module as a complete, encapsulated unit. This is a significant improvement, but as the concept of QML modules was rather under-developed in Qt 5, even seasoned QML developers might now ask "What exactly is a QML module". In our previous post we have scratched the surface by introducing the CMake API used to define them. We'll take a closer look in this post.

  • Santiago Zarate: So you want to recover and old git branch because it has been overwritten?
  • Start using YAML now | Opensource.com

    YAML (YAML Ain't Markup Language) is a human-readable data serialization language. Its syntax is simple and human-readable. It does not contain quotation marks, opening and closing tags, or braces. It does not contain anything which might make it harder for humans to parse nesting rules. You can scan your YAML document and immediately know what's going on. [...] At this point, you know enough YAML to get started. You can play around with the online YAML parser to test yourself. If you work with YAML daily, then this handy cheatsheet will be helpful.

  • 40 C programming examples

    C programming language is one of the popular programming languages for novice programmers. It is a structured programming language that was mainly developed for UNIX operating system. It supports different types of operating systems, and it is very easy to learn. 40 useful C programming examples have been shown in this tutorial for the users who want to learn C programming from the beginning.

Devices/Embedded: Asus Tinker Board 2 and More

  • Asus Tinker Board 2 single-board computer now available for $94 and up - Liliputing

    The Asus Tinker Board 2 is a Raspberry Pi-shaped single-board computer powered by a Rockchip RK3399 hexa-core processor and featuring 2GB to 4GB of RAM. First announced almost a year ago, the Tinker Board 2 is finally available for $99 and up. Asus also offers a Tinker Board 2S model that’s pretty similar except that it has 16GB of eMMC storage. Prices for that model start at about $120.

  • Raspberry Pi Weekly Issue #371 - Sir Clive Sinclair, 1940 – 2021

    This week ended with the incredibly sad news of the passing of Sir Clive Sinclair. He was one of the founding fathers of home computing and got many of us at Raspberry Pi hooked on programming as kids. Join us in sharing your Sinclair computing memories with us on Twitter and our blog, and we’ll see you next week.

  • cuplTag battery-powered NFC tag logs temperature and humidity (Crowdfunding) - CNX Software

    Temperature and humidity sensors would normally connect to a gateway sending data to the cloud, the coin-cell battery-powered cuplTag NFC tag instead sends data to your smartphone after a tap. CulpTag is controlled by an MSP430 16-bit microcontroller from Texas Instruments which reads and stores sensor data regularly into an EEPROM, and the data can then be read over NFC with the tag returning an URL with the data from the sensor and battery, then display everything on the phone’s web browser (no app needed).

  • A first look at Microchip PolarFire SoC FPGA Icicle RISC-V development board - CNX Software

    Formally launched on Crowd Supply a little over a year ago, Microchip PolarFire SoC FPGA Icicle (codenamed MPFS-ICICLE-KIT-ES) was one of the first Linux & FreeBSD capable RISC-V development boards. The system is equipped with PolarFire SoC FPGA comprised a RISC-V CPU subsystem with four 64-bit RISC-V (RV64GC) application cores, one 64-bit RISC-V real-time core (RV64IMAC), as well as FPGA fabric. Backers of the board have been able to play with it for several months ago, but Microchip is now sending the board to more people for evaluation/review, and I got one of my own to experiment with. That’s good to have a higher-end development board instead of the usual hobbyist-grade board. Today, I’ll just have a look at the kit content and main components on the board before playing with Linux and FPGA development tools in an upcoming or two posts.

  • What is IoT device management?

    Smart devices are everywhere around us. We carry one in our pocket, watch movies on another while a third cooks us dinner. Every day there are thousands of new devices connecting to the Internet. Research shows that by 2025, more than 150,000 IoT devices will come online every minute. With such vast numbers it is impossible to keep everything in working order just on your own. This brings the need for IoT device management. But what is IoT device management? To answer this question we first need to understand what the Internet of Things (IoT) is.

  • Beelink U59 mini PC with Intel Celeron N5095 Jasper Lake coming soon - Liliputing

    Beelink says the system ships with Windows 10, but it should also supports Linux.

  • Beelink U59 Celeron N5095 Jasper Lake mini PC to ship with 16GB RAM, 512GB SSD - CNX Software

    Beelink U59 is an upcoming Jasper Lake mini PC based on the Intel Celeron N5095 15W quad-core processor that will ship with up to 16GB RAM, and 512 GB M.2 SSD storage. The mini PC will also offer two 4K HDMI 2.0 ports, a Gigabit Ethernet port, WiFi 5, as well as four USB 3.0 ports, and support for 2.5-inch SATA drives up to 7mm thick.

Graphics: Mesa, KWinFT, and RADV

  • Experimenting Is Underway For Rust Code Within Mesa - Phoronix

    Longtime Mesa developer Karol Herbst who has worked extensively on the open-source NVIDIA "Nouveau" driver as well as the OpenCL/compute stack while being employed by Red Hat is now toying with the idea of Rust code inside Mesa.  Karol Herbst has begun investigating how Rust code, which is known for its memory safety and concurrency benefits, could be used within Mesa. Ultimately he's evaluating how Rust could be used inside Mesa as an API implementation as well as for leveraging existing Mesa code by Rust. 

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  • KWinFT Continues Working On WLROOTS Render, Library Split

    KWinFT as a fork of KDE's KWin X11/Wayland compositor code continues making progress on driving fundamental display improvements and ironing out the Wayland support.  KWinFT has been transitioning to use WLROOTS for its Wayland heavy-lifting and that process remains ongoing. KWinFT has also been working on splitting up its library code to make it more manageable and robust.  Among the features still desired by KWinFT and to be worked on include input methods, graphical tablet support, and PipeWire video stream integration. Currently there are two full-time developers working on the project but they hope to scale up to four to five full-time developers. 

  • Raytracing Starting to Come Together – Bas Nieuwenhuizen – Open Source GPU Drivers

    I am back with another status update on raytracing in RADV. And the good news is that things are finally starting to come together. After ~9 months of on and off work we’re now having games working with raytracing.

  • Multiple Games Are Now Working With RADV's Ray-Tracing Code - Phoronix

    Not only is Intel progressing with its open-source ray-tracing driver support but the Mesa Radeon Vulkan driver "RADV" has been rounding out its RT code too and now has multiple games correctly rendering. Bas Nieuwenhuizen has been spearheading the RADV work on Vulkan ray-tracing support and after more than a half-year tackling it things are starting to fall into place nicely.Games such as Quake II RTX with native Vulkan ray-tracing are working along with the game control via VKD3D-Proton for going from Direct3D 12 DXR to Vulkan RT. Metro Exodus is also working while Ghostrunner and Doom Eternal are two games tested that are not yet working.

Audiocasts/Shows: Full Circle Weekly News, Juno Computers, Kali Linux 2021.3