python Archives - RHD Blog

Introducing conu – Scripting Containers Made Easier

By Dominika Hoďovská March 7, 2018March 7, 2018

There has been a need for a simple, easy-to-use handler for writing tests and other code around containers that would implement helpful methods and utilities. For this we introduce conu, a low-level Python library.

This project has been driven from the start by the requirements of container maintainers and testers. In addition to basic image and container management methods, it provides other often used functions, such as container mount, shortcut methods for getting an IP address, exposed ports, logs, name, image extending using source-to-image, and many others.

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Create a scalable REST API with Falcon and RHSCL

By Shane Boulden December 29, 2017December 29, 2017

APIs are critical to automation, integration and developing cloud-native applications, and it’s vital they can be scaled to meet the demands of your user-base. In this article, we’ll create a database-backed REST API based on the Python Falcon framework using Red Hat Software Collections (RHSCL), test how it performs, and scale-out in response to a growing user-base.

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Speed up your Python using Rust

By Bruno Rocha November 16, 2017November 17, 2017

Rust is a systems programming language that runs blazingly fast, prevents segfaults, and guarantees thread safety.

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The GDB Python API

By Phil Muldoon November 10, 2017November 9, 2017

GDB has evolved in the last several years to provide a Python API. This series of articles will look at how a user can program GDB with the API and will also take an in-depth look at several features of that API. But, before we begin, a small history lesson is needed and a look at just why an API was needed.

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Announcing release of Software Collections, Developer Toolset, new compilers

By Mike Guerette October 25, 2017October 25, 2017

I am pleased to announce the general availability of numerous Red Hat curated collections of the latest, stable application development tools, languages, compilers, databases, and more. Created for Red Hat Enterprise Linux, developers can access these via the following open source offerings:

Red Hat Software Collections
Red Hat Developer Toolset
New RHEL Compilers: Clang/LLVM, Go, and Rust

Components delivered as Linux Containers can also be used on Red Hat OpenShift Container Platform.

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Using Falcon to cleanup Satellite host records that belong to terminated OSP instances

By Simeon Debreceni October 6, 2017October 5, 2017

Overview

In an environment where OpenStack instances are automatically subscribed to Satellite, it is important that Satellite is notified of terminated instances so that is can safely delete its host record. Not doing so will:

Exhaust the available subscriptions, leading to unsubscribed hosts not being able to apply updates and security errata.
In the event that an emergency security errata needs to be deployed across the organization, Satellite administrators would be unable to determine if a host was either off or terminated, leading to uncertainty with their security posture.

In smaller environments, where one team is responsible for both OSP and Satellite, it’s possible to have one system administrator do this by using their administrator level access across both systems to determine which host records can be safely deleted in Satellite when the corresponding instance no longer exists.

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Red Hat updates Python, PHP, Node.js, more; supports new arches

By Mike Guerette October 4, 2017October 10, 2017

I am pleased to announce the immediate availability of Red Hat Software Collections 3.0 Beta, Red Hat’s newest installment of open source development tools, dynamic languages, databases, and more. Delivered on a separate lifecycle from Red Hat Enterprise Linux with a more frequent release cadence, Red Hat Software Collections bridges development agility and production stability by helping you create modern applications that can be confidently deployed into production. Most of these components are also available in Linux container image format to streamline microservices development.

In addition to these new components having traditional support for x86_64, Red Hat Software Collection 3.0 Beta adds support for three new architectures: s390x, aarch64, and ppc64le.

NEW ADDITIONS to Red Hat Software Collections 3.0 Beta include:

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