Stevie Caldwell, Senior Engineering Technical Lead at Fairwinds, joins host Priyanka Raghavan to discuss zero-trust network reference architecture. The episode begins with high-level definitions of zero-trust architecture, zero-trust reference architecture, and the pillars of Zero Trust. Stevie describes four open-source implementations of the Zero Trust Reference Architecture: Emissary Ingress, Cert Manager, LinkerD, and the Policy Engine Polaris. Each component is explored to help clarify their roles in the Zero Trust journey. The episode concludes with a look at the future direction of Zero Trust Network Architecture.

This episode is sponsored by QA Wolf.

Direct download: 635-stevie-caldwell-zero-trust-architecture.mp3
Category:general -- posted at: 11:33pm CET

Infrastructure engineer and Kubernetes ingress-Nginx maintainer James Strong joins host Robert Blumen to discuss the Kubernetes networking layer. The discussion draws on content from Strong’s book on the topic and covers a lot of ground, including: the Kubernetes network's use of different IP ranges than the host network; overlay network with its own IP ranges compared to using expanded portions of the host network ranges; adding routes with kernel extension points; programming kernel extension points with IP tables compared to eBPF; how routes are updated as the host network gains or loses nodes, the use of the Linux network namespace to isolate each pod; routing between pods on the same host; routing between pods across the host network; the container-network interface (CNI); the CNI ecosystem; differences between CNIs; choosing a CNI when running on a public cloud service; the Kubernetes service abstraction with a cluster-wide IP address; monitoring and telemetry of the Kubernetes network; and troubleshooting the Kubernetes network.

Brought to you by IEEE Software magazine and IEEE Computer Society.

Direct download: 619_james_strong_kubernetes_networking.mp3
Category:general -- posted at: 12:13am CET

Ines Montani, co-founder and CEO of Explosion, speaks with host Jeremy Jung about solving problems using natural language processing (NLP). They cover generative vs predictive tasks, creating a pipeline and breaking down problems, labeling examples for training, fine-tuning models, using LLMs to label data and build prototypes, and the spaCy NLP library.

Direct download: 611-Ines_Montani_Natural_Language_Processing.mp3
Category:general -- posted at: 10:00am CET

William Morgan, founder of the Linkerd service mesh and CEO of Bouyant, joins SE Radio’s Robert Blumen for a discussion of sidecars, service mesh, and a forthcoming enhancement to kubernetes to support sidecars natively. The conversation explores the origin of sidecars, sidecars and service mesh, and migrating service mesh to kubernetes. They take a deep dive into some aspects of running service mesh on kubernetes, the difficulties in running a sidecar container in a pod, and Kubernetes Enhancement Proposal (KEP) 753, which is intended to provide better native support for sidecar containers. William also gives some thoughts on the continuing relevance of service mesh.

Direct download: 600_william_morgan_kubernetes_sidecars_and_service_mesh.mp3
Category:general -- posted at: 1:17am CET

Zach Lloyd, CEO of Warp.dev, discusses how to implement and effectively use command-line terminals. Host Gregory Kapfhammer speaks with Lloyd about how command-line terminals work and how the Warp terminal uses the GPU and AI to enhance a software developer’s productivity. They also discuss the trade-offs associated with using the Rust programming language to implement a command-line terminal. Brought to you by IEEE Computer Society and IEEE Software magazine.

Direct download: 581_Zach_Lloyd_Terminal_Emulators.mp3
Category:general -- posted at: 8:11pm CET

In this episode, Varun Singh, Chief Products and Technology Officer at Daily.co, speaks with host Nikhil Krishna about the 30-year evolution of web protocols. In particular, they explore the impact of protocol ossification, which has supported the Internet’s success but also limits the flexibility of evolving protocol suites such as TCP/IP and UDP by constraining future development. Varun points out how the end-to-end principle emphasizes full flexibility for end hosts, but the TCP implementation in the OS kernel as well as in “middle boxes” such as ISPs contributes to the constraints of ossification by blocking certain types of traffic. Further, the development of new protocols is challenging due to the need for backward compatibility with existing protocols. They discuss Google’s efforts – and the challenges it has faced – in working to move the HTTP protocol forward. The role of standards bodies such as the IETF and collaboration between industry stakeholders is crucial for the evolution of internet protocols, requiring a balance between maintaining backward compatibility and introducing new protocols such as QUIC and HTTP/3 to address existing constraints and improve internet performance and security. indeed, QUIC includes features that seek to actively avoid ossification and encourage evolution.

Direct download: 573_varun_singh_evolution_of_internet_protocols.mp3
Category:general -- posted at: 11:06pm CET

Jeroen Mulder, author of Multi-Cloud Strategy for Cloud Architects, joins host Robert Blumen for a discussion of public cloud, private cloud, and multi-cloud computing architectures and trends. They start by considering what defines cloud computing and what differentiates the major cloud providers, including whether they are more alike or different in the services they offer.  Jeroen discusses governance, regulatory compliance, and data locality as drivers of where enterprises want to run their workload. They explore use cases for multi-cloud, and discuss architectural challenges in migrating to kubernetes, as well as issues with networking, security, and identity management with multi-cloud architectures. Finally, they discuss running public cloud compute on on-prem resources with Anthos, Outback, and related technologies.

Direct download: 571_jeroen_mulder_multi-cloud_governance.mp3
Category:general -- posted at: 8:12pm CET

Vladyslav Ukis, author of the book Establishing SRE Foundations: A Step-by-Step Guide to Introducing Site Reliability Engineering in Software Delivery Organizations, discusses how to roll out SRE in an enterprise. SE Radio host Brijesh Ammanath speaks with Vlad about the origins of SRE and how it complements ITIL (Information Technology Infrastructure Library). They examine how firms can establish foundations for rolling out SRE, as well as how to overcome challenges they might face in adopting. Vlad also recommends steps that organizations can take to sustain and advance their SRE transformation beyond the foundations.

Direct download: 569_vladyslav_ukis_enterprise_sre.mp3
Category:general -- posted at: 11:54pm CET

Simon Bennetts, a distinguished engineer at Jit, discusses one of the flagship projects of OWASP: the Zed Attack Proxy (ZAP) open source security testing tool. As ZAP’s primary maintainer, Simon traces the tool's origins and shares some anecdotes with SE Radio host Priyanka Raghavan on why there was a need for it. They take a deep dive into ZAP’s features and its ability to integrate with CI/CD, as well as shift security left. Bennetts also considers what it takes to build a successful open source project before spending time on ZAP’s ability to script to provide richer results. Finally, the conversation ends with some questions on ZAP’s future in this AI-powered world of bots.

Direct download: 568_simon_bennetts_owasp_dynamic_application_security_testing_tool_zap.mp3
Category:general -- posted at: 10:29pm CET

Dave Cross, owner of Magnum Solutions and author of GitHub Actions Essentials (Clapham Technical Press), speaks with SE Radio host Gavin Henry about GitHub actions, the value they provide, and the best practices for using them in your projects. Cross describes the vast range of things that developers can do with GitHub Actions, including some use cases you might never have thought about. They start with some general discussion of CI/CD and then consider the three main types of events that drive GitHub actions before digging in to details about fine-grained action events, Action Marketplace, contexts, yaml, docker base images, self-hosted runners, and more. They further explore identity management, permissions, dependency management, saving money, and how to keep your secrets secret.

Direct download: 567_dave_cross_github_actions.mp3
Category:general -- posted at: 1:05am CET

Ashley Peacock, author of the book Creating Software with Modern Diagramming Techniques, speaks with SE Radio host Akshay Manchale about diagrams in software engineering. They discuss the power of diagramming and some reasons we don’t fully use it as often as we should. Ashley contrasts historical use of UML diagrams versus modern diagrams, which don't have hard rules about representations. The episode examines different types of diagrams through an example application and how it could be built with modern tools such as Streamy to simplify the building, versioning, and maintenance of diagrams.

Direct download: 566_ashley_peacock_diagramming_software_engineering.mp3
Category:general -- posted at: 1:43am CET

Luca Galante, head of product at Humanitec, joins host Jeff Doolittle for a conversation about platform engineering. They begin by defining platform engineering and its relationship to, and distinction from, DevOps. Tracing platform engineering's history, Luca describes how internal developer platforms are fundamental, and then explores the goals of addressing complexity and reducing the cognitive load on developers by creating golden paths.

Direct download: 565_luca_galante_platform_engineering.mp3
Category:general -- posted at: 12:25am CET

Paul Hammant, independent consultant, joins host Giovanni Asproni to speak about trunk-based development—a version control management practice in which developers merge small, frequent updates to a core “trunk” or main branch. The episode explores the technique in some detail, including its pros and cons and some examples from real projects, and offers suggestions on how to get started. The conversation touches on a set of related topics, including code reviews, feature flags, continuous integration, and testing.

Direct download: 564_paul_hammant_trunk-based_development.mp3
Category:general -- posted at: 2:57am CET

Timothy Beamish of BenchSci discusses React and Next.js, two of today's most popular front-end frameworks. Host Philip Winston speaks with Beamish about components, routing, JSX, client-side and server-side rendering, single-page applications, automatic code-splitting, image optimization, and more. Beamish also details his experience moving a real-world application to Next.js.

 

Direct download: 557_timothy_beamish_react_and_next.js.mp3
Category:general -- posted at: 7:52pm CET

On Freund, founder of Wilco and former VP of Engineering at WeWork, speaks with SE Radio’s Brijesh Ammanath about “upskilling” – going deeper or increasing the breadth of your skills. On has years of experience in helping developers master the skills needed to advance in their careers. This episode explores the importance of upskilling in a constantly evolving tech landscape. They focus particularly on how and why senior and expert developers should keep learning, upskilling, and reskilling throughout their careers. Freund offers suggestions on how to face some common challenges, especially for remote or distributed workers, and how and why engineering managers can help enable upskilling for their teams.

Direct download: 555_on_freund_upskilling.mp3
Category:general -- posted at: 12:23am CET

Dan Lorenc, CEO of Chainguard, a software supply chain security company, joins SE Radio editor Robert Blumen to talk about software supply chain attacks. They start with a review of software supply chain basics; how outputs become inputs of someone...
Direct download: 535-dan-lorenc-supply-chain-attacks-final.mp3
Category:general -- posted at: 1:54am CET

Travis Kimmel talks with Johnathan Nightingale about scaling engineering management. Their discuss when to hire additional engineering managers and how to set them up for success, how leaders can prepare for “growing pains” as an organization scales,

Direct download: 353_combined_1.9.18_mixdown.mp3
Category:general -- posted at: 8:10pm CET

Bernd Rücker, who has contributed to multiple open source workflow management projects, discusses orchestrating microservices with workflow management.  As distributed systems evolve into a family of microservices that must handle long-running stateful processes with time-dependent actions, events, multiple paths through the system, and complex rollbacks, the workflow management model provides a way to ensure clear modeling, correctness, and separation of concerns.   Rücker recommends a federated model in which each microservice is paired with its own workflow to handle retries and other policies and failure modes around that service.  Robert Blumen spoke with Rücker about microservice architecture, event-driven systems, long-running stateful processes versus synchronous request/response, event handling, time-outs, and handling exceptional conditions with compensating transactions. Rücker compares the choreography versus orchestration models for collaboration and discusses why orchestration provides a better separation of concerns.  The discussion delves into the implementation of workflow management systems including persistence, scaling, event handling, timers and scheduling, and similarities to CQRS.  The discussion wraps up with monitoring and visualization.

Direct download: 353-bernd-rucker_microservices.mp3
Category:general -- posted at: 12:39am CET

Nate Black interviews Glynn Bird on using open source to develop your career or get a job, and how maximize productivity and learning. We discuss how to get your pull request accepted, how to make your own project successful, and how to survive updates.


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