Kubernetes v1.33: Updates to Container Lifecycle (4 minute read)
Kubernetes v1.33 introduces a zero sleep duration option for container lifecycle hooks via the enabled-by-default PodLifecycleSleepActionAllowZero feature gate. Alpha support for customizing the stop signal sent to containers is also included in v1.33 through the ContainerStopSignals feature gate, allowing users to specify a custom stop signal in the container spec provided the Pod has the operating system specified with spec.os.name.
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The pros and cons of Lambdalith (5 minute read)
Lambdaliths consolidate all API routes into a single AWS Lambda function, enabling easier migration from traditional apps, familiar developer experience, and cost-effective use of Lambda Function URLs. However, they can introduce slower cold starts, reduced observability, and scaling limitations compared to the function-per-endpoint approach.
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Why I use WebAssembly (5 minute read)
WebAssembly enables powerful offline apps by running native code in the browser, reducing server needs and hosting costs. It can be used to share core logic across web and native apps, making tools like cross-platform DAWs easier to build and more accessible.
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k0rdent (GitHub Repo)
k0rdent is designed to streamline the deployment and management of Kubernetes clusters at scale, acting as a "super control plane" for orchestrating multiple Kubernetes control planes. Built for platform engineering, k0rdent simplifies complex operations with centralized management and comprehensive lifecycle capabilities.
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GitHub Actions Importer (GitHub Repo)
GitHub Actions Importer assists in planning, testing, and automating migrations to GitHub Actions from platforms like Azure DevOps, Bamboo, and Jenkins.
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Handling Network Throttling with AWS EC2 at Pinterest (10 minute read)
Pinterest experienced severe performance degradation in critical storage systems due to undetected EC2 network throttling, particularly from microbursts that exceeded instance bandwidth limits. To address this, it deployed ENA metrics fleetwide for real-time monitoring and implemented techniques like fine-grained S3 rate limiting, staggered backup scheduling, and payload compression to mitigate throttling and improve reliability.
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Kubernetes Powers Mastercard's AI-Workbench for Secure Innovation (5 minute read)
Mastercard developed a secure, scalable AI-Workbench on Red Hat OpenShift, enabling rapid experimentation, model training, and deployment in isolated, GPU-powered Kubernetes clusters. This platform streamlines collaboration and automation for data scientists while meeting strict data privacy and offline operation requirements.
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Leveraging Change Data Capture For Database Migrations At Scale (3 minute read)
Squarespace migrated databases from PostgreSQL to CockroachDB using change data capture (CDC) to minimize downtime. A custom consumer using Apache Beam was written to process events and a fallback pipeline to mirror the process back to Postgres was created as a safety net. The migration allowed for horizontal scaling and improved resilience. Challenges like referential integrity were addressed by temporarily turning off constraints during the isolated migration process.
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