Welcome to this week’s Uptime Sync. This issue covers how a broken DNSSEC rollover took down Albania’s .AL.AL.AL domain, how Modal scales to 111 million concurrent sandboxes in seconds, and the lessons Netflix learned while building service topology at scale. We also dig into modern storage I/O bottlenecks, why job queues are deceptively difficult to get right, and how an unpatched Argo CD vulnerability can lead to Kubernetes cluster takeover through cache poisoning.
On the database and reliability front: why PostgreSQL teams use strict memory overcommit to avoid the OOM killer, how to make PostgreSQL prune partitions even when queries filter on non-partitioned columns, and the operational details that matter when systems are under real pressure.
On the tutorial front: running self-hosted LLMs on Kubernetes with vLLM, using Copilot to profile and fix Java heap sizing, integrating OpenTelemetry Collectors with Kubernetes and VictoriaMetrics, building a VPN with Tailscale, shipping blue/green deployments with Argo Rollouts, and building container networking from scratch.
Newsworthy Reads
Tutorials of the Week
Projects of the Week
A fast, portable terminal fuzzy finder that lets users search files, text, repositories, environment variables, containers, and other data sources
LFK adds a keyboard-first Kubernetes TUI with owner-based navigation for logs, YAML, crashes, RBAC, Helm, and Argo CD resources.
An open-source observability platform that lets engineers search and visualize logs, metrics, traces, errors, and session replays together on
An open-source, read-only AI investigation copilot that diagnoses infrastructure problems from the terminal, web UI, or team chat.
A Rust- and KVM-based sandbox service that lets AI agents run code inside fast, hardware-isolated environments with snapshots, cloning, rollback.
An installable agent skill that turns plain-English system and process descriptions into polished architecture, workflow, sequence, data-flow
Windmill is a self-hostable developer platform that turns scripts into APIs, background jobs, workflows, and autogenerated or custom UIs for internal application
Uncloud deploys Compose apps across multiple Docker hosts with automatic HTTPS when Kubernetes is heavier than the multi-server control plane you need.
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