Duck Cloud Blog

Practical guides for Duck Cloud tools, security, and workflows

Tutorials, SEO-friendly explainers, and step-by-step articles that link directly to the tools they describe.

Infrastructure

OpenTelemetry Baggage Without Privacy or Cost Surprises

Use OpenTelemetry baggage for low-cardinality routing context without leaking personal data or exploding telemetry costs.

Oct 21, 2026

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Infrastructure

Docker Multi-Platform Images: Buildx and Manifest Lists

Build and verify amd64 and arm64 images without shipping the wrong architecture or hiding emulation-specific failures.

Oct 21, 2026

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Security

Presigned URL Security: Expiry, Scope, and Upload Controls

Issue narrowly scoped presigned upload and download URLs while controlling expiry, object keys, content types, and post-upload validation.

Oct 21, 2026

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Infrastructure

PostgreSQL VACUUM and Transaction ID Wraparound

Understand dead tuples, freezing, autovacuum thresholds, and the monitoring signals that prevent transaction ID wraparound outages.

Oct 21, 2026

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Security

Webhook Signature Verification With Replay Protection

Verify webhook signatures, enforce timestamp windows, and make event processing idempotent so captured deliveries cannot be replayed.

Oct 21, 2026

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Software Engineering

API Idempotency Keys: How to Make Retries Safe

Design idempotency keys that prevent duplicate charges and duplicate jobs when clients retry after uncertain failures.

Oct 21, 2026

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Infrastructure

Kubernetes Startup, Readiness, and Liveness Probes Explained

Choose startup, readiness, and liveness probes that protect traffic without turning slow dependencies into restart loops.

Oct 21, 2026

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AI Engineering

DeepInfer Is Open Source: What Offline Inference Still Needs for Production

Understand what the newly open-sourced DeepInfer engine provides, what remains outside its scope, and how to evaluate it safely before production use.

Oct 21, 2026

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Infrastructure

ACME Multi-Perspective Validation: Check Geographic Consistency

Prepare for additional certificate-validation perspectives by checking public challenge consistency across DNS, routing, redirects and regional access rules.

Oct 20, 2026

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AI Engineering

CERN and Mistral: What a Physics Foundation Model Would Need to Prove

Read the CERN–Mistral statement of intent as a research plan, then understand the evidence needed to validate a foundation model for collider physics.

Oct 20, 2026

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AI Engineering

Mercury 3 and Text Diffusion: Check the Streaming Contract

Understand Mercury 3’s diffusion-model announcement, then test stable text, final output and cancellation against the contract your application promises.

Oct 20, 2026

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AI Engineering

Timestral Forecasting: Keep Known-Future Inputs Honest

Evaluate Timestral with time-ordered backtests, honest known-future inputs and simple baselines before using a time-series foundation model for operations.

Oct 20, 2026

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