Cloud, Kubernetes & DevSecOps Blog

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Deep-Dives in Cloud, Kubernetes, Security & Architecture

Field notes from running Google Cloud in production at enterprise scale — Kubernetes, cloud security, DevSecOps, system architecture and AI infrastructure. Written for engineers who ship, not for slide decks. A new article every weekday, in English and German.

Articles: 124
Topics: 8
Languages: EN · DE

Aleksei AleinikovSenior Cloud Platform & Security Engineer

Google Cloud Ambassador
5× GCP Professional
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Ansible vs Terraform: What to Learn and When to Use Both

Featured

DevOps

Nov 12, 202617 minNewBeginner

Ansible vs Terraform: What to Learn and When to Use Both

A server can exist without being ready to serve traffic. Understand where Terraform’s resource lifecycle meets Ansible’s configuration tasks, with a complete example.

Key takeawayStart with Terraform to create networks, compute and other API-managed resources; start with Ansible to configure existing systems and orchestrate operational tasks.

Claude Fable 5.2 and Mythos 5.2: Power, Price and Limits

Claude Fable 5.2 brings stronger long-running agents, but effort changes the bill and the outcome. Understand Mythos access, benchmark caveats and API migration.

Argo CD vs Flux: Same Git, Different Control

DevOps

Nov 10, 202622 minNewIntermediate

Argo CD vs Flux: Same Git, Different Control

Argo CD and Flux both reconcile Kubernetes from versioned configuration. Their Helm lifecycle, permissions and fleet architecture change how your team operates.

Security

Nov 9, 202621 minNewAdvanced

AI Agent Security: Your Assistant Has the Keys

A coding assistant can carry developer authority into files, plugins, browsers and cloud APIs. Understand the failures and build controls outside the model.

Nov 6, 202619 minNewBeginner

Nouswise vs NotebookLM: When Research Becomes a Workflow

Compare Nouswise and Google NotebookLM by source reuse, citations, research outputs, APIs and cost. A practical route from a document question to a repeatable team workflow.

Security

Nov 5, 202615 minNewAdvanced

Local LLMs for Cybersecurity: Choose the Brain, Limit Its Reach

Choose a local LLM for defensive security by task, memory and evidence quality. Includes benchmark pitfalls, a contained architecture and six synthetic evaluation cases.

mTLS vs TLS Explained: Two Identities, One Connection

Security

Nov 4, 202612 minIntermediate

mTLS vs TLS Explained: Two Identities, One Connection

mTLS vs TLS explained through the handshake, certificate trust, authorization and proxy boundaries, with a reproducible local demo and eight checked outcomes.

Nov 3, 20269 minIntermediate

DeepSeek V4.1 Flash Explained: The Memory Trick Behind Cheap Agents

DeepSeek V4.1 Flash explained through its memory architecture, vendor benchmarks and worked agent costs, with practical API integration details.

Navicat 18 Review: Is It Worth It for PostgreSQL? Tested on 10M Rows

Data

Nov 2, 202614 minBeginner

Navicat 18 Review: Is It Worth It for PostgreSQL? Tested on 10M Rows

Navicat 18 promises code insight, refactoring, data masking and AI that previews before it writes. I put it in front of a PostgreSQL table with 10 million rows and wrote down what worked, what hid, and what needs care.

Oct 30, 202614 minBeginner

Gemini 4 Carbon Review: Benchmarks, Price, Access and Who It Is Actually For

Gemini 4 Carbon reviewed through sourced benchmarks, public API access, introductory pricing through November 30 and a practical evaluation plan.

Ghidra MCP vs REA: How AI Agents Reverse Engineer Software, and What the Setup Changes on Your Machine

Security

Oct 29, 202623 minAdvanced

Ghidra MCP vs REA: How AI Agents Reverse Engineer Software, and What the Setup Changes on Your Machine

Ghidra MCP servers connect one decompiler to an AI agent. REA puts many analysis tools, Ghidra included, behind a single MCP server. How the two differ, what their setup changes on your machine, what can go wrong, and where the law draws lines.

Tailscale vs WireGuard: What the Control Plane Buys You, and What the SSH Flaws Cost

Security

Oct 28, 202620 minIntermediate

Tailscale vs WireGuard: What the Control Plane Buys You, and What the SSH Flaws Cost

Tailscale runs on WireGuard, so the real comparison is a bare tunnel against a tunnel plus a control plane. What that control plane adds, what it costs in speed and money, and what the October Tailscale SSH vulnerabilities actually change.

Oct 27, 202616 minBeginner

GPT-6.1 Terra vs Claude Sonnet 5.5 vs GPT-6.1 Sol: Half the Price per Token Is Not Half the Bill

GPT-6.1 Terra vs Claude Sonnet 5.5 vs GPT-6.1 Sol compared on official specs, vendor benchmarks, independent Artificial Analysis results and real cost per agent turn: why Terra's half price shrinks to 44% per task, where Sonnet 5.5 still leads, what changes past 272K tokens, and which model to pick.

JWT Explained: What a JSON Web Token Is and How It Breaks

Security

Oct 26, 202613 minIntermediate

JWT Explained: What a JSON Web Token Is and How It Breaks

A JWT is a signed JSON object in three base64url parts: header, payload and signature. Anyone can decode it; only the key holder can sign it. How a JWT is built, how to verify one correctly, HS256 vs RS256 vs ES256, the attacks that still work (alg none, algorithm confusion, weak secrets, kid and jku injection) and how to decode a token without leaking it.

PostgreSQL Indexes: Which Type to Use (10M-Row Benchmark)

Data

Oct 23, 202614 minAdvanced

PostgreSQL Indexes: Which Type to Use (10M-Row Benchmark)

A PostgreSQL index is a separate structure that lets the database find rows without reading the whole table. Which type to use, from B-tree and hash to BRIN, GIN and partial or covering indexes, measured on 10 million rows with PostgreSQL 18.