Articles by tag: devops

How Kubernetes Manages Container Scaling and Load Balancing

Learn how does kubernetes manage container scaling and load balancing with HPA, cluster autoscaler, and service mesh. Master production-grade autoscaling and traffic distribution.

How to Use Terraform for Cloud Infrastructure Automation

Learn how to use Terraform for cloud infrastructure automation with this step-by-step guide. Master Infrastructure as Code, workflows, and multi-cloud deployments. Start automating today.

Docker vs VM: Key Differences Explained (2026)

What is a docker container and how does it differ from a vm? Learn architecture, security, performance, and when to use each. Make the right choice for your projects.

Docker vs Kubernetes: Key Differences Explained

Learn what is the difference between Docker and Kubernetes. Compare containerization vs orchestration, use cases, and choose the right tool for your stack.

Monolith vs Microservices: Key Architecture Differences

Learn what is the difference between monolithic and microservices architecture. Compare strengths, costs, and choose the right fit for your team.

ClickHouse configuration: production setup of config.xml and users.xml

ClickHouse production setup: log rotation, merge_tree parameters, user profiles, quotas, TLS/SSL, config.d overrides. Security checklist.

Vercel Leak: How OAuth Hack Compromised Environment Variables

Breaking Down the Vercel Security Incident: From Leak via Context.ai to Environment Variables Access. Recommendations for Developers and DevOps.

Running Linux containers on Android without root: Podroid and Podman

How to run Podman and Linux containers on Android without root. Overview of the architecture, installation, and usage scenarios of the Podroid project.

Forgejo v15.0 LTS: secure CI/CD and Git platform

Forgejo v15.0 LTS Overview: new features for developers, secure tokens, improved UI, and expanded CI/CD capabilities. Learn how to deploy your own platform.

Claude Code Routines: automation for developers

How to use Routines in Claude Code for CI/CD, code review, and task management. Security, triggers, and practical examples.

Fixtures in Go for autotests: practice with Axiom

How to extract infrastructure from Go tests using fixtures and the Axiom library. Clean, maintainable integration tests without code duplication.

Kubernetes for Developers: Practice and Debugging

Master Kubernetes from Scratch: Local Cluster, Basic Objects, Cloud Deploy, and Error Debugging. Step-by-Step Guide for Middle/Senior Developers.

Development Platforms: How to Choose by Product Stage

Learn which development platform suits your product at each stage — from MVP to enterprise. Avoid common mistakes and control costs.

AI Code Crisis: Security and Review in 2026

Why do AI tools provide only 10% productivity boost with 91% increase in review time? Analysis of security crisis causes and process restructuring strategies. Learn how to avoid security debt.

Migration of n8n to Traefik 3.3 and Postgres 16: technical guide

Step-by-step instructions for safe n8n upgrade from Traefik 1.x and Postgres 11. Save data and accounts. Read the guide for DevOps engineers.

Risks of personal monopoly in IT: how to avoid SPOF

Analysis of architectural vulnerabilities due to dependence on key developers. Methods of risk reduction through process solutions and metrics. Learn how to protect the system.

Monitoring of Monitoring: Resilience Strategies | IT Practice

How to Avoid Blind Spots in Observability. Practical Solutions for Recursive System Control. Real Cases and Proven Strategies.

Claude Code on Windows: setup for developers

How to properly install and configure Claude Code on Windows for working with AWS and PowerShell. Proven solutions for IT specialists.

Deploy MCP Servers in Kubernetes: Architecture and JWT

Scaling MCP Servers in Kubernetes: sidecar proxying, Helm charts, JWT authentication via Envoy and secrets management.

Tmux for AI Agents: Templates 2026

Manage 4–8 parallel AI agents in tmux: Feature Designs, forking, git worktree. Templates from Snowflake/Instacart for senior dev. Configs and scripts inside. Master now.

PowerShell 7.7: transition to MSIX instead of MSI

Microsoft is abandoning MSI in PowerShell 7.7 in favor of MSIX for predictable deployment. Differential updates, availability, and enterprise support. Learn the details of the changes.

Backup Day: 3-2-1 rule and statistics

Learn the history of World Backup Day on March 31, key data loss statistics, and how to implement the 3-2-1 rule in Linux. Practical examples for devops. Check your backups today!

Mermaid has overtaken PlantUML in popularity

Mermaid leads over PlantUML in Google, GitHub, VS. How this changes the work of systems analysts: textual diagrams in docs-as-code. Look for templates and migration.

Dokploy: Docker Swarm platform installation

Deploy Dokploy on a Linux server: installation script, Swarm, Traefik, Postgres/Redis. Requirements, script code, error handling. Ideal for DevOps. Install in 5 minutes and deploy containers.

Alertmanager-jira: integration of alerts with Jira

Set up Alertmanager webhook for automatic task creation in Jira. Flexible templates, custom fields, JQL deduplication. Docker deployment for Prometheus/VictoriaMetrics. Learn more.

Open source PostgreSQL backups on Go

Self-hosted tool for pg_dump with notifications, health checks and monitoring. Avoid data loss like in a real case with $1500/mo. Install on VPS or cloud in minutes.

RTO Calculation: IT Recovery Planning

Learn how to calculate the minimum service recovery time, localize failures, and control risks. Practical steps for middle/senior DevOps and sysadmin.

AI agent for analyzing DevOps alerts with MCP

Develop a PoC bot on n8n with Claude and MCP for automatic parsing of alerts in K8s, VictoriaMetrics, Loki. Get ready-made commands and context. Instructions for middle/senior DevOps.

AI agents vs developers: 5 differences

Difference between AI agents and programmers in memory, architecture, errors. How to adapt the process: context, specifications, checks. For middle/senior dev.

VXLAN MacSec: infrastructure connectivity between DC

Configuring VXLAN tunnel with MacSec for L2 network between cloud providers. Step-by-step commands, tcpdump examples, scaling. Ideal for DevOps and SRE. Study the configuration.

DevOps in legacy: monolith and deploys

Analysis of typical DevOps problems in systems with monolith and microservices: permission denied, manual gates, shared state. How to optimize pipeline and observability. For middle/senior.

Guide to installing OpenClaw AI on VPS

Deploy OpenClaw agent on VPS: docker-compose, scripts for Docker/PostgreSQL, Telegram interface. Full guide with code examples for middle/senior DevOps. Start in 10 minutes.

FIFO for one-time Docker Swarm secrets

How to protect secrets in Docker Swarm from docker exec: solution via named FIFO channels. One-time reading, without Vault. Implementation for middle/senior devops.

eBPF server diagnostics in 60 sec: melisai

Automate Linux metrics collection: eBPF, BCC, procfs to JSON in a minute. 37 anomaly rules, AI integration, rate-metrics. Save 30–40 min per incident. Download and test.

AI agents for QA: 11 pipeline skills

Multi-agent system automates 80% QA: from requirements decomposition to autotests in GitLab. Architecture, skills, integrations for middle/senior QA. Study the implementation on Claude Code Skills.

NXDOMAIN attack in Cloud DNS: zone migration

Analysis of NXDOMAIN traffic surge in Cloud DNS, cost increase, zone export and migration. Metrics, yc CLI commands, lessons for DevOps. Study the case and prepare.

429 Errors with RPS Limit: Poisson and Sharding

Analysis of Causes of Stable 429 Errors at 136 RPS and 150 Limit. Modeling with Poisson, Accounting for Retries and 6-Pod Limiter. Calculations for DevOps.

df du differ: find deleted files Linux

Breaking down why df shows 95% usage, and du — 20%. Step by step: lsof +L1 for search, > /proc/PID/fd/FD for cleanup without restart. copytruncate in logrotate. For sysadmin and DevOps.

Microservices eat up 40% of IT budget: calculations

Breakdown of costs for Kubernetes and microservices at 30 RPS: 1 million RUB/month on infra, TCO 4 times higher than monolith. Comparison, modular monolith. Save on DevOps and cloud — read the calculations.

Alertmanager-evateam: integration with EvaTeam

Set up automatic task creation in EvaTeam from Alertmanager alerts. Installation, eva__ fields and templates configuration instructions. For DevOps specialists.

GitHub Block: How to Prepare and Restore

Learn how to survive a GitHub account block: repository mirrors, contacting support, backup profile. Steps for middle/senior dev to avoid downtime. Prepare in advance.

Docker Courses 2026: DevOps and backend

Review of top-6 Docker courses for DevOps and Python-backend. Salaries, programs, containerization skills. Choose a course with CI/CD and Kubernetes practice. Start learning today.

Cynefin Framework for IT Decision-Making | Complexity Domains

Master strategic decisions in IT projects using the Cynefin framework. Learn how to match approaches to complexity levels and reduce project risks.

OpenVPN + Keycloak: OAuth2 setup

Integration of OpenVPN with Keycloak via openvpn-auth-oauth2. Step-by-step setup on Ubuntu 24.04, nginx and server configs. For DevOps and sysadmin.

DevOps evolution: pitfalls and practices

Breakdown of mature DevOps: from hype to pipeline, automation risks, Team Topologies and self-service. How to preserve skills in SRE — for middle/senior. Read cases and practices.

Kubernetes: 30% nodes failure test

How disabling 30% nodes revealed Kyverno and scheduling problems in production Kubernetes. Training plan, checklists for devops, success criteria. Learn how to improve HA.

Docker Compose for IaC servers: setup

Set up personal servers via Docker Compose: idempotent deploy, nftables firewall, WireGuard. Repo template, host-facts.sh scripts. For middle/senior devops. Start IaC without Ansible.

Java Developer Courses 2026 for Beginners

Choose from the top-5 Java courses: Netology, Hexlet, Practicum. Practice Spring, AI, microservices. Salaries from 120k rub. Start learning and find your first job.

HTTP/2 and HTTP/3 in Angie: configuration and performance

Technical guide to enabling HTTP/2 and HTTP/3 in the Angie web server. Parameters, limitations, QUIC, TLS 1.3, and monitoring. For middle/senior devops.

Circadian Rhythms DevOps: Risks of Night Shifts

How blue light breaks cognitive functions and increases cardiovascular risks in engineers. Scientific protection protocols — read.