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DevOps, trading, and everything in between.

cloudSep 25, 202611 min read

Build a Savings Plans Coverage Agent: Size AWS Compute Commitments from Cost Explorer Without Overbuying

Build an AWS Savings Plans coverage agent that reads Cost Explorer coverage, utilization and recommendations, then sizes commitments a human queues, never buys.

sreSep 24, 202610 min read

Build a Node Drain Agent: PDB-Aware Kubernetes Maintenance That Never Violates a Disruption Budget

Build a node drain AI agent for Kubernetes maintenance: diagnose stuck drains, PodDisruptionBudget blockers and eviction errors, then fix them without paging.

cloudSep 23, 202612 min read

Build a CloudWatch Logs Cost Agent: Find Never-Expire Log Groups, Ingestion Hot Spots, and Debug Floods Before the Bill Does

Build a CloudWatch Logs cost agent that finds never-expire log groups, ingestion hot spots and debug floods, then ships retention fixes as Terraform PRs.

devopsSep 22, 202614 min read

Kubernetes HPA Shows <unknown> Targets (FailedGetResourceMetric): How to Fix It

Kubernetes HPA stuck on unknown targets with FailedGetResourceMetric? Fix metrics-server TLS and APIService errors, missing CPU requests, and custom metrics.

devopsSep 21, 202610 min read

GitHub MCP Server for DevOps Agents: Read-Only Mode, Minimal Toolsets, and Lockdown Mode Done Right

Set up the GitHub MCP server safely for DevOps AI agents: read-only mode, minimal toolsets, a single-repo fine-grained token, and lockdown mode vs injection.

devopsSep 20, 202611 min read

Build a Terraform State MCP Server: Let AI Agents Query Your Infrastructure Without Leaking Secrets

Build a Terraform state MCP server so AI agents can map cloud IDs to code, spot recent applies, and trace dependencies — GetObject-only IAM, secrets redacted.

devopsSep 19, 202612 min read

AI Agent Sandbox on Kubernetes: Run LLM-Written Code in gVisor Jobs with No Network and No Credentials

Build an AI agent sandbox on Kubernetes: run LLM-written scripts in ephemeral gVisor Jobs with no credentials, default-deny egress, hard timeouts, and quotas.

devopsSep 19, 202610 min read

Cosign Keyless Signing in GitHub Actions: Sign Images, Attest SBOMs, and Enforce It with Kyverno

Cosign keyless signing in GitHub Actions, end to end: sign images by digest, attach SBOM attestations, and enforce verification at admission with Kyverno.

devopsSep 18, 202612 min read

Kubernetes Pod Stuck in ContainerCreating (FailedCreatePodSandBox): How to Fix It

Kubernetes pod stuck in ContainerCreating with FailedCreatePodSandBox? Fix VPC CNI IP exhaustion, CNI plugin errors, pause image pulls, and sandbox timeouts.

cloudSep 17, 202612 min read

Build an S3 Storage Cost Agent: Lifecycle Rules, Intelligent-Tiering, and Orphaned Multipart Uploads Without Deleting the Wrong Data

Build an S3 storage cost agent that finds incomplete multipart uploads, noncurrent versions and untiered data, then ships lifecycle rules as Terraform PRs.

devopsSep 16, 202611 min read

Kubernetes Idle Cost: Find Zero-Traffic Workloads, 24/7 Dev Namespaces, and Orphaned PVCs (Then Scale Them to Zero)

Kubernetes idle cost, found and fixed: PromQL and kubectl checks for zero-traffic deployments, 24/7 dev namespaces, and orphaned PVCs, then KEDA scale-to-zero.

cloudSep 12, 202611 min read

Build an IAM Right-Sizing Agent: Shrink Over-Permissive AWS Roles with Access Analyzer and Last-Accessed Data

Build an IAM right-sizing agent that reads Access Analyzer unused-permission findings and last-accessed data, then opens a provably narrower policy PR.

devopsSep 11, 202611 min read

Audit Trails for DevOps AI Agents: Attribute Every kubectl, AWS Call, and Commit to a Run and a Human

Build an audit trail for DevOps AI agents: propagate a run ID and human approver into Kubernetes audit logs, AWS CloudTrail, and git commits, plus a ledger.

devopsSep 9, 20269 min read

How to Test an MCP Server: pytest Suites for Ops AI Tools That Touch Real Infra

How to test an MCP server with pytest: in-memory protocol tests, guardrail unit tests, a prompt-injection suite, and a tool-surface contract gate in CI.

sreSep 8, 20269 min read

Build an Alert Tuning Agent: Cut Alert Fatigue by Mining Your Alert History

Build an alert tuning AI agent that cuts alert fatigue: mine Prometheus and Alertmanager history for noisy alerts and ship threshold fixes as reviewable PRs.

devopsSep 7, 20268 min read

Grafana MCP Server: Safe Dashboard and Datasource Access for AI Agents

Set up the Grafana MCP server for AI agents safely: Viewer-only service account, disabled write toolsets, and context limits for dashboards and datasources.

devopsSep 6, 202610 min read

Kubernetes DNS Resolution Failures: How to Debug and Fix CoreDNS Issues

Kubernetes DNS resolution failures break the whole cluster. Debug CoreDNS crashes, ndots:5 query storms, conntrack races, and NetworkPolicy blocks — with fixes.

devopsSep 5, 20268 min read

Build a Kafka MCP Server: Safe Consumer Lag and Topic Diagnostics for AI Agents

Build a Kafka MCP server so AI agents can check consumer lag, topic health, and broker status read-only — Describe-only ACLs, no payloads, no offset commits.

devopsSep 4, 20269 min read

EKS Spot Instances with Karpenter: Interruption Handling That Doesn't Page You

Run EKS spot instances with Karpenter: NodePool config, SQS interruption handling, PDBs, and on-demand fallback to cut node cost 60-70% without pages.

devopsSep 3, 20269 min read

Kubernetes FailedMount and FailedAttachVolume: How to Debug and Fix It

FailedMount and FailedAttachVolume keep pods stuck in ContainerCreating. Debug attach vs mount stages, fix Multi-Attach errors, CSI drivers, and timeouts.

cloudSep 2, 202610 min read

Build an AWS Network Cost Agent: Explain NAT Gateway and Cross-AZ Spend with VPC Flow Logs

Build an AWS network cost agent that reads VPC Flow Logs to explain NAT gateway and cross-AZ data transfer costs, then proposes ranked fixes — read-only.

cloudSep 1, 202612 min read

Build an AWS Waste Reclamation Agent: Delete Unattached EBS Volumes, Idle Load Balancers, and Orphaned Snapshots Safely

Build an AWS waste reclamation agent that finds unattached EBS volumes, idle load balancers and orphaned snapshots, deleting only what a human tags approved.

devopsAug 31, 20269 min read

Kubernetes CreateContainerConfigError: How to Debug and Fix It

CreateContainerConfigError means a missing ConfigMap or Secret. Find the exact missing key, fix envFrom and valueFrom refs, and prevent it in CI and GitOps.

cloudAug 30, 202611 min read

Build an AWS Cost Anomaly Agent: Explain Bill Spikes with Cost Explorer and CloudTrail

Build an AWS cost anomaly agent that reads Cost Explorer anomalies, breaks down the spike by usage type, and correlates it with CloudTrail changes — read-only.

devopsAug 29, 202611 min read

Build a Backstage MCP Server: Service Ownership, On-Call, and Blast Radius for AI Incident Agents

Build a Backstage MCP server so AI incident agents can look up service ownership, on-call, and blast radius from the catalog — read-only and injection-safe.

devopsAug 28, 202612 min read

Build a Network Policy Agent: Generate Kubernetes NetworkPolicies from Hubble Flows Without Breaking Prod

Build a Kubernetes network policy agent: turn Hubble flow logs into least-privilege NetworkPolicies, LLM-triaged, linted, and shadow-tested in audit mode.

sreAug 27, 202611 min read

Build a Chaos Engineering Agent: LLM-Proposed Chaos Mesh Experiments, Gated by SLOs

Build a chaos engineering AI agent for Kubernetes: reads topology and SLOs, proposes Chaos Mesh experiments from a fixed catalog; a burn-rate watchdog aborts.

sreAug 26, 202611 min read

Build a Kubernetes Capacity Planning Agent: Forecast Node, PVC, and Quota Exhaustion Before Pods Go Pending

Build a Kubernetes capacity planning AI agent: predict_linear rules for PVC, node pool, and quota headroom, read-only tools, and a gated PR to raise limits.

devopsAug 25, 202611 min read

Build an Argo CD MCP Server: Safe GitOps Status, Diff, and Rollback for AI Agents

Build an Argo CD MCP server so AI agents can read app health, sync status, and drift diffs safely — plus a gated rollback tool, RBAC policy, and sync windows.

devopsAug 24, 20269 min read

Kubernetes Node NotReady: How to Debug and Fix It

Kubernetes node NotReady? Read the real reason from node conditions, fix kubelet, containerd, CNI, and cert failures, and recover the pods stranded on it.

devopsAug 23, 20269 min read

Kubernetes RBAC for AI Agents: Least-Privilege ServiceAccounts Done Right

Kubernetes RBAC for AI agents: least-privilege ServiceAccounts for LLM ops tools — scoped Roles, short-lived tokens, audit logging, and Kyverno guardrails.

sreAug 22, 20268 min read

Build an On-Call Handoff Agent: Shift Summaries That Don't Drop Context

Build an on-call handoff AI agent: pull alerts, silences, SLO burn, and deploys into a structured shift summary with schemas, prompts, and honest guardrails.

devopsAug 21, 20269 min read

Build a Postgres MCP Server: Safe Database Diagnostics for AI Agents

Build a Postgres MCP server for safe database diagnostics by AI agents — read-only roles, pg_stat_activity, lock chains, statement timeouts, and PII guardrails.

devopsAug 20, 20268 min read

Build a Tempo MCP Server: Safe Trace Analysis for AI Agents

Build a Tempo MCP server for safe read-only trace search by AI agents — TraceQL guardrails, span collapsing, latency breakdowns, and injection defenses.

devopsAug 19, 20268 min read

Kubernetes Pod Evicted: How to Debug and Fix It

Kubernetes pod evicted? Trace node-pressure evictions to ephemeral-storage, memory, or disk, fix requests and limits, and clean up Evicted pods safely.

devopsAug 17, 20267 min read

The MCP Gateway Pattern: One Front Door for All Your Ops AI Agents

Build an MCP gateway for your DevOps AI agents — aggregate Kubernetes, Prometheus, and Loki MCP servers behind one door with allowlists, auth, and audit logs.

sreAug 16, 20269 min read

Build an Error Budget Agent: SLO Burn-Rate Triage That Ends the Spreadsheet

Build an error budget AI agent: multi-window SLO burn-rate math in PromQL, LLM attribution of what burned the budget, and a gated deploy-freeze recommendation.

devopsAug 15, 20268 min read

Build a Kubernetes Upgrade Readiness Agent: Deprecated APIs, Add-on Checks, and a Migration PR

Build a Kubernetes upgrade readiness agent: scan deprecated APIs with kubent and Pluto, check add-on compat, and open a migration PR before you upgrade.

devopsAug 14, 20269 min read

Build a Terraform Drift Detection Agent: Catch Manual Changes Before They Bite

Build a Terraform drift detection agent: scheduled refresh-only plans, deterministic drift rules, LLM-ranked findings, and safe remediation PRs — no auto-apply.

devopsAug 13, 20269 min read

Build a CVE Triage Agent: Turn Noisy Container Scans into a Ranked Fix List

Build a CVE triage agent for container scanning: turn noisy Trivy output into a ranked fix list using KEV, EPSS, and runtime context, with a safe CI gate.

devopsAug 12, 20268 min read

LLM Inference Cost on Kubernetes: How to Cut Your Cost per Token

Cut LLM inference cost on Kubernetes: measure cost per token with vLLM and Prometheus, raise GPU utilization with batching, autoscale on queue depth with KEDA.

devopsAug 11, 20269 min read

Build a Canary Analysis Agent: An LLM Judge for Argo Rollouts Promotions

Build a canary analysis AI agent for Argo Rollouts: an LLM judge that compares canary vs stable metrics and logs, then gates promotion via the job provider.

devopsAug 10, 20268 min read

Shadow Mode for DevOps AI Agents: Earn Trust on Real Incidents Before Write Access

Run your DevOps AI agent in shadow mode: log proposed fixes, score agreement against what on-call actually did, and set promotion criteria for write access.

devopsAug 9, 20268 min read

Kubernetes Cost Allocation Per Namespace: Showback That Teams Actually Trust

Kubernetes cost allocation per namespace, done right: OpenCost setup, idle and shared cost policy, label enforcement, and an automated showback report.

devopsAug 8, 20268 min read

Secrets Management for DevOps AI Agents: Credentials Without Leaks

Secrets management for DevOps AI agents: short-lived Vault credentials, OIDC workload identity, scoped tokens, and keeping keys out of the context window.

devopsAug 7, 20268 min read

GitOps for AI Agents: Make Your Agent Open Pull Requests, Not Run kubectl

Make your DevOps AI agent open GitOps pull requests instead of running kubectl: a PR tool schema, CI policy gates, CODEOWNERS approval, and Argo CD as executor.

sreAug 6, 20269 min read

Incident Memory for On-Call AI Agents: Stop Re-Diagnosing the Same Outage

Build persistent incident memory for on-call AI agents: a SQLite-plus-embeddings store, a recall tool, and guardrails against stale or poisoned memories.

devopsAug 5, 20268 min read

Kubernetes Pod Stuck in Terminating: How to Debug and Fix It

A hands-on fix for a Kubernetes pod stuck in Terminating: find blocking finalizers, dead nodes, and hung preStop hooks, and learn when --force is safe.

sreAug 4, 20269 min read

Build an AI Postmortem Agent: From Raw Incident Timeline to Blameless Draft

Build an AI postmortem agent: assemble the incident timeline from Alertmanager, deploys, and Slack, then draft a blameless postmortem a human reviews.

devopsAug 3, 20269 min read

Build an Alertmanager MCP Server: Let AI Agents Triage and Silence Alerts Safely

Build an Alertmanager MCP server so an AI agent can triage alerts and create bounded silences — TTL caps, matcher rules, and audit trails that hold in prod.

devopsAug 2, 20269 min read

Build a CI Failure Triage Agent: Auto-Diagnose Failing GitHub Actions Runs

Build a CI failure triage agent for GitHub Actions: read failed job logs, classify flaky vs real failures, comment the diagnosis on the PR, retry safely.

devopsAug 1, 20268 min read

OpenCost vs Kubecost: Which Kubernetes Cost Tool Should You Run?

OpenCost vs Kubecost compared hands-on: Helm installs, allocation APIs, PromQL cost metrics, free-tier limits, and which Kubernetes cost tool to run in 2026.

devopsJul 31, 20268 min read

Argo Rollouts Progressive Delivery: Canary and Blue-Green on Kubernetes

Argo Rollouts progressive delivery guide: canary and blue-green on Kubernetes with AnalysisTemplates, Prometheus-gated promotion, and instant rollback.

devopsJul 30, 20269 min read

AI Runbook Automation: Turn Markdown Runbooks into Safe Agent Tools

AI runbook automation the safe way: convert markdown runbooks into typed agent tools with guardrails, approval gates, and verification a model can't skip.

devopsJul 29, 20266 min read

Graphify Review: I Ran This Knowledge-Graph Skill on a Real Repo

A hands-on Graphify review: 202 files graphed in 4.8s on 74MB RAM, zero token cost, what the AST extraction nails, and the one limitation that decided it for me.

devopsJul 29, 20268 min read

Build a Loki MCP Server: Safe Log Search for AI Agents

Build a Loki MCP server for safe read-only log search by AI agents — LogQL guardrails, line caps, pattern collapsing, and prompt-injection defenses that hold.

devopsJul 28, 20269 min read

What a DevOps AI Agent Costs to Run: Token Economics, Caching, and Model Routing

What a DevOps AI agent really costs: where tokens go in the loop, prompt caching math, model routing, tool-output limits, and cost per resolved incident.

devopsJul 27, 20269 min read

Human-in-the-Loop Approval Gates for DevOps AI Agents: Let It Fix Prod, After You Say Yes

Build a human-in-the-loop approval gate so a DevOps AI agent can propose a prod fix, show the diff in Slack, and only execute after a signed human yes.

devopsJul 26, 20267 min read

Build a Prometheus MCP Server: Safe Read-Only PromQL for AI Agents

Give an AI agent read-only PromQL access with an MCP server — query cost caps, step floors, result truncation, and hardening that keeps it out of your write path.

devopsJul 25, 20267 min read

Karpenter vs Cluster Autoscaler: Which Cuts EKS Node Cost More?

Karpenter vs Cluster Autoscaler compared on node cost, speed, and spot handling. Real configs, bin-packing math, and when to pick each on EKS in 2026.

devopsJul 24, 20268 min read

Prompt Injection in DevOps AI Agents: Defending Agents That Read Logs, PRs, and Alerts

DevOps AI agents ingest untrusted logs, PR bodies, and alert payloads — prime prompt injection targets. A practical guide to defending ops agents in production.

devopsJul 24, 20268 min read

Build a Terraform Plan Review Agent: Catch Risky Changes in CI Before Merge

Wire an LLM agent into CI that reads your terraform plan JSON, flags destroys and IAM widening, comments on the PR, and blocks merge on high-risk changes.

devopsJul 23, 20267 min read

Observability for DevOps AI Agents: Trace Tool Calls, Tokens, and Runaway Loops

Run an LLM ops agent blind and every 3 a.m. action is a mystery. Instrument agent observability with OpenTelemetry: trace tool calls, tokens, cost, and loops.

devopsJul 22, 20267 min read

Build a FinOps AI Agent: Autonomous Kubernetes Cost Optimization with Guardrails

Wire an LLM agent to OpenCost and kubectl to find idle, over-provisioned workloads, then propose rightsizing as a GitOps PR — read-only, with human-gated writes.

sreJul 21, 20267 min read

Context Engineering for On-Call AI Agents: What to Feed an Incident Agent

An on-call AI agent is only as good as its context. Learn to engineer the window—retrieve runbooks, deploys, and past incidents, budget tokens, and write memory back.

devopsJul 20, 20266 min read

The Agent Harness as Infrastructure: Least-Privilege, Guardrails, and Blast Radius

Before you loop an AI agent, engineer its harness like infrastructure: least-privilege permissions, guardrails-as-code, and blast-radius isolation for prod.

devopsJul 20, 20268 min read

Evals for DevOps AI Agents: Test Your Ops Agent Before It Touches Prod

Before trusting an LLM ops agent in prod, build an eval harness: golden incident scenarios, tool-call scoring, safety gates, and a CI regression gate.

devopsJul 19, 20268 min read

Build a Kubernetes MCP Server: Safe kubectl Access for AI Agents

Give an LLM agent real kubectl access without wrecking prod. Build a Kubernetes MCP server with an allowlist, dry-run, namespace scoping, and approval gates.

devopsJul 19, 20267 min read

Loop Engineering for DevOps: From Prompting to Supervised Agent Loops

Stop prompting, start looping. Apply agent loop engineering to DevOps — PR babysitting, drift remediation, cost sweeps — with guardrails that keep prod safe.

devopsJul 18, 20268 min read

Kyverno Policy-as-Code: Enforce Kubernetes Guardrails Without Rego

A hands-on Kyverno policy-as-code guide: install it, write validate/mutate/generate policies, run audit vs enforce, and test policies in CI before they block prod.

devopsJul 17, 20268 min read

DORA Metrics: How to Measure Them with GitHub Actions and Prometheus

Instrument the four DORA metrics — deployment frequency, lead time, change failure rate, MTTR — with GitHub Actions, Prometheus, and Grafana. Real configs.

devopsJul 17, 20268 min read

Multi-Agent LLM Analysis for DevOps: A Panel of Experts That Actually Improves Decisions

Build a multi-agent LLM panel for DevOps decisions like rollback and root-cause: orchestrator code, confidence-weighted synthesis, and when debate helps.

devopsJul 16, 202610 min read

Kubernetes Pod Stuck in Pending (FailedScheduling): How to Fix It

A hands-on Pending pod playbook: read the FailedScheduling reason, fix insufficient CPU/memory, taints, node affinity, and unbound PVCs so the scheduler places it.

devopsJul 15, 20269 min read

Kubernetes OOMKilled (Exit Code 137): How to Debug and Fix It

A hands-on OOMKilled playbook: confirm exit code 137, tell a too-low limit from a memory leak, right-size requests/limits, and stop pods getting evicted.

devopsJul 14, 202610 min read

Kubernetes CrashLoopBackOff: How to Debug and Fix It (2026)

A step-by-step CrashLoopBackOff playbook: read crash logs, decode exit codes 1/137/127, and fix OOMKills, bad config, failing probes, and dependencies.

devopsJul 13, 20268 min read

Kubernetes ImagePullBackOff: How to Debug and Fix It (2026)

A step-by-step ImagePullBackOff and ErrImagePull playbook: read the pull error, fix wrong tags, registry auth, Docker Hub rate limits, and node network issues.

infrastructureJul 12, 202611 min read

Kubernetes Liveness, Readiness, and Startup Probes: A Practical Guide

A hands-on guide to Kubernetes health probes: liveness vs readiness vs startup, real YAML, tuning timeouts, and fixing CrashLoopBackOff from probe misconfiguration.

devopsJul 11, 202610 min read

Argo CD 3.5 Supply Chain Security: Enable Signed GitOps and Internal mTLS

A hands-on guide to Argo CD 3.5's Source Integrity and repo-server mTLS. Learn how to enforce signed GitOps commits, harden internal traffic, and compare with Flux.

infrastructureJul 10, 202610 min read

How to Decode a JWT Token: A DevOps Engineer's Guide

Learn how to decode JWT tokens with base64url, Python (PyJWT), and Node.js. Debug 401s, inspect claims, and understand why decoding is not verifying.

devopsJul 8, 202612 min read

FinOps Best Practices: Cloud Financial Management for Engineers

FinOps for cloud cost management: Kubernetes cost allocation with Kubecost and OpenCost, showback/chargeback, tagging, and commitment discounts.

devopsJul 7, 20268 min read

Dagger CI/CD: The Future of Pipeline Development (Hands-On Tutorial)

Build CI/CD pipelines as code with Dagger. Containerized, cacheable, and portable pipelines that run the same locally and in CI. Complete guide with examples.

cloudJul 7, 202610 min read

How to Backtest a Trading Strategy in Python: A Practical Backtrader Guide (2026)

A hands-on guide to backtesting trading strategies in Python with Backtrader. Real code for data feeds, indicators, order logic, and performance metrics like Sharpe and drawdown.

devopsJul 6, 20269 min read

SLO, SLI, SLA Explained: A Practical Guide with Real Examples

Demystifying SLOs, SLIs, and SLAs with real-world examples. Learn how to set error budgets, choose the right indicators, and implement SLO-based alerting.

devopsJul 5, 20268 min read

Platform Engineering Explained: Building an Internal Developer Platform

What is platform engineering and how to build an Internal Developer Platform. Golden paths, Backstage, DevEx metrics, and self-service infrastructure.

infrastructureJul 4, 20268 min read

Helm Chart Best Practices: Structure, Values, and Testing (2026)

Production Helm chart patterns for Kubernetes. Library charts, schema validation, helmfile, CI/CD integration with GitHub Actions.

devopsJul 3, 20269 min read

OpenTelemetry Distributed Tracing: From Zero to Production

Implement OpenTelemetry distributed tracing across microservices. Setup with OTLP collector, instrumentation for Node.js and Python, and export to Jaeger and Grafana Tempo.

sreJul 3, 202611 min read

SRE vs DevOps: Key Differences That Actually Matter (2026)

SRE and DevOps get conflated constantly. Here's a practitioner's breakdown of the real differences — philosophy, error budgets, toil, on-call, and when to use each.

devopsJul 2, 20266 min read

AWS Cost Optimization: 15 Proven Ways to Cut Your Cloud Bill

Practical AWS cost optimization strategies for engineers. Rightsize EC2, leverage Spot instances, optimize S3 storage, use Savings Plans, and implement FinOps.

devopsJul 1, 20269 min read

Ansible Automation: Complete Linux Server Management Tutorial

Automate Linux server configuration with Ansible. Playbooks, roles, variables, handlers, and real-world examples for web servers, databases, and monitoring.

cloudJun 30, 20267 min read

Kubernetes at Hyperscale: How AKS Automatic Powers OpenAI's 100,000-Node AI Infrastructure

Microsoft AKS just hit 100,000+ nodes powering OpenAI workloads. Inside the AKS Automatic architecture, node provisioning at hyperscale, and what it means for Kubernetes engineers.

devopsJun 30, 20269 min read

ArgoCD GitOps: Best Practices for Production Deployments

Deploy applications with ArgoCD using GitOps patterns. Learn App of Apps, sync policies, health checks, secrets management, and progressive delivery.

cloudJun 30, 20267 min read

Google OpenRL Brings Reinforcement Learning Fine-Tuning to Kubernetes Natively in 2026

Google's OpenRL framework lets you fine-tune AI models using Kubernetes-native reinforcement learning. A deep dive into the architecture, use cases, and what it means for MLOps.

devopsJun 30, 20269 min read

Harness AI Agents for DevOps: What They Do and How to Use Them (2026)

A practitioner's look at Harness AI agents for DevOps: what they actually automate in CI/CD, real workflow examples, pros and cons, and how they compare to alternatives in 2026.

devopsJun 30, 20266 min read

Harness Autonomous Worker Agents — AI-Driven CI/CD Pipelines Are Here in 2026

Harness launches autonomous worker agents that self-heal, self-scale, and self-optimize CI/CD pipelines. Breaking down the June 2026 announcement and what it means for DevOps teams.

devopsJun 29, 20267 min read

Nginx Reverse Proxy: Performance Tuning and Advanced Configuration

Optimize Nginx as a reverse proxy with worker tuning, caching, compression, keepalive, and buffer settings. Production-ready configuration included.

devopsJun 29, 20266 min read

5 Free Online Tools untuk DevOps Engineer (Timestamp, UUID, JWT, Hash, JSON)

Kenali 5 tools online gratis untuk DevOps engineer: timestamp converter, UUID generator, JWT decoder, hash generator, dan JSON/YAML validator. Praktis, client-side, tanpa login.

devopsJun 29, 20266 min read

Docker Multi-Stage Build: Panduan Lengkap untuk Pemula (2026)

Belajar Docker multi-stage build dari nol — perkecil image 10x, hapus dependencies build, dan deploy container ringan ke production.

sreJun 29, 20267 min read

Error Budget: Panduan Lengkap SRE untuk Menghentikan Perang Fitur vs Keandalan

Pelajari apa itu error budget dalam SRE, cara menghitungnya dengan Prometheus, dan cara membangun kebijakan error budget yang menghentikan perang antara fitur dan keandalan. Panduan praktis bahasa Indonesia.

devopsJun 29, 20263 min read

Epoch Converter: Cara Konversi Timestamp ke Tanggal (dan Sebaliknya)

Panduan lengkap cara konversi epoch timestamp Unix ke tanggal biasa dan sebaliknya menggunakan tool gratis epoch converter di devtocash.com.

devopsJun 29, 20263 min read

Hash Generator Online: Generate MD5, SHA-1, SHA-256, SHA-512 dengan Cepat

Tool hash generator online gratis untuk generate MD5, SHA-1, SHA-256, dan SHA-512. Verifikasi integritas file, bandingkan checksum, dan generate hash untuk keamanan data.

devopsJun 29, 20263 min read

JSON Formatter Online: Rapikan & Validasi JSON dalam Sekejap

Tool JSON formatter gratis untuk merapikan, memformat, dan memvalidasi JSON. Cocok untuk developer, DevOps, dan SRE yang bekerja dengan API dan config file.

devopsJun 29, 20263 min read

JWT Decoder: Cara Decode & Inspeksi JSON Web Token Secara Online

Tool JWT decoder online gratis untuk decode, inspeksi, dan debugging JSON Web Token. Lihat header, payload, dan signature JWT tanpa perlu command line.

devopsJun 29, 20263 min read

UUID Generator: Generate UUID v4 & v7 Gratis untuk Development

Tool UUID generator online gratis untuk membuat UUID v4 (random) dan UUID v7 (timestamp-based). Cocok untuk developer yang butuh unique identifier untuk database, API, dan testing.

devopsJun 29, 20267 min read

Kubernetes RBAC Deep Dive

Kubernetes RBAC deep dive: ClusterRole vs Role, audit logging, service account hardening, and defense against privilege escalation — real YAML examples.

devopsJun 29, 202611 min read

SelfMem: One Memory Layer Across Every AI Assistant — Free & Open MCP Tool

SelfMem gives every AI assistant one memory layer — hybrid search, MCP-native, self-hostable. Review for DevOps & SRE engineer teams using AI agents.

sreJun 29, 20268 min read

SLI/SLO Implementation Guide with Prometheus & Grafana

SLI/SLO implementation with Prometheus recording rules, Grafana dashboards, burn rate alerts, and error budget policies — real YAML, real dashboards.

devopsJun 28, 20266 min read

Kubernetes Pod Autoscaling: HPA, VPA, and KEDA Explained

Master Kubernetes pod autoscaling with HPA, VPA, and KEDA. Real YAML configs and decision framework included.

infrastructureJun 28, 20265 min read

Ansible Automation Guide: Infrastructure as Code for SRE & DevOps in 2026

Production Ansible patterns — dynamic inventories for AWS and GCP, idempotent playbooks, AWX/Tower for self-service, and Ansible vs Terraform for configuration management.

devopsJun 28, 20267 min read

ArgoCD GitOps: Best Practices for Production Deployments in 2026

Production-proven ArgoCD patterns — App of Apps, multi-cluster management, secret handling with External Secrets Operator, health checks, and progressive delivery for GitOps at scale.

toolsJun 28, 20266 min read

Claude Proxy: Turn Your Claude Code CLI into an OpenAI-Compatible API Server

A zero-dependency Python proxy that wraps the local Claude Code CLI to expose an OpenAI-compatible HTTP API. Use your Claude Max subscription as a generic API backend for agents, IDE plugins, and SDKs.

devopsJun 28, 20265 min read

Dagger CI/CD: Complete Guide for DevOps Engineers in 2026

Learn Dagger — the programmable CI/CD engine that runs pipelines in containers. Dagger Functions, multi-language SDK, caching, and GitHub Actions integration for portable CI/CD.

sreJun 28, 202615 min read

eBPF Observability for SRE: The End of Sidecars in 2026

eBPF observability for SRE in 2026: replacing sidecars and agents. Hands-on Cilium Hubble, Tetragon, and zero-instrumentation monitoring on Kubernetes.

cloudJun 28, 20266 min read

FinOps for Kubernetes: Practical Cost Optimization in 2026

Cut your Kubernetes bill by 40-60% with FinOps best practices — Kubecost, spot instances, right-sizing, and workload bin packing with real kubectl commands and YAML examples.

devopsJun 28, 202617 min read

Kubernetes LLM Inference: Deploy and Scale Open-Source LLMs in 2026

Learn how to deploy and scale open-source LLMs like Llama 4, Mistral, and DeepSeek on Kubernetes with vLLM, GPU sharing, autoscaling, and cost optimization strategies for 2026.

sreJun 28, 20264 min read

OpenTelemetry Tracing: Complete Setup Guide for DevOps & SRE in 2026

Set up OpenTelemetry distributed tracing with auto-instrumentation for Go, Python, Node.js apps — OTLP exports to Jaeger, Tempo, and Grafana. Zero-code instrument with real YAML and Docker examples.

platformJun 28, 20263 min read

Platform Engineering Guide 2026: Building Internal Developer Platforms That Work

Build an Internal Developer Platform with Backstage, Crossplane, and ArgoCD. Golden paths, self-service workflows, and DevEx metrics that reduce cognitive load for developers.

sreJun 28, 20264 min read

SLI vs SLO vs SLA: The Real SRE Guide with Examples in 2026

Practical SLO definition with Prometheus recording rules, error budget policies, and SLO-based alerting. Stop alerting on raw latency and start alerting on burnout rate with real YAML examples.

devopsJun 27, 20266 min read

Terraform Best Practices for Production Infrastructure (2026 Edition)

Production-ready Terraform patterns: state management, module structure, workspaces, drift detection, and CI/CD integration. Hard-won lessons from managing infrastructure at scale.

devopsJun 26, 20267 min read

Docker Compose for Development Environments: Best Practices 2026

Master Docker Compose for local development with hot reload, multi-service orchestration, debugging setup, and production parity. Complete guide for 2026.

sreJun 26, 202626 min read

AI Agents for SRE: Autonomous Incident Response in 2026

AI SRE agents are slashing MTTR by 70% in 2026. Learn how autonomous incident response works, compare tools like Aurora and Resolve.ai, and get a practical pilot guide.

sreJun 26, 202617 min read

AI-Powered Observability: The Future of SRE Monitoring in 2026

How AI and machine learning are transforming SRE observability — from predictive alerting and LLM-based log analysis to AI-integrated OpenTelemetry pipelines. Full hands-on guide.

sreJun 26, 202617 min read

Incident Management & Blameless Postmortem: SRE Guide 2026

Complete SRE guide to incident management, severity levels, blameless postmortems, and building a postmortem culture. Templates and playbook included.

sreJun 26, 202620 min read

OpenTelemetry Tutorial 2026: Complete Setup Guide for SRE & DevOps

Hands-on OpenTelemetry tutorial covering instrumentation, collector configuration, and distributed tracing setup for SRE and DevOps engineers in 2026.

devopsJun 26, 202614 min read

Platform Engineering 2.0 in 2026: How Internal Developer Platforms Are Eating DevOps

Platform Engineering is the fastest-growing DevOps trend of 2026. Learn how IDPs like Backstage, Port, and Cortex reduce cognitive load, the Platform as Product mindset, and how to build a platform that developers actually use.

devopsJun 25, 202610 min read

Production Monitoring with Prometheus + Grafana: Complete Setup Guide (2026)

Set up production-grade monitoring with Prometheus and Grafana. Step-by-step guide covering Node Exporter, AlertManager, dashboards, and alerting rules for your infrastructure.

sreJun 25, 202618 min read

Incident Management Runbook: The Complete SRE Template for 2026

A production-ready incident management runbook template for SRE and DevOps teams. Covers severity levels, roles, response lifecycle, automation, and a postmortem template you can copy today.

devopsJun 25, 202618 min read

Kubernetes Security Best Practices 2026

Kubernetes security guide 2026: RBAC, Pod Security Standards, network policies, image scanning, secrets management, and runtime defense — code examples.

sreJun 25, 202642 min read

Top 50 SRE Interview Questions and Answers 2026

Prepare for your SRE interview with 50 real questions covering SLIs, SLOs, error budgets, incident management, observability, Kubernetes, and automation — with concise answers from production experience.

devopsJun 24, 202610 min read

CI/CD Pipeline with GitHub Actions for Next.js on VPS

Build a complete CI/CD pipeline with GitHub Actions to automatically deploy your Next.js application to a VPS. Step-by-step tutorial with real code.

devopsJun 24, 202612 min read

GitHub Actions CI/CD: Deploy Next.js to VPS (2026)

Step-by-step tutorial to automate Next.js deployments to a VPS using GitHub Actions CI/CD pipeline with zero-downtime rollouts.

devopsJun 24, 20269 min read

Docker Multi-Stage Builds: Slash Your Image Size by 90%

Master Docker multi-stage builds to shrink image sizes from 1GB to under 100MB. Real examples for Go, Node.js, and Python with production best practices.

devopsJun 24, 20269 min read

Error Budgets: Stop Wasting Your SRE Team's Time

Learn error budget calculation, implementation, and policies for SRE teams. Practical guide with Prometheus burn rate alerts and real examples.

sreJun 24, 202616 min read

SLI vs SLO vs SLA: Real SRE Guide with Examples

Service Level Indicators, Objectives, and Agreements explained with real metrics, Prometheus queries, and production examples. No theory — just what works.

sreJun 24, 202614 min read

SRE vs DevOps vs Platform Engineering: What's the Difference in 2026?

Site Reliability Engineering, DevOps, and Platform Engineering — three overlapping disciplines with distinct missions. A practical breakdown for engineers in 2026.

sreJun 24, 202613 min read

SRE vs DevOps vs Platform Engineering: What's the Difference in 2026?

Site Reliability Engineering, DevOps, and Platform Engineering — three overlapping disciplines with distinct missions. A practical breakdown for engineers in 2026.

devopsApr 15, 20268 min read

CI/CD Pipeline With GitHub Actions: The Complete Production Setup

Build a production-grade CI/CD pipeline with GitHub Actions from scratch. Includes Docker builds, security scanning, staging/prod deployments, and rollback strategies.

careerApr 14, 20268 min read

DevOps Engineer Salary in 2026: Country-by-Country Breakdown

Real DevOps salary data for 2026 across 15 countries. Includes remote pay rates, how to negotiate, and the specializations that command the highest salaries.

tradingApr 13, 20268 min read

The Moving Average Strategy That Works in Any Market (With Real Setups)

A practical moving average trading strategy used by professional traders. Works on stocks, crypto, and forex. Includes entry rules, stop-loss placement, and real examples.

tradingApr 12, 20268 min read

IHSG Investing Guide: How to Pick Indonesian Stocks as a Developer

A systematic framework for investing in Indonesian stocks (IDX). How I analyze IHSG stocks using fundamentals, technicals, and sector rotation — built by an engineer, for engineers.

devopsApr 11, 20266 min read

10 Kubernetes Mistakes That Cost Companies Millions (And How to Fix Them)

Real Kubernetes misconfigurations I've seen destroy uptime and budgets at scale. Avoid these 10 mistakes and save your team thousands per month.

incomeApr 10, 20268 min read

Upwork vs Toptal vs Direct Clients: Where to Find $150/hr Dev Work in 2026

Honest comparison of every freelance platform for developers. Real rates, acceptance rates, fees, and which platform actually earns you the most after cuts.

devopsApr 9, 20269 min read

PostgreSQL Performance Tuning: Fix Slow Queries in Production Without Downtime

The exact commands to diagnose and fix slow PostgreSQL queries. Real examples from production databases handling millions of rows — no downtime required.

tradingApr 8, 20268 min read

Options Trading Basics: A Developer's Guide to Calls, Puts, and Greeks

Options explained like a software engineer: calls/puts as if/else logic, Greeks as partial derivatives, and why most retail traders lose money (and how to avoid it).

devopsApr 7, 20266 min read

AWS Lambda vs Containers: Real Cost Comparison Nobody Shows You

Actual dollar numbers: when Lambda is cheaper, when containers win, and the hidden costs that flip the math. Includes calculator examples at 3 traffic levels.

devopsApr 4, 20267 min read

CI/CD Pipeline With GitHub Actions: From Zero to Production in 30 Minutes

A production-ready GitHub Actions CI/CD pipeline that builds, tests, and deploys Docker apps automatically. Real YAML, real patterns, zero fluff.

tradingApr 4, 20267 min read

How Developers Can Build Passive Income with Dividend Stocks and DCA

The exact DCA strategy I use to invest in US dividend stocks as a software engineer — with real numbers, my current portfolio allocation, and how I turned $500/mo into a growing passive income stream.

incomeApr 4, 20266 min read

DevOps Freelance Rates in 2026: What to Charge and How to Stop Underpricing Yourself

Real rate data from DevOps freelancers earning $150–350/hr. How to set your rate, what clients actually pay, and the niches that command the highest fees.

devopsApr 4, 20267 min read

Linux Performance Tuning: 10 Commands Every DevOps Engineer Must Know

The exact Linux commands I use daily to diagnose slow servers, identify bottlenecks, and tune performance in production — with real examples and what the output actually means.

devopsApr 4, 20266 min read

Nginx Performance Tuning: How I Handle 100K Requests/Second on a $40/mo Server

The exact Nginx configuration tweaks that took my servers from 8K to 100K req/s without upgrading hardware. Real configs, real benchmarks.

tradingApr 4, 20268 min read

Position Sizing: The Formula Every Trader Must Know Before Entering a Trade

Most traders blow up their accounts not because they pick bad stocks — but because they size positions wrong. Here's the exact position sizing formula that protects your capital.

devopsApr 4, 20269 min read

Redis Caching Patterns That Slash AWS Costs: A Production SRE Guide

The 6 Redis caching patterns I use to cut AWS RDS costs by 40-60% in high-traffic systems — with real configs, Python examples, and when to use each one.

tradingApr 4, 20267 min read

Swing Trading for Engineers: A Systematic Approach That Doesn't Require Watching Charts All Day

How I built a rules-based swing trading system as a full-time engineer. Entry signals, position sizing, stop-loss rules, and the exact tools I use.

devopsMar 27, 20266 min read

Zero-Downtime Deployments with GitHub Actions and Kubernetes

The exact GitHub Actions workflow I use for zero-downtime blue/green deployments to Kubernetes — with rollback in under 60 seconds.

devopsMar 26, 20267 min read

Production Kubernetes Monitoring: Prometheus + Grafana Setup That Actually Works

The exact Prometheus and Grafana configuration I use to monitor Kubernetes clusters handling millions of requests per day — with the alert rules that catch issues before users notice.

devopsMar 25, 20269 min read

5 Terraform Patterns That Cut My AWS Bill by 40%

Real infrastructure-as-code patterns I use in production that reduced monthly AWS costs by $8,000 without sacrificing reliability or performance.

devopsMar 24, 20269 min read

Docker Compose vs Kubernetes: When to Use What (2026 Guide)

A practical breakdown of Docker Compose vs Kubernetes — when to use each, real cost differences, and the decision framework I use for production deployments.

devopsMar 18, 20268 min read

How I Audit and Fix SEO Issues on a Next.js Blog (Real Checklist From a Live Site)

A practical walkthrough of auditing SEO on a Next.js 14 blog — fixing dependency CVEs, configuring Vercel env vars, custom domain DNS, and a full on-page SEO review checklist.

tradingMar 18, 20268 min read

How to Automate Your Trading Strategy with Python: A Step-by-Step Guide for 2026

Learn how to build a fully automated trading bot in Python — from strategy logic to live execution. Real code, real results, zero fluff.

devopsMar 17, 20266 min read

AI-Powered DevOps: The 5 Ways Engineers Are Turning AI Skills Into $5K–$20K/Month in 2026

Platform engineering and AI are reshaping DevOps in 2026. Here's exactly how senior engineers are monetizing these skills through freelancing, consulting, and digital products.

tradingMar 12, 20267 min read

Bitcoin Technical Analysis: The 5 Setups I Use to Trade BTC Consistently

My exact technical analysis framework for Bitcoin — the chart patterns, indicators, and risk management rules I use to generate consistent profits in crypto markets.

careerMar 11, 20268 min read

DevOps Engineer Salary vs. Side Income: How I Make More Trading Than at My Day Job

My honest breakdown of DevOps engineer compensation in 2026, plus the side income streams I've built — including trading profits that now exceed my salary.

devopsMar 10, 20269 min read

Kubernetes Cost Optimization: How I Cut Cloud Bills by 60% Without Sacrificing Uptime

Practical techniques I've used across dozens of production clusters to slash Kubernetes costs — from right-sizing nodes to Spot instances and namespace-level budgets.