DevOps meets AI agents
Ship with Kubernetes & Docker.
Automate with Claude Code, ChatGPT & n8n.
Original guides that fix real errors, cheat sheets you keep open, and step-by-step labs for the tools people are actually using in 2026.
- 26 original guides
- 0 copied articles
- Every command tested
Pick a topic
Ten tracks. Each circle is a living hub that grows every week.
AI Agents
Agents, sub-agents, MCP, workflows
13 guides
Claude Code
Slash commands, hooks, CLAUDE.md
4 guides
ChatGPT
Prompts, Projects, custom GPTs
2 guides
n8n
Automations and AI agent nodes
2 guides
Kubernetes
kubectl, errors, local clusters
7 guides
Docker
CLI, Dockerfile, Compose
5 guides
Gemini
Gems, Deep Research, API
1 guide
Perplexity
Research that cites sources
1 guide
HeyGen
Avatar videos from a script
1 guide
Helm
Charts vs Kustomize
1 guide
Hot in 2026
What developers search for right now: agents, slash commands, workflows, and the clusters that run them.
Perplexity for technical research: modes, Projects, and the API
Use Perplexity Projects, citations, and the Agent API for technical research you can check against the source.
Read
First n8n workflow: Docker, a webhook, and an AI Agent
Self-host n8n with Docker, then test a Webhook, If, and AI Agent workflow with curl before you publish it.
Read
n8n vs Make vs Zapier: executions, credits, and tasks
Compare n8n, Make, and Zapier on hosting, billing units, code, and errors so you pick the right automation tool.
Read
HeyGen avatar video from a script, including the v3 API
Create a HeyGen avatar video from a script in AI Studio, then generate the same clip with the verified v3 API.
Read
ChatGPT Prompting Cheat Sheet (2026): 25 patterns for DevOps
ChatGPT prompting cheat sheet: a five-part prompt, 25 DevOps patterns, Projects, memory, and desktop shortcuts.
Read
Custom GPTs Guide: instructions, knowledge, and an OpenAPI Action
Build a custom GPT with instructions, knowledge files, and an OpenAPI Action that reads a public API.
Read
Claude Code Subagents: .claude/agents files that keep the main chat clean
Define Claude Code subagents in .claude/agents with their own tools and model, and keep the main chat small.
Read
Claude Code Custom Slash Commands: .claude/commands with arguments
Create Claude Code slash commands in .claude/commands with arguments, tool grants, and six workflows you can paste.
Read
Claude Code Hooks: format, block, log, and test from settings.json
Add Claude Code hooks in settings.json to format code, block protected files, log shell commands, and run tests.
Read
Claude Code Cheat Sheet (2026): commands, flags, and memory files
Claude Code cheat sheet: install, slash commands, CLI flags, CLAUDE.md, and shortcuts you reuse daily.
Read
Perplexity for technical research: modes, Projects, and the API
Use Perplexity Projects, citations, and the Agent API for technical research you can check against the source.
Read
ChatGPT Prompting Cheat Sheet (2026): 25 patterns for DevOps
ChatGPT prompting cheat sheet: a five-part prompt, 25 DevOps patterns, Projects, memory, and desktop shortcuts.
Read
Custom GPTs Guide: instructions, knowledge, and an OpenAPI Action
Build a custom GPT with instructions, knowledge files, and an OpenAPI Action that reads a public API.
Read
Gemini tools cheat sheet: app, Workspace, API, and CLI
Gemini cheat sheet for Gems, Deep Research, Canvas, Workspace, the Python API, and Gemini CLI as of October 2026.
Read
First n8n workflow: Docker, a webhook, and an AI Agent
Self-host n8n with Docker, then test a Webhook, If, and AI Agent workflow with curl before you publish it.
Read
n8n vs Make vs Zapier: executions, credits, and tasks
Compare n8n, Make, and Zapier on hosting, billing units, code, and errors so you pick the right automation tool.
Read
Fix Pod Pending and FailedScheduling in Kubernetes: 6 common causes
Pod stuck in Pending or FailedScheduling? See why (CPU/memory shortage, node selectors, taints, PVC) and fix with exact commands.
Read
Fix ImagePullBackOff in Kubernetes: 6 causes and exact solutions
ImagePullBackOff means Kubernetes cannot pull your container image. See why (wrong tag, private registry, rate limit) and fix it with exact commands.
Read
Fix OOMKilled Pods in Kubernetes: diagnose and size memory limits
OOMKilled (exit code 137) means your pod ran out of memory. Learn to diagnose with kubectl top, set correct limits, and understand QoS classes.
Read
kind vs minikube vs k3d: pick a local Kubernetes cluster
kind vs minikube vs k3d: compare startup, memory, ingress, and local images to pick a local cluster.
Read
Fix CrashLoopBackOff in Kubernetes: root causes and solutions
CrashLoopBackOff means your pod keeps crashing. See 7 common causes and exact commands to diagnose and fix each one.
Read
Docker Compose vs Kubernetes: same app, different control plane
Docker Compose vs Kubernetes: map one web, API, and Postgres stack and choose the right runtime.
Read
Fix ‘permission denied while trying to connect to Docker daemon socket’
Docker socket permission denied error. See why (user not in docker group, rootless mode, WSL2) and fix with exact commands and security notes.
Read
Fix ‘exec format error’ in Docker: architecture and script issues
Docker 'exec format error' means the binary cannot run. Learn why (wrong architecture, shebang, CRLF, permissions) and fix with exact commands.
Read
Dockerfile Cheat Sheet (2026): every instruction and best practice
Complete Dockerfile reference for Docker 27+: all instructions, multi-stage builds, caching, .dockerignore, non-root users, and minimal images.
Read
Docker CLI Cheat Sheet (2026): commands you need for containers and images
Master Docker CLI: build, run, push images, manage containers, volumes, networks, system cleanup, and buildx for Docker 27+.
Read
Docker Compose Cheat Sheet (2026): every service key and CLI command
Complete Docker Compose v2 reference: services, volumes, networks, environment, healthchecks, override files, profiles, and every CLI command.
Read
Fix it fast
Symptom → ranked causes → exact commands. No scrolling through forum threads.
Fix Pod Pending and FailedScheduling in Kubernetes: 6 common causes
Pod stuck in Pending or FailedScheduling? See why (CPU/memory shortage, node selectors, taints, PVC) and fix with exact commands.
Read
Fix ImagePullBackOff in Kubernetes: 6 causes and exact solutions
ImagePullBackOff means Kubernetes cannot pull your container image. See why (wrong tag, private registry, rate limit) and fix it with exact commands.
Read
Fix OOMKilled Pods in Kubernetes: diagnose and size memory limits
OOMKilled (exit code 137) means your pod ran out of memory. Learn to diagnose with kubectl top, set correct limits, and understand QoS classes.
Read
Fix ‘permission denied while trying to connect to Docker daemon socket’
Docker socket permission denied error. See why (user not in docker group, rootless mode, WSL2) and fix with exact commands and security notes.
Read
Fix ‘exec format error’ in Docker: architecture and script issues
Docker 'exec format error' means the binary cannot run. Learn why (wrong architecture, shebang, CRLF, permissions) and fix with exact commands.
Read
Fix CrashLoopBackOff in Kubernetes: root causes and solutions
CrashLoopBackOff means your pod keeps crashing. See 7 common causes and exact commands to diagnose and fix each one.
Read
Cheat sheets
All →- ChatGPT Prompting Cheat Sheet (2026): 25 patterns for DevOps
- Gemini tools cheat sheet: app, Workspace, API, and CLI
- Claude Code Cheat Sheet (2026): commands, flags, and memory files
- Dockerfile Cheat Sheet (2026): every instruction and best practice
- kubectl Cheat Sheet (2026): every command you actually use
- Docker CLI Cheat Sheet (2026): commands you need for containers and images
Why KubPoint
01
Written, not scraped
Every guide is authored here, from official docs and real runs. Nothing is copied from other sites.
02
Verified before publish
Commands, flags and file paths are checked against current versions and reviewed a second time.
03
Built for 2026 workflows
Agents, MCP, hooks, sub-agents and automations, next to the containers and clusters they run on.