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Node Problem Detector Plugin Architecture Guide

Table of Contents

1. Introduction
2. Core Architecture
3. Plugin Types Overview
4. Quick Start Guide
5. Problem Daemon Plugins
   • System Log Monitor

• Custom Plugin Monitor

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#!/usr/bin/env bash

# Copyright The Helm Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#

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❯ pwd
/Users/dsrinivas/go/src/k8s.io/k8s.io/apps/k8s-io

❯ ./validate-nginx.sh
Extracting nginx.conf from ConfigMap...
Extracted nginx.conf to: /var/folders/2x/b5xl9skd2fl0l6tj54fjxh540000gp/T/tmp.tAdbqYOEXU/nginx.conf
Config file size:      380 lines
Validating nginx configuration using Docker...
/docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration
/docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/

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Kubernetes API Audit Log Analysis

Tools for analyzing Kubernetes API coverage from E2E test audit logs.

Copy the two python scripts from https://github.com/kubernetes/test-infra/tree/master/experiment/audit to your local directory

The example below uses kubernetes/kubernetes#133132 which is a PR to add a new DRA test to conformance.

Quick Start

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• To create the vm:

limactl start containerd-ubuntu.yaml --yes

• To get into the vm:

limactl shell --workdir /home/lima/containerd containerd-ubuntu

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package main

import (
	"fmt"
	"go/parser"
	"go/token"
	"os"
	"path/filepath"
	"sort"
	"strings"

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#!/bin/bash

cat > ubuntu-pod.json <<EOF
{
  "metadata": {
    "name": "ubuntu-sandbox",
    "namespace": "default",
    "attempt": 1,
    "uid": "ubuntu-pod-uid"
  },

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# Create a fresh new Ubuntu 24.04 VM and run the commands below:

# Install a bunch of stuff we need
apt update && apt -y install gperf sudo htop psutils build-essential pkg-config git wget unzip

# Clone what we need
git clone https://github.com/kubernetes/kubernetes $HOME/go/src/k8s.io/kubernetes
git clone https://github.com/containerd/containerd $HOME/go/src/github.com/containerd/containerd

# Latest golang

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#!/usr/bin/env bash

# Default repository and job name
REPO="google/cadvisor"
JOB_NAME="pull-cadvisor-e2e"

# Function to display usage
usage() {
    echo "Usage: $0 -p <PR_NUMBER> [-j <JOB_NAME>] [-s <SHA>] [-r <REPOSITORY>]"
    echo "Example: $0 -p 3615"

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Notes

Deploy using kubectl apply -f deepseek.yaml and watch the logs on the pod. When you see vllm listening on port 8000, use port forward so you can try running python query.py

kubectl port-forward svc/deepseek-r1-server 8000:8000

Links