Fredric News

Tag: Guide

  • Red Hat Enterprise Linux (RHEL) ISO Download

    💡 Red Hat Enterprise Linux (RHEL) ISO Download — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Red Hat Enterprise Linux (RHEL) ISO Download. 🔗 https://developers.redhat.com/products/rhel/download ISO Select “Download RHEL at no-cost” Other version Select “Other RHEL version” qcow2 for Cloud Select “Virtual Guest image” Download when build is complete References…

  • Kubespray kube-vip Virtual IP Load Balancer

    💡 Kubespray kube-vip Virtual IP Load Balancer — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Kubespray kube-vip Virtual IP Load Balancer. VIP on LAN. Network ARP Pre-operation bash Copy apt install -y nmap #VIP 선정 ## host down IP 확인 ### 아래 결과중 x.x.x.0, x.x.x.1, x.x.x.255 (예약 주소) 제외하고 사용…

  • Antigravity CLI (agy): AI Agent Pair

    💡 Antigravity CLI (agy): AI Agent Pair — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Antigravity CLI (agy): AI Agent Pair. Subdocument Installation yaml Copy brew install antigravity-cli Settings MCP-servers Google Antigravity `bash Copy vi ~/.gemini/config/mcp_config.json { “mcpServers”: { “serverName”: { “command”: “path/to/executable”, “args”: [“–arg1”, “value1”], “env”: { “API_KEY”: “your-api-key”…

  • Kubernetes CoreDNS Corefile Customization

    💡 Kubernetes CoreDNS Corefile Customization — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Kubernetes CoreDNS Corefile Customization. Docs About resolv.conf References and Guidelines (NOTE) CoreDNS operation when using systemd-resolved on host HostNode: systemd-resolved is fixed as /etc/resolv.conf = 127.0.0.53loopback address. The actual resolve defined in /etc/systemd/resolved.conf is /var/run/systemd/resolve/resolv.conf. Kubelet: Default…

  • Linux NFS Server Setup: exports Sharing

    💡 Linux NFS Server Setup: exports Sharing — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Linux NFS Server Setup: exports Sharing. Setting the permissions of a directory to ‘777’ (read, write, execute for all) is generally considered unsafe as it allows anyone to access, modify, and execute files within that…

  • Kubernetes TLS Certificates & kubeadm certs

    💡 Kubernetes TLS Certificates & kubeadm certs — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Kubernetes TLS Certificates & kubeadm certs. Automated script – When renewing after expiration Attempt to bootstrap We will summarize the recovery sequence assuming the worst case scenario where bootstrapping is not set and both the…

  • Jenkins CI/CD Archi: Distributed Agent

    💡 Jenkins CI/CD Archi: Distributed Agent — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Jenkins CI/CD Archi: Distributed Agent. Operation Pipelines Credential Pipeline Sample Container Debugging groovy Copy // container내 breakPoint에서 아래 문구 추가 input message: “pod를 유지 중입니다. 디버깅 후 ‘Proceed’를 누르세요.” Scripting groovy Copy // 히스토리 제거 def…

  • jq CLI Sheet: JSON Data Filtering & Slicing

    💡 jq CLI Sheet: JSON Data Filtering & Slicing — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for jq CLI Sheet: JSON Data Filtering & Slicing. Exec main bash Copy #json to pretty $jsonSTDOUT | jq ” echo ‘\”foo\”:\”bar\”‘ | jq ” curl http://foo.bar.com/api/v1/test | jq ” #배열 내 특정 순번을…

  • Webpack Module Federation: React

    💡 Webpack Module Federation: React — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Webpack Module Federation: React. Common Enable dynamic loading: bootstrap.tsx ts Copy import React from ‘react’; import { createRoot } from ‘react-dom/client’; import App from ‘./App’; const container = document.getElementById(‘root’); if (container) { const root = createRoot(container); root.render(…

  • AI Agent Harness Engineering: ainit CLI

    💡 AI Agent Harness Engineering: ainit CLI — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for AI Agent Harness Engineering: ainit CLI. Overview Harness is an architectural tool that utilizes Claude Code’s agent team system to break down and coordinate complex tasks into specialized agent teams. When you say “Configure the…