Fredric News

Tag: ServerManagement

  • Linkerd Ultralight Service Mesh: mTLS

    💡 Linkerd Ultralight Service Mesh: mTLS — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Linkerd Ultralight Service Mesh: mTLS. Proxy 주입 방법 Automatic Proxy Injection inject Adding your services to Linkerd Injection (regeneration) through automatic generation of yaml txt Copy kubectl get -n $namespace deploy -o yaml | linkerd inject…

  • Colima Container Runtime on macOS: Docker

    💡 Colima Container Runtime on macOS: Docker — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Colima Container Runtime on macOS: Docker. Exec bash Copy #템플릿 지정 colima template #기존 vm 삭제 (템플릿내 insecure변경 적용) colima delete #정지 colima stop #시작 colima start #vm 접근 colima ssh Features TLS Trust required:…

  • openfortivpn CLI: Fortinet SSL-VPN Tunnel

    💡 openfortivpn CLI: Fortinet SSL-VPN Tunnel — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for openfortivpn CLI: Fortinet SSL-VPN Tunnel. 🔗 https://github.com/adrienverge/openfortivpn bash Copy # 패키지 설치 brew install openfortivpn # 계정정보를 이용하여 실행 sudo openfortivpn {{ 원격 게이트웨이 }}:{{ 포트 }} \ –username={{ 아이디 }} \ –password={{ 패스워드 }} #…

  • Spring Data JPA Specification: Dynamic

    💡 Spring Data JPA Specification: Dynamic — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Spring Data JPA Specification: Dynamic. References and Guidelines (NOTE) To prepare for maintenance difficulties when using JPA Creteria, frequently used syntax was prepared as a static method. (static method defined as generic grammar) java Copy /**…

  • Kubelet Daemon Ops: Resource Reservation

    💡 Kubelet Daemon Ops: Resource Reservation — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Kubelet Daemon Ops: Resource Reservation. Configurations Apply max-pod-pids, podPidsLimit Simultaneous operation of 3 worker nodes Recommended method: Modify config.yaml (based on Kubeadm) /etc/kubernetes/kubelet-config.yaml (if not present, then) /var/lib/kubelet/config.yaml How to edit: 1. Make sure the file…

  • Ubuntu Package Lock (dpkg/apt lock) Release

    💡 Ubuntu Package Lock (dpkg/apt lock) Release — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Ubuntu Package Lock (dpkg/apt lock) Release. If ssh login is not possible as root vi /etc/ssh/sshd_config bash Copy … PermitRootLogin yes #if no … Or passwd may not be set. Internet connection problem References and…

  • MicroK8s Lightweight K8s: Cert Renewal

    💡 MicroK8s Lightweight K8s: Cert Renewal — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for MicroK8s Lightweight K8s: Cert Renewal. DIRs certs (cluster certificates) /var/snap/microk8s/current/certs/ config (kubeconfig, etc.) /var/snap/microk8s/current/credentials/ Features Apply after adding SAN to CA certificate bash Copy # 인증서 템플릿 오픈 후 도메인 또는 IP 추가 sudo vi /var/snap/microk8s/current/certs/csr.conf.template…

  • Tailwind CSS Utility Classes Sheet

    💡 Tailwind CSS Utility Classes Sheet — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Tailwind CSS Utility Classes Sheet. Basic src/assets/tailwind.css css Copy @tailwind base; @tailwind components; @tailwind utilities; src/main.ts ts Copy import ‘./assets/tailwind.css’ Custom src/assets/tailwind.css css Copy @tailwind base; @tailwind components; @tailwind utilities; @layer components { .btn { @apply…

  • Open Policy Agent (OPA/Gatekeeper) K8s

    💡 Open Policy Agent (OPA/Gatekeeper) K8s — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Open Policy Agent (OPA/Gatekeeper) K8s. Language Rego Kubernetes Setup Installation Check Gatekeeper resource bash Copy export factor=gatekeeper kubectl get $(kubectl api-resources -o name | grep $factor | sed -z ‘s/[\n\r]/,/g’ | sed ‘s/.$//g’) -A

  • Terminal Text Effects (TTE): CLI Animation

    💡 Terminal Text Effects (TTE): CLI Animation — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Terminal Text Effects (TTE): CLI Animation. Installation bash Copy pip install terminaltexteffects Exec bash Copy cat $textfile | tte $theme themes txt Copy Available Effects beams Create beams which travel over the canvas illuminating the…