Fredric News

Tag: DeepDive

  • Adding Private Root CA Certificates to Linux

    💡 Adding Private Root CA Certificates to Linux — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Adding Private Root CA Certificates to Linux. Linux There are many ways to trust certificates on a Linux system, and may vary depending on the distribution you are using and your circumstances. Typically, you…

  • Java Collections Framework: List, Set, Map

    💡 Java Collections Framework: List, Set, Map — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Java Collections Framework: List, Set, Map. Subpage Spring Roadmap Java Collection Map Object → Map (Jackson.ObjectMapper) java Copy ObjectMapper objectMapper = new ObjectMapper(); Person person = new Person(12, “kim”); Map<String, Object> map = objectMapper.convertValue(person, Map.class);…

  • Spring Boot Actuator Remote Monitoring & JMX

    💡 Spring Boot Actuator Remote Monitoring & JMX — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Spring Boot Actuator Remote Monitoring & JMX. Subpage Installation Completion html Copy sudo curl -L https://raw.githubusercontent.com/docker/cli/master/contrib/completion/bash/docker -o /etc/bash_completion.d/docker Exec bash Copy # 컨테이너 실행 (포트포워딩) docker run -p ${hostPort}:${containerPort} {{ container image }} #…

  • Obsidian Knowledge Base: Markdown Links

    💡 Obsidian Knowledge Base: Markdown Links — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Obsidian Knowledge Base: Markdown Links. Obsidian – Github integration Github Create authentication token (classic) Create Private Repository Mac Terminal – Sync Repository or Clone bash Copy export repoURL=https://github.com/myeong-han/obsidian-repository.git export repoName=obsidian-repository mkdir $repoName cd $repoName echo “#…

  • Kubernetes etcd Distributed Key-Value Store

    💡 Kubernetes etcd Distributed Key-Value Store — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Kubernetes etcd Distributed Key-Value Store. References and Guidelines (NOTE) When etcd (3 node) clustering, the argument to etcd1 is –initial-cluster=etcd1. etcd2 with –initial-cluster=etcd1,etcd2. If etcd3 is configured with –initial-cluster=etcd1,etcd2,etcd3, can it be considered normally clustered? 💡…

  • Vue.js Core Archi: Virtual DOM & Reactivity

    💡 Vue.js Core Archi: Virtual DOM & Reactivity — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Vue.js Core Archi: Virtual DOM & Reactivity. Related pages Implements Using Operation sequence References and Guidelines (NOTE) Run on the client (browser) Create a Vue instance: Create a Vue instance with new Vue() in…

  • Advanced TypeScript Types: Generics, Unions

    💡 Advanced TypeScript Types: Generics, Unions — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Advanced TypeScript Types: Generics, Unions. Utility Type TypeScript’s **Utility Types** are powerful tools that help you transform already defined types or easily create new types. Frequently used utility types include Partial, Readonly, Pick, and Omit. Below…

  • Lightweight Dockerfile for CI/CD Pipeline

    💡 Lightweight Dockerfile for CI/CD Pipeline — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Lightweight Dockerfile for CI/CD Pipeline. Command bash Copy # Dockerfile 경로에서 docker build -t ${registry}/${image}:${tag} . Configuration COPY References and Guidelines (NOTE) The last argument value of COPY is Destination Directory. Everything before it is Source.…

  • Long-Term K8s Monitoring: Prometheus & Thanos

    💡 Long-Term K8s Monitoring: Prometheus & Thanos — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Long-Term K8s Monitoring: Prometheus & Thanos. 📑 Table of Contents Declarative Management Deployments Action Olds Samples TroubleShooting Setups Declarative Management Deployments thanos + kube-prometheus-stack Architecture & System Flow Diagram SVG 100% Pan & Zoom thanos…

  • Network Subnet Masking & CIDR Notation

    💡 Network Subnet Masking & CIDR Notation — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Network Subnet Masking & CIDR Notation. References and Guidelines (NOTE) CIDR (Classless Inter-Domain Routing) and subnet mask are similar concepts, but they are not exactly the same thing. Subnet Mask is a 32-bit (IPv4) or…