Fredric News

Tag: SystemOps

  • Cloud Monitoring Compare: Prometheus,

    💡 Cloud Monitoring Compare: Prometheus, — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Cloud Monitoring Compare: Prometheus,. Stack Prometheus+Grafana VS Telegraf+InfluxDB+Chronograf VS StatsD+Graphite+Grafana VS VictoriaMetrics+Grafana combination Metric collection method Advantages Cons Prometheus + Grafana Server Pull method High performance, scalability, flexibility, strong community support, and rich visualization options. Default data…

  • OpenStack Cloud Archi: Keystone, Nova

    💡 OpenStack Cloud Archi: Keystone, Nova — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for OpenStack Cloud Archi: Keystone, Nova. Frontend Common Tools SSR Extends nuxt State Management pinia vuex SSR Extends Next State Management zustand redux Backend express quarkus micronaut @doc/lang/golang no Framework Python fastapi Rust Full-stack svelte Features 🚀…

  • Adobe Creative Cloud Tuning on macOS

    💡 Adobe Creative Cloud Tuning on macOS — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Adobe Creative Cloud Tuning on macOS. 🔗 https://helmfile.readthedocs.io/en/latest/ Installation required kube-proxy:8080 yaml Copy k proxy –port=8080 & macOS bash Copy brew install helmfile amd64 bash Copy LATEST=$(curl -sL https://github.com/helmfile/helmfile/releases/latest \ | grep -oP ‘tag/\K[v0-9\.]+’ |…

  • 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);…

  • Enterprise Cloud Mgmt Platform (CMP)

    💡 Enterprise Cloud Mgmt Platform (CMP) — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Enterprise Cloud Mgmt Platform (CMP). TLS Sample Show Get certificate information from specific TLS port bash Copy ip= port= openssl s_client -connect ${ip}:${port} -showcerts Main References and Guidelines (NOTE) Even if the CA certificate expires, the…

  • 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 “#…

  • Cert-Manager Helm Setup & Let’s Encrypt

    💡 Cert-Manager Helm Setup & Let’s Encrypt — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Cert-Manager Helm Setup & Let’s Encrypt. Installation References and Guidelines (NOTE) You can easily add or update TLS for k8s applications using a CA key pair or an external DNS (cloud provider, etc.). In a…

  • 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…