Fredric News

Category: DevOps & AIOps

  • Karmada Multi-Cluster Control Plane Setup

    💡 Karmada Multi-Cluster Control Plane Setup — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Karmada Multi-Cluster Control Plane Setup. Install Karmada 🔗 https://karmada.io/docs/installation/ Install kubectl-karmada-cli using krew [https://karmada.io/docs/installation/install-cli-tools#install-kubectl-karmada](https://karmada.io/docs/installation/install-cli-tools#install-kubectl-karmada) bash Copy kubectl krew install karmada karmada install bash Copy # ~/.kube/config or kubeconfig 설정 파일 다중클러스터 구성 후 진행 #설치 kubectl…

  • Istio Service Mesh: Envoy Sidecars

    💡 Istio Service Mesh: Envoy Sidecars — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Istio Service Mesh: Envoy Sidecars. Istiod Istiod Service Port 15010: grpc-xds 15012: https-dns 15014: http-monitoring 443: https-webhook Envoy-Proxy Proxy Description UID information runAsUser: 1337: Do not redirect to envoy Proxy port definition 15001: Proxy port listening…

  • KubeSphere K8s Mgmt Platform & Multi-Tenant

    💡 KubeSphere K8s Mgmt Platform & Multi-Tenant — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for KubeSphere K8s Mgmt Platform & Multi-Tenant. 🔗 https://kubesphere.io/docs/v3.4/installing-on-kubernetes/on-prem-kubernetes/install-ks-on-linux-airgapped/ References kk. Install bash Copy curl -sfL https://get-kk.kubesphere.io | VERSION=v3.0.13 sh – sudo cp ./kk /usr/local/bin Closed network: image and registry preparation bash Copy curl -L -O…

  • OpenStack Nova/Neutron API 1000-Limit

    💡 OpenStack Nova/Neutron API 1000-Limit — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for OpenStack Nova/Neutron API 1000-Limit. Basis References and Guidelines (NOTE) In order to apply the config file, each daemon must be restarted, so there are many limitations in operating it in an operating cluster. Nova 🔗 https://docs.openstack.org/ocata/config-reference/compute/config-options.html max_limit…

  • Kubernetes API Resources: Group, Version

    💡 Kubernetes API Resources: Group, Version — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Kubernetes API Resources: Group, Version. API Resources Listed bash Copy NAME SHORTNAMES APIVERSION NAMESPACED KIND bindings v1 true Binding componentstatuses cs v1 false ComponentStatus configmaps cm v1 true ConfigMap endpoints ep v1 true Endpoints events ev…

  • etcd vs HashiCorp Vault: Distributed

    💡 etcd vs HashiCorp Vault: Distributed — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for etcd vs HashiCorp Vault: Distributed. References and Guidelines (NOTE) Both etcd and vault use the term raft. Do they mean the same thing? 💡 Both etcd and Vault use the term “Raft”, but they refer to…

  • Mounting CephFS & RBD Block Devices on

    💡 Mounting CephFS & RBD Block Devices on — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Mounting CephFS & RBD Block Devices on. 🔗 https://docs.ceph.com/en/latest/install/windows-basic-config/ Create Client Keyring PowerShell shell Copy cd C:\”Program Files”\Ceph\bin .\ceph-dokan.exe -c %HomePath%\ceph.conf -l x

  • ArgoCD CLI Sheet: GitOps Sync & Rollback

    💡 ArgoCD CLI Sheet: GitOps Sync & Rollback — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for ArgoCD CLI Sheet: GitOps Sync & Rollback. Installation mac bash Copy brew install argocd amd64 bash Copy curl -sSL -o argocd-linux-amd64 https://github.com/argoproj/argo-cd/releases/latest/download/argocd-linux-amd64 sudo install -m 555 argocd-linux-amd64 /usr/local/bin/argocd rm argocd-linux-amd64 Exec bash Copy #…

  • Kubernetes Control Plane TLS Certificates

    💡 Kubernetes Control Plane TLS Certificates — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Kubernetes Control Plane TLS Certificates. Renewing certificates on your Kubernetes (k8s) cluster is important to maintain security. Certificates are often used to secure communication between various components in a cluster. Below is a step-by-step guide on…

  • Jump Desktop RDP/VNC Setup with Fluid

    💡 Jump Desktop RDP/VNC Setup with Fluid — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Jump Desktop RDP/VNC Setup with Fluid. Mac to Mac Korean-English conversion key setting References and Guidelines (NOTE) Even if the OS settings support caps-lock and ctrl + space for both the host and remote by…