Harbor Active-Standby Deployment: From Installation to HTTPS and Replication
Complete guide to deploying Harbor enterprise Docker registry with active-standby architecture, HTTP/HTTPS modes, self-signed certificates, and cross-host replication.
Posts
OpenStack Cloud OS: Core Architecture and Automated Deployment
From core components (Nova/Glance/Neutron/Cinder, etc.) to one-click Packstack-based automated deployment of the Victoria release, plus Rsyslog log troubleshooting.
OpenStack Cinder Block Storage Explained: Local LVM + iSCSI Volumes and NFS Backend Integration
A walkthrough of OpenStack Cinder block storage: how volume creation and attachment split between Cinder and Nova, the full local LVM + iSCSI path (VG/LV, turning the controller into an iSCSI target with targetcli, attaching via libvirt), plus NFS backend configuration and dashboard operations.
OpenStack Core Services Explained: Keystone Authentication, Nova Compute, and Glance/Swift Image Storage
A walkthrough of OpenStack’s three core services: Keystone multi-domain support, service/endpoint registration and policy-file authorization; Nova’s modules (api/scheduler/conductor/compute/novncproxy), the message queue and the differential disk; and the Glance image service switched to a Swift object-storage backend.
OpenStack Cloud Server Provisioning
From the web dashboard to the CLI, a complete walkthrough of provisioning OpenStack cloud servers: creating and deleting tenants/users/images/flavors/networks/routers/security groups/key pairs/floating IPs, plus iptables SNAT/DNAT and Nova cell_v2 discover_hosts troubleshooting.