This tutorial explains how to perform remote operations on OpenStack Glance images stored in Ceph—covering preparation, secret configuration, image conversion, resizing, snapshot creation, and in‑place editing with libvirt and guestfish—so you can manage images entirely on the storage backend.
This tutorial walks through the complete installation and configuration of OpenStack's Glance image service and Nova compute service, covering package installation, database initialization, Keystone integration, service registration, endpoint creation, and service startup on both controller and compute nodes.
Learn how to set up a private OpenStack Icehouse cloud by following detailed installation steps, configuring Keystone, setting up networking, creating tenants, roles, and users, and verifying services, complete with command-line examples and essential configuration files.
OpenStack Ironic is a dedicated bare‑metal service that replaces Nova’s original driver, using PXE and IPMI to automate physical server deployment, power management, and resource discovery, integrating with Keystone, Nova, Neutron, Glance, and Cinder to provide cloud‑like provisioning for real hardware.
A roundup of recent tech developments covering a massive US DNS outage caused by IoT‑based DDoS attacks, Apple’s addition of ARM support to macOS Sierra, Google’s evolving 20% time policy, new multi‑data‑center features in Confluent Kafka, MariaDB’s new member, a critical OpenSSL flaw, China Mobile’s OpenStack award, and Tencent’s rapid Nexus 6P hack.
The article examines how containerizing OpenStack—through Docker images, orchestration tools, and projects like Kolla—offers streamlined upgrades, flexible scaling, reduced configuration complexity, OS‑agnostic deployment, faster testing, high‑availability solutions, and innovative development cycles, highlighting both technical implementations and operational benefits.
This article presents Ctrip's deployment of a virtual cloud desktop system for its call center, detailing the OpenStack‑based architecture, advantages over traditional PCs, challenges encountered, the evolution to a decoupled design, resource over‑commit strategies, networking issues, and the operational tools and automated testing that ensure stability.
This article details Ctrip's deployment of a large‑scale virtual cloud desktop solution for its call center, covering the motivations, original OpenStack architecture, its limitations, the redesigned decoupled architecture, and the operational practices such as resource over‑commit, network tuning, monitoring, and automated testing that ensure stability and scalability.
This article explains what OpenStack is, outlines its core modules, and details the most important monitoring metrics for Nova, Neutron, Keystone, hypervisors, tenants, and RabbitMQ, helping engineers build a robust, scalable OpenStack monitoring solution.
Smaug, now called Karbor, is an OpenStack project that standardizes data protection across heterogeneous virtualization platforms by offering unified APIs, plugin architecture, and workflow services to protect VMs, volumes, networks, and other resources with backup, replication, and migration capabilities.
This article provides a comprehensive overview of Ceph's distributed storage architecture, its integration with OpenStack, internal data mapping mechanisms, advanced features like SSD caching and global object storage, and examines the key factors behind its widespread adoption in cloud environments.
This article explains how OpenStack’s Nova service interacts with underlying hypervisors—especially KVM—through components like Nova‑Compute, drivers, and Libvirt, covering supported hypervisors, scheduling, and the overall workflow for creating virtual machines in a cloud environment.
This guide walks through configuring a Percona XtraDB Cluster on three OpenStack nodes, disabling SELinux and firewalls, installing and tuning MySQL, setting up HAProxy for load balancing, deploying Keepalived for failover, and verifying high‑availability with practical test steps.
The article explains the growing trend of containerizing OpenStack, describes how projects like Kolla achieve this, and outlines the advantages such as easier upgrades, greater flexibility, simplified configuration management, reduced OS vendor lock‑in, faster deployment, and improved monitoring and innovation.
The article reviews Red Hat Ceph Storage 2’s major updates—including multi‑site support, enhanced authentication, S3 compatibility, and performance gains with InfiniFlash—explains its pivotal role in OpenStack deployments, and mentions the 2016 China Open Source Storage Summit.
The Beijing OpenStack Days event on July 14‑15, sponsored by Huawei, gathered over 2,000 attendees and featured key speeches on Open Cloud, distributed data‑center challenges, and OpenStack container projects, while showcasing FusionCloud solutions and upcoming technical sessions.
This article explains the fundamentals of cloud computing, why cloud servers are advantageous over traditional PCs, outlines public, private, and hybrid cloud models, describes IaaS/PaaS/SaaS layers, introduces key platforms like OpenStack, CloudStack, and OpenShift, and highlights virtualization as the core technology.
This article reviews ten essential OpenStack networking talks from the Austin OpenStack Summit, summarizing each session's focus, rating, key insights, and practical comments to help developers, architects, and users stay current with SDN and cloud networking advances.
The article outlines how a startup with limited physical servers can build a cost‑effective, highly available IAAS using OpenStack, extend it with a CAAS layer based on Kubernetes, and then design a microservice architecture with command‑event separation, network and storage virtualization, and governance mechanisms to support rapid business growth.
This article introduces the key OpenStack services—Nova, Neutron, Keystone, Glance, Horizon, Cinder, Swift, Heat, and Ceilometer—explaining each component’s role, functionality, and how they collectively enable scalable compute, networking, identity, image, dashboard, block storage, object storage, orchestration, and telemetry in cloud environments.
This article introduces OpenStack, the open‑source cloud operating system, explains its role compared to Linux, outlines its core services such as compute, storage, networking and identity, and describes the main projects and loosely‑coupled architecture that power modern IaaS platforms.
This article provides a comprehensive overview of Cloudify, an open‑source cloud orchestration platform, covering its evolution from Java to Python, core components, architecture, integration with Docker and OpenStack, typical use cases, and practical deployment scenarios for efficient operations.
This article presents an overview of Ctrip's cloud platform built on OpenStack, details the architecture and components of Ceph storage—including RGW and RBD—describes deployment configurations across multiple data centers, and discusses real-world use cases such as hotel image feature storage and cross‑region continuous delivery.
This article details how Mogujie's private cloud platform, built on OpenStack, Docker, and KVM, was engineered and optimized to handle the massive traffic of the 11.11 shopping festival, covering architectural choices, stability measures, monitoring, disaster recovery, performance tuning, and integration with existing operations systems.
Red Hat announced at the Tokyo OpenStack Summit that governance of its Ceph software‑defined storage suite will shift from Red Hat to a newly formed Ceph Advisory Board comprising multiple industry leaders, signaling broader community control and continued growth of Ceph as a key cloud storage solution.
An in-depth overview explains OpenStack’s Nova-Network and Neutron architectures, compares their networking models, discusses node roles, high-availability strategies, overlay technologies like VxLAN, and offers practical guidance for selecting the right network component based on business scenarios.
This article examines the architectural differences, performance, consistency, and security trade‑offs between Ceph and Swift object storage in OpenStack, offering guidance on selecting the appropriate solution based on deployment scale, multi‑region needs, and security requirements.
The Ctrip OpenStack Shanghai meetup gathered over 100 practitioners to share in‑depth technical sessions on Neutron distributed virtual routing, SDN and network virtualization, OpenStack upgrade and Bare Metal, large‑scale OpenStack operations at eBay, mobile management solutions, and Ctrip's desktop cloud platform.
This article provides a comprehensive overview of OpenStack Swift, covering its background, consistent hashing, quorum-based consistency model, ring data structure, hierarchical data model, system architecture, component responsibilities, and RESTful API usage for scalable object storage.
In this interview, Ctrip’s senior VP of technology Eric Ye discusses the company’s shift from offline call‑center to mobile and online services, the strategic initiatives that drove a ten‑fold growth, the creation of a private OpenStack‑based cloud, and the qualities he believes make an outstanding CTO.
In this interview, Ctrip’s Senior Vice President of Technology Eric Ye discusses the challenges of being a CTO, outlines the six key qualities for success, describes Ctrip’s three‑year technology transformation—including the Open API Everywhere strategy and a private cloud built on OpenStack—and shares insights on fostering innovation and patent culture.
The article recaps Huawei's five‑day OpenStack Paris summit, highlighting eleven keynote talks on enterprise OpenStack, multi‑site cascading, deployment tools, a 200‑node big‑data cloud, NFV optimizations, software‑defined infrastructure, and the FusionSphere‑based OpenStack journey.
This article explains the architecture and inter‑service communication of OpenStack, detailing each core component, the REST and RPC interactions, and demonstrates practical request flows for creating and shelving instances using nova‑client with debug output and relevant code excerpts.
When a compute node in an OpenStack‑KVM private cloud crashes and its Linux virtual machines become read‑only, this guide explains why the filesystem turns read‑only and provides step‑by‑step instructions to repair it using fsck.
In an interview, Ctrip Cloud Platform Director Wu Yiting explains how his team built a private OpenStack cloud for development, testing, production and call‑center virtual desktops, outlines the technical challenges, recent IceHouse improvements, and the topics he will present at upcoming OpenStack training sessions.
The article warns that mastering Free Open Source Software—from cloud and big‑data tools like OpenStack, Hadoop and NoSQL to web technologies such as Drupal, PHP, HTML5 and jQuery, mobile app development, popular programming languages, and security certifications—will become essential for IT job seekers, prompting universities to embed FOSS curricula.
