Cloud computing, in practice ~ develer workshop
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This document provides an overview of Cloud Computing using OpenNebula. It discusses OpenNebula's history and features, including virtual infrastructure management, external cloud connectors, monitoring, accounting, and quotas. It also covers OpenNebula's architecture, shared storage options, and monitoring tools like Ganglia and Check_mk. Finally, it provides an overview of OpenNebula's command line interface.
Cloud computing, in practice ~ develer workshop
- 1. Cloud Computing, in practice with Giovanni Toraldo - Sysadmin
- 2. about.me/giovannitoraldo ● Keywords: Linux, Debian, Ubuntu, PHP, Drupal, Symfony, Open Source, pizza, beer, geek. ● OpenNebula contributor, currently working on Cloudesire at Liberologico.
- 3. About OpenNebula OpenNebula.org is an open-source project developing the industry standard solution for building and managing virtualized enterprise data centers and IaaS clouds
- 4. A bit of history
- 5. Core features ● Virtual infrastructure management and orchestration (KVM, XEN, ESXi) ● External cloud connector (EC2) ● Interfaces for Cloud Consumers (EC2, OCCI) ● Capacity and performance management ● Monitoring ● Accounting ● User quota, ACLs
- 6. Why not something else? ● Focusing on data center virtualization ● High perf core, scriptable drivers ● All-in-one package, batteries included ● Opensource and user-driven development ● API-agnostic
- 7. Architecture
- 9. Shared storage: NFS or? GlusterFS: completely decentralized, no SPOF, FUSE client, developed by Red Hat: http://gluster.org - use ON shared driver. MooseFS: no native HA, proven stable, automatic balancing of resources: http://moosefs.org - use ON shared driver. Ceph: should solve a lot of problems, but actually only the block device is "stable": http://ceph.com - use experimental driver
- 10. Monitoring ● Ganglia: near-zero configuration, distributed monitoring and graphing for HPC, clusters, and highly dynamic environments. ● im_ganglia driver can be used to off-load frontend from hosts resources polling via ssh.
- 12. Monitoring ● Check_mk: use a local agent to gather metrics on every node, generate nagios/icinga configs to retrieve them and generate alerts when shit happens. ● HOST_HOOK and VM_HOOK can be used to dynamically attach/detach hosts and VM instances within Check_mk.
- 14. It's time to party...
- 16. Overview of the CLI Interface # Login as root/opennebula and su on oneadmin $ su - oneadmin # Currently configured hosts and their status $ onehost list # Currently available vnetworks $ onevnet list # Show leases and specific configuration of the vnetwork $ onevnet show 0 # List available disk images $ oneimage list # List registered VM templates $ onetemplate list # Show template details $ onetemplate show 0