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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