CERN IT Department CH-1211 Genève 23 Switzerland t The Agile Infrastructure Project Part 1: Configuration Management Tim Bell Gavin McCance

Agenda IT Context and Directions Principles and Status Timelines Issues and Decisions IT Technical Forum – 27 Jan 20122

Industry Context - Cloud Cloud computing models are now standardising –Facilities as a Service – such as Equinix, Safehost –Infrastructure as a Service - Amazon EC2, CVI or lxcloud –Platform as a Service - Microsoft Azure or CERN Web Services –Software as a Service – Salesforce, Google Mail, Service-Now, Indico Different customers want access to different layers –Both our users and the IT Service Managers 3 Applications Platform Infrastructure Facilities

IT Technical Forum – 27 Jan 2012 Industry Context - DevOps DevOps community adopting tool chains with small tools interlinked for particular functions 4

CERN IT Internal Cloud ? Structure IT services as –Horizontal universal layers such as facilities, infrastructure and platform built on cloud framework –Consolidate to reach sustainable support size –Vertical application software services built on platforms Self-Service request for IT resources –Clear tracking of customer allocations and usage Build using redundant platforms –Homogeneous hardware configurations pre-installed –Hardware maintenance in bulk –Virtualise everything unless Total Cost including operations and lifecycle unjustified IT Technical Forum – 27 Jan 20125

Agile Infrastructure Principles Use generic Open Source software and contribute to communities If there is not an open source package which meets our requirements, review the choice of requirements –We are not special Focus customisations on our long term sustainability and avoid high maintenance deviations Learn from the large players such as Google, Facebook, Zynga, Amazon, Rackspace Select products based on function, viability in the real world, support and self-funding eco-system Follow a rapid try/adapt model and learn where our first choice selection is not correct –Standardise on the interfaces, not the tool 6

Expected Benefits Improved response time to new requests for both new infrastructure and applications built on our platforms Exploitation of remote data centre and business continuity Optimisation of resource allocation such as scaling out, live migration for repairs and overcommit Reduced maintenance effort of legacy and unique tools Community developed enhancements directly applicable in our environment (e.g. IPv6) and recipes for implementation Reduce ‘time to production’ of new staff due to existing skills, good training and internet community documentation Improved satisfaction of system administrator and service manager, especially departing staff Selectively replicable solutions to other sites without major support load IT Technical Forum – 27 Jan 20127