Opsinthecloud - david nalley

Ops in the Cloud Puppetconf David Nalley [email_address]

# whoami
Horrible at slide aesthetics
Recovering sysadmin
Community Manager for CloudStack
Contributor to a number of F/LOSS projects
Fedora
Zenoss
Number of others to lesser degrees

What this isn't
Telling you how to be the next {Netflix, Facebook, Zynga, Google}
A presentation about the cloud (hopefully you know what that is)
A detailed checklist of what to do to get it right.

The problem domain
Provisioning of machines and services isn't centralized, and perhaps not even human driven.
Scaling means that machines come and go and come and go, and come and go.
You may or may not have the same level of access that you are used to.
Things happen MUCH faster

Foundational Elements of Cloud Ops
Automated Provisioning
Config Management
Monitoring
Orchestration

Automated Provisioning
Cloud has typically meant golden masters. FAIL
No access to the typical things you'd likely have access to even with virtualization.
AMI, VHD, OVA, OVF, QCOW2, VMDK, oh my!
Have disk image, how to start? Multiple clouds?

Config Management
Machines come and go whimsically – no time to edit nodes.pp or manually handle certs
How do I ensure that it gets correct manifests applied.
Is autosigning really secure?
Lots of potential for cruft to build up if done wrong.

Monitoring
Scaling means you might not care about single instances.
If a single instance goes down, and no one notices, should you care?
At what point do you alert?
What do you do with all of the data (that machine only stayed up for 30 minutes or 30 hours)
Did the machine die, or did something magically decommission it? Or is it 'Cloud HA'?

Orchestration
Config Management gets you to a state – but is a small slice.
Scheduling batch jobs, app deployment.
How do you know how many appservers there are at any given time that you should be orchestrating?

Opsinthecloud - david nalley

by Puppet Labs on Oct 11, 2011

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Opsinthecloud - david nalley — Presentation Transcript