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Cloud Management


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Slides on Cloud management solutions (e.g. Scalr, RightScale, enStratus, ylastic, scalarium etc). Presentet at AWS Usegroup Greece meetup 4.

Slides on Cloud management solutions (e.g. Scalr, RightScale, enStratus, ylastic, scalarium etc). Presentet at AWS Usegroup Greece meetup 4.

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  • 1. Cloud Management 24 May 2012 Andreas Chatzakis Follow me on twitter: @achatzakis AWS Usergroup Greece
  • 2. Why Cloud ManagementUnlocking the promises of Cloud Computing requiresthe right key... Cloud Computing brings Elastic Scalability, Agility & Reliability. Providers gave us APIs and endless possibilities. Yes! Cloud removes complexity. But gives us the power of choice! Taming this dynamic environment requires tooling, organization & operational procedures. Enter Cloud Management.... 2
  • 3. I thought cloud was easy?True - The cloud removes several headaches... Manage hardware (we outsourced that years ago anyway) Procure servers (cloud = on-demand) Patch multiple servers (thanks to virtualization) Capacity planning (actually thats sort of a lie) And of course there are also various zero-management solutions like Storage & DB as a Service (S3, RDS) 3
  • 4. Well it is...But we still own several ITOPS responsibilities  Architect & Implement  Manage Configuration  Monitor & Failover  Backup and Restore  Scale (automatically please) & Decommision  Manage logs  Deploy code  Manage dev/test/prod environments  Secure & Manage access Remember: IaaS != PaaS / SaaS 4
  • 5. How about an example?In order to scale my DB I need to: Monitor usage & decide I need one more MySQL slave Launch new node Configure & run init scripts Attach storage and restore a recent DB snapshot Discover Master and start Replication Start logging and monitoring Manage access via SSH keys Secure & give access to currently running app servers Let application know I am here 5
  • 6. Enter Cloud Management Cloud Management promises to reduce(admin effort) / (# of servers) ratio:  An extra layer between you and your infrastructure (hide complexity)  Convention over configuration (Decrease the number of decisions I need to make)  Tools & Automation (Reduce operational costs & risks)  Dashboards, monitors, logs (Visibility) Not just a better GUI! 6
  • 7. An analogyRemember what an application framework is? Aim: Do more with less, dont reinvent the wheel and enforce good practices (e.g. MVC pattern) Reduced degrees of freedom (better than it sounds...) Convention over configuration Set of reusable libraries for common functionality. Cloud management = IaaS framework + tooling 7
  • 8. So what does it do? Cloud management solutions typically break down toseveral capabilities:  Server Templates (version control for servers!)  A scripting engine (run script X on all my app servers)  Deployment Tools (get latest & push to app servers )  Automation & Monitoring (Autoscaling, Failover, Alerts)  Backup and Restore (auto snapshot, DB dumps to S3)  Visibility (Logs, Utilization, Costs)  Security management (firewall rules, admin access) Cloud Management != PaaS / SaaS Why? You still maintain control & customizability 8
  • 9. Server TemplatesConfiguration management for dynamic infrastructure Ready-to-use templates – embedded best practices Import your own or customize “Version control” for your server images Easy roll out of updates Attach Scripts, Chef recipes Standardized Behaviors – consistent & reproducible Auto-provision – in context Auto-configure – variable inputs Auto-discovery – Who am I? - Who else is here? 9
  • 10. Scripting Engine Easing the tedious task of running scripts on multipleephemeral servers  Version control your infrastructure scripts  Allow for dynamic parameters  Run on demand on one, selected or all servers  Run on server init or on server termination  Run on this server or on other servers  Schedule to run on specific time or intervals  All through an admin friendly UI 10
  • 11. Deployment toolsAgility is... automated code promotion to Production Push code from Source control system to your servers Pre/Post deployment scripts (Unit Tests, DB migration) Multiple sources, multiple destinations 11
  • 12. Security ManagementBeing tidy matters in maintaining security control Organize security groups per role, farm etc Multiple admin users Seggregate access to different environments Scripts for security patches SSH key management Access terminal via the web 12
  • 13. Automation & MonitoringMonitor and automatically react to change at 3:00 AM Monitor system usage metrics Autoscale up or down Keep your setup tidy – (e.g. no orphan EBS volumes) Replace failed nodes DB failover Alert APIs for deep integrations & automations 13
  • 14. Backup & Disaster RecoveryReuse robust, tried and tested DR procedures Disk Snapshots DB backups Alerts when backups fail Retention and cleanup Failover when Availability Zone fails Failover when whole Region goes down (costly) Multi cloud setups (Cold DR, Warm DR, Hot DR, HA) 14
  • 15. VisibilityFrom top to bottom, track and report on what matters Cloud objects usage Metrics on load per server, role or farm Audit log Script execution log Analyze failures 15
  • 16. Meet the vendors 16
  • 17. Who uses cloud management?Large & small setups rely on Cloud Management: (RightScale) (RightScale) (Scalr) (Scalr) (Scalarium) (inhouse solution) (inhouse solution) 17
  • 18. Do I need it? You need to manage your cloud infra. Which tool youuse is a business decision:  Handcrafted scripts vs robust solution that scales  Time it would take you to DIY & reinventing the wheel  How complex and dynamic is your setup?  Value of agility for your company  Sysops capacity in your team  Can you quantify ITOPS efficiencies?  Risk of not getting it right vs imposed good practices Personal experience: Digested cloud concepts top-bottom thanks to cloud management. 18
  • 19. Questions? 19