why puppet? why now?
TRANSCRIPT
Why Puppet? Why now?
Puppet Camp, London 2015 David Mytton, CEO, Server Density
David Mytton
serverdensity.com/knocknock
Agenda
• Objection handling
• Cloud
• Use cases
• Basics - why Puppet?
Why Puppet?
Why config management?• Similar: why source control?
Why config management?
• Infrastructure as code
• Similar: why source control?
Why config management?
• Infrastructure as code
• Versioned infrastructure
• Similar: why source control?
Why config management?
• Infrastructure as code
• Versioned infrastructure
• Consistency
• Similar: why source control?
Why config management?
• Infrastructure as code
• Versioned infrastructure
• Consistency
• Similar: why source control?
• Readability
Why config management?
• Infrastructure as code
• Versioned infrastructure
• Consistency
• Similar: why source control?
• Readability
• Audits
Use cases• Package deployment
Use cases
• Versions (pinning)
• Package deployment
Use cases
• Versions (pinning)
• Config files / templates
• Package deployment
Use cases
• Versions (pinning)
• Config files / templates
• Tweaks, fixes, patches
• Package deployment
Why Puppet?• PuppetDB: Your infrastructure in a database
Why Puppet?
• Hiera: Your config in a database
• PuppetDB: Your infrastructure in a database
Why Puppet?
• Hiera: Your config in a database
• Facter: Your infrastructure analytics
• PuppetDB: Your infrastructure in a database
Why Puppet?
• Hiera: Your config in a database
• Facter: Your infrastructure analytics
• Forge: Open source your infrastructure
• PuppetDB: Your infrastructure in a database
Why Puppet?
• Hiera: Your config in a database
• Facter: Your infrastructure analytics
• Forge: Open source your infrastructure
• PuppetDB: Your infrastructure in a database
• PE Console: Your infrastructure GUI
Objection handling• I only have a few servers
Objection handling
• Do you plan to grow?
• I only have a few servers
Objection handling
• Do you plan to grow?
• I only have a few servers
• Do you want a consistent environment?
Objection handling
• Do you plan to grow?
• I only have a few servers
• Do you want a consistent environment?
• Destroy/redeploy
Objection handling• It’s too complex
Objection handling
• Initial investment
• It’s too complex
Objection handling
• Initial investment
• It’s too complex
• Saves time with changes later
Objection handling
• Initial investment
• It’s too complex
• Saves time with changes later
• Similar: programming libraries -> Forge
Objection handling• I’ll just SSH manually
Objection handling
• Mistakes
• I’ll just SSH manually
Objection handling
• Mistakes
• I’ll just SSH manually
• Security
Objection handling
• Mistakes
• I’ll just SSH manually
• Security
• Audit
Objection handling• I’ll write a few shell scripts
Objection handling
• Scale
• I’ll write a few shell scripts
Objection handling
• Scale
• I’ll write a few shell scripts
• Idempotency
Objection handling
• Scale
• I’ll write a few shell scripts
• Idempotency
• Version control?
Cloud• Re-deploy around failures
Cloud• Re-deploy around failures
• Consistency across many instances
Cloud• Re-deploy around failures
• Consistency across many instances
• Managing large clusters
Cloud• Re-deploy around failures
• Consistency across many instances
• Managing large clusters
• Querying facts
Use cases• Deploys
Use cases
Use cases
Use cases
Use cases• Deploys
• Docs
Use cases• Deploys
• Docs
• Failover
Why Puppet?
• Hiera: Your config in a database
• Facter: Your infrastructure analytics
• PuppetDB: Your infrastructure in a database
