PROS

• Easy as pie
• No maintainance
• Seemless updates

CONS

• No control over software
• No customization
• You better trust your hoster
• Bad integrations with the rest of the IT

SAAS: SOFTWARE AS A SERVICE

Think: Github, Slack, Salesforce, Google Docs...

PROS

• UNLIMITED HARDWARE
• Can run anything
• That's the cloud baby
• Easy to manage

CONS

• UNLIMITED BILLING
• You better trust your hoster
• More Ops than Dev
• Hard to manage
• You are in the wild West

iAAS: Infrastructure AS A SERVICE

Think:  OVH, AWS

PROS

• Ideal for the dev
• From idea to deployed in 5 minutes
• Enforce best practice
• Clean Ops/Dev separation
• Workflow is smooth and sexy
• Resource sharing is easy

CONS

• I hope you raised 200M$
• Heroku for startups, Cloudfoundry for BigCorp,  no alternative

pAAS: Platform AS A SERVICE

Think:  Heroku, CloudFoundry

Deis saves the day

• Open-Source
• Self-hosted (on AWS)
• Heroku-like
• Like... a copy, a clone, a duplicata
• Best of all worlds

What's inside ?

• Optional Firewall (Naxsi)
• SSL proxy
• Logs pipeline
• High Availability
• Release management

How does it works ?

• 3 to 9 nodes in the system
• Amazon does the load-balancing
• each node has Nginx for proxy and SSL
• Docker for containerization
• Use buildpacks for app setup

How do I USE it ?

• Get the buildpack of your stack
• deis create
• git commit
• git push deis master
• Deployed