"The DevOps Revolution"
'Before' the dark ages to 'After' DevOps Adoption:
1. Dev Team:
Write Code, "toss it over the wall" => Write Code deploy
2. Ops Team:
Rack servers, deploy code => Write code deploy
3. Servers:
Dedicated physical servers => Elastic virtual servers
4. Connectivity:
Static IPs => Dynamic IPs, Service Discovery
5. Security:
Physical, Strong perimeter, high trust => Virtual, end-to-end, zero trust
6. Infra provisioning:
Manual => Infrastructure as Code (IaC) tools
7. Server Configuration:
Manual => Configuration management tools
8. Testing:
Manual => Automated Testing
9. Deployments:
Manual => Automated
10. Deployment Cadence:
Weeks or months => Many times per day
11. Change process:
Change request tickets => Self Service
12. Change cadence:
Weeks or months => Minutes
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