This is where we deploy to a new site where we can test and approve the deployment before switching our audience to the new site.
The switch can be achieved by a load balancer or reverse proxy.
This is similar to a
Blue/Green deployment except a sample of the total audience to selected for the switch over. This sample can then approve the change before we switch everyone over.
This is about testing features and associated more with ui improvements.
A/B testing allows us to monitor conversion rates of new features and more about testing user behaviour and measuring response to new features.
agile dev + integration + test
continuous integration + release
continuous delivery + deployment
continuous deployment + operate
ITIL is a framework that can stretch across all devops stages
set of activities transforms input into an output
(more holistic) includes process + tools + training + process relationships
principle - considered - across practices
deployment is a decision of IT
release is a decision of the business
Illustrate how much work is left
Illustrate how much work is complete