There are four key metrics to measure DevOps success. These metrics have been introduced by DORA and are described in the following bullet points.
Lead Time for Changes: Measure of time spent between the code testing and code production
Deployment Frequency: Measure of how often the code is pushed into production
Time to Failure Recovery: Measure of the time it takes to restore and recover service after a failure has been detected
Change Failure Rate: Measures the frequency of failures detected in the deployment pipeline