[bootcat]

In the company i worked for, they had their own CI/CD system which tracked information about each service and the systems onto which it has to deploy. Once it was all configured, it was basically button pushes. Also the system tracked feedback after deployment to confirm if the build went good or needed to be fixed - if certain parameters were unwell, basically it did a role back ! Also there were canary deployments to make sure code was deployed only to portion of systems to make sure it indeed pushed correctly and worked. If not, they are rolled back !