It's literally automatic by configuring your workflows by file changes.
> If you make your deployment fast and seamless, who cares?
It still costs CI/CD time and depending on the target platform, there are foundational limitations on how fast you can deploy. Fixing a button in a React SPA and deploying that to S3 and CloudFront if fast. Building and deploying a Go backend container -- that didn't even change -- to ECS is at least a 4-5 minute affair.
I get that, and like anything it's a matter of trade-offs.
To me, in most cases, 4 or even 10 minutes is just not a big deal. It's fire-and-forget, and there should be a bunch of things in place to prevent bad deploys and ultimately let the team know if something gets messed up.
When there's an outage, multiple people get involved and it can easily hit 10+ hours of time spent. If adding a few minutes to the deploy time prevents an outage or two, that's worth it IMHO.
