alt Hacker NewsIt's not an unachievable dream. It's a trade-off made by people who may or may not have made the right call. Some things just don't run on a local machine: fair. But a lot of things do, even very large things. Things can be scaled down; the same harnesses used for the development environment and your CI environment and your prod environment. You don't need a full prod db, you need a facsimile mirroring the real thing but 1/50th the size.
Yes, there will always be special exemptions: they suck, and we suffer as developers because we cannot replicate a prod-like environment in our local dev environment.
But I laugh when I join teams and they say that "our CI servers" can run it but our shitty laptops cannot, and I wonder why they can't just... spend more money on dev machines? Or perhaps spend some engineering effort so they work on both?
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> It's not an unachievable dream. It's a trade-off made by people who may or may not have made the right call.
In my experience at work. Anything that demands too much though, collaboration between teams and enforcing hard development rules, is always an unachievable dream in a medium to big project.
Note, that I don't think it's technically unachievable (at all). I just accepted that it's culturally (as in work culture) unachievable.
> You don't need a full prod db, you need a facsimile mirroring the real thing but 1/50th the size.
My experience has been that the problems in CI systems come from exactly these differences “works on my machine” followed by “oops, I guess the build machine doesn’t have access to that random DB”, or “docker push fails in our CI environment because credentials/permissions, but it works when I run it just on my machine”