Let's say we are running a hosting service, then docker is a no go.
You mean you are running a shared hosted environment?
Probably so. However if you take a look at Zeit's now. You could think of that as shared hosting environment too, and they support serving your apps through container technology.
Let's say we have 20 projects running on the same machine. We don't need docker for that.
You don't "need", but perhaps it solves you some problems.
But, what if we have 20 projects runnings 20 different configurations... sheesh! what's a mess!
Why a mess? if you have 20 difference projects, and each of their own configuration, why is that a message?
I'm not entirely sure on the point you are trying to make with regards to the validity of docker or not. To be clear though, I didn't specifically refer to the Docker engine technology but to container technology in general.
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You mean you are running a shared hosted environment?
Probably so. However if you take a look at Zeit's now. You could think of that as shared hosting environment too, and they support serving your apps through container technology.
You don't "need", but perhaps it solves you some problems.
Why a mess? if you have 20 difference projects, and each of their own configuration, why is that a message?
I'm not entirely sure on the point you are trying to make with regards to the validity of docker or not. To be clear though, I didn't specifically refer to the Docker engine technology but to container technology in general.