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Something really simple like capistrano works usually only for a small subset of your services. With Kubernetes, you can run everything in there. And you can au

Something really simple like capistrano works usually only for a small subset of your services. With Kubernetes, you can run everything in there. And you can automate it to a very high degree: Imagine pushing a branch not only deploys it to some test system, but it actually bring up depending databases, a queue and a load balancing layer which then gets load tested. This is partially possible in the cloud as well, yet it requires building machine images which is slow. And you end up with a provider specific solution especially if you try to integrate it very well. But in short: It makes sense very soon if you run on bare metal (and arguably makes it more feasible option to run on bare metal) while it makes only sense much later if you're running in the cloud. I'd say you should have at least more than one team deploying more than every few days.

johnwheeler 10y ago
I'm not super familiar with Capistrano, but you can provision systems and databases with Fabric. I'm still very doubtful of the utility of these more heavyweight technologies relative to the simpler ones for all but a very small subset of organizations. To me, it reeks of people trying to make simple things much more complicated. I haven't used Kubernetes. I tried docker and never understood why people would use it over an ordinary VM and some reusable deployment scripts.
- gtaylor 10y ago
  Kubernetes isn't just about deploying. It comes with central config store, secrets store, service discovery, load balancing, routing/ingress, health checks, rolling updates for your software, auto-scaling, a powerful storage volume system, and a bunch of other things that you don't have to do a crappy job reinventing.
- duaneb 10y ago
  It doesn't make deployment easier, per se. It gives you sane, scalable ways to solve deployment, credentials, logging, autoscaling, infrastructure provisioning, etc etc so you don't have to solve them yourself. Overall I'd say it doesn't solve anything that was unsolved before, but it solves a common problem in a palatable way.
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johnwheeler 10y ago

I'm not super familiar with Capistrano, but you can provision systems and databases with Fabric. I'm still very doubtful of the utility of these more heavyweight technologies relative to the simpler ones for all but a very small subset of organizations. To me, it reeks of people trying to make simple things much more complicated. I haven't used Kubernetes. I tried docker and never understood why people would use it over an ordinary VM and some reusable deployment scripts.

gtaylor 10y ago
Kubernetes isn't just about deploying. It comes with central config store, secrets store, service discovery, load balancing, routing/ingress, health checks, rolling updates for your software, auto-scaling, a powerful storage volume system, and a bunch of other things that you don't have to do a crappy job reinventing.
duaneb 10y ago
It doesn't make deployment easier, per se. It gives you sane, scalable ways to solve deployment, credentials, logging, autoscaling, infrastructure provisioning, etc etc so you don't have to solve them yourself. Overall I'd say it doesn't solve anything that was unsolved before, but it solves a common problem in a palatable way.

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