Docker is an Immature Technology on AWS ECS

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I’ve been working on converting some backend API development environments from a vagrant VM-based platform onto docker containers, provisioned using a Chef configuration that also builds the EC2 instances that production services are deployed onto.

Originally, I intended to move containerised production deployments onto Amazon’s Elastic Container Service (ECS) but backed out when I realised how immature the technology is. I’m sure it won’t stay that way with the velocity that AWS is moving at, but right now ECS is under-developed.

I’d expected ECS to be similar to the Lambda platform, which allows functions to be pushed onto AWS for deployment in a hidden pool of compute resource that can scale on demand. I imagined we’d be pushing docker containers into a similar pool of essentially infinite resource for which we’d pay a simple usage fee.

Unfortunately that’s not how it is. On ECS you define and manage a pool of EC2 resource that containers are deployed onto.

For some use-cases this is probably not an impediment, but when you’re dealing with a large number of projects that rarely require more than a handful of servers, the requirement to manage both the container layer and the underlying compute resource layer is an overhead that surprised me.

I can’t wait for deployment of containers on the AWS platform to remove the need to manage compute resource beyond the simple specification of operating characteristics to service an expected workload.

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I talked about some adventures in the land of[Docker]( few weeks ago, in[Docker is an Immature Technology on AWS...… Continue reading

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