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---
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layout: "intro"
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page_title: "Nomad vs. AWS ECS"
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sidebar_current: "vs-other-ecs"
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description: |-
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Comparison between Nomad and AWS ECS
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---
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# Nomad vs. AWS ECS
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Amazon Web Services provides the EC2 Container Service (ECS), which is
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a cluster manager. The ECS service is only available within AWS and
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can only be used for Docker workloads. Amazon provides customers with
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the agent that is installed on EC2 instances, but does not provide
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the servers which are a hosted service of AWS.
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There are a number of fundamental differences between Nomad and ECS.
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Nomad is completely open source, including both the client and server
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components. By contrast, only the agent code for ECS is open and
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the servers are closed sourced and managed by Amazon.
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As a side effect of the ECS servers being managed by AWS, it is not possible
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to use ECS outside of AWS. Nomad is agnostic to the environment in which it is run,
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supporting public and private clouds, as well as bare metal datacenters.
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Clusters in Nomad can span multiple datacenters and regions, meaning
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a single cluster could be managing machines on AWS, Azure, and GCE simultaneously.
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The ECS service is specifically focused on containers and the Docker
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engine, while Nomad is more general purpose. Nomad supports virtualized,
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containerized, and standalone applications, including Docker. Nomad is
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designed with extensible drivers and support will be extended to all
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common drivers.
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