118 lines
4.2 KiB
Markdown
118 lines
4.2 KiB
Markdown
Nomad [](https://travis-ci.org/hashicorp/nomad)
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=========
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- Website: https://www.nomadproject.io
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- IRC: `#nomad-tool` on Freenode
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- Mailing list: [Google Groups](https://groups.google.com/group/nomad-tool)
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Nomad is a cluster manager, designed for both long lived services and short
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lived batch processing workloads. Developers use a declarative job specification
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to submit work, and Nomad ensures constraints are satisfied and resource utilization
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is optimized by efficient task packing. Nomad supports all major operating systems
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and virtualized, containerized, or standalone applications.
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The key features of Nomad are:
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* **Docker Support**: Jobs can specify tasks which are Docker containers.
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Nomad will automatically run the containers on clients which have Docker
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installed, scale up and down based on the number of instances request,
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and automatically recover from failures.
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* **Multi-Datacenter and Multi-Region Aware**: Nomad is designed to be
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a global-scale scheduler. Multiple datacenters can be managed as part
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of a larger region, and jobs can be scheduled across datacenters if
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requested. Multiple regions join together and federate jobs making it
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easy to run jobs anywhere.
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* **Operationally Simple**: Nomad runs as a single binary that can be
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either a client or server, and is completely self contained. Nomad does
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not require any external services for storage or coordination. This means
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Nomad combines the features of a resource manager and scheduler in a single
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system.
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* **Distributed and Highly-Available**: Nomad servers cluster together and
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perform leader election and state replication to provide high availability
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in the face of failure. The Nomad scheduling engine is optimized for
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optimistic concurrency allowing all servers to make scheduling decisions to
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maximize throughput.
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* **HashiCorp Ecosystem**: Nomad integrates with the entire HashiCorp
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ecosystem of tools. Along with all HashiCorp tools, Nomad is designed
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in the unix philosophy of doing something specific and doing it well.
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Nomad integrates with tools like Packer, Consul, and Terraform to support
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building artifacts, service discovery, monitoring and capacity management.
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For more information, see the [introduction section](https://www.nomadproject.io/intro)
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of the Nomad website.
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Getting Started & Documentation
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-------------------------------
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All documentation is available on the [Nomad website](https://www.nomadproject.io).
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Developing Nomad
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--------------------
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If you wish to work on Nomad itself or any of its built-in systems,
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you will first need [Go](https://www.golang.org) installed on your
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machine (version 1.5+ is *required*).
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**Developing with Vagrant**
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There is an included Vagrantfile that can help bootstrap the process. The
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created virtual machine is based off of Ubuntu 14, and installs several of the
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base libraries that can be used by Nomad.
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To use this virtual machine, checkout Nomad and run `vagrant up` from the root
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of the repository:
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```sh
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$ git clone https://github.com/hashicorp/nomad.git
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$ cd nomad
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$ vagrant up
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```
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The virtual machine will launch, and a provisioning script will install the
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needed dependencies.
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**Developing locally**
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For local dev first make sure Go is properly installed, including setting up a
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[GOPATH](https://golang.org/doc/code.html#GOPATH). After setting up Go, clone this
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repository into `$GOPATH/src/github.com/hashicorp/nomad`. Then you can
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download the required build tools such as vet, cover, godep etc by bootstrapping
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your environment.
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```sh
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$ make bootstrap
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...
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```
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Afterwards type `make test`. This will run the tests. If this exits with exit status 0,
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then everything is working!
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```sh
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$ make test
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...
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```
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To compile a development version of Nomad, run `make dev`. This will put the
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Nomad binary in the `bin` and `$GOPATH/bin` folders:
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```sh
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$ make dev
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...
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$ bin/nomad
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...
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```
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To cross-compile Nomad, run `make bin`. This will compile Nomad for multiple
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platforms and place the resulting binaries into the `./pkg` directory:
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```sh
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$ make bin
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...
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$ ls ./pkg
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...
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```
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