0b9f32c6d2
* upgrade Nomad from 0.8.4 to 0.8.6 * update deprecated nomad and vault commands * update AMI ID * add ingress rule for default fabio port and fabio UI * upgrade Consul and Vault versions * update AMI ID in README.md and terraform.tfvars
89 lines
3.3 KiB
Markdown
89 lines
3.3 KiB
Markdown
# Provision a Nomad cluster in the Cloud
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Use this repo to easily provision a Nomad sandbox environment on AWS or Azure with
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[Packer](https://packer.io) and [Terraform](https://terraform.io).
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[Consul](https://www.consul.io/intro/index.html) and
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[Vault](https://www.vaultproject.io/intro/index.html) are also installed
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(colocated for convenience). The intention is to allow easy exploration of
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Nomad and its integrations with the HashiCorp stack. This is *not* meant to be
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a production ready environment. A demonstration of [Nomad's Apache Spark
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integration](examples/spark/README.md) is included.
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## Setup
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Clone the repo and optionally use [Vagrant](https://www.vagrantup.com/intro/index.html)
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to bootstrap a local staging environment:
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```bash
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$ git clone git@github.com:hashicorp/nomad.git
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$ cd nomad/terraform
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$ vagrant up && vagrant ssh
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```
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The Vagrant staging environment pre-installs Packer, Terraform, Docker and the
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Azure CLI.
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## Provision a cluster
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- Follow the steps [here](aws/README.md) to provision a cluster on AWS.
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- Follow the steps [here](azure/README.md) to provision a cluster on Azure.
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Continue with the steps below after a cluster has been provisioned.
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## Test
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Run a few basic status commands to verify that Consul and Nomad are up and running
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properly:
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```bash
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$ consul members
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$ nomad server members
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$ nomad node status
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```
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## Unseal the Vault cluster (optional)
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To initialize and unseal Vault, run:
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```bash
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$ vault operator init -key-shares=1 -key-threshold=1
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$ vault operator unseal
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$ export VAULT_TOKEN=[INITIAL_ROOT_TOKEN]
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```
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The `vault init` command above creates a single
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[Vault unseal key](https://www.vaultproject.io/docs/concepts/seal.html) for
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convenience. For a production environment, it is recommended that you create at
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least five unseal key shares and securely distribute them to independent
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operators. The `vault init` command defaults to five key shares and a key
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threshold of three. If you provisioned more than one server, the others will
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become standby nodes but should still be unsealed. You can query the active
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and standby nodes independently:
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```bash
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$ dig active.vault.service.consul
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$ dig active.vault.service.consul SRV
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$ dig standby.vault.service.consul
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```
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See the [Getting Started guide](https://www.vaultproject.io/intro/getting-started/first-secret.html)
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for an introduction to Vault.
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## Getting started with Nomad & the HashiCorp stack
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Use the following links to get started with Nomad and its HashiCorp integrations:
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* [Getting Started with Nomad](https://www.nomadproject.io/intro/getting-started/jobs.html)
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* [Consul integration](https://www.nomadproject.io/docs/service-discovery/index.html)
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* [Vault integration](https://www.nomadproject.io/docs/vault-integration/index.html)
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* [consul-template integration](https://www.nomadproject.io/docs/job-specification/template.html)
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## Apache Spark integration
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Nomad is well-suited for analytical workloads, given its performance
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characteristics and first-class support for batch scheduling. Apache Spark is a
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popular data processing engine/framework that has been architected to use
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third-party schedulers. The Nomad ecosystem includes a [fork that natively
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integrates Nomad with Spark](https://github.com/hashicorp/nomad-spark). A
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detailed walkthrough of the integration is included [here](examples/spark/README.md).
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