coreos-cluster

coreos-cluster

Create a fully functional CoreOs Cluster on Rackspace Cloud from any node.js application. A command-line version of coreos-cluster is available on npm as coreos-cluster-cli.

Quick Example

var cluster = require('coreos-cluster');

cluster.createCluster({
  numNodes: 10,
  type: 'performance',
  release: 'beta',
  keyname: 'my-ssh-keyname',
  credentials: {
    username: 'your-user-name',
    apiKey: 'some-key-here',
    region: 'iad'
  }
}, function(err, results) {
  // will callback with a functional cluster
});

Options

• numNodes - required. Number of nodes. Clusters must have at least 3 nodes
• type - Optional. performance or onMetal servers, defaults to performance vms
• release - Optional. coreos release: stable (default), beta or alpha
• keyname - Optional. Rackspace Cloud Servers SSH keyname. If not provided, will create a new ssh key and include in the results
• flavor - Optional. The Rackspace Cloud Servers flavor. Defaults to performance1-1 flavor for performance and onmetal-compute1 for onMetal
• privateNetwork - Optional. Guid for a rackspace private network. Will configure etcd to use the private network.
• monitoringToken - Optional. Will configure the nodes for Rackspace cloud monitoring.
• discoveryServiceUrl - Optional. Url for an existing cluster's discovery service. Will add numNodes to current cluster instead of create a new cluster.
• update - Optional. Update strategies.
  • group - The update group, can be "master", "stable", "alpha", "beta", or a UUID for a custom CoreUpdate group.
  • server - Server to get updates from, e.g. https://public.update.core-os.net or https://customer.update.core-os.net
  • rebootStrategy - When to reboot after an update. E.g. best-effort, etcd-lock, reboot, off.
• credentials - Required. The credentials for the create cluster call
  • username - Username for your rackspace account
  • apiKey - Api key for your rackspace account
  • region - Region to create the cluster in
  • useInternal - Optional, use local service net interface if calling from Rackspace Cloud machines

Advanced Usage Example

var cluster = require('coreos-cluster');

cluster.createCluster({
  numNodes: 10,
  type: 'performance',
  release: 'beta',
  keyname: 'my-ssh-keyname',
  discoveryServiceUrl: 'https://discovery.etcd.io/some-guid-here',
  privateNetwork: '4c371711-44ae-15ab-86af-45438fb96a15',
  monitoringToken: 'your-monitoring-token',
  update: {
      group: '0a809ab1-c01c-4a6b-8ac8-6b17cb9bae09',
      server: 'https://customer.update.core-os.net/v1/update/',
      rebootStrategy: 'best-effort'
  },
  credentials: {
    username: 'your-user-name',
    apiKey: 'some-key-here',
    region: 'iad'
  }
}, function(err, results) {
  // will callback with a details of the added nodes
});

Installation

npm install coreos-cluster

Next Steps

As coreos-cluster is built on pkgcloud, the next step is to add a provider option that allows you to use different compute providers within pkgcloud.