quorra

quorra

A utility to make dealing with CoreOS hosts running in our vSphere cluster standardized and simple.

Overview

quorra uses the vSphere API version 5.0 (and may work with later versions) and registers itself as a vCenter extension. It requires a broad swath of permissions and is best used by vSphere administrators only.

Configuration is stored in two files:

• quorra.conf the configuration of quorra itself
• cloud-config.tmpl the template to use for CoreOS cloud-config files

quorra.conf is a simple TOML format configuration file. We've tried to keep the number of configuration parameters to a bare minimum. See the sample configuration file for details of the configuration sections and parameters.

Some, but not all, configuration parameters can be specified as environment variables (taking precedence over the configuration file.) See the ENV Parameters section below for details.

cloud-config.tmpl should be a "standard" CoreOS cloud-config file that you can optionally enhance by inserting Go text/template directives.

Most notably the attributes .PrivateIP and .PublicIP are available when processing cloud-config.tmpl so you'll almost certainly want, at a minimum, sections like:

coreos:
  etcd:
    # you may need to use {{.PublicIP}} depending on your network
    # configuration
    addr: {{.PrivateIP}}:4001
    peer-addr: {{.PrivateIP}}:7001
  units:
    - name: 00-eth0.network
      runtime: true
      content: |
        [Match]
        Name=eth0

        [Network]
        Address={{.PrivateIP}}/24
        Gateway=192.168.1.254
        DNS=192.168.1.1
    - name: 00-eth1.network
      runtime: true
      content: |
        [Match]
        Name=eth1

        [Network]
        Address={{.PublcIP}}/24
        Gateway=192.168.1.254
        DNS=192.168.1.1

The full list of available attributes is:

• .Hostname
• .PrivateIP
• .PublicIP

ENV Parameters

The following environment variables can be specified, overriding the parameter of the same name in the configuration file:

• QUORRA_USERNAME
• QUORRA_PASSWORD
• QUORRA_EXT_CERT
• QUORRA_EXT_KEY
• QUORRA_API_URL
• QUORRA_DATACENTER
• QUORRA_DATASTORE (overrides the default datastore only)
• QUORRA_HOST
• QUORRA_OVA

All other configuration parameters must be specified via the configuration file.