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#!/usr/bin/env ruby
require 'trollop'
require 'rbvmomi'
require 'rbvmomi/trollop'
VIM = RbVmomi::VIM
CMDS = %w(mount unmount)
opts = Trollop.options do
banner <<-EOS
Mount/Unmount an NFS datastore from a cluster or single host system.
Usage:
nfs_datastore.rb [options] resource mount nfs-hostname:/remote/path [name]
nfs_datastore.rb [options] resource unmount nfs-hostname:/remote/path [name]
Commands: #{CMDS * ' '}
VIM connection options:
EOS
rbvmomi_connection_opts
text <<-EOS
VM location options:
EOS
rbvmomi_datacenter_opt
text <<-EOS
Other options:
EOS
stop_on CMDS
end
Trollop.die("must specify host") unless opts[:host]
cr_path = ARGV[0] or Trollop.die("no system name given")
cmd = ARGV[1] or Trollop.die("no command given")
abort "invalid command" unless CMDS.member? cmd
nfs_spec = ARGV[2] or Trollop.die("no nfs path given")
remoteHost, remotePath = nfs_spec.split(":")
localPath = ARGV[3] || remoteHost
mode = "readOnly" #hardcoded.
vim = VIM.connect opts
dc = vim.serviceInstance.find_datacenter(opts[:datacenter]) or abort "datacenter not found"
cr = dc.find_compute_resource(cr_path) || dc.hostFolder.children.find(cr_path).first
abort "compute resource not found" unless cr
case cr
when VIM::ClusterComputeResource
hosts = cr.host
when VIM::ComputeResource
hosts = [cr]
else
abort "invalid resource"
end
hosts.each do |host|
hds = host.configManager.datastoreSystem
ds = hds.datastore.select {|ds|
ds.info.respond_to?(:nas) and
ds.info.name == localPath and
ds.info.nas.remoteHost == remoteHost and
ds.info.nas.remotePath == remotePath
}.first
case cmd
when 'mount'
if ds
puts "already mounted on #{host.name} as #{ds.name}"
else
ds =
hds.CreateNasDatastore(:spec => VIM.HostNasVolumeSpec(:remoteHost => remoteHost,
:remotePath => remotePath,
:localPath => localPath,
:accessMode => mode))
puts "mounted on #{host.name} as #{ds.name}"
end
when 'unmount'
if ds
hds.RemoveDatastore(:datastore => ds)
puts "unmounted from #{host.name}"
else
puts "not mounted on #{host.name}"
end
else
abort "invalid command"
end
end
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