120 lines
4.1 KiB
Ruby
120 lines
4.1 KiB
Ruby
require "vagrant/action/builtin/mixin_synced_folders"
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module VagrantPlugins
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module ProviderVirtualBox
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module Action
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class PrepareNFSSettings
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include Vagrant::Action::Builtin::MixinSyncedFolders
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include Vagrant::Util::Retryable
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def initialize(app, env)
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@app = app
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@logger = Log4r::Logger.new("vagrant::action::vm::nfs")
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end
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def call(env)
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@machine = env[:machine]
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@app.call(env)
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opts = {
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cached: !!env[:synced_folders_cached],
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config: env[:synced_folders_config],
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disable_usable_check: !!env[:test],
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}
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folders = synced_folders(env[:machine], **opts)
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if folders.key?(:nfs)
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@logger.info("Using NFS, preparing NFS settings by reading host IP and machine IP")
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add_ips_to_env!(env)
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end
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end
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# Extracts the proper host and guest IPs for NFS mounts and stores them
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# in the environment for the SyncedFolder action to use them in
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# mounting.
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#
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# The ! indicates that this method modifies its argument.
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def add_ips_to_env!(env)
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adapter, host_ip = find_host_only_adapter
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machine_ip = read_static_machine_ips || read_dynamic_machine_ip(adapter)
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raise Vagrant::Errors::NFSNoHostonlyNetwork if !host_ip || !machine_ip
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env[:nfs_host_ip] = host_ip
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env[:nfs_machine_ip] = machine_ip
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end
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# Finds first host only network adapter and returns its adapter number
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# and IP address
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#
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# @return [Integer, String] adapter number, ip address of found host-only adapter
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def find_host_only_adapter
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@machine.provider.driver.read_network_interfaces.each do |adapter, opts|
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if opts[:type] == :hostonly
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@machine.provider.driver.read_host_only_interfaces.each do |interface|
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if interface[:name] == opts[:hostonly]
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return adapter, interface[:ip]
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end
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end
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end
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end
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nil
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end
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# Returns the IP address(es) of the guest by looking for static IPs
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# given to host only adapters in the Vagrantfile
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#
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# @return [Array]<String> Configured static IPs
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def read_static_machine_ips
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ips = []
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@machine.config.vm.networks.each do |type, options|
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if type == :private_network && options[:type] != :dhcp && options[:ip].is_a?(String)
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ips << options[:ip]
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end
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end
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if ips.empty?
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return nil
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end
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ips
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end
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# Returns the IP address of the guest by looking at vbox guest property
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# for the appropriate guest adapter.
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#
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# For DHCP interfaces, the guest property will not be present until the
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# guest completes
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#
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# @param [Integer] adapter number to read IP for
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# @return [String] ip address of adapter
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def read_dynamic_machine_ip(adapter)
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return nil unless adapter
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# vbox guest properties are 0-indexed, while showvminfo network
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# interfaces are 1-indexed. go figure.
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guestproperty_adapter = adapter - 1
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# we need to wait for the guest's IP to show up as a guest property.
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# retry thresholds are relatively high since we might need to wait
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# for DHCP, but even static IPs can take a second or two to appear.
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retryable(retry_options.merge(on: Vagrant::Errors::VirtualBoxGuestPropertyNotFound)) do
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@machine.provider.driver.read_guest_ip(guestproperty_adapter)
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end
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rescue Vagrant::Errors::VirtualBoxGuestPropertyNotFound
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# this error is more specific with a better error message directing
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# the user towards the fact that it's probably a reportable bug
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raise Vagrant::Errors::NFSNoGuestIP
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end
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# Separating these out so we can stub out the sleep in tests
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def retry_options
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{tries: 15, sleep: 1}
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end
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end
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end
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end
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end
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