84 lines
2.6 KiB
Ruby
84 lines
2.6 KiB
Ruby
require 'fileutils'
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require 'zlib'
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require "vagrant/util/platform"
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module VagrantPlugins
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module SyncedFolderNFS
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# This synced folder requires that two keys be set on the environment
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# within the middleware sequence:
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#
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# - `:nfs_host_ip` - The IP of where to mount the NFS folder from.
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# - `:nfs_machine_ip` - The IP of the machine where the NFS folder
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# will be mounted.
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#
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class SyncedFolder < Vagrant.plugin("2", :synced_folder)
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def usable?(machine)
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# NFS is always available
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true
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end
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def prepare(machine, folders, opts)
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# Nothing is necessary to do before VM boot.
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end
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def enable(machine, folders, nfsopts)
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raise Errors::NFSNoHostIP if !nfsopts[:nfs_host_ip]
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raise Errors::NFSNoGuestIP if !nfsopts[:nfs_machine_ip]
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machine_ip = nfsopts[:nfs_machine_ip]
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machine_ip = [machine_ip] if !machine_ip.is_a?(Array)
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# Prepare the folder, this means setting up various options
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# and such on the folder itself.
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folders.each { |id, opts| prepare_folder(machine, opts) }
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# Export the folders
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machine.ui.info I18n.t("vagrant.actions.vm.nfs.exporting")
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machine.env.host.nfs_export(machine.id, machine_ip, folders)
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# Mount
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machine.ui.info I18n.t("vagrant.actions.vm.nfs.mounting")
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# Only mount folders that have a guest path specified.
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mount_folders = {}
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folders.each do |id, opts|
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mount_folders[id] = opts.dup if opts[:guestpath]
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end
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# Mount them!
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machine.guest.capability(
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:mount_nfs_folder, nfsopts[:nfs_host_ip], mount_folders)
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end
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protected
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def prepare_folder(machine, opts)
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opts[:map_uid] = prepare_permission(machine, :uid, opts)
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opts[:map_gid] = prepare_permission(machine, :gid, opts)
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opts[:nfs_version] ||= 3
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# We use a CRC32 to generate a 32-bit checksum so that the
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# fsid is compatible with both old and new kernels.
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opts[:uuid] = Zlib.crc32(opts[:hostpath]).to_s
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end
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# Prepares the UID/GID settings for a single folder.
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def prepare_permission(machine, perm, opts)
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key = "map_#{perm}".to_sym
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return nil if opts.has_key?(key) && opts[key].nil?
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# The options on the hash get priority, then the default
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# values
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value = opts.has_key?(key) ? opts[key] : machine.config.nfs.send(key)
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return value if value != :auto
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# Get UID/GID from folder if we've made it this far
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# (value == :auto)
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stat = File.stat(opts[:hostpath])
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return stat.send(perm)
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end
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end
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end
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end
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