class VagrantPlugins::DockerProvider::Action::PrepareNFSSettings

Public Class Methods

new(app, env) click to toggle source
# File lib/docker-provider/action/prepare_nfs_settings.rb, line 9
def initialize(app, env)
  @app = app
  @logger = Log4r::Logger.new("vagrant::action::vm::nfs")
end

Public Instance Methods

add_ips_to_env!(env) click to toggle source

Extracts the proper host and guest IPs for NFS mounts and stores them in the environment for the SyncedFolder action to use them in mounting.

The ! indicates that this method modifies its argument.

# File lib/docker-provider/action/prepare_nfs_settings.rb, line 45
def add_ips_to_env!(env)
  provider = env[:machine].provider

  host_ip    = provider.driver.docker_bridge_ip
  machine_ip = provider.ssh_info[:host]

  raise Vagrant::Errors::NFSNoHostonlyNetwork if !host_ip || !machine_ip

  env[:nfs_host_ip]    = host_ip
  env[:nfs_machine_ip] = machine_ip
end
call(env) click to toggle source
# File lib/docker-provider/action/prepare_nfs_settings.rb, line 14
def call(env)
  @machine = env[:machine]

  @app.call(env)

  if using_nfs? && !privileged_container?
    raise Errors::NfsWithoutPrivilegedError
  end

  if using_nfs?
    @logger.info("Using NFS, preparing NFS settings by reading host IP and machine IP")
    add_ips_to_env!(env)
  end
end
privileged_container?() click to toggle source
# File lib/docker-provider/action/prepare_nfs_settings.rb, line 36
def privileged_container?
  @machine.provider.driver.privileged?(@machine.id)
end
using_nfs?() click to toggle source

We’re using NFS if we have any synced folder with NFS configured. If we are not using NFS we don’t need to do the extra work to populate these fields in the environment.

# File lib/docker-provider/action/prepare_nfs_settings.rb, line 32
def using_nfs?
  @machine.config.vm.synced_folders.any? { |_, opts| opts[:type] == :nfs }
end