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Vagrant::Persistent-Storage

A Vagrant plugin that creates a persistent storage and attaches it to guest machine.

Requires Virtualbox 5

Installation

$ vagrant plugin install vagrant-persistent-storage

Usage

After installing you can set the location and size of the persistent storage.

The following options will create a persistent storage with 5000 MB, named mysql, mounted on /var/lib/mysql, in a volume group called 'vagrant'

config.persistent_storage.enabled = true
config.persistent_storage.location = "~/development/sourcehdd.vdi"
config.persistent_storage.size = 5000
config.persistent_storage.mountname = 'mysql'
config.persistent_storage.filesystem = 'ext4'
config.persistent_storage.mountpoint = '/var/lib/mysql'
config.persistent_storage.volgroupname = 'myvolgroup'

With config.persistent_storage.mountoptions you can change the mount options (default: defaults).
A example which sets prjquota option with xfs.

config.persistent_storage.mountname    = 'xfs'
config.persistent_storage.filesystem   = 'xfs'
config.persistent_storage.mountpoint   = '/mnt/xfs'
config.persistent_storage.mountoptions = ['defaults', 'prjquota']

Device defaults to /dev/sdb. For boxes with multiple disks, make sure you increment the drive:

config.persistent_storage.diskdevice = '/dev/sdc'

If you are using LVM and you would prefer to use the disk rather than a partition, you can set the following configuration:

config.persistent_storage.partition = false

Every vagrant up will attach this file as hard disk to the guest machine. A vagrant destroy will detach the storage to avoid deletion of the storage by vagrant. A vagrant destroy generally destroys all attached drives. See VBoxMange unregistervm --delete option.

The disk is initialized and added to it's own volume group as specfied in the config; this defaults to 'vagrant'. An ext4 filesystem is created and the disk mounted appropriately, with entries added to fstab ... subsequent runs will mount this disk with the options specified.

Windows Guests

Windows Guests must use the WinRM communicator by setting vm.communicator = 'winrm'. An additional option is provided to allow you to set the drive letter using:

config.persistent_storage.drive_letter = 'Z'

Options that are irrelevent to Windows are ignored, such as mountname, filesystem, mountpoint and volgroupname.

How Is The Storage Created?

Based on the configuration provided, during a vagrant up a bash script is generated and uploaded to /tmp/disk_operations_#{mnt_name}.sh (Linux) or disk_operations_#{mnt_name}.ps1 (Windows). If the box has not been previously provisioned the script is executed on a vagrant up. To force the scrip to be executed again you can run vagrant provision or if you have halted the box, vagrant up --provision.

The outcome of the script being run is placed in the home drive of the vagrant user in a file called disk_operation_log.txt.

Troubleshooting

If your box are not using LVM you must set config.persistent_storage.use_lvm = false.

Supported Providers

  • Only the VirtualBox provider is supported.

Contributors

TODO

  • There's Always Something to Do
  • Add more options (controller, port, etc.)