Class: Elasticsnap::FreezeFs

Inherits:
Object
  • Object
show all
Defined in:
lib/elasticsnap/freeze_fs.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(mount: nil, security_group: nil, ssh_user: nil) ⇒ FreezeFs

Returns a new instance of FreezeFs.

Raises:

  • (ArgumentError) 


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# File 'lib/elasticsnap/freeze_fs.rb', line 9

def initialize(mount: nil, security_group: nil, ssh_user: nil)
  raise ArgumentError, 'mount required' if mount.nil?
  raise ArgumentError, 'security_group required' if security_group.nil?

  @mount = mount
  @security_group = security_group
  @ssh_user = ssh_user
end

Instance Attribute Details

#mount ⇒ Object

Returns the value of attribute mount.



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# File 'lib/elasticsnap/freeze_fs.rb', line 5

def mount
  @mount
end

#security_group ⇒ Object

Returns the value of attribute security_group.



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# File 'lib/elasticsnap/freeze_fs.rb', line 6

def security_group
  @security_group
end

#ssh_user ⇒ Object

Returns the value of attribute ssh_user.



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# File 'lib/elasticsnap/freeze_fs.rb', line 7

def ssh_user
  @ssh_user
end

Instance Method Details

#freeze(&block) ⇒ Object 



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# File 'lib/elasticsnap/freeze_fs.rb', line 18

def freeze(&block)
  begin
    sync
    freeze_fs

    block.call unless block.nil?
  ensure
    unfreeze_fs
  end
end

#freeze_fs ⇒ Object 



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# File 'lib/elasticsnap/freeze_fs.rb', line 33

def freeze_fs
  run_command 'sudo fsfreeze', '-f', mount
end

#sync ⇒ Object 



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# File 'lib/elasticsnap/freeze_fs.rb', line 29

def sync
  run_command('sudo sync')
end

#unfreeze_fs ⇒ Object 



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# File 'lib/elasticsnap/freeze_fs.rb', line 37

def unfreeze_fs
  run_command 'sudo fsfreeze', '-u', mount
end