Steve Smith scsmith

## docker_for_mac_disk_default_size.md

      
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                stefanfoulis
                / docker_for_mac_disk_default_size.md
            
            
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              June 29, 2023 12:02
            
              
                How to resize Docker for Mac Disk image and set the default size for new images
              
          
    Set the default size for new Docker for Mac disk images

UPDATE: The instructions here are no longer necessary! Resizing the disk image is now possible right from the UI since Docker for Mac Version 17.12.0-ce-mac49 (21995).
If you are getting the error: No space left on device
Configuring the qcow2 size cap is possible in the current versions:
# my disk is currently 64GiB


## disk_writer.rb
class DiskWriter < EM::Connection
  # A random stab in the dark at somethign that's loosely efficient. Assuming
  # you have a larger page size than 4kb, you'll probably still want ruby to
  # write a ton of pages at a time to anything resembling a spindle. On most
  # systems, this will default to 64kb. It's possible you may get better
  # performance going much higher. If you end up GC bound, or other operations
  # are causing leak like behavior, then you may find higher tunings become
  # less efficient in production over time. It is also worth noting that some
  # versions ::Queue do not free their buffer pages.
  DEFAULT_THRESHOLD = 16384 * `getconf PAGESIZE`.to_i

## gist:885876
handler = MailHandler()
handler.register_address(
    address="000000000000000000@cloudmailin.com",
    secret="secret-key-from-cloudmailin",
    callback=create_post,
)

urlpatterns = patterns('',
    url(r'^postbymail/$', mail_handler),
)
	class DiskWriter < EM::Connection
	# A random stab in the dark at somethign that's loosely efficient. Assuming
	# you have a larger page size than 4kb, you'll probably still want ruby to
	# write a ton of pages at a time to anything resembling a spindle. On most
	# systems, this will default to 64kb. It's possible you may get better
	# performance going much higher. If you end up GC bound, or other operations
	# are causing leak like behavior, then you may find higher tunings become
	# less efficient in production over time. It is also worth noting that some
	# versions ::Queue do not free their buffer pages.
	DEFAULT_THRESHOLD = 16384 * `getconf PAGESIZE`.to_i
	handler = MailHandler()
	handler.register_address(
	address="000000000000000000@cloudmailin.com",
	secret="secret-key-from-cloudmailin",
	callback=create_post,
	)

	urlpatterns = patterns('',
	url(r'^postbymail/$', mail_handler),
	)