Improve options help for image caching
Point how to turn image caching off. Change-Id: I75e7aac5ca5120839ed7ca2ba43d40c981790f40
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@ -1886,7 +1886,8 @@
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#images_path=/var/lib/ironic/images/
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# On the ironic-conductor node, directory where master
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# instance images are stored on disk. (string value)
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# instance images are stored on disk. Setting to <None>
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# disables image caching. (string value)
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#instance_master_path=/var/lib/ironic/master_images
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# Maximum size (in MiB) of cache for master images, including
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@ -1923,7 +1924,8 @@
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#tftp_root=/tftpboot
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# On ironic-conductor node, directory where master TFTP images
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# are stored on disk. (string value)
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# are stored on disk. Setting to <None> disables image
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# caching. (string value)
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#tftp_master_path=/tftpboot/master_images
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# Bootfile DHCP parameter. (string value)
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@ -64,6 +64,7 @@ class ImageCache(object):
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"""Constructor.
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:param master_dir: cache directory to work on
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Value of None disables image caching.
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:param cache_size: desired maximum cache size in bytes
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:param cache_ttl: cache entity TTL in seconds
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"""
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@ -60,7 +60,8 @@ pxe_opts = [
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cfg.StrOpt('instance_master_path',
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default='/var/lib/ironic/master_images',
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help=_('On the ironic-conductor node, directory where master '
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'instance images are stored on disk.')),
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'instance images are stored on disk. '
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'Setting to <None> disables image caching.')),
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cfg.IntOpt('image_cache_size',
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default=20480,
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help=_('Maximum size (in MiB) of cache for master images, '
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@ -63,7 +63,8 @@ pxe_opts = [
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cfg.StrOpt('tftp_master_path',
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default='/tftpboot/master_images',
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help=_('On ironic-conductor node, directory where master TFTP '
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'images are stored on disk.')),
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'images are stored on disk. '
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'Setting to <None> disables image caching.')),
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# NOTE(dekehn): Additional boot files options may be created in the event
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# other architectures require different boot files.
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cfg.StrOpt('pxe_bootfile_name',
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