devmapper: update example base image size in README
base_image_size effectively is the limit of a layer size that can be created using the devmapper snapshotter. While this will also depend on the thinpool size itself, something closer to the total image size (80%?) is more appropriate. As is, if you try to run an image like elastic, you'll need a much larger base_image_size than 128MB. Signed-off-by: Eric Ernst <eric.ernst@intel.com>
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@ -15,7 +15,7 @@ Here's minimal sample entry that can be made in the configuration file:
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[plugins.devmapper]
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pool_name = "containerd-pool"
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base_image_size = "128MB"
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base_image_size = "8192MB"
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```
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