Deprecate legacy overlay storage driver #1425
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The `overlay` storage driver is deprecated in favor of the `overlay2` storage driver, which has all the benefits of `overlay`, without its limitations (excessive inode consumption). The legacy `overlay` storage driver will be removed in a future release. Users of the `overlay` storage driver should migrate to the `overlay2` storage driver. The legacy `overlay` storage driver allowed using overlayFS-backed filesystems on pre 4.x kernels. Now that all supported distributions are able to run `overlay2` (as they are either on kernel 4.x, or have support for multiple lowerdirs backported), there is no reason to keep maintaining the `overlay` storage driver. Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Codecov Report
@@ Coverage Diff @@
## master #1425 +/- ##
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Coverage 54.27% 54.27%
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Files 289 289
Lines 19337 19337
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Hits 10496 10496
Misses 8165 8165
Partials 676 676 |
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Can we have |
@AkihiroSuda yes, I was thinking of adding that |
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Aside from this PR, can we deprecate AUFS as well? |
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Yes, aufs could definitely be a candidate as well, now that support for Ubuntu 14.04 is dropped (which, I think was the only distro that actively used it) |
This was referenced Oct 11, 2018
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Warning can go in a separate PR, getting these docs in is good. |
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The
overlaystorage driver is deprecated in favor of theoverlay2storagedriver, which has all the benefits of
overlay, without its limitations (excessiveinode consumption). The legacy
overlaystorage driver will be removed in a futurerelease. Users of the
overlaystorage driver should migrate to theoverlay2storage driver.
The legacy
overlaystorage driver allowed using overlayFS-backed filesystemson pre 4.x kernels. Now that all supported distributions are able to run
overlay2(as they are either on kernel 4.x, or have support for multiple lowerdirs
backported), there is no reason to keep maintaining the
overlaystorage driver.related issue in the documentation repository: docker/docs#7439