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[18.09 backport] Skip deprecated storage-drivers in auto-selection#90
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The `devicemapper` storage driver is deprecated in favor of `overlay2`, and will be removed in a future release. Users of the `devicemapper` storage driver are recommended to migrate to a different storage driver, such as `overlay2`, which is now the default storage driver. The `devicemapper` storage driver facilitates running Docker on older (3.x) kernels that have no support for other storage drivers (such as overlay2, or AUFS). Now that support for `overlay2` is added to all supported distros (as they are either on kernel 4.x, or have support for multiple lowerdirs backported), there is no reason to continue maintenance of the `devicemapper` storage driver. Signed-off-by: Sebastiaan van Stijn <github@gone.nl> (cherry picked from commit 06fcabb) Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
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> (cherry picked from commit 31be4e0) Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Discourage users from using deprecated storage-drivers by skipping them when automatically selecting a storage- driver. This change does not affect existing installations, because existing state will take precedence. Users can still use deprecated drivers by manually configuring the daemon to use a specific driver. Signed-off-by: Sebastiaan van Stijn <github@gone.nl> (cherry picked from commit b72db8b)
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ping @andrewhsu @mavenugo @mataneja |
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Windows failure is not related; |
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@thaJeztah the recommendation for the 18.09 release is to just set the deprecation notice and not to make any logic change (including automatic detection). IDK if the proposed change will satisfy that recommendation. |
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#85 (the PR that this one is built on top off) only adds the deprecation warnings (in logs, and in the output of |
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Closing this one for now |
thaJeztah
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backport of moby#38019 for 18.09
PR is based on top of #85 to get a clean cherry-pick; only the last commit is new