oci: Use WithReadonlyTempMount when adding users/groups#8351
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dmcgowan merged 1 commit intocontainerd:mainfrom Apr 5, 2023
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oci: Use WithReadonlyTempMount when adding users/groups#8351dmcgowan merged 1 commit intocontainerd:mainfrom
dmcgowan merged 1 commit intocontainerd:mainfrom
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Signed-off-by: Djordje Lukic <[email protected]>
thaJeztah
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cherry-pick/1.6.x
cherry-pick/1.7.x
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I added cherry-pick labels for this, as it reduces the risk of code diverging |
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derp; new code isn't doing the same, but actually fixing the overlay mounts (updated my previous comment) |
estesp
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Apr 5, 2023
dmcgowan
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Apr 5, 2023
This was referenced Apr 5, 2023
thaJeztah
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fuweid
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Apr 7, 2023
| // tryReadonlyMounts is used by the options which are trying to get user/group | ||
| // information from container's rootfs. Since the option does read operation | ||
| // only, this helper will append ReadOnly mount option to prevent linux kernel | ||
| // from syncing whole filesystem in umount syscall. |
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I think we should keep the comments here to know why we use readonly mount .... no just remove it
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This was referenced Apr 15, 2023
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The #8259 change added a new
WithReadonlyTempMountthat will force the mount to be readonly.This change removes the
tryReadonlyMountsand uses that function.Relates to #8259
Related: rumpl/moby#92 and moby/moby#45267
Note: once this PR is good to go I will backport these to 1.6 and 1.7, this is needed for moby's migration to the containerd image store and moby uses 1.6.x