- Update to umoci v0.4.0. Upstream changelog:
+ `umoci repack` now supports `--refresh-bundle` which will update the
OCI bundle's metadata (mtree and umoci-specific manifests) after packing
the image tag. This means that the bundle can be used as a base layer for
future diffs without needing to unpack the image again.
openSUSE/umoci#196
+ Added a website, and reworked the documentation to be better structured.
You can visit the website at [`umo.ci`][umo.ci]. openSUSE/umoci#188
+ Added support for the `user.rootlesscontainers` specification, which
allows for persistent on-disk emulation of `chown(2)` inside rootless
containers. This implementation is interoperable with [@AkihiroSuda's
`PRoot` fork][as-proot-fork] (though we do not test its interoperability
at the moment) as both tools use [the same protobuf
specification][rootlesscontainers-proto]. openSUSE/umoci#227
+ `umoci unpack` now has support for opaque whiteouts (whiteouts which
remove all children of a directory in the lower layer), though `umoci
repack` does not currently have support for generating them. While this
is technically a spec requirement, through testing we've never
encountered an actual user of these whiteouts. openSUSE/umoci#224openSUSE/umoci#229
+ `umoci unpack` will now use some rootless tricks inside user namespaces
for operations that are known to fail (such as `mknod(2)`) while other
operations will be carried out as normal (such as `lchown(2)`). It should
be noted that the `/proc/self/uid_map` checking we do can be tricked into
not detecting user namespaces, but you would need to be trying to break
it on purpose. openSUSE/umoci#171openSUSE/umoci#230
* Fix a bug in our "parent directory restore" code, which is responsible
for ensuring that the mtime and other similar properties of a directory
are not modified by extraction inside said directory. The bug would
manifest as xattrs not being restored properly in certain edge-cases
(which we incidentally hit in a test-case). openSUSE/umoci#161openSUSE/umoci#162
* `umoci unpack` will now "clean up" the bundle generated if an error
occurs during unpacking. Previously this didn't happen, which made
cleaning up the responsibility of the caller (which was quite difficult
if you were unprivileged). This is a breaking change, but is in the error
path so it's not critical. openSUSE/umoci#174openSUSE/umoci#187
* `umoci gc` now will no longer remove unknown files and directories that
aren't `flock(2)`ed, thus ensuring that any possible OCI image-spec
extensions or other users of an image being operated on will no longer
break. openSUSE/umoci#198
* `umoci unpack --rootless` will now correctly handle regular file
unpacking when overwriting a file that `umoci` doesn't have write access
to. In addition, the semantics of pre-existing hardlinks to a clobbered
file are clarified (the hard-links will not refer to the new layer's
inode). openSUSE/umoci#222openSUSE/umoci#223
[as-proot-fork]: https://github.com/AkihiroSuda/runrootless
[rootlesscontainers-proto]: https://rootlesscontaine.rs/proto/rootlesscontainers.proto
[umo.ci]: https://umo.ci/
OBS-URL: https://build.opensuse.org/request/show/585262
OBS-URL: https://build.opensuse.org/package/show/Virtualization:containers/umoci?expand=0&rev=30
Aleksa Sarai