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Most images won't work without multiple ids/gids. Error out
immediately if there are no multiple ids available.
The error code when the user is not present in /etc/sub{g,u}id looks
like:
$ bin/podman run --rm -ti alpine echo hello
ERRO[0000] No subuid ranges found for user "gscrivano"
Closes: https://github.com/projectatomic/libpod/issues/1087
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Closes: #1097
Approved by: rhatdan
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rootless: unshare mount namespace
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unshare the mount namespace as well when creating an user namespace so
that we are the owner of the mount namespace and we can mount FUSE
file systems on Linux 4.18. Tested on Fedora Rawhide:
podman --storage-opt overlay.fuse_program=/usr/bin/fuse-overlayfs run alpine echo hello
hello
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
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Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
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use execvp instead of exec so that we keep the PATH environment
variable and the lookup for the "podman" executable works.
Closes: https://github.com/projectatomic/libpod/issues/1070
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Closes: #1072
Approved by: mheon
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The files were split apart by b96be3af (changes to allow for darwin
compilation, 2018-06-20, #1015), but the C import and two functions
left in rootless.go are all Linux-specific as well. This commit moves
all of the pre-b96be3af rootless.go into rootless_linux.go, just
adding the '// +build linux' header (b96be3af also scrambled the + in
that header) and keeping the new GetRootlessUID from a1545fe6
(rootless: add function to retrieve the original UID, 2018-07-05, #1048).
Signed-off-by: W. Trevor King <wking@tremily.us>
Closes: #1034
Approved by: baude
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this should represent the last major changes to get darwin to **compile**. again,
the purpose here is to get darwin to compile so that we can eventually implement a
ci task that would protect against regressions for darwin compilation.
i have left the manual darwin compilation largely static still and in fact now only
interject (manually) two build tags to assist with the build. trevor king has great
ideas on how to make this better and i will defer final implementation of those
to him.
Signed-off-by: baude <bbaude@redhat.com>
Closes: #1047
Approved by: rhatdan
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After we re-exec in the userNS os.Getuid() returns the new UID (= 0)
which is not what we want to use.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Closes: #1048
Approved by: mheon
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Signed-off-by: baude <bbaude@redhat.com>
Closes: #1015
Approved by: baude
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Additional groups are not allowed in an userNS.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Closes: #936
Approved by: rhatdan
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When running podman as non root user always create an userNS and let
the OCI runtime use it.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Closes: #936
Approved by: rhatdan
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