Whenever dev/null is used as one of the main processes STDIO, do not try
to change the permissions on it via fchown because we should not do it
in the first place and also this will fail if the container is supposed
to be readonly.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Fix the permissions of the container's main processes STDIO when the
process is not run as the root user. This changes the permissions right
before switching to the specified user so that it's STDIO matches it's
UID and GID.
Add a test for checking that the STDIO of the process is owned by the
specified user.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
This removes the existing, native Go seccomp filter generation and replaces it
with Libseccomp. Libseccomp is a C library which provides architecture
independent generation of Seccomp filters for the Linux kernel.
This adds a dependency on v2.2.1 or above of Libseccomp.
Signed-off-by: Matthew Heon <mheon@redhat.com>
Michael Crosby
Alexander Morozov
Vishnu Kannan
Matthew Heon
Jin-Hwan Jeong