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2022-07-27meta-netboot: Add SELinux supportScott Murray2-0/+35
Changes: - Add logic to init.sh to handle autorelabeling the root filesystem if it is tagged as requiring it. In practice this should only be required when booting images built on hosts that have xattr support, or if relabeling is manually triggered on subsequent boots. There was a stated goal of avoiding the reboot from the later userspace handling of autorelabeling in CI, so this hook aims to enable that for the non-xattr build host corner case. - Add a resolv-conf-relabel recipe that installs a systemd unit to relabel /etc/resolv.conf when netbooting. This is required because the file always gets modified inside init.sh, and it does not seem worthwhile to always do the extra policy load required to relabel it in the initramfs. This may need to be revisited if it proves difficult to handle denials in early booting when netbooting. - Add the required extra packages for relabeling to IMAGE_INSTALL. Bug-AGL: SPEC-4332 Signed-off-by: Scott Murray <scott.murray@konsulko.com> Change-Id: I26b27c1cea68a029264352bd206c160cac3d451e Reviewed-on: https://gerrit.automotivelinux.org/gerrit/c/AGL/meta-agl/+/27791 Tested-by: Jenkins Job builder account ci-image-build: Jenkins Job builder account ci-image-boot-test: Jenkins Job builder account Reviewed-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>