coreos-base/(ue-rs|update_engine): Control extracted OEM payload name

[pothos]

This pulls in flatcar/ue-rs#49 and flatcar/update_engine#36 to fix the handling of OEM update payloads in a Nebraska response with self-hosted packages. Before this fix the processing failed and had to rely on the fallback download from the release server.

How to use

Backport to new Alpha

Testing done

Tested that updating to the built payload works when using this patch for flatcar-update and running sudo ./flatcar-update -V 1.2.3 -D -P flatcar_test_update.gz -E extrafile-amd64-3760.1.1-oem-qemu.gz:

diff --git a/bin/flatcar-update b/bin/flatcar-update
index d1ca303..42bf086 100755
--- a/bin/flatcar-update
+++ b/bin/flatcar-update
@@ -59,9 +59,6 @@ while true; do
     if [ "$1" = "" ]; then
       echo "Error: --extension must not have an empty value" > /dev/stderr ; exit 1
     fi
-    if [[ ! "$(basename -- "$1")" =~ ^(flatcar|oem).*gz$ ]]; then
-      echo "Error: --extension expects paths to files named oem-OEMID.gz or flatcar-NAME.gz (with possible 'flatcar_test_update-' prefix), found: $1" > /dev/stderr ; exit 1
-    fi
     EXTENSIONS+=("$1")
     ;;
   -L|--listen-port-1)
@@ -121,8 +118,6 @@ OEMID=$({ grep -m 1 -o "^ID=.*" /usr/share/oem/oem-release 2> /dev/null || true
 if [ "${OEMID}" != "" ] && { [ -e "/usr/share/flatcar/oems/${OEMID}" ] || [ -e "/usr/share/oem/sysext/active-oem-${OEMID}" ]; }; then
   if [ "$PAYLOAD" = "" ]; then
     EXTENSIONS+=("/var/tmp/flatcar-update/oem-${OEMID}.gz")
-  elif ! echo " ${EXTENSIONS[*]} " | grep -q -P "[ /](flatcar_test_update-)?oem-${OEMID}.gz "; then # Surrounded with space to only match base name
-    echo "Error: system requires '${OEMID}' OEM extension but not passed in --extension" > /dev/stderr ; exit 1
   fi
 fi
 for NAME in $(grep -h -o '^[^#]*' /etc/flatcar/enabled-sysext.conf /usr/share/flatcar/enabled-sysext.conf 2> /dev/null | grep -v -x -f <(grep '^-' /etc/flatcar/enabled-sysext.conf 2> /dev/null | cut -d - -f 2-) | grep -v -P '^(-).*'); do

Jenkins build

• Changelog entries added in the respective changelog/ directory (user-facing change, bug fix, security fix, update)
• Inspected CI output for image differences: /boot and /usr size, packages, list files for any missing binaries, kernel modules, config files, kernel modules, etc.

[github-actions]

Build action triggered: https://github.com/flatcar/scripts/actions/runs/8047475506

[dongsupark]

CROS_WORKON_COMMITs need updates before merging it.

[jepio]

We need this in stable too, i'm going to prepare a PR with a backport.

[jepio]

Stable isn't using ue-rs yet.

@pothos Do you prefer to update stable to ue-rs or flatcar/update_engine#39?

[pothos]

Your prepared fix looks good, thanks