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image-builder: check /sbin/init when AGENT_INIT=yes

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kata-agent is moved to /sbin/init when AGENT_INIT is yes. Check
/sbin/init exists and it's not systemd

fixes #322

Signed-off-by: Julio Montes <julio.montes@intel.com>
This commit is contained in:
Julio Montes 2019-07-29 20:53:00 +00:00
parent 73cee17420
commit b1b8ce427a
1 changed files with 10 additions and 3 deletions
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13
image-builder/image_builder.sh
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@ -180,11 +180,12 @@ check_rootfs() {
OK "init is installed"
systemd_path="/lib/systemd/systemd"
systemd="${rootfs}${systemd_path}"
# check agent or systemd
case "${AGENT_INIT}" in
"no")
systemd_path="/lib/systemd/systemd"
systemd="${rootfs}${systemd_path}"
if [ ! -x "${systemd}" ] && [ ! -L "${systemd}" ]; then
error "${systemd_path} is not installed in ${rootfs}"
return 1
@ -193,12 +194,18 @@ check_rootfs() {
;;
"yes")
agent_path="/usr/bin/${AGENT_BIN}"
agent_path="/sbin/init"
agent="${rootfs}${agent_path}"
if [ ! -x "${agent}" ]; then
error "${agent_path} is not installed in ${rootfs}. Use AGENT_BIN env variable to change the expected agent binary name"
return 1
fi
# checksum must be different to system
if [ -f "${systemd}" ] && cmp -s "${systemd}" "${agent}"; then
error "The agent is not the init process. ${agent_path} is systemd"
return 1
fi
OK "Agent installed"
;;