I am running a Kubernetes cluster on CoreOS and using coreos/container-linux-update-operator to update each node in a controlled way. When I ssh into one of the nodes however I am getting the message Update Strategy: No Reboots, presumably because I have disabled and masked locksmithd.service (as it is no longer needed).
How can I stop that message from appearing? It isn't actually true since update-operator is handling updates instead.
This message is generated when /etc/profile.d/coreos-profile.sh is run. /etc/profile.d/coreos-profile.sh is a symlink to /usr/share/baselayout/coreos-profile.sh you should be able to remove the symlink in order to disable the message.
Note that this file is also runs this code to show a list of failed units, at logon.
FAILED=$(systemctl list-units --state=failed --no-legend)
if [[ ! -z "${FAILED}" ]]; then
COUNT=$(wc -l <<<"${FAILED}")
echo -e "Failed Units: \033[31m${COUNT}\033[39m"
awk '{ print " " $1 }' <<<"${FAILED}"
fiIf this was a show stopper you could copy this functionality to some other script in /etc/profile.d/
You can discover quite a lot about CoreOS Container linux by looking though the baselayout repository that contains a lot of the scripts and config files https://github.com/coreos/baselayout. You can find the script in question here: https://github.com/coreos/baselayout/blob/master/baselayout/coreos-profile.sh and the config used to generate the symlink here: https://github.com/coreos/baselayout/blob/master/tmpfiles.d/baselayout-etc.conf
There is an outstanding issue for this problem on github https://github.com/coreos/bugs/issues/1968