geteduroam-ops/global/overlay/usr/local/bin/run-cosmos
2023-02-06 16:47:30 +01:00

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#!/bin/bash
#
# Simplify running cosmos, with serialization if flock is available.
#
readonly PROGNAME=$(basename "$0")
readonly LOCKFILE_DIR=/tmp
readonly LOCK_FD=200
lock() {
local prefix=$1
local fd=${2:-$LOCK_FD}
local lock_file=$LOCKFILE_DIR/$prefix.lock
# create lock file
eval "exec $fd>$lock_file"
# acquier the lock
flock -n "$fd" \
&& return 0 \
|| return 1
}
eexit() {
local error_str="$*"
echo "$error_str"
exit 1
}
main () {
lock "$PROGNAME" || eexit "Only one instance of $PROGNAME can run at one time."
cosmos "$@" update
cosmos "$@" apply
touch /var/run/last-cosmos-ok.stamp
find /var/lib/puppet/reports/ -type f -mtime +10 -print0 | xargs -0 rm -f
}
main "$@"
if [ -f /cosmos-reboot ]; then
rm -f /cosmos-reboot
reboot
fi