[Unit]
Description=Vanguard deadman: is the alerting stack itself alive, and are the disks ok
After=docker.service

[Service]
Type=oneshot
# Written by configure.py from .env (HEARTBEAT_MAX_S, ALERT_INDEX). A timer never reads the repo's .env, so without
# this the tunables were settable in name only. The leading - means "carry on if it is absent".
EnvironmentFile=-/etc/vanguard/alerts.env
ExecStart=/usr/local/bin/vanguard-deadman.sh