[Unit]
Description=Serve metadata to machines in the lab.
Requires=network-online.target
After=network-online.target
# Prevent systemd from giving up restarting the service if it keeps crashing. This is useful e.g.
# when power is restored after a power outage, but internet connectivity hasn't been restored yet,
# causing services that depend on external APIs to repeatedly crash until access to the internet is
# restored.
#
# These settings tell systemd to restart the crashing service every 10 seconds (see RestartSec=
# below), and to stop trying to restart it if it crashes more than 1000 times (StartLimitBurst=)
# within an interval of 1 second (StartLimitIntervalSec=), effectively never giving up.
#
# Docs:
# - https://www.freedesktop.org/software/systemd/man/systemd.unit.html
# - https://www.freedesktop.org/software/systemd/man/systemd.service.html
StartLimitIntervalSec=1
StartLimitBurst=1000

[Service]
ExecStart=/usr/local/bin/metadata-server \
  --port=:80 \
  --prom_port=:20003
Restart=always
RestartSec=10
User=chrome-bot
Group=chrome-bot
AmbientCapabilities=CAP_NET_BIND_SERVICE

[Install]
WantedBy=multi-user.target