[pkg-go] Bug#891202: prometheus-alertmanager: False owner/group for /var/lib/prometheus

[Tuxcoder]

Forgot to add the the logs

Feb 23 10:53:10 debian9_prometheus systemd[1]: Started Alertmanager for
prometheus.
Feb 23 10:53:10 debian9_prometheus prometheus-alertmanager[21000]:
time="2018-02-23T10:53:10Z" level=info msg="Starting alertmanager
(version=0.5.1+ds, branch=debian/sid, revision=0.5.1+ds-7+b2)"
source="main.go:102"
Feb 23 10:53:10 debian9_prometheus prometheus-alertmanager[21000]:
time="2018-02-23T10:53:10Z" level=info msg="Build context (go=go1.7.4,
user=pkg-go-maintainers at lists.alioth.debian.org,
date=20170116-03:56:46)" source="main.go:103"
Feb 23 10:53:10 debian9_prometheus prometheus-alertmanager[21000]:
time="2018-02-23T10:53:10Z" level=fatal msg="mkdir
/var/lib/prometheus/alertmanager/: permission denied" source="main.go:107"
Feb 23 10:53:10 debian9_prometheus systemd[1]:
prometheus-alertmanager.service: Main process exited, code=exited,
status=1/FAILURE
Feb 23 10:53:10 debian9_prometheus systemd[1]:
prometheus-alertmanager.service: Unit entered failed state.
Feb 23 10:53:10 debian9_prometheus systemd[1]:
prometheus-alertmanager.service: Failed with result 'exit-code'.
Feb 23 10:53:10 debian9_prometheus systemd[1]:
prometheus-alertmanager.service: Service hold-off time over, scheduling
restart.
Feb 23 10:53:10 debian9_prometheus systemd[1]: Stopped Alertmanager for
prometheus.