[rrdtool-maint] Bug#981191: rrdcached fails to remove its own pidfile/socket in certain configurations

[Michael]

Package: rrdcached
Version: 1.7.1-2
Severity: normal

Dear Maintainer,

It looks a lot like setting DAEMON_USER to non-root renders rrdcached unable
to clean up its own pidfile and socket, which are usually owned by root. I
feel that this is a bug. I am attempting to follow best practice by not
running the daemon as root (and choosing the munin user seems a sensible
choice).

-- System Information:
Debian Release: 10.7
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'oldstable-updates'), (500, 'stable'), (500, 'oldstable'), (480, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 4.19.0-13-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8), LANGUAGE=en_AU:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages rrdcached depends on:
ii  libc6                2.28-10
ii  libcairo2            1.16.0-4
ii  libdbi1              0.9.0-5
ii  libglib2.0-0         2.58.3-2+deb10u2
ii  libpango-1.0-0       1.42.4-8~deb10u1
ii  libpangocairo-1.0-0  1.42.4-8~deb10u1
ii  libpng16-16          1.6.36-6
ii  librrd8              1.7.1-2
ii  libxml2              2.9.4+dfsg1-7+deb10u1
ii  lsb-base             10.2019051400

rrdcached recommends no packages.

rrdcached suggests no packages.

-- Configuration Files:
/etc/default/rrdcached changed:
DAEMON=/usr/bin/rrdcached
BASE_PATH=/var/lib/rrdcached/db/
JOURNAL_PATH=/var/lib/rrdcached/journal/
PIDFILE=/var/run/rrdcached.pid
SOCKFILE=/var/run/rrdcached.sock
BASE_OPTIONS="-B"
DAEMON_GROUP=munin
DAEMON_USER=munin
JOURNAL_PATH=/var/lib/munin/journal
SOCKGROUP=rrdcached
SOCKMODE=0660
BASE_PATH=/var/lib/munin/
OPTS="-w 600 -z 600"


-- no debconf information

-MD

-- 
-----------------------------------------------------------------------------
Michael Deegan               Hugaholic              https://www.deegan.id.au/
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