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DescriptionDustin C. Hatch
2016-06-08 15:43:06 UTC
Description of problem:
The collectd-postgresql plugin cannot connect to a locally-running PostgreSQL instance via UNIX socket because of this AVC denial:
type=AVC msg=audit(1465396307.731:4222): avc: denied { write } for pid=20104 comm="collectd" name=".s.PGSQL.5432" dev="tmpfs" ino=36537 scontext=system_u:system_r:collectd_t:s0 tcontext=system_u:object_r:postgresql_var_run_t:s0 tclass=sock_file
Version-Release number of selected component (if applicable):
collectd-5.5.1-3.el7.x86_64
collectd-postgresql-5.5.1-3.el7.x86_64
selinux-policy-3.13.1-60.el7_2.3.noarch
selinux-policy-targeted-3.13.1-60.el7_2.3.noarch
How reproducible:
Always
Steps to Reproduce:
1. Install collectd and collectd-postgresql (from EPEL)
2. Add <Plugin postgresql> and <Database {name}> entries to collectd.conf, using a filesystem directory for Host, e.g.
LoadPlugin postgresql
<Plugin postgresql>
<Database postgres>
Host "/run/postgresql"
User postgres
</Database>
</Plugin>
3. Start collectd and observe an error like this in syslog
Jun 8 14:31:47 fmosng-56d3ff collectd[20094]: Failed to connect to database postgres (postgres): could not connect to server: Permission denied#012#011Is the server running locally and accepting#012#011connections on Unix domain socket "/run/postgresql/.s.PGSQL.5432"?
Actual results:
collectd is unable to connect to the database instance
Expected results:
collectd should be able to connect to the database instance
Additional info:
The following policy modification resolves the issue:
policy_module(collectdlocal, 1.0.0)
gen_require(`
type collectd_t;
')
optional_policy(`
postgresql_stream_connect(collectd_t)
')
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://rhn.redhat.com/errata/RHBA-2016-2283.html
Description of problem: The collectd-postgresql plugin cannot connect to a locally-running PostgreSQL instance via UNIX socket because of this AVC denial: type=AVC msg=audit(1465396307.731:4222): avc: denied { write } for pid=20104 comm="collectd" name=".s.PGSQL.5432" dev="tmpfs" ino=36537 scontext=system_u:system_r:collectd_t:s0 tcontext=system_u:object_r:postgresql_var_run_t:s0 tclass=sock_file Version-Release number of selected component (if applicable): collectd-5.5.1-3.el7.x86_64 collectd-postgresql-5.5.1-3.el7.x86_64 selinux-policy-3.13.1-60.el7_2.3.noarch selinux-policy-targeted-3.13.1-60.el7_2.3.noarch How reproducible: Always Steps to Reproduce: 1. Install collectd and collectd-postgresql (from EPEL) 2. Add <Plugin postgresql> and <Database {name}> entries to collectd.conf, using a filesystem directory for Host, e.g. LoadPlugin postgresql <Plugin postgresql> <Database postgres> Host "/run/postgresql" User postgres </Database> </Plugin> 3. Start collectd and observe an error like this in syslog Jun 8 14:31:47 fmosng-56d3ff collectd[20094]: Failed to connect to database postgres (postgres): could not connect to server: Permission denied#012#011Is the server running locally and accepting#012#011connections on Unix domain socket "/run/postgresql/.s.PGSQL.5432"? Actual results: collectd is unable to connect to the database instance Expected results: collectd should be able to connect to the database instance Additional info: The following policy modification resolves the issue: policy_module(collectdlocal, 1.0.0) gen_require(` type collectd_t; ') optional_policy(` postgresql_stream_connect(collectd_t) ')