mirror of
https://github.com/inspec/inspec
synced 2024-11-30 16:39:20 +00:00
c71f5cdb30
Redhat conf_dir detection was regressed in 57d7275
which inadvertently
removed the setting of @conf_dir. Any attempt to use the postgres
resource on RHEL would rain an exception:
inspec> postgres.data_dir
TypeError: no implicit conversion of nil into String
Further, the redhat detection code appears to assume that RHEL always
uses versioned data directories. This however, does not appear to be the
case:
$ cat /etc/redhat-release
CentOS release 6.7 (Final)
$ sudo ls /var/lib/pgsql/
backups data pgstartup.log
The code now can handle both versioned and un-versioned directory
formats on RHEL. Further, it provides diagnostic warnings about
uncertainty in the discovered data directories and configuration
directories.
Signed-off-by: Steven Danna <steve@chef.io>
122 lines
4 KiB
Ruby
122 lines
4 KiB
Ruby
# encoding: utf-8
|
|
# copyright: 2015, Vulcano Security GmbH
|
|
# author: Dominik Richter
|
|
# author: Christoph Hartmann
|
|
# license: All rights reserved
|
|
|
|
module Inspec::Resources
|
|
class Postgres < Inspec.resource(1)
|
|
name 'postgres'
|
|
|
|
attr_reader :service, :data_dir, :conf_dir, :conf_path
|
|
def initialize
|
|
os = inspec.os
|
|
if os.debian?
|
|
#
|
|
# https://wiki.debian.org/PostgreSql
|
|
#
|
|
# Debian allows multiple versions of postgresql to be
|
|
# installed as well as multiple "clusters" to be configured.
|
|
#
|
|
version = version_from_dir('/etc/postgresql')
|
|
cluster = cluster_from_dir("/etc/postgresql/#{version}")
|
|
@conf_dir = "/etc/postgresql/#{version}/#{cluster}"
|
|
@data_dir = "/var/lib/postgresql/#{version}/#{cluster}"
|
|
elsif os.redhat?
|
|
#
|
|
# /var/lib/pgsql/data is the default data directory on RHEL6
|
|
# and RHEL7. However, PR #824 explicitly added version-based
|
|
# directories. Thus, we call #version_from_dir unless it looks
|
|
# like we are using unversioned directories.
|
|
#
|
|
# TODO(ssd): This has the potential to be noisy because of the
|
|
# warning in version_from_dir. We should determine which case
|
|
# is more common and only warn in the less common case.
|
|
#
|
|
version = if inspec.directory('/var/lib/pgsql/data').exist?
|
|
warn 'Found /var/lib/pgsql/data. Assuming postgresql install uses un-versioned directories.'
|
|
nil
|
|
else
|
|
version_from_dir('/var/lib/pgsql/')
|
|
end
|
|
|
|
@data_dir = File.join('/var/lib/pgsql/', version.to_s, 'data')
|
|
elsif os[:name] == 'arch'
|
|
#
|
|
# https://wiki.archlinux.org/index.php/PostgreSQL
|
|
#
|
|
# The archlinux wiki points to /var/lib/postgresql/data as the
|
|
# main data directory.
|
|
#
|
|
@data_dir = '/var/lib/postgres/data'
|
|
else
|
|
#
|
|
# According to https://www.postgresql.org/docs/9.5/static/creating-cluster.html
|
|
#
|
|
# > There is no default, although locations such as
|
|
# > /usr/local/pgsql/data or /var/lib/pgsql/data are popular.
|
|
#
|
|
@data_dir = '/var/lib/pgsql/data'
|
|
end
|
|
|
|
@service = 'postgresql'
|
|
@conf_dir ||= @data_dir
|
|
verify_dirs
|
|
@conf_path = File.join @conf_dir, 'postgresql.conf'
|
|
end
|
|
|
|
def to_s
|
|
'PostgreSQL'
|
|
end
|
|
|
|
private
|
|
|
|
def verify_dirs
|
|
if !inspec.directory(@conf_dir).exist?
|
|
warn "Default postgresql configuration directory: #{@conf_dir} does not exist. Postgresql may not be installed or we've misidentified the configuration directory."
|
|
end
|
|
|
|
if !inspec.directory(@data_dir).exist?
|
|
warn "Default postgresql data directory: #{@data_dir} does not exist. Postgresql may not be installed or we've misidentified the data directory."
|
|
end
|
|
end
|
|
|
|
def version_from_dir(dir)
|
|
dirs = inspec.command("ls -d #{dir}/*/").stdout
|
|
entries = dirs.lines.count
|
|
case entries
|
|
when 0
|
|
warn "Could not determine version of installed postgresql by inspecting #{dir}"
|
|
nil
|
|
when 1
|
|
warn "Using #{dirs}: #{dir_to_version(dirs)}"
|
|
dir_to_version(dirs)
|
|
else
|
|
warn "Multiple versions of postgresql installed or incorrect base dir #{dir}"
|
|
first = dir_to_version(dirs.lines.first)
|
|
warn "Using the first version found: #{first}"
|
|
first
|
|
end
|
|
end
|
|
|
|
def dir_to_version(dir)
|
|
dir.chomp.split('/').last
|
|
end
|
|
|
|
def cluster_from_dir(dir)
|
|
# Main is the default cluster name on debian use it if it
|
|
# exists.
|
|
if inspec.directory("#{dir}/main").exist?
|
|
'main'
|
|
else
|
|
dirs = inspec.command("ls -d #{dir}/*/").stdout.lines
|
|
first = dirs.first.chomp.split('/').last
|
|
if dirs.count > 1
|
|
warn "Multiple postgresql clusters configured or incorrect base dir #{dir}"
|
|
warn "Using the first directory found: #{first}"
|
|
end
|
|
first
|
|
end
|
|
end
|
|
end
|
|
end
|