Merge branch 'feature/type/__postgres_conf' into 'master'
__postgres_conf: new type See merge request ungleich-public/cdist!972
This commit is contained in:
commit
71d79ed6ee
6 changed files with 473 additions and 0 deletions
64
cdist/conf/type/__postgres_conf/explorer/postgres_user
Normal file
64
cdist/conf/type/__postgres_conf/explorer/postgres_user
Normal file
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@ -0,0 +1,64 @@
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#!/bin/sh -e
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# -*- mode: sh; indent-tabs-mode: t -*-
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#
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# 2021 Dennis Camera (dennis.camera at ssrq-sds-fds.ch)
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#
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# This file is part of cdist.
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#
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# cdist is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# cdist is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with cdist. If not, see <http://www.gnu.org/licenses/>.
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#
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os=$("${__explorer:?}/os")
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case ${os}
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in
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(alpine)
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echo 'postgres'
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;;
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(centos|rhel|scientific)
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echo 'postgres'
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;;
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(debian|devuan|ubuntu)
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echo 'postgres'
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;;
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(freebsd)
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test -x /usr/local/etc/rc.d/postgresql || {
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printf 'could not find postgresql rc script./n' >&2
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exit 1
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}
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pg_status=$(/usr/local/etc/rc.d/postgresql onestatus) || {
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printf 'postgresql daemon is not running.\n' >&2
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exit 1
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}
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pg_pid=$(printf '%s\n' "${pg_status}" \
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| sed -n 's/^pg_ctl:.*(PID: *\([0-9]*\))$/\1/p')
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# PostgreSQL < 9.6: pgsql
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# PostgreSQL >= 9.6: postgres
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ps -o user -p "${pg_pid}" | sed -n '2p'
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;;
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(netbsd)
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echo 'pgsql'
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;;
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(openbsd)
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echo '_postgresql'
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;;
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(suse)
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echo 'postgres'
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;;
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(*)
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echo "Unsupported OS: ${os}" >&2
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exit 1
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;;
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esac
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223
cdist/conf/type/__postgres_conf/explorer/state
Normal file
223
cdist/conf/type/__postgres_conf/explorer/state
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@ -0,0 +1,223 @@
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#!/bin/sh -e
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# -*- mode: sh; indent-tabs-mode: t -*-
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#
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# 2021 Dennis Camera (dennis.camera at ssrq-sds-fds.ch)
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#
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# This file is part of cdist.
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#
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# cdist is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# cdist is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with cdist. If not, see <http://www.gnu.org/licenses/>.
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#
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postgres_user=$("${__type_explorer:?}/postgres_user")
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conf_name=${__object_id:?}
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tolower() { printf '%s' "$*" | tr '[:upper:]' '[:lower:]'; }
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tobytes() {
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# NOTE: This function treats everything as base 2.
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# It is not compatible with SI units.
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awk 'BEGIN { FS = "\n" }
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/TB$/ { $0 = ($0 * 1024) "GB" }
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/GB$/ { $0 = ($0 * 1024) "MB" }
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/MB$/ { $0 = ($0 * 1024) "kB" }
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/kB$/ { $0 = ($0 * 1024) "B" }
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/B?$/ { sub(/ *B?$/, "") }
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($0*1) == $0 # is number
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' <<-EOF
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$1
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EOF
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}
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tomillisecs() {
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awk 'BEGIN { FS = "\n" }
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/d$/ { $0 = ($0 * 24) "h" }
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/h$/ { $0 = ($0 * 60) "min" }
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/min$/ { $0 = ($0 * 60) "s" }
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/[^m]s$/ { $0 = ($0 * 1000) "ms" }
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/ms$/ { $0 *= 1 }
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($0*1) == $0 # is number
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' <<-EOF
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$1
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EOF
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}
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tobool() {
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# prints either 'on' or 'off'
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case $(tolower "$1")
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in
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(t|true|y|yes|on|1)
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echo 'on' ;;
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(f|false|n|no|off|0)
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echo 'off' ;;
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(*)
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printf 'Inavlid bool value: %s\n' "$2" >&2
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return 1
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;;
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esac
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return 0
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}
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quote() { printf '%s\n' "$*" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/'/"; }
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psql_exec() {
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su - "${postgres_user}" -c "psql postgres -twAc $(quote "$*")"
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}
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psql_conf_source() {
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# NOTE: SHOW/SET are case-insentitive, so this command should also be.
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psql_exec "SELECT CASE WHEN source = 'default' OR setting = boot_val THEN 'default' ELSE source END FROM pg_settings WHERE lower(name) = lower('$1')"
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}
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psql_conf_cmp() (
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IFS='|' read -r lower_name vartype setting unit <<-EOF
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$(psql_exec "SELECT lower(name), vartype, setting, unit FROM pg_settings WHERE lower(name) = lower('$1')")
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EOF
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should_value=$2
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is_value=${setting}
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# The following case contains special cases for special settings.
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case ${lower_name}
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in
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(archive_command)
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if test "${setting}" = '(disabled)'
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then
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# DAFUQ PostgreSQL?!
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# PostgreSQL returns (disabled) if the feature is inactive.
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# We cannot compare the values unless it is enabled, first.
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return 0
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fi
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;;
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(archive_mode|backslash_quote|constraint_exclusion|force_parallel_mode|huge_pages|synchronous_commit)
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# Although only 'on', 'off' are documented, PostgreSQL accepts all
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# the "likely" variants of "on" and "off".
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case $(tolower "${should_value}")
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in
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(on|off|true|false|yes|no|1|0)
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should_value=$(tobool "${should_value}")
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;;
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esac
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;;
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esac
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case ${vartype}
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in
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(bool)
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test -z "${unit}" || {
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# please fix the explorer if this error occurs.
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printf 'units are not supported for vartype: %s\n' "${vartype}" >&2
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exit 1
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}
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should_value=$(tobool "${should_value}")
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test "${is_value}" = "${should_value}"
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;;
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(enum)
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test -z "${unit}" || {
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# please fix the explorer if this error occurs.
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printf 'units are not supported with vartype: %s\n' "${vartype}" >&2
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exit 1
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}
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# NOTE: All enums that are currently defined are lower case, but
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# PostgreSQL also accepts upper case spelling.
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should_value=$(tolower "$2")
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test "${is_value}" = "${should_value}"
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;;
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(integer)
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# split multiples from unit, first (e.g. 8kB -> 8, kB)
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case ${unit}
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in
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([0-9]*)
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multiple=${unit%%[!0-9]*}
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unit=${unit##*[0-9 ]}
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;;
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(*) multiple=1 ;;
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esac
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is_value=$((setting * multiple))${unit}
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if expr "${should_value}" : '-\{0,1\}[0-9]*$' >/dev/null
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then
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# default unit
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should_value=$((should_value * multiple))${unit}
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fi
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# then, do conversion
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# NOTE: these conversions work for integers only!
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case ${unit}
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in
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(B|[kMGT]B)
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# bytes
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is_bytes=$(tobytes "${is_value}")
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should_bytes=$(tobytes "${should_value}")
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test $((is_bytes)) -eq $((should_bytes))
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;;
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(ms|s|min|h|d)
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# seconds
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is_ms=$(tomillisecs "${is_value}")
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should_ms=$(tomillisecs "${should_value}")
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test $((is_ms)) -eq $((should_ms))
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;;
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('')
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# no unit
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is_int=${is_value}
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should_int=${should_value}
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test $((is_int)) -eq $((should_int))
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;;
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esac
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;;
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(real|string)
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# NOTE: reals could possibly have units, but currently there none.
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test -z "${unit}" || {
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# please fix the explorer if this error occurs.
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printf 'units are not supported with vartype: %s\n' "${vartype}" >&2
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exit 1
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}
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test "${is_value}" = "${should_value}"
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;;
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esac
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)
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psql_exec 'SELECT 1' >/dev/null || {
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echo 'Connection to PostgreSQL server failed' >&2
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exit 1
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}
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case $(psql_conf_source "${conf_name}")
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in
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('')
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printf 'Invalid configuration parameter: %s\n' "${conf_name}" >&2
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exit 1
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;;
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(default)
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echo absent
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;;
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(*)
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if ! test -f "${__object:?}/parameter/value"
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then
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echo present
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elif psql_conf_cmp "${conf_name}" "$(cat "${__object:?}/parameter/value")"
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then
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echo present
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else
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echo different
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fi
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;;
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esac
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123
cdist/conf/type/__postgres_conf/gencode-remote
Executable file
123
cdist/conf/type/__postgres_conf/gencode-remote
Executable file
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@ -0,0 +1,123 @@
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#!/bin/sh -e
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# -*- mode: sh; indent-tabs-mode: t -*-
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#
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# 2019-2021 Dennis Camera (dennis.camera at ssrq-sds-fds.ch)
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# 2020 Beni Ruef (bernhard.ruef at ssrq-sds-fds.ch)
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#
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||||
# This file is part of cdist.
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||||
#
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||||
# cdist is free software: you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License as published by
|
||||
# the Free Software Foundation, either version 3 of the License, or
|
||||
# (at your option) any later version.
|
||||
#
|
||||
# cdist is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with cdist. If not, see <http://www.gnu.org/licenses/>.
|
||||
#
|
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state_is=$(cat "${__object:?}/explorer/state")
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state_should=$(cat "${__object:?}/parameter/state")
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postgres_user=$(cat "${__object:?}/explorer/postgres_user")
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conf_name=${__object_id:?}
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if test "${state_is}" = "${state_should}"
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then
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exit 0
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fi
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quote() {
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for _arg
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do
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shift
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if test -n "$(printf '%s' "${_arg}" | tr -d -c '\t\n \042-\047\050-\052\073-\077\133\\`|~' | tr -c '' '.')"
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then
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# needs quoting
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set -- "$@" "'$(printf '%s' "${_arg}" | sed -e "s/'/'\\\\''/g")'"
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else
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set -- "$@" "${_arg}"
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fi
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done
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unset _arg
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# NOTE: Use printf because POSIX echo interprets escape sequences
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printf '%s' "$*"
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}
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psql_cmd() {
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printf 'su - %s -c %s\n' "$(quote "${postgres_user}")" "$(quote "$(quote psql "$@")")"
|
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}
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|
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case ${state_should}
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in
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(present)
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test -n "${__object:?}/parameter/value" || {
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echo 'Missing required parameter --value' >&2
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exit 1
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}
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cat <<-EOF
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exec 3< "\${__object:?}/parameter/value"
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$(psql_cmd postgres -tAwq -o /dev/null -v ON_ERROR_STOP=on) <<'SQL'
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\\set conf_value \`cat <&3\`
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||||
ALTER SYSTEM SET ${conf_name} = :'conf_value';
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SELECT pg_reload_conf();
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||||
SQL
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||||
exec 3<&-
|
||||
EOF
|
||||
;;
|
||||
(absent)
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||||
psql_cmd postgres -qwc "ALTER SYSTEM SET ${conf_name} TO DEFAULT"
|
||||
;;
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||||
(*)
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||||
printf 'Invalid --state: %s\n' "${state_should}" >&2
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printf 'Only "present" and "absent" are acceptable.\n' >&2
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exit 1
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||||
;;
|
||||
esac
|
||||
|
||||
# Restart PostgreSQL server if required to apply new configuration value
|
||||
cat <<EOF
|
||||
|
||||
if test 't' = "\$($(psql_cmd postgres -twAc "SELECT pending_restart FROM pg_settings WHERE lower(name) = lower('${conf_name}')"))"
|
||||
then
|
||||
$(
|
||||
init=$(cat "${__global:?}/explorer/init")
|
||||
case ${init}
|
||||
in
|
||||
(systemd)
|
||||
echo 'systemctl restart postgresql.service'
|
||||
;;
|
||||
(*openrc*)
|
||||
echo 'rc-service postgresql restart'
|
||||
;;
|
||||
(sysvinit)
|
||||
echo '/etc/init.d/postgresql restart'
|
||||
;;
|
||||
(init)
|
||||
case $(cat "${__global:?}/explorer/kernel_name")
|
||||
in
|
||||
(FreeBSD)
|
||||
echo '/usr/local/etc/rc.d/postgresql restart'
|
||||
;;
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||||
(OpenBSD|NetBSD)
|
||||
echo '/etc/rc.d/postgresql restart'
|
||||
;;
|
||||
(*)
|
||||
echo "Unsupported operating system. Don't know how to restart services." >&2
|
||||
exit 1
|
||||
esac
|
||||
;;
|
||||
(*)
|
||||
printf "Don't know how to restart services with your init (%s)\n" "${init}" >&2
|
||||
exit 1
|
||||
esac
|
||||
)
|
||||
fi
|
||||
EOF
|
||||
60
cdist/conf/type/__postgres_conf/man.rst
Normal file
60
cdist/conf/type/__postgres_conf/man.rst
Normal file
|
|
@ -0,0 +1,60 @@
|
|||
cdist-type__postgres_conf(7)
|
||||
============================
|
||||
|
||||
NAME
|
||||
----
|
||||
cdist-type__postgres_conf - Alter PostgreSQL configuration
|
||||
|
||||
|
||||
DESCRIPTION
|
||||
-----------
|
||||
Configure a running PostgreSQL server using ``ALTER SYSTEM``.
|
||||
|
||||
|
||||
REQUIRED PARAMETERS
|
||||
-------------------
|
||||
value
|
||||
The value to set (can be omitted if ``--state`` is set to ``absent``).
|
||||
|
||||
|
||||
OPTIONAL PARAMETERS
|
||||
-------------------
|
||||
state
|
||||
``present`` or ``absent``.
|
||||
Defaults to ``present``.
|
||||
|
||||
|
||||
BOOLEAN PARAMETERS
|
||||
------------------
|
||||
None.
|
||||
|
||||
|
||||
EXAMPLES
|
||||
--------
|
||||
|
||||
.. code-block:: sh
|
||||
|
||||
# set timezone
|
||||
__postgres_conf timezone --value Europe/Zurich
|
||||
|
||||
# reset maximum number of concurrent connections to default (normally 100)
|
||||
__postgres_conf max_connections --state absent
|
||||
|
||||
|
||||
SEE ALSO
|
||||
--------
|
||||
None.
|
||||
|
||||
|
||||
AUTHORS
|
||||
-------
|
||||
Beni Ruef (bernhard.ruef--@--ssrq-sds-fds.ch)
|
||||
Dennis Camera (dennis.camera--@--ssrq-sds-fds.ch)
|
||||
|
||||
|
||||
COPYING
|
||||
-------
|
||||
Copyright \(C) 2019-2021 SSRQ (www.ssrq-sds-fds.ch).
|
||||
You can redistribute it and/or modify it under the terms of the GNU General
|
||||
Public License as published by the Free Software Foundation, either version 3 of
|
||||
the License, or (at your option) any later version.
|
||||
1
cdist/conf/type/__postgres_conf/parameter/default/state
Normal file
1
cdist/conf/type/__postgres_conf/parameter/default/state
Normal file
|
|
@ -0,0 +1 @@
|
|||
present
|
||||
2
cdist/conf/type/__postgres_conf/parameter/optional
Normal file
2
cdist/conf/type/__postgres_conf/parameter/optional
Normal file
|
|
@ -0,0 +1,2 @@
|
|||
state
|
||||
value
|
||||
Loading…
Reference in a new issue