Improve PostgreSQL installation parameters auto-detection
This commit is contained in:
Benjamin Renard
root
parent
b092186b89
commit
dc07eccd09
1 changed files with 79 additions and 32 deletions
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@ -19,22 +19,19 @@
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# Source : http://git.zionetrix.net/check_pg_streaming_replication
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#
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PG_USER=postgres
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DEFAULT_PG_USER=postgres
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DEFAULT_PG_VERSION=9.1
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DEFAULT_PG_MAIN=/var/lib/postgresql/$PG_VERSION/main
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DEFAULT_PG_PORT=5432
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PG_USER=""
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PG_VERSION=""
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PG_MAIN=""
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PG_MASTER_USER=""
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PSQL_BIN=/usr/bin/psql
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PG_MAIN=/var/lib/postgresql/9.1/main
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if [ -f /etc/debian_version ]
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then
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AUTO_PG_MAIN=$( ls -1d /var/lib/postgresql/9*/main 2> /dev/null|sort -n|tail -n 1 )
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[ -n "$AUTO_PG_MAIN" -a -d "$AUTO_PG_MAIN" ] && PG_MAIN=$AUTO_PG_MAIN
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elif [ -f /etc/redhat-release ]
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then
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AUTO_PG_MAIN=$( ls -1d /var/lib/pgsql/9*/data 2> /dev/null|sort -n|tail -n 1 )
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[ -n "$AUTO_PG_MAIN" -a -d "$AUTO_PG_MAIN" ] && PG_MAIN=$AUTO_PG_MAIN
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fi
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PG_LSCLUSTER_BIN=/usr/bin/pg_lsclusters
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RECOVERY_CONF_FILENAME=recovery.conf
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RECOVERY_CONF=""
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PG_DEFAULT_PORT=5432
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PG_DEFAULT_PORT=""
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PG_DEFAULT_APP_NAME=$( hostname )
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PG_DB=""
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CHECK_CUR_MASTER_XLOG=1
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@ -46,16 +43,19 @@ DEBUG=0
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function usage () {
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cat << EOF
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Usage : $0 [-d] [-h] [options]
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-u pg_user Specify Postgres user (Default : $PG_USER)
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-u pg_user Specify local Postgres user (Default: try to auto-detect or use $DEFAULT_PG_USER)
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-b psql_bin Specify psql binary path (Default: $PSQL_BIN)
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-m pg_main Specify Postgres main directory path
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(By default, try to auto-detect it, on your system it :
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$PG_MAIN)
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-B pg_lsclusters_bin Specify pg_lsclusters binary path (Default: $PG_LSCLUSTER_BIN)
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-V pg_version Specify Postgres version (Default: try to auto-detect or use $DEFAULT_PG_VERSION)
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-m pg_main Specify Postgres main directory path (Default: try to auto-detect or use
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$DEFAULT_PG_MAIN)
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-r recovery_conf Specify Postgres recovery configuration file path
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(Default: [PG_MAIN]/$RECOVERY_CONF_FILENAME)
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-U pg_master_user Specify Postgres user to use on master (Default: user from recovery.conf file)
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-p pg_port Specify default Postgres master TCP port (Default : $PG_DEFAULT_PORT)
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-D dbname Specify DB name on Postgres master/slave to connect on (Default : PG_USER)
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-p pg_port Specify default Postgres master TCP port (Default: same as local PostgreSQL
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port if detected or use $DEFAULT_PG_PORT)
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-D dbname Specify DB name on Postgres master/slave to connect on (Default: PG_USER, must
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match with .pgpass one is used)
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-C 1/0 Enable or disable check if the current XLOG file of the master host is the same
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of the last replay XLOG file (Default: $CHECK_CUR_MASTER_XLOG)
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-w replay_warn_delay Specify the replay warning delay in second (Default: $REPLAY_WARNING_DELAY)
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@ -66,7 +66,7 @@ EOF
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exit 0
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}
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while getopts "hu:b:m:r:U:p:D:C:w:c:d" OPTION
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while getopts "hu:b:B:V:m:r:U:p:D:C:w:c:d" OPTION
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do
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case $OPTION in
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u)
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@ -75,6 +75,12 @@ do
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b)
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PSQL_BIN=$OPTARG
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;;
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B)
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PG_LSCLUSTER_BIN=$OPTARG
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;;
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V)
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PG_VERSION=$OPTARG
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;;
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m)
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PG_MAIN=$OPTARG
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;;
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@ -111,6 +117,52 @@ do
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esac
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done
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function debug() {
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if [ $DEBUG -eq 1 ]
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then
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>&2 echo -e "[DEBUG] $1"
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fi
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}
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debug "Starting options (before handling auto-detection/default values) :
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PG_VERSION = $PG_VERSION
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PG_DB = $PG_DB
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PG_USER = $PG_USER
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PSQL_BIN = $PSQL_BIN
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PG_LSCLUSTER_BIN = $PG_LSCLUSTER_BIN
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PG_MAIN = $PG_MAIN
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RECOVERY_CONF = $RECOVERY_CONF
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PG_DEFAULT_PORT = $PG_DEFAULT_PORT
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PG_DEFAULT_APP_NAME = $PG_DEFAULT_APP_NAME
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CHECK_CUR_MASTER_XLOG = $CHECK_CUR_MASTER_XLOG
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REPLAY_WARNING_DELAY = $REPLAY_WARNING_DELAY
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REPLAY_CRITICAL_DELAY = $REPLAY_CRITICAL_DELAY
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"
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# Auto-detect PostgreSQL information using pg_lsclusters
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if [ -x "$PG_LSCLUSTER_BIN" ]
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then
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PG_CLUSTER=$( $PG_LSCLUSTER_BIN -h 2>/dev/null|head -n1 )
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if [ -n "$PG_CLUSTER" ]
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then
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debug "pg_lsclusters output:\n\t$PG_CLUSTER"
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# Output example:
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# 9.6 main 5432 online,recovery postgres /var/lib/postgresql/9.6/main /var/log/postgresql/postgresql-9.6-main.log
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[ -z "$PG_VERSION" ] && PG_VERSION=$( echo "$PG_CLUSTER"|awk -F ' +' '{print $1}' )
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[ -z "$PG_DEFAULT_PORT" ] && PG_DEFAULT_PORT=$( echo "$PG_CLUSTER"|awk -F ' +' '{print $3}' )
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[ -z "$PG_USER" ] && PG_USER=$( echo "$PG_CLUSTER"|awk -F ' +' '{print $5}' )
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[ -z "$PG_MAIN" ] && PG_MAIN=$( echo "$PG_CLUSTER"|awk -F ' +' '{print $6}' )
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fi
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else
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debug "pg_lsclusters not found ($PG_LSCLUSTER_BIN): parameters auto-detection disabled"
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fi
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# If auto-detection failed, use default values
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[ -z "$PG_USER" ] && PG_USER="$DEFAULT_PG_USER"
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[ -z "$PG_VERSION" ] && PG_VERSION="$DEFAULT_PG_VERSION"
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[ -z "$PG_MAIN" ] && PG_MAIN="$DEFAULT_PG_MAIN"
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[ -z "$PG_DEFAULT_PORT" ] && PG_DEFAULT_PORT="$DEFAULT_PG_PORT"
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# Check PG_USER
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[ -z "$PG_USER" ] && echo "UNKNOWN : Postgres user not specified" && exit 3
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id "$PG_USER" > /dev/null 2>&1
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@ -143,17 +195,12 @@ function psql_master_get () {
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echo "$sql"|sudo -u $PG_USER $PSQL_BIN -U $M_USER -h $M_HOST -w -p $M_PORT -d $PG_DB -t -P format=unaligned
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}
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function debug() {
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if [ $DEBUG -eq 1 ]
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then
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>&2 echo "[DEBUG] $1"
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fi
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}
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debug "Running options :
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PG_VERSION = $PG_VERSION
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PG_DB = $PG_DB
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PG_USER = $PG_USER
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PSQL_BIN = $PSQL_BIN
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PG_LSCLUSTER_BIN = $PG_LSCLUSTER_BIN
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PG_MAIN = $PG_MAIN
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RECOVERY_CONF = $RECOVERY_CONF
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PG_DEFAULT_PORT = $PG_DEFAULT_PORT
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