ScriptsCollections/DumpDatabasePostgreSQL
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DumpDatabasePostgreSQL/pg_restore_db_file.sh

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#!/bin/bash
function usage ()
{
cat <<- EOT
Restores a list of database dumps from a folder to a database server
Usage: ${0##/*/} -f <dump folder> [-j <JOBS>] [-e <ENCODING>] [-h <HOST>] [-r|-a] [-g] [-n]
-e <ENCODING>: override global encoding, will be overruled by per file encoding
-p <PORT>: override default port from file.
-h <HOST>: override default host from file.
-f: dump folder source. Where the database dump files are located. This is a must set option
-j <JOBS>: Run how many jobs Parallel. If not set, 2 jobs are run parallel
-r: use redhat base paths instead of debian
-a: use amazon base paths instead of debian
-g: do not import globals file
-n: dry run, do not import or change anything
EOT
}
_port=5432
PORT='';
_host='local';
HOST='';
_encoding='UTF8';
set_encoding='';
REDHAT=0;
AMAZON=0;
IMPORT_GLOBALS=1;
TEMPLATEDB='template0'; # truly empty for restore
DUMP_FOLDER='';
MAX_JOBS='';
BC='/usr/bin/bc';
PORT_REGEX="^[0-9]{4,5}$";
OPTARG_REGEX="^-";
DRY_RUN=0;
# options check
while getopts ":f:j:h:p:e:granm" opt; do
# pre test for unfilled
if [ "${opt}" = ":" ] || [[ "${OPTARG-}" =~ ${OPTARG_REGEX} ]]; then
if [ "${opt}" = ":" ]; then
CHECK_OPT=${OPTARG};
else
CHECK_OPT=${opt};
fi;
case ${CHECK_OPT} in
h)
echo "-h needs a host name";
ERROR=1;
;;
f)
echo "-f needs a folder name";
ERROR=1;
;;
p)
echo "-h needs a port number";
ERROR=1;
;;
e)
echo "-e needs an encoding";
ERROR=1;
;;
j)
echo "-j needs a numeric value for parallel jobs";
ERROR=1;
;;
esac
fi;
case $opt in
f|file)
DUMP_FOLDER=$OPTARG;
;;
j|jobs)
MAX_JOBS=${OPTARG};
;;
e|encoding)
if [ -z "$encoding" ]; then
encoding=$OPTARG;
fi;
;;
h|hostname)
if [ -z "$host" ]; then
host='-h '$OPTARG;
_host=$OPTARG;
HOST=$OPRTARG;
fi;
;;
p|port)
if [ -z "$port" ]; then
port='-p '$OPTARG;
_port=$OPTARG;
PORT=$OPTARG;
fi;
;;
g|globals)
IMPORT_GLOBALS=0;
;;
r|redhat)
REDHAT=1;
;;
a|amazon)
AMAZON=1;
;;
n|dry-run)
DRY_RUN=1;
;;
m|help)
usage;
exit 0;
;;
\?)
echo -e "\n Option does not exist: $OPTARG\n";
usage;
exit 1;
;;
esac;
done;
if [ "$REDHAT" -eq 1 ] && [ "$AMAZON" -eq 1 ]; then
echo "You cannot set the -a and -r flag at the same time";
fi;
if [ "$REDHAT" -eq 1 ]; then
# Redhat base path (for non official ones would be '/usr/pgsql-'
DBPATH_BASE='/usr/pgsql-'
elif [ "$AMAZON" -eq 1 ]; then
# Amazon paths (lib64 default amazon package)
DBPATH_BASE='/usr/lib64/pgsql';
else
# Debian base path
DBPATH_BASE='/usr/lib/postgresql/';
fi;
# check that the port is a valid number
if ! [[ "$_port" =~ $PORT_REGEX ]]; then
echo "The port needs to be a valid number: $_port";
exit 1;
fi;
NUMBER_REGEX="^[0-9]{1,}$";
# find the max allowed jobs based on the cpu count
# because setting more than this is not recommended
# so this fails in vmware hosts were we have random cpus assigned
cpu=$(cat /proc/cpuinfo | grep "processor" | wc -l);
_max_jobs=${cpu##*: };
# if the MAX_JOBS is not number or smaller 1 or greate _max_jobs
if [ ! -z "${MAX_JOBS}" ]; then
# check that it is a valid number
if [[ ! ${MAX_JOBS} =~ ${NUMBER_REGEX} ]]; then
echo "Please enter a number for the -j option";
exit 1;
fi;
if [ ${MAX_JOBS} -lt 1 ] || [ ${MAX_JOBS} -gt ${_max_jobs} ]; then
echo "The value for the jobs option -j cannot be smaller than 1 or bigger than ${_max_jobs}";
exit 1;
fi;
else
# auto set the MAX_JOBS based on the cpu count
MAX_JOBS=${_max_jobs};
fi;
if [ "$DUMP_FOLDER" = '' ]; then
echo "Please provide a source folder for the dump files with the -f option";
exit;
fi;
# check that source folder is there
if [ ! -d "$DUMP_FOLDER" ]; then
echo "Folder '$DUMP_FOLDER' does not exist";
exit;
fi;
LOGS=$DUMP_FOLDER'/logs/';
# create logs folder if missing
if [ ! -d "$LOGS" ]; then
echo "Creating '$LOGS' folder";
mkdir -p "$LOGS";
if [ ! -d "$LOGS" ]; then
echo "Creation of '$LOGS' folder failed";
exit;
fi;
fi;
# check if we have the 'bc' command available or not
if [ -f "${BC}" ]; then
BC_OK=1;
else
BC_OK=0;
fi;
# METHOD: convert_time
# PARAMS: timestamp in seconds or with milliseconds (nnnn.nnnn)
# RETURN: formated string with human readable time (d/h/m/s)
# CALL : var=$(convert_time $timestamp);
# DESC : converts a timestamp or a timestamp with float milliseconds to a human readable format
# output is in days/hours/minutes/seconds
function convert_time
{
timestamp=${1};
# round to four digits for ms
timestamp=$(printf "%1.4f" $timestamp);
# get the ms part and remove any leading 0
ms=$(echo ${timestamp} | cut -d "." -f 2 | sed -e 's/^0*//');
timestamp=$(echo ${timestamp} | cut -d "." -f 1);
timegroups=(86400 3600 60 1); # day, hour, min, sec
timenames=("d" "h" "m" "s"); # day, hour, min, sec
output=( );
time_string='';
for timeslice in ${timegroups[@]}; do
# floor for the division, push to output
if [ ${BC_OK} -eq 1 ]; then
output[${#output[*]}]=$(echo "${timestamp}/${timeslice}" | bc);
timestamp=$(echo "${timestamp}%${timeslice}" | bc);
else
output[${#output[*]}]=$(awk "BEGIN {printf \"%d\", ${timestamp}/${timeslice}}");
timestamp=$(awk "BEGIN {printf \"%d\", ${timestamp}%${timeslice}}");
fi;
done;
for ((i=0; i<${#output[@]}; i++)); do
if [ ${output[$i]} -gt 0 ] || [ ! -z "$time_string" ]; then
if [ ! -z "${time_string}" ]; then
time_string=${time_string}" ";
fi;
time_string=${time_string}${output[$i]}${timenames[$i]};
fi;
done;
if [ ! -z ${ms} ]; then
if [ ${ms} -gt 0 ]; then
time_string=${time_string}" "${ms}"ms";
fi;
fi;
# just in case the time is 0
if [ -z "${time_string}" ]; then
time_string="0s";
fi;
echo -n "${time_string}";
}
# default version (for folder)
DBPATH_VERSION='9.6/';
# if amazon remove "." from version
if [ "${AMAZON}" -eq 1 ]; then
DBPATH_VERSION=$(echo "${DBPATH_VERSION}" | sed -e 's/\.//');
fi;
DBPATH_BIN='bin/';
# postgresql binaries
DROPDB="dropdb";
CREATEDB="createdb";
CREATELANG="createlang";
PGRESTORE="pg_restore";
CREATEUSER="createuser";
PSQL="psql";
# default port and host
EXCLUDE_LIST="pg_globals"; # space separated
LOGFILE="tee -a $LOGS/PG_RESTORE_DB_FILE.`date +"%Y%m%d_%H%M%S"`.log";
# get the count for DBs to import
db_count=`find $DUMP_FOLDER -name "*.sql" -print | wc -l`;
# start info
if [ "${DUMP_FOLDER}" = "." ]; then
_DUMP_FOLDER="[current folder]";
else
_DUMP_FOLDER=${DUMP_FOLDER};
fi;
if [ -z "${HOST}" ]; then
_HOST="[auto host]";
else
_HOST=${HOST};
fi;
if [ -z "${PORT}" ]; then
_PORT="[auto port]";
else
_PORT=${PORT};
fi;
echo "= Will import $db_count databases from $_DUMP_FOLDER" | $LOGFILE;
echo "= into the DB server $_HOST:$_PORT" | $LOGFILE;
echo "= running $MAX_JOBS jobs" | $LOGFILE;
echo "= import logs: $LOGS" | $LOGFILE;
echo "" | $LOGFILE;
pos=1;
# go through all the files an import them into the database
MASTERSTART=`date +'%s'`;
master_start_time=`date +"%F %T"`;
# first import the pg_globals file if this is requested, default is yes
if [ "$IMPORT_GLOBALS" -eq 1 ]; then
start_time=`date +"%F %T"`;
START=`date +'%s'`;
# get the pg_globals file
echo "=[Globals Restore]=START=[$start_time]==================================================>" | $LOGFILE;
# get newest and only the first one
file=`ls -1t $DUMP_FOLDER/pg_global* | head -1`;
filename=`basename $file`;
# the last _ is for version 10 or higher
version=`echo $filename | cut -d "." -f 4 | cut -d "-" -f 2 | cut -d "_" -f 1`; # db version, without prefix of DB type
# if this is < 10 then we need the second part too
if [ ${version} -lt 10 ]; then
version=$version'.'`echo $filename | cut -d "." -f 5 | cut -d "_" -f 1`; # db version, second part (after .)
fi;
# if amazon remove "." from version
if [ "${AMAZON}" -eq 1 ]; then
version=$(echo "${version}" | sed -e 's/\.//');
fi;
__host=`echo $filename | cut -d "." -f 5 | cut -d "_" -f 2`; # hostname of original DB, can be used as target host too
__port=`echo $filename | cut -d "." -f 5 | cut -d "_" -f 3`; # port of original DB, can be used as target port too
# override file port over given port if it differs and is valid
if [ -z $_port ] && [ "$__port" != $_port ] && [[ $__port =~ $PORT_REGEX ]] ; then
_port=$__port;
port='-p '$_port;
fi;
if [ -z "$_host" ] && [ "$__host" != "local" ]; then
_host=$__host;
host='-h '$_host;
fi;
# create the path to the DB from the DB version in the backup file
if [ ! -z "$version" ]; then
DBPATH_VERSION_LOCAL=$version'/';
else
DBPATH_VERSION_LOCAL=$DBPATH_VERSION;
fi;
DBPATH=$DBPATH_BASE$DBPATH_VERSION_LOCAL$DBPATH_BIN;
echo "+ Restore globals file: $filename to [$_host:$_port] @ `date +"%F %T"`" | $LOGFILE;
if [ ${DRY_RUN} -eq 0 ]; then
$DBPATH$PSQL -U postgres $host $port -f $file -e -q -X template1 | $LOGFILE;
else
echo "$DBPATH$PSQL -U postgres $host $port -f $file -e -q -X template1" | $LOGFILE;
fi;
DURATION=$[ `date +'%s'`-$START ];
printf "=[Globals Restore]=END===[%s]========================================================>\n" "$(convert_time ${DURATION})" | $LOGFILE;
fi;
for file in $DUMP_FOLDER/*.sql; do
start_time=`date +"%F %T"`;
START=`date +'%s'`;
echo "=[$pos/$db_count]=START=[$start_time]==================================================>" | $LOGFILE;
# the encoding
set_encoding='';
# get the filename
filename=`basename $file`;
# get the databse, user
# default file name is <database>.<owner>.<encoding>.<type>-<version>_<host>_<port>_<date>_<time>_<sequence>
database=`echo $filename | cut -d "." -f 1`;
owner=`echo $filename | cut -d "." -f 2`;
__encoding=`echo $filename | cut -d "." -f 3`;
# the last _ part if for version 10
version=`echo $filename | cut -d "." -f 4 | cut -d "-" -f 2 | cut -d "_" -f 1`; # db version, without prefix of DB type
# if this is < 10 then we need the second part too
if [ ${version} -lt 10 ]; then
version=$version'.'`echo $filename | cut -d "." -f 5 | cut -d "_" -f 1`; # db version, second part (after .)
fi;
# if amazon remove "." from version
if [ "${AMAZON}" -eq 1 ]; then
version=$(echo "${version}" | sed -e 's/\.//');
fi;
__host=`echo $filename | cut -d "." -f 5 | cut -d "_" -f 2`; # hostname of original DB, can be used as target host too
__port=`echo $filename | cut -d "." -f 5 | cut -d "_" -f 3`; # port of original DB, can be used as target port too
other=`echo $filename | cut -d "." -f 5 | cut -d "_" -f 2-`; # backup date and time, plus sequence
# override file port over given port if it differs and is valid
if [ -z $_port ] && [ "$__port" != $_port ] && [[ $__port =~ $PORT_REGEX ]] ; then
_port=$__port;
port='-p '$_port;
fi;
if [ -z "$_host" ] && [ "$__host" != "local" ]; then
_host=$__host;
host='-h '$_host;
fi;
# override encoding (dangerous)
# check if we have a master override
if [ ! "$encoding" ]; then
set_encoding=$encoding;
fi;
# if no override encoding set first from file, then from global
if [ ! "$set_encoding" ]; then
if [ ! -z "$__encoding" ]; then
set_encoding=$__encoding;
else
set_encoding=$_encoding;
fi;
fi;
# create the path to the DB from the DB version in the backup file
if [ ! -z "$version" ]; then
DBPATH_VERSION_LOCAL=$version'/';
else
DBPATH_VERSION_LOCAL=$DBPATH_VERSION;
fi;
DBPATH=$DBPATH_BASE$DBPATH_VERSION_LOCAL$DBPATH_BIN;
# check this is skip or not
exclude=0;
for exclude_db in $EXCLUDE_LIST; do
if [ "$exclude_db" = "$database" ]; then
exclude=1;
fi;
done;
if [ $exclude -eq 0 ]; then
# create user if not exist yet
# check query for user
user_oid=`echo "SELECT oid FROM pg_roles WHERE rolname = '$owner';" | $PSQL -U postgres $host $port -A -F "," -t -q -X template1`;
if [ -z $user_oid ]; then
echo "+ Create USER '$owner' for DB '$database' [$_host:$_port] @ `date +"%F %T"`" | $LOGFILE;
if [ ${DRY_RUN} -eq 0 ]; then
$CREATEUSER -U postgres -D -R -S $host $port $owner;
else
echo "$CREATEUSER -U postgres -D -R -S $host $port $owner";
fi;
fi;
# before importing the data, drop this database
echo "- Drop DB '$database' [$_host:$_port] @ `date +"%F %T"`" | $LOGFILE;
if [ ${DRY_RUN} -eq 0 ]; then
$DBPATH$DROPDB -U postgres $host $port $database;
else
echo "$DBPATH$DROPDB -U postgres $host $port $database";
fi;
echo "+ Create DB '$database' with '$owner' [$_host:$_port] @ `date +"%F %T"`" | $LOGFILE;
if [ ${DRY_RUN} -eq 0 ]; then
$DBPATH$CREATEDB -U postgres -O $owner -E $set_encoding -T $TEMPLATEDB $host $port $database;
else
echo "$DBPATH$CREATEDB -U postgres -O $owner -E $set_encoding -T $TEMPLATEDB $host $port $database";
fi;
if [ -f $DBPATH$CREATELANG ]; then
echo "+ Create plpgsql lang in DB '$database' [$_host:$_port] @ `date +"%F %T"`" | $LOGFILE;
if [ ${DRY_RUN} -eq 0 ]; then
$DBPATH$CREATELANG -U postgres plpgsql $host $port $database;
else
echo "$DBPATH$CREATELANG -U postgres plpgsql $host $port $database";
fi;
fi;
echo "% Restore data from '$filename' to DB '$database' using $MAX_JOBS jobs [$_host:$_port] @ `date +"%F %T"`" | $LOGFILE;
if [ ${DRY_RUN} -eq 0 ]; then
$DBPATH$PGRESTORE -U postgres -d $database -F c -v -c -j $MAX_JOBS $host $port $file 2>$LOGS'/errors.'$database'.'$(date +"%Y%m%d_%H%M%S".log);
else
echo "$DBPATH$PGRESTORE -U postgres -d $database -F c -v -c -j $MAX_JOBS $host $port $file 2>$LOGS'/errors.'$database'.'$(date +"%Y%m%d_%H%M%S".log)";
fi;
# BUG FIX FOR POSTGRESQL 9.6.2 db_dump
# it does not dump the default public ACL so the owner of the DB cannot access the data, check if the ACL dump is missing and do a basic restore
if [ -z "$($DBPATH$PGRESTORE -l $file | grep -- "ACL - public postgres")" ]; then
echo "? Fixing missing basic public schema ACLs from DB $database [$_host:$_port] @ `date +"%F %T"`";
# grant usage on schema public to public;
# grant create on schema public to public;
echo "GRANT USAGE ON SCHEMA public TO public;" | $DBPATH$PSQL -U postgres -Atq $host $port $database;
echo "GRANT CREATE ON SCHEMA public TO public;" | $DBPATH$PSQL -U postgres -Atq $host $port $database;
fi;
echo "$ Restore of data '$filename' for DB '$database' [$_host:$_port] finished" | $LOGFILE;
DURATION=$[ `date +'%s'`-$START ];
echo "* Start at $start_time and end at `date +"%F %T"` and ran for $(convert_time ${DURATION}) seconds" | $LOGFILE;
else
DURATION=0;
echo "# Skipped DB '$database'" | $LOGFILE;
fi;
printf "=[$pos/$db_count]=END===[%s]========================================================>\n" "$(convert_time ${DURATION})" | $LOGFILE;
pos=$[ $pos+1 ];
done;
DURATION=$[ `date +'%s'`-$MASTERSTART ];
echo "" | $LOGFILE;
echo "= Start at $master_start_time and end at `date +"%F %T"` and ran for $(convert_time ${DURATION}) seconds. Imported $db_count databases." | $LOGFILE;
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