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PostgreSQL Backup Script
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#!/bin/bash | |
########################## | |
## Configure ## | |
########################## | |
LOCALDIR= | |
DATABASE_PASSWORD= | |
DATABASE_USER= | |
DATABASES=( | |
) | |
HISTORY=3 | |
########################### | |
## Main ## | |
########################### | |
log() { | |
echo -e "$(date "+%Y-%m-%d %T")" "$1" >> ${LOCALDIR}${DATE}.log | |
} | |
export PGPASSWORD=${DATABASE_PASSWORD} | |
DATE=$(date +%Y-%m-%d) | |
DATETIME=$(date +%Y-%m-%d_%H-%M) | |
DELETEDATE=$(date --date "-$HISTORY DAY" +%Y-%m-%d) | |
TEMPDIR=$(mktemp -d)/ | |
log "backup start" | |
if [ ! -d "${LOCALDIR}" ]; then | |
mkdir -p ${LOCALDIR} | |
fi | |
if [ ! -d "${TEMPDIR}" ]; then | |
mkdir -p ${TEMPDIR} | |
fi | |
for database in ${DATABASES[@]}; do | |
pg_dump -U postgres -d ${database} -f ${TEMPDIR}${DATETIME}_${database}.sql | |
if [ $? -ne 0 ]; then | |
log "databases ${database} backup failed" | |
exit 1 | |
fi | |
log "backup database ${database}" | |
done | |
tar -zcf ${LOCALDIR}${DATETIME}.tar.gz -C ${TEMPDIR} . --exclude .sql | |
rm -rf ${TEMPDIR} | |
rm -f ${LOCALDIR}${DELETEDATE}*.tar.gz | |
rm -f ${LOCALDIR}${DELETEDATE}.log | |
log "backup finish" |
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