Files
scripts/backup_scripts/postgres/pre_backup_docker.sh

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#!/bin/bash
DATE=$(date +%F)
DIRBACKUP="/data/backups"
DBUSER="postgres"
getDbName() {
docker exec postgresql bash -c "psql -lA -x -U postgres -p 5432 -d postgres | \
grep Name | grep -v -P 'template0|template1' | cut -f 2 -d '|'"
}
DBLIST=$(getDbName)
createBackup() {
for db in $DBLIST; do
echo "===================================="
echo "START create backup database: ${db}"
docker exec postgresql bash -c "pg_dump -Fc -U ${DBUSER} -p 5432 -d ${db}" > "${DIRBACKUP}/${db}-${DATE}".sql
bzip2 -9 "${DIRBACKUP}/${db}-${DATE}".sql
echo "END database bzip2: ${db}"
done
}
[[ $(ls -A ${DIRBACKUP}) ]] 2>/dev/null && echo "dir ${DIRBACKUP} not empty" && exit 123
createBackup