DevAndTools/docker-postgres-backup-local
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Limit last backups by minutes

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Pau Rodriguez-Estivill
2022-02-26 16:28:57 +01:00
parent 95e93b19fa
commit b6163ee56a
5 changed files with 27 additions and 16 deletions
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backup.sh
+23 -16
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@@ -56,47 +56,54 @@ else
fi
export PGHOST="${POSTGRES_HOST}"
export PGPORT="${POSTGRES_PORT}"
KEEP_MINS=${BACKUP_KEEP_MINS}
KEEP_DAYS=${BACKUP_KEEP_DAYS}
KEEP_WEEKS=`expr $(((${BACKUP_KEEP_WEEKS} * 7) + 1))`
KEEP_MONTHS=`expr $(((${BACKUP_KEEP_MONTHS} * 31) + 1))`
#Initialize dirs
mkdir -p "${BACKUP_DIR}/daily/" "${BACKUP_DIR}/weekly/" "${BACKUP_DIR}/monthly/"
mkdir -p "${BACKUP_DIR}/last/" "${BACKUP_DIR}/daily/" "${BACKUP_DIR}/weekly/" "${BACKUP_DIR}/monthly/"
#Loop all databases
for DB in ${POSTGRES_DBS}; do
#Initialize filename vers
DFILE="${BACKUP_DIR}/daily/${DB}-`date +%Y%m%d-%H%M%S`${BACKUP_SUFFIX}"
FILE="${BACKUP_DIR}/last/${DB}-`date +%Y%m%d-%H%M%S`${BACKUP_SUFFIX}"
DFILE="${BACKUP_DIR}/daily/${DB}-`date +%Y%m%d`${BACKUP_SUFFIX}"
WFILE="${BACKUP_DIR}/weekly/${DB}-`date +%G%V`${BACKUP_SUFFIX}"
MFILE="${BACKUP_DIR}/monthly/${DB}-`date +%Y%m`${BACKUP_SUFFIX}"
#Create dump
if [ "${POSTGRES_CLUSTER}" = "TRUE" ]; then
echo "Creating cluster dump of ${DB} database from ${POSTGRES_HOST}..."
pg_dumpall -l "${DB}" ${POSTGRES_EXTRA_OPTS} | gzip > "${DFILE}"
pg_dumpall -l "${DB}" ${POSTGRES_EXTRA_OPTS} | gzip > "${FILE}"
else
echo "Creating dump of ${DB} database from ${POSTGRES_HOST}..."
pg_dump -d "${DB}" -f "${DFILE}" ${POSTGRES_EXTRA_OPTS}
pg_dump -d "${DB}" -f "${FILE}" ${POSTGRES_EXTRA_OPTS}
fi
#Copy (hardlink) for each entry
if [ -d "${DFILE}" ]; then
if [ -d "${FILE}" ]; then
DFILENEW="${DFILE}-new"
WFILENEW="${WFILE}-new"
MFILENEW="${MFILE}-new"
rm -rf "${WFILENEW}" "${MFILENEW}"
mkdir "${WFILENEW}" "${MFILENEW}"
ln -f "${DFILE}/"* "${WFILENEW}/"
ln -f "${DFILE}/"* "${MFILENEW}/"
rm -rf "${WFILE}" "${MFILE}"
rm -rf "${DFILENEW}" "${WFILENEW}" "${MFILENEW}"
mkdir "${DFILENEW}" "${WFILENEW}" "${MFILENEW}"
ln -f "${FILE}/"* "${DFILENEW}/"
ln -f "${FILE}/"* "${WFILENEW}/"
ln -f "${FILE}/"* "${MFILENEW}/"
rm -rf "${DFILE}" "${WFILE}" "${MFILE}"
mv -v "${DFILENEW}" "${DFILE}"
mv -v "${WFILENEW}" "${WFILE}"
mv -v "${MFILENEW}" "${MFILE}"
else
ln -vf "${DFILE}" "${WFILE}"
ln -vf "${DFILE}" "${MFILE}"
ln -vf "${FILE}" "${DFILE}"
ln -vf "${FILE}" "${WFILE}"
ln -vf "${FILE}" "${MFILE}"
fi
#Clean old files
echo "Cleaning older than ${KEEP_DAYS} days for ${DB} database from ${POSTGRES_HOST}..."
find "${BACKUP_DIR}/daily" -maxdepth 1 -mtime +${KEEP_DAYS} -name "${DB}-*${BACKUP_SUFFIX}" -exec rm -rf '{}' ';'
find "${BACKUP_DIR}/weekly" -maxdepth 1 -mtime +${KEEP_WEEKS} -name "${DB}-*${BACKUP_SUFFIX}" -exec rm -rf '{}' ';'
find "${BACKUP_DIR}/monthly" -maxdepth 1 -mtime +${KEEP_MONTHS} -name "${DB}-*${BACKUP_SUFFIX}" -exec rm -rf '{}' ';'
echo "Cleaning older files for ${DB} database from ${POSTGRES_HOST}..."
find "${BACKUP_DIR}/last" -maxdepth 1 -mmin "${KEEP_MINS}" -name "${DB}-*${BACKUP_SUFFIX}" -exec rm -rf '{}' ';'
find "${BACKUP_DIR}/daily" -maxdepth 1 -mtime "+${KEEP_DAYS}" -name "${DB}-*${BACKUP_SUFFIX}" -exec rm -rf '{}' ';'
find "${BACKUP_DIR}/weekly" -maxdepth 1 -mtime "+${KEEP_WEEKS}" -name "${DB}-*${BACKUP_SUFFIX}" -exec rm -rf '{}' ';'
find "${BACKUP_DIR}/monthly" -maxdepth 1 -mtime "+${KEEP_MONTHS}" -name "${DB}-*${BACKUP_SUFFIX}" -exec rm -rf '{}' ';'
done
echo "SQL backup created successfully"