f7168620ae
This patch set fixes the calculation of how long a database backup has be taken. In the existing code, the time difference is rounded to days, even a second less than 4 days will be rounded to 3 days. This effectively allows archives to be kept for one additional day. The new calculation and comparison is based on seconds. Change-Id: I5547e923538ddb83f409b1e7df936baf664e717a
99 lines
2.9 KiB
Smarty
Executable File
99 lines
2.9 KiB
Smarty
Executable File
#!/bin/bash
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# Copyright 2018 The Openstack-Helm Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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set -x
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export PGPASSFILE=/etc/postgresql/admin_user.conf
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PG_DUMPALL_OPTIONS=$POSTGRESQL_BACKUP_PG_DUMPALL_OPTIONS
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BACKUPS_DIR=${POSTGRESQL_BACKUP_BASE_DIR}/db/${POSTGRESQL_POD_NAMESPACE}/postgres/current
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ARCHIVE_DIR=${POSTGRESQL_BACKUP_BASE_DIR}/db/${POSTGRESQL_POD_NAMESPACE}/postgres/archive
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POSTGRESQL_HOST=$(cat /etc/postgresql/admin_user.conf | cut -d: -f 1)
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PG_DUMPALL="pg_dumpall -U $POSTGRESQL_BACKUP_USER -h $POSTGRESQL_HOST"
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#Delete files
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delete_files() {
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files_to_delete=("$@")
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for f in "${files_to_delete[@]}"
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do
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if [ -f $f ]
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then
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echo "Deleting file $f."
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rm -rf $f
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fi
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done
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}
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#Get the day delta since the archive file backup
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seconds_difference() {
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archive_date=$( date --date="$1" +%s )
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if [ "$?" -ne 0 ]
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then
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second_delta=0
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fi
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current_date=$( date +%s )
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second_delta=$(($current_date-$archive_date))
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if [ "$second_delta" -lt 0 ]
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then
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second_delta=0
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fi
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echo $second_delta
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}
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#Create backups directory if it does not exists.
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mkdir -p $BACKUPS_DIR $ARCHIVE_DIR
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#Dump all databases
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DATE=$(date +"%Y-%m-%dT%H:%M:%SZ")
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pg_dumpall $POSTGRESQL_BACKUP_PG_DUMPALL_OPTIONS -U $POSTGRESQL_BACKUP_USER \
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-h $POSTGRESQL_HOST --file=$BACKUPS_DIR/postgres.all.sql 2>dberror.log
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if [[ $? -eq 0 && -s "$BACKUPS_DIR/postgres.all.sql" ]]
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then
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#Archive the current databases files
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pushd $BACKUPS_DIR 1>/dev/null
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tar zcvf $ARCHIVE_DIR/postgres.all.${DATE}.tar.gz *
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ARCHIVE_RET=$?
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popd 1>/dev/null
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#Remove the current backup
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if [ -d $BACKUPS_DIR ]
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then
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rm -rf $BACKUPS_DIR/*.sql
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fi
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else
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#TODO: This can be convert into mail alert of alert send to a monitoring system
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echo "Backup of postgresql failed and need attention."
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cat dberror.log
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exit 1
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fi
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#Only delete the old archive after a successful archive
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if [ $ARCHIVE_RET -eq 0 ]
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then
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if [ "$POSTGRESQL_BACKUP_DAYS_TO_KEEP" -gt 0 ]
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then
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echo "Deleting backups older than $POSTGRESQL_BACKUP_DAYS_TO_KEEP days"
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if [ -d $ARCHIVE_DIR ]
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then
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for archive_file in $(ls -1 $ARCHIVE_DIR/*.gz)
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do
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archive_date=$( echo $archive_file | awk -F/ '{print $NF}' | cut -d'.' -f 3)
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if [ "$(seconds_difference $archive_date)" -gt "$(($POSTGRESQL_BACKUP_DAYS_TO_KEEP*86400))" ]
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then
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rm -rf $archive_file
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fi
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done
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fi
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fi
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fi
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