mirror of
https://github.com/tiredofit/docker-db-backup.git
synced 2025-12-21 21:33:28 +01:00
257 lines
7.5 KiB
Plaintext
Executable File
257 lines
7.5 KiB
Plaintext
Executable File
#!/usr/bin/with-contenv bash
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date >/dev/null
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### Set Debug Mode
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sleep 10
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if [ "$DEBUG_MODE" = "TRUE" ] || [ "$DEBUG_MODE" = "true" ]; then
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set -x
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fi
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### Sanity Test
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if [ !-n "DB_TYPE"]; then
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echo '** [db-backup] ERROR: No Database Type Selected! '
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exit 1
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fi
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if [ !-n "DB_HOST"]; then
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echo '** [db-backup] ERROR: No Database Host Entered! '
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exit 1
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fi
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### Set Defaults
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COMPRESSION=${COMPRESSION:-GZ}
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DB_DUMP_FREQ=${DB_DUMP_FREQ:-1440}
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DB_DUMP_BEGIN=${DB_DUMP_BEGIN:-+0}
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DB_DUMP_TARGET=${DB_DUMP_TARGET:-/backups}
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DBHOST=${DB_HOST}
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DBNAME=${DB_NAME}
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DBPASS=${DB_PASS}
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DBUSER=${DB_USER}
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DBTYPE=${DB_TYPE}
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MD5=${MD5:-TRUE}
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SPLIT_DB=${SPLIT_DB:-FALSE}
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TMPDIR=/tmp/backups
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### Set the Database Type
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case "DBTYPE" in
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"influx" | "influxdb" | "INFLUX" | "INFLUXDB" )
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DBTYPE=influx
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DBPORT=${DB_PORT:-8088}
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;;
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"mongo" | "mongodb" | "MONGO" | "MONGODB" )
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DBTYPE=mongo
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DBPORT=${DB_PORT:-27017}
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[[ ( -n "${DB_USER}" ) ]] && MONGO_USER_STR=" --username ${DBUSER}"
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[[ ( -n "${DB_PASS}" ) ]] && MONGO_PASS_STR=" --password ${DBPASS}"
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[[ ( -n "${DB_NAME}" ) ]] && MONGO_DB_STR=" --db ${DBNAME}"
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;;
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"mysql" | "MYSQL" | "mariadb" | "MARIADB")
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DBTYPE=mysql
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DBPORT=${DB_PORT:-3306}
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[[ ( -n "${DB_PASS}" ) ]] && MYSQL_PASS_STR=" -p${DBPASS}"
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;;
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"postgres" | "postgresql" | "pgsql" | "POSTGRES" | "POSTGRESQL" | "PGSQL" )
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DBTYPE=pgsql
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DBPORT=${DB_PORT:-5432}
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[[ ( -n "${DB_PASS}" ) ]] && POSTGRES_PASS_STR="PGPASSWORD=${DBPASS} "
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;;
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"redis" | "REDIS" )
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DBTYPE=redis
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DBPORT=${DB_PORT:-6379}
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;;
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"rethink" | "RETHINK" )
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DBTYPE=rethink
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DBPORT=${DB_PORT:-28015}
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[[ ( -n "${DB_PASS}" ) ]] && echo $DB_PASS>/tmp/.rethink.auth; RETHINK_PASS_STR=" --password-file /tmp/.rethink.auth"
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[[ ( -n "${DB_NAME}" ) ]] && RETHINK_DB_STR=" -e ${DBNAME}"
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;;
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esac
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### Functions
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function backup_mysql() {
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if [ "$SPLIT_DB" = "TRUE" ] || [ "$SPLIT_DB" = "true" ]; then
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DATABASES=`mysql -h $DBHOST -u$DBUSER -p$DBPASS --batch -e "SHOW DATABASES;" | grep -v Database|grep -v schema`
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for db in $DATABASES; do
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if [[ "$db" != "information_schema" ]] && [[ "$db" != _* ]] ; then
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echo "** [db-backup] Dumping database: $db"
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TARGET=mysql_${db}_${DBHOST}_${now}.sql
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mysqldump --max-allowed-packet=512M -h $DBHOST -u$DBUSER ${MYSQL_PASS_STR} --databases $db > ${TMPDIR}/${TARGET}
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generate_md5
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compression
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move_backup
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fi
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done
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else
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mysqldump --max-allowed-packet=512M -A -h $DBHOST -u$DBUSER ${MYSQL_PASS_STR} > ${TMPDIR}/${TARGET}
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generate_md5
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compression
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move_backup
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fi
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}
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function backup_influx() {
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for DB in $DB_NAME; do
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influxd backup -database $DB -host {DBHOST} ${TMPDIR}/${TARGET}
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generate_md5
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compression
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move_backup
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done
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}
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function backup_mongo() {
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mongodump --out ${TMPDIR}/${TARGET} --host ${DBHOST} --port ${DBPORT} ${MONGO_USER_STR}${MONGO_PASS_STR}${MONGO_DB_STR} ${EXTRA_OPTS}
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cd ${TMPDIR}
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tar cf ${TARGET}.tar ${TARGET}/*
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TARGET=${TARGET}.tar
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generate_md5
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compression
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move_backup
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}
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function backup_pgsql() {
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if [ "$SPLIT_DB" = "TRUE" ] || [ "$SPLIT_DB" = "true" ]; then
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DATABASES=$( ${POSTGRES_PASS_STR} psql -h $DBHOST -U $DBUSER -c 'COPY (SELECT datname FROM pg_database WHERE datistemplate = false) TO STDOUT;' )
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for db in $DATABASES; do
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echo "** [db-backup] Dumping database: $db"
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TARGET=pgsql_${db}_${DBHOST}_${now}.sql
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${POSTGRES_PASS_STR} pg_dump -h ${DBHOST} -p ${DBPORT}-U ${DBUSER} $db > ${TMPDIR}/${TARGET}
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generate_md5
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compression
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move_backup
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done
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else
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${POSTGRES_PASS_STR} pg_dump -h ${DBHOST} -U ${DBUSER} $db > ${TMPDIR}/${TARGET}
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generate_md5
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compression
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move_backup
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fi
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}
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function backup_redis() {
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TARGET=redis_${db}_${DBHOST}_${now}.rdb
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echo bgsave | redis-cli -h ${DBHOST} -p ${DBPORT} --rdb ${TMPDIR]/${TARGET}
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echo "** [db-backup] Dumping Redis - Flushing Redis Cache First"
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sleep 10
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try=5
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while [ $try -gt 0 ] ; do
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saved=$(echo 'info Persistence' | redis-cli -h ${DBHOST} -p ${DBPORT} | awk '/rdb_bgsave_in_progress:0/{print "saved"}')
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ok=$(echo 'info Persistence' | redis-cli -h ${DBHOST} -p ${DBPORT} | awk '/rdb_last_bgsave_status:ok/{print "ok"}')
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if [[ "$saved" = "saved" ]] && [[ "$ok" = "ok" ]] ; then
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generate_md5
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compression
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move_backup
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fi
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try=$((try - 1))
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echo "** [db-backup] Redis Busy - Waiting and retrying in 5 seconds"
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sleep 5
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done
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}
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function backup_rethink() {
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TARGET=rethink_${db}_${DBHOST}_${now}.tar.gz
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echo "** [db-backup] Dumping rethink Database: $db"
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rethinkdb dump -f ${TMPDIR}/${TARGET} -c ${DBHOST}:${DBPORT} ${RETHINK_PASS_STR} ${RETHINK_DB_STR}
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move_backup
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}
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function compression() {
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case "$COMPRESSION" in
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"GZ" | "gz" | "gzip" | "GZIP")
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gzip ${TMPDIR}/${TARGET}
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TARGET=${TARGET}.gz
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;;
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"BZ" | "bz" | "bzip2" | "BZIP2" | "bzip" | "BZIP" | "bz2" | "BZ2")
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bzip2 ${TMPDIR}/${TARGET}
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TARGET=${TARGET}.bz2
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;;
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"XZ" | "xz" | "XZIP" | "xzip" )
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xz ${TMPDIR}/${TARGET}
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TARGET=${TARGET}.xz
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;;
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"NONE" | "none" | "FALSE" | "false")
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;;
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esac
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}
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function generate_md5() {
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if [ "$MD5" = "TRUE" ] || [ "$MD5" = "true" ] ; then
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cd $TMPDIR
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md5sum ${TARGET} > ${TARGET}.md5
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fi
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}
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function move_backup() {
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mkdir -p ${DB_DUMP_TARGET}
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mv ${TMPDIR}/*.md5 ${DB_DUMP_TARGET}/
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mv ${TMPDIR}/${TARGET} ${DB_DUMP_TARGET}/${TARGET}
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}
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### Container Startup
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echo '** [db-backup] Initialized at at '$(date)
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### Wait for Next time to start backup
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current_time=$(date +"%s")
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today=$(date +"%Y%m%d")
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if [[ $DB_DUMP_BEGIN =~ ^\+(.*)$ ]]; then
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waittime=$(( ${BASH_REMATCH[1]} * 60 ))
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else
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target_time=$(date --date="${today}${DB_DUMP_BEGIN}" +"%s")
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if [[ "$target_time" < "$current_time" ]]; then
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target_time=$(($target_time + 24*60*60))
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fi
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waittime=$(($target_time - $current_time))
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fi
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sleep $waittime
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### Commence Backup
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while true; do
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# make sure the directory exists
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mkdir -p $TMPDIR
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Define Target name
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now=$(date +"%Y%m%d-%H%M%S")
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TARGET=${DBTYPE}_${DBNAME}_${DBHOST}_${now}.sql
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### Take a Dump
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case "DBTYPE" in
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"influx" )
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function_backup_influx
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;;
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"mysql" )
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function_backup_mysql
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;;
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"mongo" )
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function_backup_mongo
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;;
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"pgsql" )
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function_backup_pgsql
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;;
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"redis" )
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function_backup_redis
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;;
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"rethink" )
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function_backup_rethink
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;;
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esac
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### Automatic Cleanup
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if [[ -n "$DB_CLEANUP_TIME" ]]; then
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find $DB_DUMP_TARGET/ -mmin +$DB_CLEANUP_TIME -iname "$DBTYPE_$DBNAME_*.*" -exec rm {} \;
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fi
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### Go back to Sleep until next Backup time
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sleep $(($DB_DUMP_FREQ*60))
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done
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fi
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