fix wrong placement of MYSQLDUMP_OPTS variable

Dockerfile

@@ -29,7 +29,8 @@ COPY --from=binary /go/bin/dockerize /usr/local/bin
 ENV CRON_TIME="0 3 * * sun" \
     MYSQL_HOST="mysql" \
     MYSQL_PORT="3306" \
-    TIMEOUT="10s"
+    TIMEOUT="10s" \
+    MYSQLDUMP_OPTS="--quick"
 
 COPY ["run.sh", "backup.sh", "restore.sh", "/"]
 RUN mkdir /backup && \

README.md

@@ -21,7 +21,7 @@ docker container run -d \
 - `MYSQL_PASS`: The password of your mysql database.
 - `MYSQL_PASS_FILE`: The file in container where to find the password of your mysql database (cf. docker secrets). You should use either MYSQL_PASS_FILE or MYSQL_PASS (see examples below).
 - `MYSQL_DATABASE`: The database name to dump. Default: `--all-databases`.
-- `MYSQLDUMP_OPTS`: Command line arguments to pass to mysqldump. Example: `--single-transaction`.
+- `MYSQLDUMP_OPTS`: Command line arguments to pass to mysqldump (see [mysqldump documentation](https://dev.mysql.com/doc/refman/8.0/en/mysqldump.html)).
 - `CRON_TIME`: The interval of cron job to run mysqldump. `0 3 * * sun` by default, which is every Sunday at 03:00. It uses UTC timezone.
 - `MAX_BACKUPS`: The number of backups to keep. When reaching the limit, the old backup will be discarded. No limit by default.
 - `INIT_BACKUP`: If set, create a backup when the container starts.

backup.sh

@@ -21,7 +21,7 @@ do
     echo "==> Dumping database: $db"
     FILENAME=/backup/$DATE.$db.sql
     LATEST=/backup/latest.$db.sql
-    if mysqldump --single-transaction -h "$MYSQL_HOST" -P "$MYSQL_PORT" -u "$MYSQL_USER" -p"$MYSQL_PASS" "$db" "$MYSQLDUMP_OPTS" > "$FILENAME"
+    if mysqldump --single-transaction "$MYSQLDUMP_OPTS" -h "$MYSQL_HOST" -P "$MYSQL_PORT" -u "$MYSQL_USER" -p"$MYSQL_PASS" "$db" > "$FILENAME"
     then
       EXT=
       if [ -z "${USE_PLAIN_SQL}" ]