GuillaumeHemmen/docker-mysql-cron-backup
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Merge pull request #8 from fradelg/develop

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Fco. Javier Delgado del Hoyo 2017-09-11 09:56:05 +02:00 committed by GitHub
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18
README.md
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@ -2,15 +2,15 @@
# mysql-cron-backup
This image runs mysqldump to backup your databases periodically using cron. Data is dumped to `/backup` so you can mount your backup volumes in this path.
This docker image runs mysqldump to backup your databases periodically using cron task manager. Backups are placed in `/backup` so you can mount your backup docker volume in this path.
## Usage:
docker run -d \
--env MYSQL_USER=admin \
--env MYSQL_PASS=password \
docker container run -d \
--env MYSQL_USER=root \
--env MYSQL_PASS=my_password \
--link mysql
--volume /path/to/my/host/folder:/backup
--volume /path/to/my/backup/folder:/backup
fradelg/mysql-backup
## Variables
@ -27,10 +27,10 @@ This image runs mysqldump to backup your databases periodically using cron. Data
## Restore from a backup
See the list of backups, you can run:
See the list of backups in your running docker container, just write in your favorite terminal:
docker exec backup ls /backup
docker container exec backup ls /backup
To restore database from a certain backup, simply run:
To restore a database from a certain backup, simply run:
docker exec backup /restore.sh /backup/2015.08.06.171901
docker container exec backup /restore.sh /backup/201708060500.my_db.sql.gz

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backup.sh Normal file → Executable file
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@ -5,12 +5,13 @@
DATE=$(date +%Y%m%d%H%M)
echo "=> Backup started at $DATE"
databases=$(mysql -u "$MYSQL_USER" -p"$MYSQL_PASS" -e "SHOW DATABASES;" | tr -d "| " | grep -v Database)
for db in $databases; do
for db in $databases
do
if [[ "$db" != "information_schema" ]] && [[ "$db" != "performance_schema" ]] && [[ "$db" != "mysql" ]] && [[ "$db" != _* ]]
then
echo "Dumping database: $db"
FILENAME=/backup/$DATE.$db.sql
if mysqldump -h "$MYSQL_HOST" -P "$MYSQL_PORT" -u "$MYSQL_USER" -p"$MYSQL_PASS" "$db" > "$FILENAME"
if mysqldump -h "$MYSQL_HOST" -P "$MYSQL_PORT" -u "$MYSQL_USER" -p"$MYSQL_PASS" --databases "$db" > "$FILENAME"
then
gzip -f "$FILENAME"
else
@ -21,7 +22,7 @@ done
if [ -n "$MAX_BACKUPS" ]
then
while [ "$(find /backup -maxdepth 1 -name "*.sql.gz" | wc -l)" -gt "$MAX_BACKUPS" ];
while [ "$(find /backup -maxdepth 1 -name "*.sql.gz" | wc -l)" -gt "$MAX_BACKUPS" ]
do
TARGET=$(find /backup -maxdepth 1 -name "*.sql.gz" | sort | head -n 1)
echo "Backup $TARGET is deleted"

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restore.sh Normal file → Executable file
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@ -1,6 +1,16 @@
#!/bin/bash
[ -z "${MYSQL_USER}" ] && { echo "=> MYSQL_USER cannot be empty" && exit 1; }
[ -z "${MYSQL_PASS}" ] && { echo "=> MYSQL_PASS cannot be empty" && exit 1; }
if [ "$#" -ne 1 ]
then
echo "You must pass the path of the backup file to restore"
fi
echo "=> Restore database from $1"
if mysql -h "$MYSQL_HOST" -P "$MYSQL_PORT" -u "$MYSQL_USER" -p"$MYSQL_PASS" < "$1" ;then
set -o pipefail
if gunzip --stdout "$1" | mysql -h "$MYSQL_HOST" -P "$MYSQL_PORT" -u "$MYSQL_USER" -p"$MYSQL_PASS"
then
echo "=> Restore succeeded"
else
echo "=> Restore failed"