GuillaumeHemmen/docker-mysql-cron-backup
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Merge pull request #48 from fradelg/no-root-user

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Fco. Javier Delgado del Hoyo 2021-05-13 21:00:28 +02:00 committed by GitHub
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4 changed files with 26 additions and 15 deletions
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20
Dockerfile
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@ -3,7 +3,9 @@ RUN apk -U add openssl git
ARG DOCKERIZE_VERSION=v0.6.1
WORKDIR /go/src/github.com/jwilder
RUN git clone https://github.com/jwilder/dockerize.git && cd dockerize && git checkout ${DOCKERIZE_VERSION}
RUN git clone https://github.com/jwilder/dockerize.git && \
cd dockerize && \
git checkout ${DOCKERIZE_VERSION}
WORKDIR /go/src/github.com/jwilder/dockerize
RUN go get github.com/robfig/glock
@ -13,7 +15,14 @@ RUN go install
FROM alpine:3.12
LABEL maintainer "Fco. Javier Delgado del Hoyo <frandelhoyo@gmail.com>"
RUN apk add --update tzdata bash mysql-client gzip openssl mariadb-connector-c && rm -rf /var/cache/apk/*
RUN apk add --update \
tzdata \
bash \
mysql-client \
gzip \
openssl \
mariadb-connector-c && \
rm -rf /var/cache/apk/*
COPY --from=binary /go/bin/dockerize /usr/local/bin
@ -23,7 +32,12 @@ ENV CRON_TIME="0 3 * * sun" \
TIMEOUT="10s"
COPY ["run.sh", "backup.sh", "restore.sh", "/"]
RUN mkdir /backup && chmod u+x /backup.sh /restore.sh
RUN mkdir /backup && \
chmod 777 /backup && \
chmod 755 /run.sh /backup.sh /restore.sh && \
touch /mysql_backup.log && \
chmod 666 /mysql_backup.log
VOLUME ["/backup"]
CMD dockerize -wait tcp://${MYSQL_HOST}:${MYSQL_PORT} -timeout ${TIMEOUT} /run.sh

6
README.md
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@ -1,8 +1,6 @@
[![Build Status](https://travis-ci.org/fradelg/docker-mysql-cron-backup.svg?branch=master)](https://travis-ci.org/fradelg/docker-mysql-cron-backup)
# mysql-cron-backup
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.
Run mysqldump to backup your databases periodically using the cron task manager in the container. Your backups are saved in `/backup`. You can mount any directory of your host or a docker volumes in /backup. Othwerwise, a docker volume is created in the default location.
## Usage:
@ -103,7 +101,7 @@ mysql-cron-backup:
### Restore using a docker command
```bash
docker container exec <your_mysql_backup_container_name> /restore.sh backup/<your_sql_backup_gz_file>
docker container exec <your_mysql_backup_container_name> /restore.sh /backup/<your_sql_backup_gz_file>
```
if no database name is specified, `restore.sh` will try to find the database name from the backup file.

4
backup.sh
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@ -14,12 +14,12 @@ do
echo "==> Dumping database: $db"
FILENAME=/backup/$DATE.$db.sql
LATEST=/backup/latest.$db.sql.gz
if mysqldump --single-transaction -h "$MYSQL_HOST" -P "$MYSQL_PORT" -u "$MYSQL_USER" -p"$MYSQL_PASS" $db $MYSQLDUMP_OPTS > "$FILENAME"
if mysqldump --single-transaction -h "$MYSQL_HOST" -P "$MYSQL_PORT" -u "$MYSQL_USER" -p"$MYSQL_PASS" "$db" $MYSQLDUMP_OPTS > "$FILENAME"
then
gzip "-$GZIP_LEVEL" -f "$FILENAME"
echo "==> Creating symlink to latest backup: $(basename "$FILENAME".gz)"
rm "$LATEST" 2> /dev/null
cd /backup || exit && ln -s $(basename "$FILENAME".gz) $(basename "$LATEST") && cd -
cd /backup || exit && ln -s "$(basename "$FILENAME".gz)" "$(basename "$LATEST")"
DB_COUNTER=$(( DB_COUNTER + 1 ))
else
rm -rf "$FILENAME"

11
run.sh
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@ -1,5 +1,4 @@
#!/bin/bash
touch /mysql_backup.log
tail -F /mysql_backup.log &
if [ "${INIT_BACKUP}" -gt "0" ]; then
@ -12,10 +11,10 @@ elif [ -n "${INIT_RESTORE_LATEST}" ]; then
echo "waiting database container..."
sleep 1
done
find /backup -maxdepth 1 -name '*.sql.gz' | tail -1 | xargs /restore.sh
find /backup -maxdepth 1 -name '*.sql.gz' | tail -1 | xargs /restore.sh
fi
echo "${CRON_TIME} /backup.sh >> /mysql_backup.log 2>&1" > /crontab.conf
crontab /crontab.conf
echo "=> Running cron task manager"
exec crond -f
echo "${CRON_TIME} /backup.sh >> /mysql_backup.log 2>&1" > /tmp/crontab.conf
crontab /tmp/crontab.conf
echo "=> Running cron task manager in foreground"
exec crond -f -l 8 -L /mysql_backup.log