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#! /bin/sh
set -e
if [ "${S3_ACCESS_KEY_ID}" == "**None**" ]; then
echo "You need to set the S3_ACCESS_KEY_ID environment variable."
exit 1
fi
if [ "${S3_SECRET_ACCESS_KEY}" == "**None**" ]; then
echo "You need to set the S3_SECRET_ACCESS_KEY environment variable."
exit 1
fi
if [ "${S3_BUCKET}" == "**None**" ]; then
echo "You need to set the S3_BUCKET environment variable."
exit 1
fi
if [ "${MYSQL_HOST}" == "**None**" ]; then
echo "You need to set the MYSQL_HOST environment variable."
exit 1
fi
if [ "${MYSQL_USER}" == "**None**" ]; then
echo "You need to set the MYSQL_USER environment variable."
exit 1
fi
if [ "${MYSQL_PASSWORD}" == "**None**" ]; then
echo "You need to set the MYSQL_PASSWORD environment variable or link to a container named MYSQL."
exit 1
fi
# env vars needed for aws tools
export AWS_ACCESS_KEY_ID=$S3_ACCESS_KEY_ID
export AWS_SECRET_ACCESS_KEY=$S3_SECRET_ACCESS_KEY
export AWS_DEFAULT_REGION=$S3_REGION
MYSQL_HOST_OPTS="-h $MYSQL_HOST -P $MYSQL_PORT -u$MYSQL_USER -p$MYSQL_PASSWORD"
DUMP_START_TIME=$(date +"%Y-%m-%dT%H%M%SZ")
copy_s3 () {
SRC_FILE=$1
DEST_FILE=$2
echo "Uploading ${DEST_FILE} on S3..."
cat $SRC_FILE | aws s3 cp - s3://$S3_BUCKET/$S3_PREFIX/$DEST_FILE
if [ $? != 0 ]; then
>&2 echo "Error uploading ${DEST_FILE} on S3"
fi
rm $SRC_FILE
}
# Multi file: yes
if [ ! -z "$(echo $MULTI_FILES | grep -i -E "(yes|true|1)")" ]; then
if [ "${MYSQLDUMP_DATABASE}" == "--all-databases" ]; then
DATABASES=`mysql $MYSQL_HOST_OPTS -e "SHOW DATABASES;" | grep -Ev "(Database|information_schema|performance_schema|mysql)"`
else
DATABASES=$MYSQLDUMP_DATABASE
fi
for DB in $DATABASES; do
echo "Creating individual dump of ${DB} from ${MYSQL_HOST}..."
DUMP_FILE="/tmp/${DB}.sql.gz"
mysqldump $MYSQL_HOST_OPTS $MYSQLDUMP_OPTIONS --databases $DB | gzip > $DUMP_FILE
if [ $? == 0 ]; then
S3_FILE="${DUMP_START_TIME}.${DB}.sql.gz"
copy_s3 $DUMP_FILE $S3_FILE
else
>&2 echo "Error creating dump of ${DB}"
fi
done
# Multi file: no
else
echo "Creating dump for ${MYSQLDUMP_DATABASE} from ${MYSQL_HOST}..."
DUMP_FILE="/tmp/dump.sql.gz"
mysqldump $MYSQL_HOST_OPTS $MYSQLDUMP_OPTIONS $MYSQLDUMP_DATABASE | gzip > $DUMP_FILE
if [ $? == 0 ]; then
S3_FILE="${DUMP_START_TIME}.dump.sql.gz"
copy_s3 $DUMP_FILE $S3_FILE
else
>&2 echo "Error creating dump of all databases"
fi
fi
echo "SQL backup finished"