Adding support for custom S3 endpoint

mysql-backup-s3/Dockerfile

@@ -14,6 +14,7 @@ ENV S3_ACCESS_KEY_ID **None**
 ENV S3_SECRET_ACCESS_KEY **None**
 ENV S3_BUCKET **None**
 ENV S3_REGION us-west-1
+ENV S3_ENDPOINT **None**
 ENV S3_PREFIX 'backup'
 ENV MULTI_FILES no
 ENV SCHEDULE **None**

mysql-backup-s3/README.md

@@ -21,6 +21,7 @@ $ docker run -e S3_ACCESS_KEY_ID=key -e S3_SECRET_ACCESS_KEY=secret -e S3_BUCKET
 - `S3_BUCKET` your AWS S3 bucket path *required*
 - `S3_PREFIX` path prefix in your bucket (default: 'backup')
 - `S3_REGION` the AWS S3 bucket region (default: us-west-1)
+- `S3_ENDPOINT` the AWS Endpoint URL, for S3 Compliant APIs such as [minio](https://minio.io) (default: none)
 - `MULTI_FILES` Allow to have one file per database if set `yes` default: no)
 - `SCHEDULE` backup schedule time, see explainatons below
 

mysql-backup-s3/backup.sh

@@ -44,9 +44,15 @@ copy_s3 () {
   SRC_FILE=$1
   DEST_FILE=$2
 
+  if[ "${S3_ENDPOINT}" == "**None**" ]; then
+    AWS_ARGS=""
+  else
+    AWS_ARGS="--endpoint-url ${S3_ENDPOINT}"
+  fi
+
   echo "Uploading ${DEST_FILE} on S3..."
 
-  cat $SRC_FILE | aws s3 cp - s3://$S3_BUCKET/$S3_PREFIX/$DEST_FILE
+  cat $SRC_FILE | aws $AWS_ARGS s3 cp - s3://$S3_BUCKET/$S3_PREFIX/$DEST_FILE
 
   if [ $? != 0 ]; then
     >&2 echo "Error uploading ${DEST_FILE} on S3"