From 3438bcf270583318a57e4ca9a4b0675691e3f28d Mon Sep 17 00:00:00 2001
From: Adam Engebretson <adam@enge.me>
Date: Fri, 20 Jan 2017 16:59:24 -0600
Subject: [PATCH] Enabling AWS Signature v4

- Added env S3_S3V4
---
 mysql-backup-s3/Dockerfile | 1 +
 mysql-backup-s3/README.md  | 1 +
 mysql-backup-s3/run.sh     | 4 ++++
 3 files changed, 6 insertions(+)

diff --git a/mysql-backup-s3/Dockerfile b/mysql-backup-s3/Dockerfile
index a4d6006..4ca56bc 100644
--- a/mysql-backup-s3/Dockerfile
+++ b/mysql-backup-s3/Dockerfile
@@ -15,6 +15,7 @@ ENV S3_SECRET_ACCESS_KEY **None**
 ENV S3_BUCKET **None**
 ENV S3_REGION us-west-1
 ENV S3_ENDPOINT **None**
+ENV S3_S3V4 no
 ENV S3_PREFIX 'backup'
 ENV MULTI_FILES no
 ENV SCHEDULE **None**
diff --git a/mysql-backup-s3/README.md b/mysql-backup-s3/README.md
index f06eacc..ac3a29f 100644
--- a/mysql-backup-s3/README.md
+++ b/mysql-backup-s3/README.md
@@ -22,6 +22,7 @@ $ docker run -e S3_ACCESS_KEY_ID=key -e S3_SECRET_ACCESS_KEY=secret -e S3_BUCKET
 - `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)
+- `S3_S3V4` set to `yes` to enable AWS Signature Version 4, required for [minio](https://minio.io) servers (default: no)
 - `MULTI_FILES` Allow to have one file per database if set `yes` default: no)
 - `SCHEDULE` backup schedule time, see explainatons below
 
diff --git a/mysql-backup-s3/run.sh b/mysql-backup-s3/run.sh
index 05dfcaa..8cc86cc 100644
--- a/mysql-backup-s3/run.sh
+++ b/mysql-backup-s3/run.sh
@@ -2,6 +2,10 @@
 
 set -e
 
+if [ "${S3_S3V4}" = "yes"]; then
+    aws configure set default.s3.signature_version s3v4
+fi
+
 if [ "${SCHEDULE}" = "**None**" ]; then
   sh backup.sh
 else