Adds migration script

s3-migration/migrate-s3.sh

@@ -0,0 +1,34 @@
+#!/bin/bash
+
+set -e
+
+# Check for existing ENVs
+if [[ -z "$ACCESSKEY" ]]; then
+	echo "=> No ACCESSKEY ENV found. Exit."; exit 1 ;
+fi
+
+if [[ -z "$SECRETKEY" ]]; then
+	echo "=> No SECRETKEY ENV found. Exit."; exit 1 ;
+fi
+
+if [[ -z "$SOURCE" ]]; then
+	echo "=> No SOURCE ENV found. Exit."; exit 1 ;
+fi
+
+if [[ -z "$TARGET" ]]; then
+        echo "=> No TARGET ENV found. Exit."; exit 1 ;
+fi
+
+mc alias set s3src $SOURCE $ACCESSKEY $SECRETKEY
+mc alias set s3trg $TARGET $ACCESSKEY $SECRETKEY
+
+mc admin config export s3src > config.txt
+mc admin config import s3trg < config.txt
+
+mc admin service restart s3trg
+
+mc admin cluster bucket export s3src
+mc admin cluster bucket import s3trg cluster-metadata.zip
+
+# mirroring
+mc mirror -preserve --watch s3src/gitea s3trg/gitea