feat: Add storage class header (#119)

* feat: Add storage class header

* doc: change the readme

* chore: Remove the unnecessary default  value

README.md

@@ -221,6 +221,11 @@ You can populate below template according to your requirements and use it as you
 
 # AWS_ENDPOINT_INSECURE="true"
 
+# Setting this variable will change the S3 storage class header.
+# Defaults to "STANDARD", you can set this value according to your needs.
+
+# AWS_STORAGE_CLASS="GLACIER"
+
 # You can also backup files to any WebDAV server:
 
 # The URL of the remote WebDAV server

cmd/backup/config.go

@@ -28,6 +28,7 @@ type Config struct {
 	AwsEndpoint                string        `split_words:"true" default:"s3.amazonaws.com"`
 	AwsEndpointProto           string        `split_words:"true" default:"https"`
 	AwsEndpointInsecure        bool          `split_words:"true"`
+	AwsStorageClass            string        `split_words:"true"`
 	AwsAccessKeyID             string        `envconfig:"AWS_ACCESS_KEY_ID"`
 	AwsSecretAccessKey         string        `split_words:"true"`
 	AwsIamRoleEndpoint         string        `split_words:"true"`

cmd/backup/script.go

@@ -7,8 +7,6 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"github.com/pkg/sftp"
-	"golang.org/x/crypto/ssh"
 	"io"
 	"io/fs"
 	"io/ioutil"
@@ -20,6 +18,9 @@ import (
 	"text/template"
 	"time"
 
+	"github.com/pkg/sftp"
+	"golang.org/x/crypto/ssh"
+
 	"github.com/containrrr/shoutrrr"
 	"github.com/containrrr/shoutrrr/pkg/router"
 	"github.com/docker/docker/api/types"
@@ -547,7 +548,8 @@ func (s *script) copyBackup() error {
 
 	if s.minioClient != nil {
 		if _, err := s.minioClient.FPutObject(context.Background(), s.c.AwsS3BucketName, filepath.Join(s.c.AwsS3Path, name), s.file, minio.PutObjectOptions{
-			ContentType: "application/tar+gzip",
+			ContentType:  "application/tar+gzip",
+			StorageClass: s.c.AwsStorageClass,
 		}); err != nil {
 			return fmt.Errorf("copyBackup: error uploading backup to remote storage: %w", err)
 		}