bucket 权限

桶默认可以有三种 Access Policy 策略：public、custom、private。

• public：不经过任何认证可以直接访问资源
• custom：自定义策略 Access Rule
• private：未经授权不能进行任何操作，所有Access Rules失效

策略为custom

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "s3:GetObject",
                "s3:ListAllMyBuckets",
                "s3:ListBucket",
                "s3:PutObject",
                "s3:DeleteObject",
                "s3:GetBucketLocation"
            ],
            "Resource": [
                "arn:aws:s3:::<bucket-name>/*"
            ]
        }
    ]
}

go设置桶权限

func (m *minio) SetUserBucketsAccess(ctx context.Context, userName string, buckets []string) error {
	rs := make([]string, 0)
	for _, b := range buckets {
		rs = append(rs, fmt.Sprintf(`"arn:aws:s3:::%s/*"`, b))
	}

	policy := fmt.Sprintf(`{"Version": "2012-10-17","Statement": [{"Action": ["s3:*"],"Effect": "Allow","Resource": [%s]}]}`, strings.Join(rs, ","))
	fmt.Println(policy)
	err := m.adminClient.AddCannedPolicy(ctx, userName, []byte(policy))
	if err != nil {
		return errors.Errorf(nil, errors.ErrorMinioOperationFailed)
	}

	err = m.adminClient.SetPolicy(ctx, userName, userName, false)
	if err != nil {
		return errors.Errorf(nil, errors.ErrorMinioOperationFailed)
	}

	return nil
}