Configure user access permissions for an ossfs mount point - Object Storage Service - Alibaba Cloud - Object Storage Service

Prerequisites

OSS is activated.
A bucket is created. For more information, see Create a bucket.
ossfs is installed.

Scenarios

Share the permissions to access a directory to which a bucket is mounted: Other users can access the mount-point directory but not the files in it.
Share the permissions to access a directory to which a bucket is mounted and the permissions to write, read, and execute all files in the directory: Other users can access the mount-point directory and have full read, write, and execute permissions on all files in it.
Share the permissions to access a directory to which a bucket is mounted and specific permissions on files in the directory: Other users can access the mount-point directory and have custom permissions on files in it.

Parameters

Parameter

Description

allow_other

Allows other users to access the mount-point directory, but not the files in it. You can run the chmod command to modify file permissions separately. No value is required. To enable this option, add -oallow_other.

umask

Sets the permission mask for files and folders in the mount-point directory.

For example, -oumask=007 sets the permissions to 770, and -oumask=077 sets the permissions to 700.

Mounting examples

Share the permissions to access a directory to which a bucket is mounted

To mount an OSS bucket named mybucket to a local directory named /mnt/oss and grant other users access to the directory, run the following command:
```
ossfs mybucket /mnt/oss -ourl=http://oss-cn-****.aliyuncs.com -oallow_other
```
Share the permissions to access a directory to which a bucket is mounted and the permissions to write, read, and execute all files in the directory

To mount an OSS bucket named mybucket to a local directory named /mnt/oss and grant other users full read, write, and execute permissions on the directory and its files, run the following command:
```
ossfs mybucket /mnt/oss -ourl=http://oss-cn-****.aliyuncs.com -oallow_other -oumask=000
```
Share the permissions to access a directory to which a bucket is mounted and specific permissions on files in the directory

Note
Use the -oumask parameter to grant different permissions on files to different users.

To mount an OSS bucket named mybucket to a local directory named /mnt/oss and grant other users read, write, and execute permissions on the files, run the following command:
```
ossfs mybucket /mnt/oss -ourl=http://oss-cn-****.aliyuncs.com -oallow_other -oumask=000
```