Getting permission denied on uploads only

[arielGribov]

Hi everyone.

I have an sftp vm in GCP with a bucket mounted to it using the gcsfuse.
a third-party client(Cyberduck) is trying to upload and download files to that bucket directory through the VM.
the client is able to download files from the bucket directory but is not able to upload files(getting permission denied).
I did chmod -R 777 /path/to/repo and after this
gcsfuse -o allow_other bucket_name /path/to/repo.

From the VM (in an SSH connection) I can upload and download files to the bucket directory,
From the client, I can access the VM and upload and download files to every directory besides the bucket directory itself.

Thanks in advance.

[ashmeenkaur]

GCSFuse is not recommended for use as a bucket in an SFTP server, and this is not a supported use case. Please refer to the file handle limits limitation here: https://cloud.google.com/storage/docs/cloud-storage-fuse/overview#expandable-1.

GCSFuse defaults to file-mode 0644 and dir-mode 0755 for mounted files and directories. I suspect that the other user (the third-party client user in this case) does not have write permissions to your directory. You can use the --file-mode and --dir-mode flags along with allow_other flag to set the appropriate permissions. Please note that GCSFuse does not support chmod and similar operations to control access.

Please refer to https://github.com/GoogleCloudPlatform/gcsfuse/blob/master/docs/semantics.md#permissions-and-ownership for more information.

Let me know if this resolves the issue.

[arielGribov]

Thank you for your reply.
Indeed, changing the access with those flags worked successfully.