Backup 3CX to Google Storage Bucket

Posted on 2 mins read

Update: 3CX v16 now natively supports backing up to Google Cloud Storage

Automatic Google Cloud Snapshots

Using GoogleCloudPlatform/gcsfuse

Prerequesits:

  • Set Storage API scope for Compute Engine to Full (requires VM shutdown)

Install gcsfuse

export GCSFUSE_REPO=gcsfuse-`lsb_release -c -s`
echo "deb http://packages.cloud.google.com/apt $GCSFUSE_REPO main" | sudo tee /etc/apt/sources.list.d/gcsfuse.list
curl https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -
sudo apt-get update
sudo apt-get install gcsfuse

Edit fuse.conf

sudo nano /etc/fuse.conf

Remove # from

# user_allow_other

Set up mount point for automatic mounting

sudo mkdir /mnt/gbucket
sudo nano /etc/fstab

Add to the end of the file:

999 = phonesystem user required for the 3CX app to have write permissions to the folder

bucketname /mnt/gbucket gcsfuse rw,allow_other,uid=999,gid=999,dir_mode=775,file_mode=775,nonempty

Move existing backups

If migrating from Google Drive you can download them from Google drive and then upload via the Google Cloud Console)

sudo mkdir /mnt/gbucket/Backups
sudo mv /var/lib/3cxpbx/Instance1/Data/Backups/* /mnt/gbucket/Backups/
sudo rm -R /var/lib/3cxpbx/Instance1/Data/Backups/
sudo ln -fs /mnt/gbucket/Backups /var/lib/3cxpbx/Instance1/Data/Backups

Unmount

sudo fusermount -u /mnt/gbucket

To Run manually

sudo gcsfuse -o rw,allow_other,nonempty --uid 999 --gid 999 --dir-mode 775 --file-mode 775 bucketname /mnt/gbucket

Test

Run a manual backup in 3CX and ensure it is created - if you run into I/O or permission errors you have either not set the correct uid / gid or you can try and experiment with different dir-mode / file-mode values. To find out the id of a given user run

id username