nextcloud on Raspberry Pi

md

nextcloud on Raspberry Pi
===
### ubuntu core
- nextcloudPi [image](https://ubuntu.com/appliance/nextcloud/raspberry-pi)
- snapcraft, specilly for IoT
- similar with CoreOS(FCOS),  which is using ```rpm-tree```, instead ubuntu core using snap
- snap [set proxy](https://askubuntu.com/questions/764610/how-to-install-snap-packages-behind-web-proxy-on-ubuntu-16-04)
```
$ sudo snap set system proxy.http="http://<proxy_addr>:<proxy_port>"
$ sudo snap set system proxy.https="http://<proxy_addr>:<proxy_port>"
```
- [using classic](https://askubuntu.com/questions/902905/install-applications-in-ubuntu-core)
```
sudo snap install classic --devmode --edge
sudo classic
```
### occ use example
- add trusted domains
```
sudo nextcloud.occ config:system:set trusted_domains 2 --value=your.domain
```
- list external_files
```
 sudo nextcloud.occ files_external:list
```
- files scan
```
sudo nextcloud.occ files:scan --all
```
### usb hdd as external storage
- mount on ubuntu core, [using systemd.mount](https://askubuntu.com/questions/853847/fstab-in-ubuntu-core-16-to-mount-external-hd)
```
sudo vi /etc/systemd/system/media-data.mount
[Unit]
Description=Mount unit for data

[Mount]
What=/dev/disk/by-uuid/4E1AEA7B1AEA6007
Where=/media/data
Type=ntfs
Options=umask=0000,iocharset=utf8,codepage=936

[Install]
WantedBy=multi-user.target
sudo systemctl daemon-reload
sudo systemctl start media-data.mount
sudo systemctl enable media-data.mount
```
- external storage [can't upload files](https://help.nextcloud.com/t/permissions-issue-with-data-storage-snap-solved/81023/5)
```
sudo snap connect nextcloud:removable-media
```