tempdirectory is not used (snap install)

[qm2k]

Steps to reproduce

1. Install Nextcloud via snap on a system with limited space on root filesystem.
2. Set tempdirectory in config.php pointing to /media/temp
3. Upload large file.
4. Monitor space usage, files in /media/temp, /var/snap/nextcloud/common/nextcloud/tmp

Expected behaviour

File gets uploaded successfully, space on root filesystem is not used.

Actual behaviour

Temporary file is created in /var/snap/nextcloud/common/nextcloud/tmp, not in /media/temp, then upload fails when system runs out of space.

(Note that config below does not contain tempdirectory since I'm filling this issue via Issue reporting app on production system where it is already deleted, but it was set with exactly this command (taken from bash history:

nextcloud.occ config:system:set tempdirectory --value '/media/temp'

and the system was rebooted before tests.)

Server configuration detail

Operating system: Linux 4.4.0-103-generic #126-Ubuntu SMP Mon Dec 4 16:23:28 UTC 2017 x86_64

Webserver: Apache/2.4.28 (Unix) (fpm-fcgi)

Database: mysql 5.7.18

PHP version: 7.0.25
Modules loaded: Core, date, libxml, openssl, pcre, sqlite3, zlib, bz2, ctype, curl, dom, hash, fileinfo, filter, gd, SPL, iconv, intl, json, mbstring, mcrypt, PDO, session, pdo_sqlite, posix, Reflection, standard, SimpleXML, mysqlnd, exif, tokenizer, xml, xmlreader, xmlwriter, zip, pdo_mysql, cgi-fcgi, redis, Zend OPcache

Nextcloud version: 12.0.4 - 12.0.4.3

Updated from an older Nextcloud/ownCloud or fresh install: Updated from version 11 by snapd.

Where did you install Nextcloud from: snap

Signing status

No errors have been found.

List of activated apps

Enabled:
 - activity: 2.5.2
 - apporder: 0.4.1
 - bruteforcesettings: 1.0.2
 - calendar: 1.5.7
 - comments: 1.2.0
 - contacts: 2.0.1
 - dav: 1.3.0
 - federatedfilesharing: 1.2.0
 - federation: 1.2.0
 - files: 1.7.2
 - files_clipboard: 0.6.4
 - files_pdfviewer: 1.1.1
 - files_sharing: 1.4.0
 - files_texteditor: 2.4.1
 - files_trashbin: 1.2.0
 - files_versions: 1.5.0
 - files_videoplayer: 1.1.0
 - firstrunwizard: 2.1
 - gallery: 17.0.0
 - groupfolders: 1.1.0
 - issuetemplate: 0.3.0
 - logreader: 2.0.0
 - lookup_server_connector: 1.0.0
 - nextcloud_announcements: 1.1
 - notifications: 2.0.0
 - oauth2: 1.0.5
 - password_policy: 1.2.2
 - provisioning_api: 1.2.0
 - serverinfo: 1.2.0
 - sharebymail: 1.2.0
 - spreed: 2.0.2
 - survey_client: 1.0.0
 - systemtags: 1.2.0
 - theming: 1.3.0
 - twofactor_backupcodes: 1.1.1
 - twofactor_totp: 1.3.1
 - workflowengine: 1.2.0
Disabled:
 - admin_audit
 - encryption
 - files_external
 - mail
 - radio
 - registration
 - user_external
 - user_ldap

Configuration (config/config.php)

{
    "apps_paths": [
        {
            "path": "\/snap\/nextcloud\/current\/htdocs\/apps",
            "url": "\/apps",
            "writable": false
        },
        {
            "path": "\/var\/snap\/nextcloud\/current\/nextcloud\/extra-apps",
            "url": "\/extra-apps",
            "writable": true
        }
    ],
    "supportedDatabases": [
        "mysql"
    ],
    "memcache.locking": "\\OC\\Memcache\\Redis",
    "memcache.local": "\\OC\\Memcache\\Redis",
    "redis": {
        "host": "\/tmp\/sockets\/redis.sock",
        "port": 0
    },
    "instanceid": "oc45f8iuvd3p",
    "passwordsalt": "***REMOVED SENSITIVE VALUE***",
    "secret": "***REMOVED SENSITIVE VALUE***",
    "trusted_domains": [
        "server.example.com",
        "cloud.example.com"
    ],
    "datadirectory": "\/media\/user-data\/",
    "dbtype": "mysql",
    "version": "12.0.4.3",
    "dbname": "nextcloud",
    "dbhost": "localhost:\/tmp\/sockets\/mysql.sock",
    "dbport": "",
    "dbtableprefix": "oc_",
    "dbuser": "***REMOVED SENSITIVE VALUE***",
    "dbpassword": "***REMOVED SENSITIVE VALUE***",
    "logtimezone": "UTC",
    "installed": true,
    "mail_smtpmode": "smtp",
    "mail_from_address": "nextcloud",
    "mail_domain": "example.com",
    "mail_smtphost": "smtp.example.com",
    "mail_smtpport": "587",
    "overwriteprotocol": "https",
    "overwritewebroot": "\/nextcloud",
    "default_language": "ru",
    "htaccess.RewriteBase": {
        "\/nextcloud": ""
    },
    "trusted_proxies": [
        "10.1.2.3"
    ],
    "overwritehost": "cloud.example.com",
    "mail_smtpsecure": "tls",
    "overwrite.cli.url": "https:\/\/cloud.example.com\/nextcloud",
    "skeletondirectory": "",
    "loglevel": 2,
    "maintenance": false,
    "tempdirectory": "\/media\/temp"
}

Are you using external storage, if yes which one: no

Are you using encryption: no

Are you using an external user-backend, if yes which one: no

Client configuration

Browser: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0

Operating system: Ubuntu 16.04

[rullzer]

Please fill at https://github.com/nextcloud/nextcloud-snap

[qm2k]

It's been some time and I no longer administer the service in question. Whoever still needs to upload large files to Nextcloud are welcome to reopen the issue where necessary.