Support ENV variable for nextcloud logging behavior

[MarkusGnigler]

In order to go with best practice for docker. Would it be usefull to implement a logging behavior via env variables?
That way it can be configured to log to SdtOut on startup.

I think it's usefull for:
- orchestrator like swarm/kubernetes.
- centralized logging
- fail2ban with docker json logging driver

For example in the alpine image we could implement another config.php somthing like log.config.php

LOGFILE=/dev/stdout
LOGTIMEZONE=Europe/Vienna

<?php

$CONFIG = array(
    'loglevel' => getenv('LOGLEVEL') ?: 2,
    'logtimezone' => getenv('LOGTIMEZONE') ?: 'Europe/Vienna',
    'syslog_tag' => getenv('LOGTAG') ?: 'Nextcloud',
);

if (getenv('LOGFILE')) {
    $CONFIG['logfile'] = getenv('LOGFILE');
} else {
    $CONFIG['logfile'] = getenv('NEXTCLOUD_DATA_DIR') ?: '/var/www/nextcloud' + '/nextcloud.log';
}

I can create a pr, but have requested before so I don't waste time on it.

Regards
Markus

[attzonko]

Since it's a warning in the admin panel, would it also be a good idea to implement an env variable for the default_phone_region setting?

<?php

$CONFIG = array(
    'default_phone_region' => getenv('DEFAULT_PHONE_REGION') ?: 'EN',
);

I came here looking for such an ENV setting for the default phone region. I don't want to have to change config.php at all from the default the image comes with.

[chrisr4g]

Since it's a warning in the admin panel, would it also be a good idea to implement an env variable for the default_phone_region setting?

<?php

$CONFIG = array(
    'default_phone_region' => getenv('DEFAULT_PHONE_REGION') ?: 'EN',
);

I came here looking for such an ENV setting for the default phone region. I don't want to have to change config.php at all from the default the image comes with.

You can achieve any actions needed inside the container using a bash script.
Inside the bash you just have to run (if you use docker-compose)
docker-compose exec -u www-data php -f /var/www/html/occ config:system:set default_phone_region --value 'uk'
Just to be clear about it (because I struggled with it too): php occ config:system:set array (optional)key --value 'value'
!Important: You have to wait untill nextcloud is up and running to execute the command.

Also you can set the logging inside the config too, to a specific file with the same method.
Ex.:
php occ config:system:set log_type --value "file"
php occ config:system:set logfile --value "DEBUG_LOGS.log"
php occ config:system:set logLevel --value 0
php occ config:system:set logdateformat --value "F d, Y H:i:s"
However I agree it would benefit everyone to be able to set the logging from env file.

[J0WI]

You can already use environment variables like NC_loglevel.

[joshtrichards]

Closing since this is already supported in at least two ways:

• Using the existing NC_* and related variables support in Server that can be used for overriding any config.php values (at least those that don't contain periods and/or aren't arrays) (as noted above but could maybe be better documented as noted in Document how to use NC_* environment variables with Nextcloud Server via the image #2226)
• The Auto Configuration via Hook folders support permits setting any value via the `occ config:sys:set) (and could maybe be better documented with some examples that set options this way as noted in Add some auto config via hooks examples (e.g. setting arbitrary config.php values via occ config:system:set #2231)