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Description for *_FILE environment variables. Thanks to rockaut!

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Alexey Pustovalov
2019-11-01 01:43:21 +02:00
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web-nginx-mysql/ubuntu/README.md
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@ -92,9 +92,25 @@ This variable is IP or DNS name of MySQL server. By default, value is 'mysql-ser
This variable is port of MySQL server. By default, value is '3306'.
### `MYSQL_USER`, `MYSQL_PASSWORD`
### `MYSQL_USER`, `MYSQL_PASSWORD`, `MYSQL_USER_FILE`, `MYSQL_PASSWORD_FILE`
These variables are used by Zabbix web interface to connect to Zabbix database. By default, values are `zabbix`, `zabbix`.
These variables are used by Zabbix web-interface to connect to Zabbix database. With the `_FILE` variables you can instead provide the path to a file which contains the user / the password instead. Without Docker Swarm or Kubernetes you also have to map the files. Those are exclusive so you can just provide one type - either `MYSQL_USER` or `MYSQL_USER_FILE`!
```console
docker run --name some-zabbix-web-nginx-mysql -e DB_SERVER_HOST="some-mysql-server" -v ./.MYSQL_USER:/run/secrets/MYSQL_USER -e MYSQL_USER_FILE=/run/secrets/MYSQL_USER -v ./.MYSQL_PASSWORD:/run/secrets/MYSQL_PASSWORD -e MYSQL_PASSWORD_FILE=/var/run/secrets/MYSQL_PASSWORD -e PHP_TZ="some-timezone" -d zabbix/zabbix-web-nginx-mysql:tag
```
With Docker Swarm or Kubernetes this works with secrets. That way it is replicated in your cluster!
```console
printf "zabbix" | docker secret create MYSQL_USER -
printf "zabbix" | docker secret create MYSQL_PASSWORD -
docker run --name some-zabbix-web-nginx-mysql -e DB_SERVER_HOST="some-mysql-server" -e MYSQL_USER_FILE=/run/secrets/MYSQL_USER -e MYSQL_PASSWORD_FILE=/run/secrets/MYSQL_PASSWORD -e ZBX_SERVER_HOST="some-zabbix-server" -e PHP_TZ="some-timezone" -d zabbix/zabbix-web-nginx-mysql:tag
```
This method is also applicable for `MYSQL_ROOT_PASSWORD` with `MYSQL_ROOT_PASSWORD_FILE`.
By default, values for `MYSQL_USER` and `MYSQL_PASSWORD` are `zabbix`, `zabbix`.
### `MYSQL_DATABASE`