Update README.md with log.level details

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Enrico Stahn 2018-02-20 13:45:18 +11:00
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@ -35,25 +35,44 @@ The `server` command runs the server required for prometheus to retrieve the sta
| `--web.listen-address` | Address on which to expose metrics and web interface. | `PHP_FPM_WEB_LISTEN_ADDRESS` | [`:9253`](https://github.com/prometheus/prometheus/wiki/Default-port-allocations) |
| `--web.telemetry-path` | Path under which to expose metrics. | `PHP_FPM_WEB_TELEMETRY_PATH` | `/metrics` |
| `--phpfpm.scrape-uri` | FastCGI address, e.g. unix:///tmp/php.sock;/status or tcp://127.0.0.1:9000/status | `PHP_FPM_SCRAPE_URI` | `tcp://127.0.0.1:9000/status` |
| `--log.level` | Only log messages with the given severity or above. Valid levels: [debug, info, warn, error, fatal] (default "error") | PHP_FPM_LOG_LEVEL | info |
### CLI Examples
* Retrieve information from PHP-FPM running on `127.0.0.1:9000` with status endpoint being `/status`
```php-fpm_exporter get```
```
php-fpm_exporter get
```
* Retrieve information from PHP-FPM running on `127.0.0.1:9000` and `127.0.0.1:9001`
```php-fpm_exporter get --phpfpm.scrape-uri tcp://127.0.0.1:9000/status,tcp://127.0.0.1:9001/status```
```
php-fpm_exporter get --phpfpm.scrape-uri tcp://127.0.0.1:9000/status,tcp://127.0.0.1:9001/status
```
* Run as server with 2 pools:
```php-fpm_exporter server --phpfpm.scrape-uri tcp://127.0.0.1:9000/status,tcp://127.0.0.1:9001/status```
```
php-fpm_exporter server --phpfpm.scrape-uri tcp://127.0.0.1:9000/status,tcp://127.0.0.1:9001/status
```
### Docker Examples
* docker pull hipages/php-fpm_exporter
* docker run -it --rm -e PHP_FPM_SCRAPE_URI="tcp://127.0.0.1:9000/status,tcp://127.0.0.1:9001/status" hipages/php-fpm_exporter
* Run docker manually
```
docker pull hipages/php-fpm_exporter
docker run -it --rm -e PHP_FPM_SCRAPE_URI="tcp://127.0.0.1:9000/status,tcp://127.0.0.1:9001/status" hipages/php-fpm_exporter
```
* Run the docker-compose example
```
git clone git@github.com:hipages/php-fpm_exporter.git
cd php-fpm_exporter/test
docker-compose -p php-fpm_exporter up
```
You can now access the following links:
* Prometheus: http://127.0.0.1:9090/
* php-fpm_exporter metrics: http://127.0.0.1:9253/metrics
## Metrics collected