60 lines
2.1 KiB
Markdown
60 lines
2.1 KiB
Markdown
|
# Multifile Input Plugin
|
||
|
|
|
||
|
|
### Description
|
||
|
|
The multifile input plugin allows telegraf to gather data from multiple files into a single point, creating one field or tag per file.
|
||
|
|
|
||
|
|
### Configuration
|
||
|
|
```
|
||
|
|
[[inputs.multifile]]
|
||
|
|
## Base directory where telegraf will look for files.
|
||
|
|
## Omit this option to use absolute paths.
|
||
|
|
base_dir = "/sys/bus/i2c/devices/1-0076/iio:device0"
|
||
|
|
|
||
|
|
## If true, Telegraf discard all data when a single file can't be read.
|
||
|
|
## Else, Telegraf omits the field generated from this file.
|
||
|
|
# fail_early = true
|
||
|
|
|
||
|
|
## Files to parse each interval.
|
||
|
|
[[inputs.multifile.file]]
|
||
|
|
file = "in_pressure_input"
|
||
|
|
dest = "pressure"
|
||
|
|
conversion = "float"
|
||
|
|
[[inputs.multifile.file]]
|
||
|
|
file = "in_temp_input"
|
||
|
|
dest = "temperature"
|
||
|
|
conversion = "float(3)"
|
||
|
|
[[inputs.multifile.file]]
|
||
|
|
file = "in_humidityrelative_input"
|
||
|
|
dest = "humidityrelative"
|
||
|
|
conversion = "float(3)"
|
||
|
|
```
|
||
|
|
* `file.file`:
|
||
|
|
Path of the file to be parsed
|
||
|
|
* `file.dest`:
|
||
|
|
Name of the field/tag created, defaults to `$(basename file)`
|
||
|
|
* `file.conversion`:
|
||
|
|
Data format used to parse the file contents
|
||
|
|
* `float(X)`: Converts the input value into a float and divides by the Xth power of 10. Efficively just moves the decimal left X places. For example a value of `123` with `float(2)` will result in `1.23`.
|
||
|
|
* `float`: Converts the value into a float with no adjustment. Same as `float(0)`.
|
||
|
|
* `int`: Convertes the value into an integer.
|
||
|
|
* `string`, `""`: No conversion
|
||
|
|
* `bool`: Convertes the value into a boolean
|
||
|
|
* `tag`: File content is used as a tag
|
||
|
|
|
||
|
|
### Example Output
|
||
|
|
This example shows a BME280 connected to a Raspberry Pi, using the sample config.
|
||
|
|
```
|
||
|
|
multifile pressure=101.343285156,temperature=20.4,humidityrelative=48.9 1547202076000000000
|
||
|
|
```
|
||
|
|
|
||
|
|
To reproduce this, connect a BMP280 to the board's GPIO pins and register the BME280 device driver
|
||
|
|
```
|
||
|
|
cd /sys/bus/i2c/devices/i2c-1
|
||
|
|
echo bme280 0x76 > new_device
|
||
|
|
```
|
||
|
|
|
||
|
|
The kernel driver provides the following files in `/sys/bus/i2c/devices/1-0076/iio:device0`:
|
||
|
|
* `in_humidityrelative_input`: `48900`
|
||
|
|
* `in_pressure_input`: `101.343285156`
|
||
|
|
* `in_temp_input`: `20400`
|