Slackbot for allerting

[saroele]

The idea:

• each analysis computes a KPI per sensor/per device / per site
• this KPI is compared to a threshold value, obtained from an alert config file
• an alert is raised when the KPI is above the threshold
• user feedback is gathered in case of an alert: ==> if the alert is correct, the threshold is kept ==> if an alert is a false positive, the threshold is lowered
• when no alert is raised for xxx time, a thumbs-up report is sent to give more background and ask confirmation of the settings to the user.

[saroele]

Most important alert: when there is no data since xxx hours/days/...

[saroele]

to send an image without fysically writing a file to disk, this is probably a good start: http://stackoverflow.com/questions/28102803/python-pil-image-how-to-save-image-to-a-buffer-so-can-be-used-later

[JrtPec]

I would use BytesIO instead of StringIO though, something like this:

from io import BytesIO
import requests

image_buffer = BytesIO()
plt.save_image(..., file=image_buffer)  # or whatever you do to save a plot to file

files = {'file': image_buffer.getvalue()}
r = request.post(url, files=files)