Unable to send data via http while running within a docker container

1

Hello all.

I have a python script that collects data and is able to send the data via http request to my influxdb. It works fine, UNTIL I try to run the same script within the container. I get a 204 status code, but when I try to view the data in real time (every 5 seconds via Grafana) no data shows up… but if I go back to running the python script outside of the docker container, it runs fine and I can see the data. Has anyone else had this problem? Thanks to all of those who reply in advance.

2

Can you share your Python script and the command you use to run it: both outside and inside the container

3

Here is the code:

… I run it the same outside the container and inside it. python3 nameoffile.py

import requests

class HttpProtocolHandler:

    def send(self, datapoints):
        print("DATAPOINTS:", flush=True)
        print(datapoints, flush=True)
        host = 'myhostnamehere'
        port = '8086'
        server = 'http://' + host + ':' + port + '/'
        database = 'streaming_test'
        api_add_datapoint = server + 'write?db=' + database + '&precision=ms'
        try:
            r = requests.post(api_add_datapoint, data=datapoints, auth=('user', 'password'), timeout=3)
        except requests.exceptions.ConnectionError:
            r.status_code == 'Connection Refused'
        print(r.status_code)
4

Can you provide the docker container run command, please?

Is InfluxDB on a machine, VM, or container; and is it’s hostname available on your network or only via Docker (Kubernetes/Compose?)

5

Docker command: docker run -v /dev/data-streaming/CANable:/dev/data-streaming/CANa ble --network host --privileged stream-data

InfluxDB is running on a locally hosted server of ours. The hostname is available on our network. We still get a ‘204 No content’ response in both cases… it’s just that when we run it inside the container no data is actually being sent it seems.