why influxdb-relay opens TCP 8088 port?

[dpajin]

Hello,

I see that influxdb-relay uses TCP port 8088...

bash-5.0# netstat -noap | grep tcp
...
tcp6       0      0 :::9096                 :::*                    LISTEN      1/influxdb-relay     off (0.00/0/0)
tcp6       0      0 :::8088                 :::*                    LISTEN      1/influxdb-relay     off (0.00/0/0)

There is nothing in the documentation about this. It seems that it is hardcoded in the following file:
https://github.com/strike-team/influxdb-relay/blob/master/metric/metric.go.

Unfortunately, this overlaps with the port used by InfluxDB (https://docs.influxdata.com/influxdb/v1.7/administration/ports/), so if you want to run it on the same node, or Docker containers running on the host network, they overlap and only one service can run.

Can we somehow disable this service, or make this port configurable?

[damoun]

Hello,

It's an http endpoint to expose metrics for prometheus. It was introduced by #40.

[dpajin]

Thanks for clarification.