Docker input plugin imagename/version split does not work if private registry with port in url is used

[erSitzt]

Bug report

The docker input plugin splits the image name and image version at the colon.

python:3

results in

container_image: python
container_version: 3

but the image name may contain a private registry url which contains a port, also with a colon for separation.

eg.

registry.domain.com:5000/monitoring/cadvisor:internal.0.23

This results in

container_image: registry.domain.com:
container_version: 5000/monitoring/cadvisor

System info:

Telegraf Docker image telegraf:alpine

[alex-sherwin]

+1

[sachagear]

+1

[deric]

+1

[sparrc]

this is already slated for a release and there is a PR up to fix it, there's no need to "+1", thanks