I am looking for a solution to add dynamic tags to my metrics.
e.g. the host a virtual machine is running on can change during the runtime of telegraf, but it is crucial to label the metrics of my VMs with the host the VM is running on.
I found the option of environment variables as global tags, but I think they are only read at the start of telegraf - not during the runtime.
Has anyone have an idea or a similar usecase ?