I have in my database a list of hosts
I set a variable $NodeId that allows me to select one or more hosts
A priori, it is possible to group multiple hosts with a tag
But I can not find the syntax for multiple tags
With the function : variable/tags query
Ex:
Site1: equip101, equip102, equip103
Site 2: equip201, equip202, equip203
I want 2 tags : Site1 et Site 2
For example,
When I click on Site1 the hosts equip101 and equip102 are selected
When I click on Site2 the hosts equip201 and equip202 are selected
What you need to do is tag it that way coming into InfluxDB.
You should include the tag site = 1, equipment = equip101 or something like that. That will allow scaling. I don’t know if you can do good searching by a tag key. Settings it to a value will allow you to do easy filtering
@Esity is right that the only real way to make this work nicely (/in a scalable way) is to apply the site as a separate tag.
If you really need to do filtering on your existing data in Grafana, the way you describe, you can create a template variable ($filterVar) with a dropdown with some hardcoded values like (equip101|equip102|equip103) or equip10.*, equip20.*, etc, and use that variable in a query filter on your existing tag, e.g WHERE NodeID =~ /^[[filterVar]]$/. But that’s obviously pretty ugly.
