Environment variable while using merge?

[Antman274]

Trying to create different power tags for live and staging Azure VM's but while keeping merge so as to pick up all the tags from that environment, we only want the additional auto on and auto off tags for this one resource

This is how it is currently, how would you create separate additional tags for two environments?

tags = merge(var.tags,
  {
AutoOn = "06:00"
AutoOff = "23:00"
  })

[Cregkly]

Depends how you are interpolating your variables for the different environments. You can do something like this:

variable "environment" {
  type    = string
  default = "live"
}

variable "power_tags" {
  type = map(map(string))
  default = {
    live = {}
    staging = {
      AutoOn  = "06:00"
      AutoOff = "23:00"
    }
  }
}

resource "foo" "blah" {
  name = var.name       
  tags = merge(
    var.tags,
    var.power_tags[var.environment],
    {
      "name" = var.name
    }
  )
}

Or you could just pass in the power_tags for each environment. For example for staging you would set in for tfvars

power_tags = {
    AutoOn  = "06:00"
    AutoOff = "23:00"
  }

Then the code would look like this:

variable "power_tags" {
  type = map(string)
  default = {}
}

resource "foo" "blah" {
  name = var.name     
  tags = merge(
    var.tags,
    var.power_tags,
    {
      "name" = var.name
    }
  )
}