Terraform Module Release: terraform-data-combine-map v0.0.1

A coworker had a challenge wanting to do a merge() on a list of maps:

list = [
  {
    keyA = {
      subkey1 = "value1"
    }
  },
  {
    keyA = {
      subkey2 = "value2"
    }
  },
  {
    keyB = {
      subkey3 = "value3"
    }
  }
]

The issue is that merge() takes a list of maps and will only keep the value of the key from the last list element that contained it. Running merge(var.list...) results in:

merged_map = {
  "keyA" = {
    "subkey2" = "value2"
  }
  "keyB" = {
    "subkey3" = "value3"
  }
}

The desire was for the result to be:

combine_map = {
  "keyA" = {
    "subkey1" = "value1"
    "subkey2" = "value2"
  }
  "keyB" = {
    "subkey3" = "value3"
  }
}

After spending some time transforming the data, the idea of a data-only module seemed useful, so I created a git repository with many of the bells and whistles and published the module: