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docs: Clarify terraform.tfvars file additions

This commit is contained in:
James Nugent 2016-10-17 11:39:12 -05:00
parent 0f52c29857
commit d12b637602
1 changed files with 11 additions and 10 deletions
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21
website/source/docs/configuration/variables.html.md
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@ -197,13 +197,14 @@ $ TF_VAR_somemap='{foo = "bar", baz = "qux"}' terraform plan
Variables can be collected in files and passed all at once using the
`-var-file=foo.tfvars` flag.
If a "terraform.tfvars" file is present in the current directory, Terraform
automatically loads it to populate variables. If the file is named something
else, you can use the -var-file flag directly to specify a file. These files
are the same syntax as Terraform configuration files. And like Terraform
configuration files, these files can also be JSON. The format for variables in
`.tfvars` files is [HCL](/docs/configuration/syntax.html#HCL), with top level
key/value pairs:
If a file named `terraform.tfvars` is present in the current directory,
Terraform automatically loads it to populate variables. If the file is named
something else, you can pass the path to the file using the the `-var-file`
flag.
Variables files use HCL or JSON to define variable values. Strings, lists or
maps may be set in the same manner as the default value in a `variable` block
in Terraform configuration. For example:
```
foo = "bar"
@ -224,9 +225,9 @@ The flag can be used multiple times per command invocation:
terraform apply -var-file=foo.tfvars -var-file=bar.tfvars
```
**Note** If a variable is defined in more than one file passed, the last
variable file (reading left to right) will be the definition used. Put more
simply, the last time a variable is defined is the one which will be used.
**Note** Variable files are evaluated in the order in which they are specified
on the command line. If a variable is defined in more than one variables file,
the last value specified is effective.
### Precedence example: