This commit adds support for declaring variable types in Terraform
configuration. Historically, the type has been inferred from the default
value, defaulting to string if no default was supplied. This has caused
users to devise workarounds if they wanted to declare a map but provide
values from a .tfvars file (for example).
The new syntax adds the "type" key to variable blocks:
```
variable "i_am_a_string" {
type = "string"
}
variable "i_am_a_map" {
type = "map"
}
```
This commit does _not_ extend the type system to include bools, integers
or floats - the only two types available are maps and strings.
Validation is performed if a default value is provided in order to
ensure that the default value type matches the declared type.
In the case that a type is not declared, the old logic is used for
determining the type. This allows backwards compatiblity with previous
Terraform configuration.
Adds the `TF_SKIP_REMOTE_TESTS` env var to be used in cases where the
`http.Get()` smoke test passes but the network is not able to service
the needs of the tests.
Fixes#4421
This means that terraform commands like `plan`, `apply`, `show`, and
`graph` will expand all modules by default.
While modules-as-black-boxes is still very true in the conceptual design
of modules, feedback on this behavior has consistently suggested that
users would prefer to see more verbose output by default.
The `-module-depth` flag and env var are retained to allow output to be
optionally limited / summarized by these commands.
In most cases private keys are used to produce certs and cert requests,
but there are some less-common cases where the PEM-formatted keypair is
used alone. The public_key_pem attribute supports such cases.
This also includes a public_key_openssh attribute, which allows this
resource to be used to generate temporary OpenSSH credentials, so that
e.g. a Terraform configuration could generate its own keypair to use
with the aws_key_pair resource. This has the same caveats as all cases
where we generate private keys in Terraform, but could be useful for
temporary/throwaway environments where the state either doesn't live for
long or is stored securely.
This builds on work started by Simarpreet Singh in #4441 .
James Nugent