Terragrunt validate-all as part of your CI process

With the merging of #761 it is now possible to run validate-all with Terragrunt as part of your CI process without having to initialize the backend.

You can do this by setting the remote_state.disable_init configuration option. The easiest way to manage this is to use an environment variable that you set as part of your CI process to disable initialization:

remote_state {
  disable_init = tobool(get_env("DISABLE_INIT", "false"))
}

Now when executing validate-all as part of your CI process with DISABLE_INIT=true Terragrunt will no longer attempt to initialize the backend before running Terraform validate.