use Terraform CLI variables with Travis secure variables

.travis.yml

@@ -1,6 +1,6 @@
 language: c
 before_install:
-- wget https://releases.hashicorp.com/terraform/0.5.3/terraform_0.5.3_linux_amd64.zip
+- wget https://releases.hashicorp.com/terraform/0.6.15/terraform_0.6.15_linux_amd64.zip
   -O /tmp/terraform.zip
 - sudo unzip -d /usr/local/bin/ /tmp/terraform.zip
 script: make test

scripts/testPlan

@@ -29,7 +29,7 @@ OUTPUT=$(terraform get -update)
 CLEANUP "$?" "$desc" "Unable to fetch the modules we depend on"
 
 desc="Does the plan compile?"
-OUTPUT=$(terraform plan -var-file terraform.tfvars.example)
+OUTPUT=$(TF_VAR_aws_access_key=${TRAVIS_aws_access_key} TF_VAR_aws_secret_key=${TRAVIS_aws_secret_key} terraform plan -var-file terraform.tfvars.example)
 CLEANUP "$?" "$desc" "$OUTPUT"
 
 desc="Did the baseline terraform plan change?"

terraform.tfvars.example

@@ -1,5 +1,5 @@
-aws_access_key = "${AWS_ACCESS_KEY_ID}"
-aws_secret_key = "${AWS_SECRET_ACCESS_KEY}"
+aws_access_key = "XXXXXXXXXXXXXXXXXXXX"
+aws_secret_key = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
 aws_key_path = "~/.ssh/bosh.pem"
 aws_key_name = "bosh"
 aws_region = "us-east-1"