test-provider

Test local changes to the terraform-provider-ko against a real registry.

Prerequisites

The test uses ttl.sh, a free ephemeral container registry that requires no authentication. Images pushed there expire automatically.

Steps

1. Build the provider and install to local mirror:

``bash go build -o ~/.terraform.d/plugins/registry.terraform.io/ko-build/ko/0.0.100/darwin_arm64/terraform-provider-ko . ``

1. Create a temporary test directory with a minimal Terraform config:

```bash TESTDIR=$(mktemp -d) cat > "$TESTDIR/main.tf" << 'EOF' terraform { required_providers { ko = { source = "ko-build/ko" version = "0.0.100" } } }

provider "ko" { repo = "ttl.sh/terraform-provider-ko-test" }

resource "ko_build" "test" { importpath = "github.com/google/ko" }

output "imageref" { value = kobuild.test.imageref } EOF echo "Test directory: $TESTDIR" ```

1. Initialise Terraform:

``bash cd "$TEST_DIR" && rm -f .terraform.lock.hcl && terraform init ``

1. Run terraform plan:

``bash cd "$TEST_DIR" && terraform plan -out tf.out ``

1. If the plan looks good, apply it:

``bash cd "$TEST_DIR" && terraform apply tf.out ``

1. Verify the image was pushed by checking the output shows a valid image reference.

1. Clean up (removes test directory and provider from local mirror):

``bash rm -rf "$TESTDIR" rm -f ~/.terraform.d/plugins/registry.terraform.io/ko-build/ko/0.0.100/darwinarm64/terraform-provider-ko ``

Debugging

To see detailed provider logs, set TF_LOG=TRACE:

cd "$TEST_DIR" && TF_LOG=TRACE terraform apply -auto-approve 2>&1 | tee /tmp/ko-provider-test.log

Then examine the logs:

less /tmp/ko-provider-test.log