tc000010_no_outputs_test.go

package controllers

import (
	"context"
	"fmt"
	"os"
	"testing"
	"time"

	. "github.com/onsi/gomega"

	infrav1 "github.com/flux-iac/tofu-controller/api/v1alpha2"
	sourcev1 "github.com/fluxcd/source-controller/api/v1"
	corev1 "k8s.io/api/core/v1"
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	"k8s.io/apimachinery/pkg/types"
)

// +kubebuilder:docs-gen:collapse=Imports

func Test_000010_no_outputs_test(t *testing.T) {
	Spec("This spec describes the behaviour of a Terraform resource with no backend, and `auto` approve.")
	It("should be reconciled to have available outputs.")

	const (
		sourceName    = "test-tf-controller-no-output"
		terraformName = "helloworld-no-outputs"
	)
	g := NewWithT(t)
	ctx := context.Background()

	Given("a GitRepository")
	By("defining a new GitRepository resource.")
	testRepo := sourcev1.GitRepository{
		ObjectMeta: metav1.ObjectMeta{
			Name:      sourceName,
			Namespace: "flux-system",
		},
		Spec: sourcev1.GitRepositorySpec{
			URL: "https://github.com/openshift-fluxv2-poc/podinfo",
			Reference: &sourcev1.GitRepositoryRef{
				Branch: "master",
			},
			Interval: metav1.Duration{Duration: time.Second * 30},
		},
	}

	By("creating the GitRepository resource in the cluster.")
	It("should be created successfully.")
	g.Expect(k8sClient.Create(ctx, &testRepo)).Should(Succeed())
	defer waitResourceToBeDelete(g, &testRepo)

	Given("the GitRepository's reconciled status.")
	By("setting the GitRepository's status, with the downloadable BLOB's URL, and the correct checksum.")
	updatedTime := time.Now()
	testRepo.Status = sourcev1.GitRepositoryStatus{
		ObservedGeneration: int64(1),
		Conditions: []metav1.Condition{
			{
				Type:               "Ready",
				Status:             metav1.ConditionTrue,
				LastTransitionTime: metav1.Time{Time: updatedTime},
				Reason:             "GitOperationSucceed",
				Message:            "Fetched revision: master/b8e362c206e3d0cbb7ed22ced771a0056455a2fb",
			},
		},
		Artifact: &sourcev1.Artifact{
			Path:           "gitrepository/flux-system/test-tf-controller/b8e362c206e3d0cbb7ed22ced771a0056455a2fb.tar.gz",
			URL:            server.URL() + "/file.tar.gz",
			Revision:       "master/b8e362c206e3d0cbb7ed22ced771a0056455a2fb",
			Digest:         "sha256:80ddfd18eb96f7d31cadc1a8a5171c6e2d95df3f6c23b0ed9cd8dddf6dba1406", // must be the real checksum value
			LastUpdateTime: metav1.Time{Time: updatedTime},
		},
	}

	It("should be updated successfully.")
	g.Expect(k8sClient.Status().Update(ctx, &testRepo)).Should(Succeed())

	Given("a Terraform resource with auto approve, attached to the given GitRepository resource.")
	By("creating a new TF resource and attaching to the repo via `sourceRef`.")
	var helloWorldTF infrav1.Terraform
	err := helloWorldTF.FromBytes([]byte(fmt.Sprintf(`
apiVersion: infra.contrib.fluxcd.io/v1alpha2
kind: Terraform
metadata:
  name: %s
  namespace: flux-system
spec:
  approvePlan: auto
  path: ./terraform-hello-world-example
  sourceRef:
    kind: GitRepository
    name: %s
    namespace: flux-system
  interval: 10s
`, terraformName, sourceName)), runnerServer.Scheme)
	g.Expect(err).ToNot(HaveOccurred())

	It("should be created and attached successfully.")
	g.Expect(k8sClient.Create(ctx, &helloWorldTF)).Should(Succeed())
	defer waitResourceToBeDelete(g, &helloWorldTF)

	By("checking that the TF resource existed inside the cluster.")
	helloWorldTFKey := types.NamespacedName{Namespace: "flux-system", Name: terraformName}
	createdHelloWorldTF := infrav1.Terraform{}
	g.Eventually(func() bool {
		err := k8sClient.Get(ctx, helloWorldTFKey, &createdHelloWorldTF)
		if err != nil {
			return false
		}
		return true
	}, timeout, interval).Should(BeTrue())

	It("should be reconciled and contain some status conditions.")
	By("checking that the TF resource's status conditions has some elements.")
	g.Eventually(func() int {
		err := k8sClient.Get(ctx, helloWorldTFKey, &createdHelloWorldTF)
		if err != nil {
			return -1
		}
		return len(createdHelloWorldTF.Status.Conditions)
	}, timeout, interval).ShouldNot(BeZero())

	It("should be planned.")
	By("checking that the Plan's reason of the TF resource become `TerraformPlannedWithChanges`.")
	g.Eventually(func() interface{} {
		err := k8sClient.Get(ctx, helloWorldTFKey, &createdHelloWorldTF)
		if err != nil {
			return nil
		}
		for _, c := range createdHelloWorldTF.Status.Conditions {
			if c.Type == "Plan" {
				return map[string]interface{}{
					"Type":    c.Type,
					"Reason":  c.Reason,
					"Message": c.Message,
				}
			}
		}
		return createdHelloWorldTF.Status
	}, timeout, interval).Should(Equal(map[string]interface{}{
		"Type":    infrav1.ConditionTypePlan,
		"Reason":  infrav1.PlannedWithChangesReason,
		"Message": "Plan generated",
	}))

	It("should generate the Secret containing the plan named with branch and commit id.")
	By("checking that the Secret contains plan-master-b8e362c206e3d0cbb7ed22ced771a0056455a2fb in its labels.")
	tfplanKey := types.NamespacedName{Namespace: "flux-system", Name: "tfplan-default-" + terraformName}
	tfplanSecret := corev1.Secret{}
	g.Eventually(func() map[string]interface{} {
		err := k8sClient.Get(ctx, tfplanKey, &tfplanSecret)
		if err != nil {
			return nil
		}
		return map[string]interface{}{
			"SavedPlan":             tfplanSecret.Annotations["savedPlan"],
			"Is TFPlan empty ?":     string(tfplanSecret.Data["tfplan"]) == "",
			"HasEncodingAnnotation": tfplanSecret.Annotations["encoding"] == "gzip",
		}
	}, timeout, interval).Should(Equal(map[string]interface{}{
		"SavedPlan":             "plan-master-b8e362c206",
		"Is TFPlan empty ?":     false,
		"HasEncodingAnnotation": true,
	}))

	It("should contain an Apply condition saying that the plan were apply successfully.")
	By("checking that the reason of the Apply condition is TerraformAppliedSucceed, and the LastAppliedPlan is the plan.")
	g.Eventually(func() map[string]interface{} {
		err := k8sClient.Get(ctx, helloWorldTFKey, &createdHelloWorldTF)
		if err != nil {
			return nil
		}
		for _, c := range createdHelloWorldTF.Status.Conditions {
			if c.Type == "Apply" {
				return map[string]interface{}{
					"Type":            c.Type,
					"Reason":          c.Reason,
					"Message":         c.Message,
					"LastAppliedPlan": createdHelloWorldTF.Status.Plan.LastApplied,
				}
			}
		}
		return nil
	}, timeout, interval).Should(Equal(map[string]interface{}{
		"Type":            infrav1.ConditionTypeApply,
		"Reason":          infrav1.TFExecApplySucceedReason,
		"Message":         "Applied successfully",
		"LastAppliedPlan": "plan-master-b8e362c206",
	}))

	It("should have an available output.")
	By("checking that the Terraform resource's .status.availableOutputs contains hello_world as an output name.")
	g.Eventually(func() []string {
		err := k8sClient.Get(ctx, helloWorldTFKey, &createdHelloWorldTF)
		if err != nil {
			return nil
		}
		return createdHelloWorldTF.Status.AvailableOutputs
	}, timeout, interval).Should(Equal([]string{"hello_world"}))

	if os.Getenv("DISABLE_TF_K8S_BACKEND") == "1" {
		It("should not produce a Secret because the controller runs locally, outside Kubernetes.")
		By("checking there are no secret generated by default.")
		tfStateKey := types.NamespacedName{Namespace: "flux-system", Name: "tfstate-default-" + terraformName}
		tfStateSecret := corev1.Secret{}
		g.Eventually(func() string {
			err := k8sClient.Get(ctx, tfStateKey, &tfStateSecret)
			if err != nil {
				return err.Error()
			}
			return tfStateSecret.Name
		}, timeout, interval).Should(Equal(fmt.Sprintf("secrets \"tfstate-default-%s\" not found", terraformName)))
	} else {
		// TODO there's must be the default tfstate secret
	}
}