Add the GCP provider: four-call surface, fire-and-forget ops, zone-qualified IDs

Co-Authored-By: Claude <noreply@anthropic.com>

internal/provider/gcp/insert_test.go

@@ -0,0 +1,127 @@
+package gcp
+
+import (
+	"testing"
+
+	"gitea.home.hrajfrisbee.cz/kacerr/egress-proxies-operator/internal/provider"
+)
+
+func testCreateRequest() provider.CreateRequest {
+	return provider.CreateRequest{
+		Name:      "proxy-abc123def456ghij",
+		UID:       "11111111-2222-3333-4444-555555555555",
+		Namespace: "default",
+		ProxyName: "eu-proxy-1",
+		Placement: provider.Placement{
+			Zone:        "europe-west1-b",
+			MachineType: "e2-micro",
+			Image:       "projects/debian-cloud/global/images/family/debian-12",
+		},
+		CloudInit: "#cloud-config\npackages: [squid]",
+		Port:      3128,
+	}
+}
+
+func TestBuildInsertRequest_fieldByField(t *testing.T) {
+	t.Parallel()
+	cfg := withDefaults(provider.GCPConfig{Project: "my-project"})
+	req := buildInsertRequest(cfg, testCreateRequest())
+
+	if req.Project != "my-project" || req.Zone != "europe-west1-b" {
+		t.Errorf("project/zone = %s/%s, want my-project/europe-west1-b", req.Project, req.Zone)
+	}
+	inst := req.InstanceResource
+	if inst.GetName() != "proxy-abc123def456ghij" {
+		t.Errorf("name = %s", inst.GetName())
+	}
+	if got, want := inst.GetMachineType(), "zones/europe-west1-b/machineTypes/e2-micro"; got != want {
+		t.Errorf("machineType = %s, want %s", got, want)
+	}
+
+	if len(inst.GetDisks()) != 1 {
+		t.Fatalf("disks = %d, want 1", len(inst.GetDisks()))
+	}
+	disk := inst.GetDisks()[0]
+	if !disk.GetBoot() || !disk.GetAutoDelete() {
+		t.Errorf("boot/autoDelete = %v/%v, want true/true", disk.GetBoot(), disk.GetAutoDelete())
+	}
+	if got, want := disk.GetInitializeParams().GetSourceImage(), "projects/debian-cloud/global/images/family/debian-12"; got != want {
+		t.Errorf("sourceImage = %s, want %s", got, want)
+	}
+	if disk.GetInitializeParams().GetDiskSizeGb() != 10 {
+		t.Errorf("diskSizeGb = %d, want the 10 default", disk.GetInitializeParams().GetDiskSizeGb())
+	}
+
+	if len(inst.GetNetworkInterfaces()) != 1 {
+		t.Fatalf("networkInterfaces = %d, want 1", len(inst.GetNetworkInterfaces()))
+	}
+	nic := inst.GetNetworkInterfaces()[0]
+	if got, want := nic.GetNetwork(), "global/networks/default"; got != want {
+		t.Errorf("network = %s, want %s", got, want)
+	}
+	if len(nic.GetAccessConfigs()) != 1 {
+		t.Fatalf("accessConfigs = %d, want 1", len(nic.GetAccessConfigs()))
+	}
+	ac := nic.GetAccessConfigs()[0]
+	if ac.GetName() != "External NAT" || ac.GetType() != "ONE_TO_ONE_NAT" {
+		t.Errorf("accessConfig = %s/%s, want External NAT/ONE_TO_ONE_NAT", ac.GetName(), ac.GetType())
+	}
+
+	wantLabels := map[string]string{
+		provider.LabelManaged: provider.LabelManagedYes,
+		provider.LabelUID:     "11111111-2222-3333-4444-555555555555",
+	}
+	labels := inst.GetLabels()
+	if len(labels) != len(wantLabels) {
+		t.Errorf("labels = %v, want %v", labels, wantLabels)
+	}
+	for k, v := range wantLabels {
+		if labels[k] != v {
+			t.Errorf("label %s = %q, want %q", k, labels[k], v)
+		}
+	}
+
+	if tags := inst.GetTags().GetItems(); len(tags) != 1 || tags[0] != "proxy-operator" {
+		t.Errorf("tags = %v, want [proxy-operator]", tags)
+	}
+
+	items := inst.GetMetadata().GetItems()
+	if len(items) != 1 || items[0].GetKey() != "user-data" {
+		t.Fatalf("metadata items = %v, want one user-data entry", items)
+	}
+	if items[0].GetValue() != "#cloud-config\npackages: [squid]" {
+		t.Errorf("user-data = %q, want the resolved cloud-init", items[0].GetValue())
+	}
+}
+
+func TestBuildInsertRequest_configOverrides(t *testing.T) {
+	t.Parallel()
+	cfg := withDefaults(provider.GCPConfig{
+		Project:    "my-project",
+		Network:    "crawl-vpc",
+		NetworkTag: "crawl-egress",
+		DiskSizeGB: 42,
+	})
+	req := buildInsertRequest(cfg, testCreateRequest())
+	inst := req.InstanceResource
+
+	if got, want := inst.GetNetworkInterfaces()[0].GetNetwork(), "global/networks/crawl-vpc"; got != want {
+		t.Errorf("network = %s, want %s", got, want)
+	}
+	if tags := inst.GetTags().GetItems(); len(tags) != 1 || tags[0] != "crawl-egress" {
+		t.Errorf("tags = %v, want [crawl-egress]", tags)
+	}
+	if got := inst.GetDisks()[0].GetInitializeParams().GetDiskSizeGb(); got != 42 {
+		t.Errorf("diskSizeGb = %d, want 42", got)
+	}
+}
+
+func TestBuildInsertRequest_noCloudInitMeansNoMetadata(t *testing.T) {
+	t.Parallel()
+	req := testCreateRequest()
+	req.CloudInit = ""
+	built := buildInsertRequest(withDefaults(provider.GCPConfig{Project: "p"}), req)
+	if built.InstanceResource.GetMetadata() != nil {
+		t.Errorf("metadata = %v, want none without cloud-init", built.InstanceResource.GetMetadata())
+	}
+}