feat: implement function and http trigger resources via CRD
This commit is contained in:
Naeel
@@ -2,34 +2,234 @@ package resources
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import (
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"context"
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"fmt"
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"github.com/hashicorp/terraform-plugin-framework/resource"
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"github.com/hashicorp/terraform-plugin-framework/resource/schema"
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"github.com/hashicorp/terraform-plugin-framework/types"
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"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
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"terraform-provider-fission/internal/client"
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)
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var _ resource.Resource = &FunctionResource{}
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type FunctionResource struct{}
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// Изменено: 2026-04-14 20:00 UTC.
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// Resource для управления Fission Function через Kubernetes CRD API.
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type FunctionResource struct {
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client *client.Client
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}
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// functionResourceModel описывает состояние terraform ресурса fission_function.
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type functionResourceModel struct {
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ID types.String `tfsdk:"id"`
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Name types.String `tfsdk:"name"`
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Environment types.String `tfsdk:"environment"`
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PackageName types.String `tfsdk:"package_name"`
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Entrypoint types.String `tfsdk:"entrypoint"`
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Namespace types.String `tfsdk:"namespace"`
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UID types.String `tfsdk:"uid"`
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}
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// NewFunctionResource создает инстанс ресурса функции.
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func NewFunctionResource() resource.Resource {
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return &FunctionResource{}
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}
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// Metadata задает имя ресурса fission_function.
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func (r *FunctionResource) Metadata(_ context.Context, req resource.MetadataRequest, resp *resource.MetadataResponse) {
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resp.TypeName = req.ProviderTypeName + "_function"
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}
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// Schema задает Terraform schema для Function.
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func (r *FunctionResource) Schema(_ context.Context, _ resource.SchemaRequest, resp *resource.SchemaResponse) {
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resp.Schema = schema.Schema{}
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resp.Schema = schema.Schema{
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Attributes: map[string]schema.Attribute{
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"id": schema.StringAttribute{
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Computed: true,
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Description: "Идентификатор ресурса (namespace/name).",
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},
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"name": schema.StringAttribute{
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Required: true,
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Description: "Имя Fission Function.",
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},
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"environment": schema.StringAttribute{
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Required: true,
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Description: "Имя Environment, в котором выполняется функция.",
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},
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"package_name": schema.StringAttribute{
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Required: true,
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Description: "Имя Fission Package с кодом функции.",
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},
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"entrypoint": schema.StringAttribute{
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Required: true,
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Description: "Имя точки входа в пакете (например main.main).",
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},
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"namespace": schema.StringAttribute{
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Optional: true,
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Computed: true,
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Description: "Namespace, где создается Function. По умолчанию используется provider namespace.",
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},
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"uid": schema.StringAttribute{
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Computed: true,
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Description: "UID Kubernetes объекта Function.",
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},
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},
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}
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}
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func (r *FunctionResource) Configure(_ context.Context, _ resource.ConfigureRequest, _ *resource.ConfigureResponse) {
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// Configure получает клиент из provider.Configure().
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func (r *FunctionResource) Configure(_ context.Context, req resource.ConfigureRequest, resp *resource.ConfigureResponse) {
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if req.ProviderData == nil {
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return
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}
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fissionClient, ok := req.ProviderData.(*client.Client)
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if !ok {
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resp.Diagnostics.AddError(
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"Некорректный тип provider data",
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fmt.Sprintf("Ожидался *client.Client, получен: %T", req.ProviderData),
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)
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return
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}
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r.client = fissionClient
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}
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func (r *FunctionResource) Create(_ context.Context, _ resource.CreateRequest, _ *resource.CreateResponse) {
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// Create создает новый Function CRD объект.
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func (r *FunctionResource) Create(ctx context.Context, req resource.CreateRequest, resp *resource.CreateResponse) {
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var plan functionResourceModel
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resp.Diagnostics.Append(req.Plan.Get(ctx, &plan)...)
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if resp.Diagnostics.HasError() {
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return
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}
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namespace := resolveNamespace(plan.Namespace, r.client.Namespace)
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functionObject := functionToUnstructured(plan, namespace)
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createdFunction, err := r.client.CreateFunction(ctx, functionObject)
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if err != nil {
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resp.Diagnostics.AddError("Ошибка создания Fission Function", err.Error())
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return
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}
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state := unstructuredToFunctionModel(createdFunction, plan)
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resp.Diagnostics.Append(resp.State.Set(ctx, &state)...)
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}
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func (r *FunctionResource) Read(_ context.Context, _ resource.ReadRequest, _ *resource.ReadResponse) {
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// Read синхронизирует Terraform state с текущим состоянием Function CRD.
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func (r *FunctionResource) Read(ctx context.Context, req resource.ReadRequest, resp *resource.ReadResponse) {
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var state functionResourceModel
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resp.Diagnostics.Append(req.State.Get(ctx, &state)...)
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if resp.Diagnostics.HasError() {
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return
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}
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namespace := resolveNamespace(state.Namespace, r.client.Namespace)
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functionObject, err := r.client.GetFunction(ctx, namespace, state.Name.ValueString())
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if err != nil {
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if client.IsNotFound(err) {
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resp.State.RemoveResource(ctx)
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return
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}
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resp.Diagnostics.AddError("Ошибка чтения Fission Function", err.Error())
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return
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}
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updatedState := unstructuredToFunctionModel(functionObject, state)
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resp.Diagnostics.Append(resp.State.Set(ctx, &updatedState)...)
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}
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func (r *FunctionResource) Update(_ context.Context, _ resource.UpdateRequest, _ *resource.UpdateResponse) {
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// Update обновляет существующий Function CRD объект.
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func (r *FunctionResource) Update(ctx context.Context, req resource.UpdateRequest, resp *resource.UpdateResponse) {
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var plan functionResourceModel
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resp.Diagnostics.Append(req.Plan.Get(ctx, &plan)...)
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if resp.Diagnostics.HasError() {
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return
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}
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namespace := resolveNamespace(plan.Namespace, r.client.Namespace)
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existingFunction, err := r.client.GetFunction(ctx, namespace, plan.Name.ValueString())
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if err != nil {
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resp.Diagnostics.AddError("Ошибка получения Function перед обновлением", err.Error())
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return
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}
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functionObject := functionToUnstructured(plan, namespace)
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functionObject.SetResourceVersion(existingFunction.GetResourceVersion())
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updatedFunction, err := r.client.UpdateFunction(ctx, functionObject)
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if err != nil {
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resp.Diagnostics.AddError("Ошибка обновления Fission Function", err.Error())
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return
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}
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state := unstructuredToFunctionModel(updatedFunction, plan)
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resp.Diagnostics.Append(resp.State.Set(ctx, &state)...)
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}
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func (r *FunctionResource) Delete(_ context.Context, _ resource.DeleteRequest, _ *resource.DeleteResponse) {
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// Delete удаляет Function CRD объект.
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func (r *FunctionResource) Delete(ctx context.Context, req resource.DeleteRequest, resp *resource.DeleteResponse) {
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var state functionResourceModel
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resp.Diagnostics.Append(req.State.Get(ctx, &state)...)
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if resp.Diagnostics.HasError() {
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return
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}
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namespace := resolveNamespace(state.Namespace, r.client.Namespace)
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err := r.client.DeleteFunction(ctx, namespace, state.Name.ValueString())
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if err != nil && !client.IsNotFound(err) {
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resp.Diagnostics.AddError("Ошибка удаления Fission Function", err.Error())
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}
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}
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// functionToUnstructured преобразует Terraform model в Kubernetes CRD payload.
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func functionToUnstructured(model functionResourceModel, namespace string) *unstructured.Unstructured {
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return &unstructured.Unstructured{Object: map[string]interface{}{
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"apiVersion": "fission.io/v1",
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"kind": "Function",
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"metadata": map[string]interface{}{
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"name": model.Name.ValueString(),
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"namespace": namespace,
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},
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"spec": map[string]interface{}{
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"environment": map[string]interface{}{
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"name": model.Environment.ValueString(),
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"namespace": namespace,
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},
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"package": map[string]interface{}{
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"packageref": map[string]interface{}{
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"name": model.PackageName.ValueString(),
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"namespace": namespace,
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},
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"functionName": model.Entrypoint.ValueString(),
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},
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},
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}}
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}
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// unstructuredToFunctionModel читает нужные поля из CRD объекта обратно в Terraform state.
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func unstructuredToFunctionModel(functionObject *unstructured.Unstructured, base functionResourceModel) functionResourceModel {
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environmentName, _, _ := unstructured.NestedString(functionObject.Object, "spec", "environment", "name")
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packageName, _, _ := unstructured.NestedString(functionObject.Object, "spec", "package", "packageref", "name")
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entrypoint, _, _ := unstructured.NestedString(functionObject.Object, "spec", "package", "functionName")
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state := base
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state.Name = types.StringValue(functionObject.GetName())
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state.Namespace = types.StringValue(functionObject.GetNamespace())
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state.ID = types.StringValue(fmt.Sprintf("%s/%s", functionObject.GetNamespace(), functionObject.GetName()))
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state.UID = types.StringValue(string(functionObject.GetUID()))
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if environmentName != "" {
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state.Environment = types.StringValue(environmentName)
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}
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if packageName != "" {
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state.PackageName = types.StringValue(packageName)
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}
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if entrypoint != "" {
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state.Entrypoint = types.StringValue(entrypoint)
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}
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return state
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}
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