feat(iaas): add experimental support for routing tables and routes (#896)

* Merged PR 788126: feat(iaas): Onboard routing tables

feat(iaas): Onboard routing tables

Signed-off-by: Alexander Dahmen <alexander.dahmen@inovex.de>

* Merged PR 793350: fix(routingtable): region attribute is missing in scheme

fix(routingtable): region attribute is missing in scheme

Signed-off-by: Alexander Dahmen <alexander.dahmen@inovex.de>

* Merged PR 797968: feat(iaas): onboarding of routing table routes

relates to STACKITTPR-241

* use iaasalpha sdk from github

* resolve todos

* remove routes from routing table model

* restructure packages

* acc tests routing tables

* add acc tests for routes

* chore(iaas): mark routing table resources as experimental

* chore(deps): use iaasalpha sdk v0.1.19-alpha

* Review feedback

Signed-off-by: Alexander Dahmen <alexander.dahmen@inovex.de>

---------

Signed-off-by: Alexander Dahmen <alexander.dahmen@inovex.de>
Co-authored-by: Alexander Dahmen (EXT) <Alexander.Dahmen_ext@external.mail.schwarz>
Co-authored-by: Alexander Dahmen <alexander.dahmen@inovex.de>

stackit/internal/services/iaasalpha/routingtable/route/datasource.go

@@ -0,0 +1,120 @@
+package route
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+
+	shared "github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/iaasalpha/routingtable/shared"
+
+	"github.com/hashicorp/terraform-plugin-framework/datasource"
+	"github.com/hashicorp/terraform-plugin-framework/datasource/schema"
+	"github.com/hashicorp/terraform-plugin-log/tflog"
+	"github.com/stackitcloud/stackit-sdk-go/services/iaasalpha"
+	"github.com/stackitcloud/terraform-provider-stackit/stackit/internal/conversion"
+	"github.com/stackitcloud/terraform-provider-stackit/stackit/internal/core"
+	"github.com/stackitcloud/terraform-provider-stackit/stackit/internal/features"
+	iaasalphaUtils "github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/iaasalpha/utils"
+	"github.com/stackitcloud/terraform-provider-stackit/stackit/internal/utils"
+)
+
+// Ensure the implementation satisfies the expected interfaces.
+var (
+	_ datasource.DataSource = &routingTableRouteDataSource{}
+)
+
+// NewRoutingTableRouteDataSource is a helper function to simplify the provider implementation.
+func NewRoutingTableRouteDataSource() datasource.DataSource {
+	return &routingTableRouteDataSource{}
+}
+
+// routingTableRouteDataSource is the data source implementation.
+type routingTableRouteDataSource struct {
+	client       *iaasalpha.APIClient
+	providerData core.ProviderData
+}
+
+// Metadata returns the data source type name.
+func (d *routingTableRouteDataSource) Metadata(_ context.Context, req datasource.MetadataRequest, resp *datasource.MetadataResponse) {
+	resp.TypeName = req.ProviderTypeName + "_routing_table_route"
+}
+
+func (d *routingTableRouteDataSource) Configure(ctx context.Context, req datasource.ConfigureRequest, resp *datasource.ConfigureResponse) {
+	var ok bool
+	d.providerData, ok = conversion.ParseProviderData(ctx, req.ProviderData, &resp.Diagnostics)
+	if !ok {
+		return
+	}
+
+	features.CheckExperimentEnabled(ctx, &d.providerData, features.RoutingTablesExperiment, "stackit_routing_table_route", core.Datasource, &resp.Diagnostics)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	apiClient := iaasalphaUtils.ConfigureClient(ctx, &d.providerData, &resp.Diagnostics)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+	d.client = apiClient
+	tflog.Info(ctx, "IaaS client configured")
+}
+
+// Schema defines the schema for the data source.
+func (d *routingTableRouteDataSource) Schema(_ context.Context, _ datasource.SchemaRequest, resp *datasource.SchemaResponse) {
+	description := "Routing table route datasource schema. Must have a `region` specified in the provider configuration."
+	resp.Schema = schema.Schema{
+		Description:         description,
+		MarkdownDescription: features.AddExperimentDescription(description, features.RoutingTablesExperiment, core.Datasource),
+		Attributes:          shared.GetRouteDataSourceAttributes(),
+	}
+}
+
+// Read refreshes the Terraform state with the latest data.
+func (d *routingTableRouteDataSource) Read(ctx context.Context, req datasource.ReadRequest, resp *datasource.ReadResponse) { // nolint:gocritic // function signature required by Terraform
+	var model shared.RouteModel
+	diags := req.Config.Get(ctx, &model)
+	resp.Diagnostics.Append(diags...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	organizationId := model.OrganizationId.ValueString()
+	region := d.providerData.GetRegionWithOverride(model.Region)
+	routingTableId := model.RoutingTableId.ValueString()
+	networkAreaId := model.NetworkAreaId.ValueString()
+	routeId := model.RouteId.ValueString()
+	ctx = tflog.SetField(ctx, "organization_id", organizationId)
+	ctx = tflog.SetField(ctx, "region", region)
+	ctx = tflog.SetField(ctx, "routing_table_id", routingTableId)
+	ctx = tflog.SetField(ctx, "network_area_id", networkAreaId)
+	ctx = tflog.SetField(ctx, "route_id", routeId)
+
+	routeResp, err := d.client.GetRouteOfRoutingTable(ctx, organizationId, networkAreaId, region, routingTableId, routeId).Execute()
+	if err != nil {
+		core.LogAndAddError(ctx, &resp.Diagnostics, err.Error(), err.Error())
+		utils.LogError(
+			ctx,
+			&resp.Diagnostics,
+			err,
+			"Reading routing table route",
+			fmt.Sprintf("Routing table route with ID %q, routing table with ID %q or network area with ID %q does not exist in organization %q.", routeId, routingTableId, networkAreaId, organizationId),
+			map[int]string{
+				http.StatusForbidden: fmt.Sprintf("Organization with ID %q not found or forbidden access", organizationId),
+			},
+		)
+		resp.State.RemoveResource(ctx)
+		return
+	}
+
+	err = shared.MapRouteModel(ctx, routeResp, &model, region)
+	if err != nil {
+		core.LogAndAddError(ctx, &resp.Diagnostics, "Error reading routing table route", fmt.Sprintf("Processing API payload: %v", err))
+		return
+	}
+	diags = resp.State.Set(ctx, model)
+	resp.Diagnostics.Append(diags...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+	tflog.Info(ctx, "Routing table route read")
+}