feat(ske): set custom user-agent header for STACKIT API calls (#829)

relates to STACKITTPR-184

stackit/internal/services/ske/cluster/datasource.go

@@ -5,12 +5,14 @@ import (
 	"fmt"
 	"net/http"
 
+	"github.com/stackitcloud/terraform-provider-stackit/stackit/internal/conversion"
+	skeUtils "github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/ske/utils"
+
 	"github.com/hashicorp/terraform-plugin-framework/datasource"
 	"github.com/hashicorp/terraform-plugin-framework/datasource/schema"
 	"github.com/hashicorp/terraform-plugin-framework/schema/validator"
 	"github.com/hashicorp/terraform-plugin-framework/types"
 	"github.com/hashicorp/terraform-plugin-log/tflog"
-	"github.com/stackitcloud/stackit-sdk-go/core/config"
 	"github.com/stackitcloud/stackit-sdk-go/services/ske"
 	"github.com/stackitcloud/terraform-provider-stackit/stackit/internal/core"
 	"github.com/stackitcloud/terraform-provider-stackit/stackit/internal/utils"
@@ -40,37 +42,16 @@ func (r *clusterDataSource) Metadata(_ context.Context, req datasource.MetadataR
 
 // Configure adds the provider configured client to the data source.
 func (r *clusterDataSource) Configure(ctx context.Context, req datasource.ConfigureRequest, resp *datasource.ConfigureResponse) {
-	// Prevent panic if the provider has not been configured.
-	if req.ProviderData == nil {
-		return
-	}
-
 	var ok bool
-	r.providerData, ok = req.ProviderData.(core.ProviderData)
+	r.providerData, ok = conversion.ParseProviderData(ctx, req.ProviderData, &resp.Diagnostics)
 	if !ok {
-		core.LogAndAddError(ctx, &resp.Diagnostics, "Error configuring API client", fmt.Sprintf("Expected configure type stackit.ProviderData, got %T", req.ProviderData))
 		return
 	}
 
-	var apiClient *ske.APIClient
+	apiClient := skeUtils.ConfigureClient(ctx, &r.providerData, &resp.Diagnostics)
-	var err error
+	if resp.Diagnostics.HasError() {
-	if r.providerData.SKECustomEndpoint != "" {
-		apiClient, err = ske.NewAPIClient(
-			config.WithCustomAuth(r.providerData.RoundTripper),
-			config.WithEndpoint(r.providerData.SKECustomEndpoint),
-		)
-	} else {
-		apiClient, err = ske.NewAPIClient(
-			config.WithCustomAuth(r.providerData.RoundTripper),
-			config.WithRegion(r.providerData.GetRegion()),
-		)
-	}
-
-	if err != nil {
-		core.LogAndAddError(ctx, &resp.Diagnostics, "Error configuring API client", fmt.Sprintf("Configuring client: %v. This is an error related to the provider configuration, not to the data source configuration", err))
 		return
 	}
-
 	r.client = apiClient
 	tflog.Info(ctx, "SKE client configured")
 }

stackit/internal/services/ske/cluster/resource.go

@@ -9,6 +9,9 @@ import (
 	"strings"
 	"time"
 
+	serviceenablementUtils "github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/serviceenablement/utils"
+	skeUtils "github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/ske/utils"
+
 	"github.com/hashicorp/terraform-plugin-framework-validators/resourcevalidator"
 	"github.com/hashicorp/terraform-plugin-framework-validators/stringvalidator"
 	"github.com/hashicorp/terraform-plugin-framework/attr"
@@ -29,7 +32,6 @@ import (
 	"github.com/hashicorp/terraform-plugin-framework/types"
 	"github.com/hashicorp/terraform-plugin-framework/types/basetypes"
 	"github.com/hashicorp/terraform-plugin-log/tflog"
-	"github.com/stackitcloud/stackit-sdk-go/core/config"
 	"github.com/stackitcloud/stackit-sdk-go/core/oapierror"
 	sdkUtils "github.com/stackitcloud/stackit-sdk-go/core/utils"
 	"github.com/stackitcloud/stackit-sdk-go/services/serviceenablement"
@@ -279,57 +281,22 @@ func (r *clusterResource) Metadata(_ context.Context, req resource.MetadataReque
 
 // Configure adds the provider configured client to the resource.
 func (r *clusterResource) Configure(ctx context.Context, req resource.ConfigureRequest, resp *resource.ConfigureResponse) {
-	// Prevent panic if the provider has not been configured.
-	if req.ProviderData == nil {
-		return
-	}
-
 	var ok bool
-	r.providerData, ok = req.ProviderData.(core.ProviderData)
+	r.providerData, ok = conversion.ParseProviderData(ctx, req.ProviderData, &resp.Diagnostics)
 	if !ok {
-		core.LogAndAddError(ctx, &resp.Diagnostics, "Error configuring API client", fmt.Sprintf("Expected configure type stackit.ProviderData, got %T", req.ProviderData))
 		return
 	}
 
-	var skeClient *ske.APIClient
+	skeClient := skeUtils.ConfigureClient(ctx, &r.providerData, &resp.Diagnostics)
-	var enablementClient *serviceenablement.APIClient
+	if resp.Diagnostics.HasError() {
-	var err error
-	if r.providerData.SKECustomEndpoint != "" {
-		skeClient, err = ske.NewAPIClient(
-			config.WithCustomAuth(r.providerData.RoundTripper),
-			config.WithEndpoint(r.providerData.SKECustomEndpoint),
-		)
-	} else {
-		skeClient, err = ske.NewAPIClient(
-			config.WithCustomAuth(r.providerData.RoundTripper),
-			config.WithRegion(r.providerData.GetRegion()),
-		)
-	}
-
-	if err != nil {
-		core.LogAndAddError(ctx, &resp.Diagnostics, "Error configuring SKE API client", fmt.Sprintf("Configuring client: %v. This is an error related to the provider configuration, not to the resource configuration", err))
 		return
 	}
-
+	serviceEnablementClient := serviceenablementUtils.ConfigureClient(ctx, &r.providerData, &resp.Diagnostics)
-	if r.providerData.ServiceEnablementCustomEndpoint != "" {
+	if resp.Diagnostics.HasError() {
-		enablementClient, err = serviceenablement.NewAPIClient(
-			config.WithCustomAuth(r.providerData.RoundTripper),
-			config.WithEndpoint(r.providerData.ServiceEnablementCustomEndpoint),
-		)
-	} else {
-		enablementClient, err = serviceenablement.NewAPIClient(
-			config.WithCustomAuth(r.providerData.RoundTripper),
-			config.WithRegion(r.providerData.GetRegion()),
-		)
-	}
-
-	if err != nil {
-		core.LogAndAddError(ctx, &resp.Diagnostics, "Error configuring Service Enablement API client", fmt.Sprintf("Configuring client: %v. This is an error related to the provider configuration, not to the resource configuration", err))
 		return
 	}
-
 	r.skeClient = skeClient
-	r.enablementClient = enablementClient
+	r.enablementClient = serviceEnablementClient
 	tflog.Info(ctx, "SKE cluster clients configured")
 }
 

stackit/internal/services/ske/kubeconfig/resource.go

@@ -8,6 +8,8 @@ import (
 	"strings"
 	"time"
 
+	skeUtils "github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/ske/utils"
+
 	"github.com/google/uuid"
 	"github.com/hashicorp/terraform-plugin-framework/schema/validator"
 	"github.com/hashicorp/terraform-plugin-log/tflog"
@@ -24,7 +26,6 @@ import (
 	"github.com/hashicorp/terraform-plugin-framework/resource/schema/planmodifier"
 	"github.com/hashicorp/terraform-plugin-framework/resource/schema/stringplanmodifier"
 	"github.com/hashicorp/terraform-plugin-framework/types"
-	"github.com/stackitcloud/stackit-sdk-go/core/config"
 	sdkUtils "github.com/stackitcloud/stackit-sdk-go/core/utils"
 	"github.com/stackitcloud/stackit-sdk-go/services/ske"
 )
@@ -65,36 +66,15 @@ func (r *kubeconfigResource) Metadata(_ context.Context, req resource.MetadataRe
 
 // Configure adds the provider configured client to the resource.
 func (r *kubeconfigResource) Configure(ctx context.Context, req resource.ConfigureRequest, resp *resource.ConfigureResponse) {
-	// Prevent panic if the provider has not been configured.
+	providerData, ok := conversion.ParseProviderData(ctx, req.ProviderData, &resp.Diagnostics)
-	if req.ProviderData == nil {
-		return
-	}
-
-	providerData, ok := req.ProviderData.(core.ProviderData)
 	if !ok {
-		core.LogAndAddError(ctx, &resp.Diagnostics, "Error configuring API client", fmt.Sprintf("Expected configure type stackit.ProviderData, got %T", req.ProviderData))
 		return
 	}
 
-	var apiClient *ske.APIClient
+	apiClient := skeUtils.ConfigureClient(ctx, &providerData, &resp.Diagnostics)
-	var err error
+	if resp.Diagnostics.HasError() {
-	if providerData.SKECustomEndpoint != "" {
-		apiClient, err = ske.NewAPIClient(
-			config.WithCustomAuth(providerData.RoundTripper),
-			config.WithEndpoint(providerData.SKECustomEndpoint),
-		)
-	} else {
-		apiClient, err = ske.NewAPIClient(
-			config.WithCustomAuth(providerData.RoundTripper),
-			config.WithRegion(providerData.GetRegion()),
-		)
-	}
-
-	if err != nil {
-		core.LogAndAddError(ctx, &resp.Diagnostics, "Error configuring API client", fmt.Sprintf("Configuring client: %v. This is an error related to the provider configuration, not to the resource configuration", err))
 		return
 	}
-
 	r.client = apiClient
 	tflog.Info(ctx, "SKE kubeconfig client configured")
 }

stackit/internal/services/ske/utils/util.go

@@ -0,0 +1,31 @@
+package utils
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/hashicorp/terraform-plugin-framework/diag"
+	"github.com/stackitcloud/stackit-sdk-go/core/config"
+	"github.com/stackitcloud/stackit-sdk-go/services/ske"
+	"github.com/stackitcloud/terraform-provider-stackit/stackit/internal/core"
+	"github.com/stackitcloud/terraform-provider-stackit/stackit/internal/utils"
+)
+
+func ConfigureClient(ctx context.Context, providerData *core.ProviderData, diags *diag.Diagnostics) *ske.APIClient {
+	apiClientConfigOptions := []config.ConfigurationOption{
+		config.WithCustomAuth(providerData.RoundTripper),
+		utils.UserAgentConfigOption(providerData.Version),
+	}
+	if providerData.SKECustomEndpoint != "" {
+		apiClientConfigOptions = append(apiClientConfigOptions, config.WithEndpoint(providerData.SKECustomEndpoint))
+	} else {
+		apiClientConfigOptions = append(apiClientConfigOptions, config.WithRegion(providerData.GetRegion()))
+	}
+	apiClient, err := ske.NewAPIClient(apiClientConfigOptions...)
+	if err != nil {
+		core.LogAndAddError(ctx, diags, "Error configuring API client", fmt.Sprintf("Configuring client: %v. This is an error related to the provider configuration, not to the resource configuration", err))
+		return nil
+	}
+
+	return apiClient
+}

stackit/internal/services/ske/utils/util_test.go

@@ -0,0 +1,94 @@
+package utils
+
+import (
+	"context"
+	"os"
+	"reflect"
+	"testing"
+
+	"github.com/hashicorp/terraform-plugin-framework/diag"
+	sdkClients "github.com/stackitcloud/stackit-sdk-go/core/clients"
+	"github.com/stackitcloud/stackit-sdk-go/core/config"
+	"github.com/stackitcloud/stackit-sdk-go/services/ske"
+	"github.com/stackitcloud/terraform-provider-stackit/stackit/internal/core"
+	"github.com/stackitcloud/terraform-provider-stackit/stackit/internal/utils"
+)
+
+const (
+	testVersion        = "1.2.3"
+	testCustomEndpoint = "https://ske-custom-endpoint.api.stackit.cloud"
+)
+
+func TestConfigureClient(t *testing.T) {
+	/* mock authentication by setting service account token env variable */
+	os.Clearenv()
+	err := os.Setenv(sdkClients.ServiceAccountToken, "mock-val")
+	if err != nil {
+		t.Errorf("error setting env variable: %v", err)
+	}
+
+	type args struct {
+		providerData *core.ProviderData
+	}
+	tests := []struct {
+		name     string
+		args     args
+		wantErr  bool
+		expected *ske.APIClient
+	}{
+		{
+			name: "default endpoint",
+			args: args{
+				providerData: &core.ProviderData{
+					Version: testVersion,
+				},
+			},
+			expected: func() *ske.APIClient {
+				apiClient, err := ske.NewAPIClient(
+					utils.UserAgentConfigOption(testVersion),
+					config.WithRegion("eu01"),
+				)
+				if err != nil {
+					t.Errorf("error configuring client: %v", err)
+				}
+				return apiClient
+			}(),
+			wantErr: false,
+		},
+		{
+			name: "custom endpoint",
+			args: args{
+				providerData: &core.ProviderData{
+					Version:           testVersion,
+					SKECustomEndpoint: testCustomEndpoint,
+				},
+			},
+			expected: func() *ske.APIClient {
+				apiClient, err := ske.NewAPIClient(
+					utils.UserAgentConfigOption(testVersion),
+					config.WithEndpoint(testCustomEndpoint),
+				)
+				if err != nil {
+					t.Errorf("error configuring client: %v", err)
+				}
+				return apiClient
+			}(),
+			wantErr: false,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			ctx := context.Background()
+			diags := diag.Diagnostics{}
+
+			actual := ConfigureClient(ctx, tt.args.providerData, &diags)
+			if diags.HasError() != tt.wantErr {
+				t.Errorf("ConfigureClient() error = %v, want %v", diags.HasError(), tt.wantErr)
+			}
+
+			if !reflect.DeepEqual(actual, tt.expected) {
+				t.Errorf("ConfigureClient() = %v, want %v", actual, tt.expected)
+			}
+		})
+	}
+}