461 lines
16 KiB
Go
461 lines
16 KiB
Go
package network
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import (
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"context"
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"fmt"
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"net/http"
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"strings"
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"github.com/hashicorp/terraform-plugin-framework-validators/stringvalidator"
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"github.com/hashicorp/terraform-plugin-framework/path"
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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/resource/schema/planmodifier"
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"github.com/hashicorp/terraform-plugin-framework/resource/schema/stringplanmodifier"
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"github.com/hashicorp/terraform-plugin-framework/schema/validator"
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"github.com/hashicorp/terraform-plugin-framework/types"
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"github.com/hashicorp/terraform-plugin-log/tflog"
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"github.com/stackitcloud/stackit-sdk-go/core/config"
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"github.com/stackitcloud/stackit-sdk-go/core/oapierror"
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"github.com/stackitcloud/stackit-sdk-go/services/iaas"
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"github.com/stackitcloud/stackit-sdk-go/services/iaas/wait"
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"github.com/stackitcloud/terraform-provider-stackit/stackit/internal/conversion"
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"github.com/stackitcloud/terraform-provider-stackit/stackit/internal/core"
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"github.com/stackitcloud/terraform-provider-stackit/stackit/internal/utils"
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"github.com/stackitcloud/terraform-provider-stackit/stackit/internal/validate"
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)
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// Ensure the implementation satisfies the expected interfaces.
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var (
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_ resource.Resource = &networkResource{}
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_ resource.ResourceWithConfigure = &networkResource{}
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_ resource.ResourceWithImportState = &networkResource{}
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)
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type Model struct {
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Id types.String `tfsdk:"id"` // needed by TF
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ProjectId types.String `tfsdk:"project_id"`
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NetworkId types.String `tfsdk:"network_id"`
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Name types.String `tfsdk:"name"`
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Nameservers types.List `tfsdk:"nameservers"`
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IPv4PrefixLength types.Int64 `tfsdk:"ipv4_prefix_length"`
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Prefixes types.List `tfsdk:"prefixes"`
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PublicIP types.String `tfsdk:"public_ip"`
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}
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// NewNetworkResource is a helper function to simplify the provider implementation.
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func NewNetworkResource() resource.Resource {
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return &networkResource{}
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}
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// networkResource is the resource implementation.
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type networkResource struct {
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client *iaas.APIClient
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}
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// Metadata returns the resource type name.
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func (r *networkResource) Metadata(_ context.Context, req resource.MetadataRequest, resp *resource.MetadataResponse) {
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resp.TypeName = req.ProviderTypeName + "_network"
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}
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// Configure adds the provider configured client to the resource.
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func (r *networkResource) Configure(ctx context.Context, req resource.ConfigureRequest, resp *resource.ConfigureResponse) {
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// Prevent panic if the provider has not been configured.
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if req.ProviderData == nil {
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return
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}
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providerData, ok := req.ProviderData.(core.ProviderData)
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if !ok {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error configuring API client", fmt.Sprintf("Expected configure type stackit.ProviderData, got %T", req.ProviderData))
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return
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}
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var apiClient *iaas.APIClient
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var err error
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if providerData.IaaSCustomEndpoint != "" {
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ctx = tflog.SetField(ctx, "iaas_custom_endpoint", providerData.IaaSCustomEndpoint)
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apiClient, err = iaas.NewAPIClient(
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config.WithCustomAuth(providerData.RoundTripper),
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config.WithEndpoint(providerData.IaaSCustomEndpoint),
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)
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} else {
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apiClient, err = iaas.NewAPIClient(
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config.WithCustomAuth(providerData.RoundTripper),
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config.WithRegion(providerData.Region),
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)
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}
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if err != nil {
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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))
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return
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}
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r.client = apiClient
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tflog.Info(ctx, "IaaS client configured")
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}
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// Schema defines the schema for the resource.
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func (r *networkResource) Schema(_ context.Context, _ resource.SchemaRequest, resp *resource.SchemaResponse) {
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resp.Schema = schema.Schema{
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Description: "Network resource schema. Must have a `region` specified in the provider configuration.",
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Attributes: map[string]schema.Attribute{
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"id": schema.StringAttribute{
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Description: "Terraform's internal resource ID. It is structured as \"`project_id`,`network_id`\".",
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Computed: true,
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PlanModifiers: []planmodifier.String{
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stringplanmodifier.UseStateForUnknown(),
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},
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},
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"project_id": schema.StringAttribute{
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Description: "STACKIT project ID to which the network is associated.",
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Required: true,
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PlanModifiers: []planmodifier.String{
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stringplanmodifier.RequiresReplace(),
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},
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Validators: []validator.String{
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validate.UUID(),
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validate.NoSeparator(),
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},
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},
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"network_id": schema.StringAttribute{
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Description: "The network ID.",
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Computed: true,
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PlanModifiers: []planmodifier.String{
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stringplanmodifier.UseStateForUnknown(),
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},
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Validators: []validator.String{
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validate.UUID(),
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validate.NoSeparator(),
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},
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},
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"name": schema.StringAttribute{
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Description: "The name of the network.",
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Required: true,
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Validators: []validator.String{
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stringvalidator.LengthAtLeast(1),
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stringvalidator.LengthAtMost(63),
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},
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},
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"nameservers": schema.ListAttribute{
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Description: "The nameservers of the network.",
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Required: true,
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ElementType: types.StringType,
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},
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"ipv4_prefix_length": schema.Int64Attribute{
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Description: "The IPv4 prefix length of the network.",
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Optional: true,
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},
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"prefixes": schema.ListAttribute{
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Description: "The prefixes of the network.",
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Computed: true,
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ElementType: types.StringType,
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},
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"public_ip": schema.StringAttribute{
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Description: "The public IP of the network.",
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Computed: true,
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},
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},
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}
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}
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// Create creates the resource and sets the initial Terraform state.
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func (r *networkResource) Create(ctx context.Context, req resource.CreateRequest, resp *resource.CreateResponse) { // nolint:gocritic // function signature required by Terraform
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// Retrieve values from plan
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var model Model
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diags := req.Plan.Get(ctx, &model)
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resp.Diagnostics.Append(diags...)
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if resp.Diagnostics.HasError() {
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return
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}
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projectId := model.ProjectId.ValueString()
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ctx = tflog.SetField(ctx, "project_id", projectId)
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// Generate API request body from model
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payload, err := toCreatePayload(&model)
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error creating network", fmt.Sprintf("Creating API payload: %v", err))
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return
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}
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// Create new network
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network, err := r.client.CreateNetwork(ctx, projectId).CreateNetworkPayload(*payload).Execute()
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error creating network", fmt.Sprintf("Calling API: %v", err))
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return
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}
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networkId := *network.NetworkId
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network, err = wait.CreateNetworkWaitHandler(ctx, r.client, projectId, networkId).WaitWithContext(ctx)
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error creating network", fmt.Sprintf("Network creation waiting: %v", err))
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return
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}
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ctx = tflog.SetField(ctx, "network_id", networkId)
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// Map response body to schema
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err = mapFields(ctx, network, &model)
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error creating network", fmt.Sprintf("Processing API payload: %v", err))
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return
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}
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// Set state to fully populated data
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diags = resp.State.Set(ctx, model)
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resp.Diagnostics.Append(diags...)
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if resp.Diagnostics.HasError() {
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return
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}
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tflog.Info(ctx, "Network created")
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}
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// Read refreshes the Terraform state with the latest data.
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func (r *networkResource) Read(ctx context.Context, req resource.ReadRequest, resp *resource.ReadResponse) { // nolint:gocritic // function signature required by Terraform
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var model Model
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diags := req.State.Get(ctx, &model)
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resp.Diagnostics.Append(diags...)
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if resp.Diagnostics.HasError() {
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return
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}
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projectId := model.ProjectId.ValueString()
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networkId := model.NetworkId.ValueString()
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ctx = tflog.SetField(ctx, "project_id", projectId)
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ctx = tflog.SetField(ctx, "network_id", networkId)
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networkResp, err := r.client.GetNetwork(ctx, projectId, networkId).Execute()
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if err != nil {
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oapiErr, ok := err.(*oapierror.GenericOpenAPIError) //nolint:errorlint //complaining that error.As should be used to catch wrapped errors, but this error should not be wrapped
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if ok && oapiErr.StatusCode == http.StatusNotFound {
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resp.State.RemoveResource(ctx)
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return
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}
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error reading network", fmt.Sprintf("Calling API: %v", err))
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return
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}
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// Map response body to schema
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err = mapFields(ctx, networkResp, &model)
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error reading network", fmt.Sprintf("Processing API payload: %v", err))
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return
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}
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// Set refreshed state
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diags = resp.State.Set(ctx, model)
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resp.Diagnostics.Append(diags...)
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if resp.Diagnostics.HasError() {
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return
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}
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tflog.Info(ctx, "Network read")
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}
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// Update updates the resource and sets the updated Terraform state on success.
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func (r *networkResource) Update(ctx context.Context, req resource.UpdateRequest, resp *resource.UpdateResponse) { // nolint:gocritic // function signature required by Terraform
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// Retrieve values from plan
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var model Model
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diags := req.Plan.Get(ctx, &model)
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resp.Diagnostics.Append(diags...)
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if resp.Diagnostics.HasError() {
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return
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}
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projectId := model.ProjectId.ValueString()
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networkId := model.NetworkId.ValueString()
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ctx = tflog.SetField(ctx, "project_id", projectId)
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ctx = tflog.SetField(ctx, "network_id", networkId)
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// Generate API request body from model
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payload, err := toUpdatePayload(&model)
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error updating network", fmt.Sprintf("Creating API payload: %v", err))
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return
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}
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// Update existing network
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err = r.client.PartialUpdateNetwork(ctx, projectId, networkId).PartialUpdateNetworkPayload(*payload).Execute()
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error updating network", fmt.Sprintf("Calling API: %v", err))
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return
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}
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waitResp, err := wait.UpdateNetworkWaitHandler(ctx, r.client, projectId, networkId).WaitWithContext(ctx)
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error updating network", fmt.Sprintf("Network update waiting: %v", err))
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return
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}
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err = mapFields(ctx, waitResp, &model)
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error updating network", fmt.Sprintf("Processing API payload: %v", err))
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return
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}
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diags = resp.State.Set(ctx, model)
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resp.Diagnostics.Append(diags...)
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if resp.Diagnostics.HasError() {
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return
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}
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tflog.Info(ctx, "Network updated")
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}
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// Delete deletes the resource and removes the Terraform state on success.
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func (r *networkResource) Delete(ctx context.Context, req resource.DeleteRequest, resp *resource.DeleteResponse) { // nolint:gocritic // function signature required by Terraform
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// Retrieve values from state
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var model Model
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diags := req.State.Get(ctx, &model)
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resp.Diagnostics.Append(diags...)
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if resp.Diagnostics.HasError() {
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return
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}
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projectId := model.ProjectId.ValueString()
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networkId := model.NetworkId.ValueString()
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ctx = tflog.SetField(ctx, "project_id", projectId)
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ctx = tflog.SetField(ctx, "network_id", networkId)
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// Delete existing network
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err := r.client.DeleteNetwork(ctx, projectId, networkId).Execute()
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error deleting network", fmt.Sprintf("Calling API: %v", err))
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return
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}
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_, err = wait.DeleteNetworkWaitHandler(ctx, r.client, projectId, networkId).WaitWithContext(ctx)
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error deleting network", fmt.Sprintf("Network deletion waiting: %v", err))
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return
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}
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tflog.Info(ctx, "Network deleted")
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}
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// ImportState imports a resource into the Terraform state on success.
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// The expected format of the resource import identifier is: project_id,network_id
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func (r *networkResource) ImportState(ctx context.Context, req resource.ImportStateRequest, resp *resource.ImportStateResponse) {
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idParts := strings.Split(req.ID, core.Separator)
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if len(idParts) != 2 || idParts[0] == "" || idParts[1] == "" {
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core.LogAndAddError(ctx, &resp.Diagnostics,
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"Error importing network",
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fmt.Sprintf("Expected import identifier with format: [project_id],[network_id] Got: %q", req.ID),
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)
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return
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}
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projectId := idParts[0]
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networkId := idParts[1]
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ctx = tflog.SetField(ctx, "project_id", projectId)
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ctx = tflog.SetField(ctx, "network_id", networkId)
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resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("project_id"), projectId)...)
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resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("network_id"), networkId)...)
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tflog.Info(ctx, "Network state imported")
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}
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func mapFields(ctx context.Context, networkResp *iaas.Network, model *Model) error {
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if networkResp == nil {
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return fmt.Errorf("response input is nil")
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}
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if model == nil {
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return fmt.Errorf("model input is nil")
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}
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var networkId string
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if model.NetworkId.ValueString() != "" {
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networkId = model.NetworkId.ValueString()
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} else if networkResp.NetworkId != nil {
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networkId = *networkResp.NetworkId
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} else {
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return fmt.Errorf("network id not present")
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}
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idParts := []string{
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model.ProjectId.ValueString(),
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networkId,
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}
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model.Id = types.StringValue(
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strings.Join(idParts, core.Separator),
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)
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if networkResp.Nameservers == nil {
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model.Nameservers = types.ListNull(types.StringType)
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} else {
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respNameservers := *networkResp.Nameservers
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modelNameservers, err := utils.ListValuetoStringSlice(model.Nameservers)
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if err != nil {
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return fmt.Errorf("get current network nameservers from model: %w", err)
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}
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reconciledNameservers := utils.ReconcileStringSlices(modelNameservers, respNameservers)
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nameserversTF, diags := types.ListValueFrom(ctx, types.StringType, reconciledNameservers)
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if diags.HasError() {
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return fmt.Errorf("map network nameservers: %w", core.DiagsToError(diags))
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}
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model.Nameservers = nameserversTF
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}
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if networkResp.Prefixes == nil {
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model.Prefixes = types.ListNull(types.StringType)
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} else {
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respPrefixes := *networkResp.Prefixes
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prefixesTF, diags := types.ListValueFrom(ctx, types.StringType, respPrefixes)
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if diags.HasError() {
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return fmt.Errorf("map network prefixes: %w", core.DiagsToError(diags))
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}
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model.Prefixes = prefixesTF
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}
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model.NetworkId = types.StringValue(networkId)
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model.Name = types.StringPointerValue(networkResp.Name)
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model.PublicIP = types.StringPointerValue(networkResp.PublicIp)
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return nil
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}
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func toCreatePayload(model *Model) (*iaas.CreateNetworkPayload, error) {
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if model == nil {
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return nil, fmt.Errorf("nil model")
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}
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modelNameservers := []string{}
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for _, ns := range model.Nameservers.Elements() {
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nameserverString, ok := ns.(types.String)
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if !ok {
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return nil, fmt.Errorf("type assertion failed")
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}
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modelNameservers = append(modelNameservers, nameserverString.ValueString())
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}
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return &iaas.CreateNetworkPayload{
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Name: conversion.StringValueToPointer(model.Name),
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AddressFamily: &iaas.CreateNetworkAddressFamily{
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Ipv4: &iaas.CreateNetworkIPv4Body{
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PrefixLength: conversion.Int64ValueToPointer(model.IPv4PrefixLength),
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Nameservers: &modelNameservers,
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},
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},
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}, nil
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}
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func toUpdatePayload(model *Model) (*iaas.PartialUpdateNetworkPayload, error) {
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if model == nil {
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return nil, fmt.Errorf("nil model")
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}
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modelNameservers := []string{}
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for _, ns := range model.Nameservers.Elements() {
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nameserverString, ok := ns.(types.String)
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if !ok {
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return nil, fmt.Errorf("type assertion failed")
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}
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modelNameservers = append(modelNameservers, nameserverString.ValueString())
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}
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return &iaas.PartialUpdateNetworkPayload{
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Name: conversion.StringValueToPointer(model.Name),
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AddressFamily: &iaas.UpdateNetworkAddressFamily{
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Ipv4: &iaas.UpdateNetworkIPv4Body{
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Nameservers: &modelNameservers,
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},
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},
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}, nil
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}
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