383 lines
14 KiB
Go
383 lines
14 KiB
Go
package loadbalancer
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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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loadbalancerUtils "github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/loadbalancer/utils"
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"github.com/google/uuid"
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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/oapierror"
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"github.com/stackitcloud/stackit-sdk-go/services/loadbalancer"
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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 = &observabilityCredentialResource{}
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_ resource.ResourceWithConfigure = &observabilityCredentialResource{}
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_ resource.ResourceWithImportState = &observabilityCredentialResource{}
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_ resource.ResourceWithModifyPlan = &observabilityCredentialResource{}
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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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DisplayName types.String `tfsdk:"display_name"`
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Username types.String `tfsdk:"username"`
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Password types.String `tfsdk:"password"`
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CredentialsRef types.String `tfsdk:"credentials_ref"`
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Region types.String `tfsdk:"region"`
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}
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// NewObservabilityCredentialResource is a helper function to simplify the provider implementation.
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func NewObservabilityCredentialResource() resource.Resource {
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return &observabilityCredentialResource{}
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}
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// observabilityCredentialResource is the resource implementation.
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type observabilityCredentialResource struct {
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client *loadbalancer.APIClient
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providerData core.ProviderData
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}
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// Metadata returns the resource type name.
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func (r *observabilityCredentialResource) Metadata(_ context.Context, req resource.MetadataRequest, resp *resource.MetadataResponse) {
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resp.TypeName = req.ProviderTypeName + "_loadbalancer_observability_credential"
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}
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// ModifyPlan implements resource.ResourceWithModifyPlan.
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// Use the modifier to set the effective region in the current plan.
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func (r *observabilityCredentialResource) ModifyPlan(ctx context.Context, req resource.ModifyPlanRequest, resp *resource.ModifyPlanResponse) { // nolint:gocritic // function signature required by Terraform
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var configModel Model
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// skip initial empty configuration to avoid follow-up errors
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if req.Config.Raw.IsNull() {
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return
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}
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resp.Diagnostics.Append(req.Config.Get(ctx, &configModel)...)
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if resp.Diagnostics.HasError() {
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return
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}
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var planModel Model
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resp.Diagnostics.Append(req.Plan.Get(ctx, &planModel)...)
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if resp.Diagnostics.HasError() {
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return
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}
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utils.AdaptRegion(ctx, configModel.Region, &planModel.Region, r.providerData.GetRegion(), resp)
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if resp.Diagnostics.HasError() {
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return
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}
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resp.Diagnostics.Append(resp.Plan.Set(ctx, planModel)...)
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if resp.Diagnostics.HasError() {
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return
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}
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}
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// Configure adds the provider configured client to the resource.
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func (r *observabilityCredentialResource) Configure(ctx context.Context, req resource.ConfigureRequest, resp *resource.ConfigureResponse) {
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var ok bool
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r.providerData, ok = conversion.ParseProviderData(ctx, req.ProviderData, &resp.Diagnostics)
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if !ok {
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return
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}
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apiClient := loadbalancerUtils.ConfigureClient(ctx, &r.providerData, &resp.Diagnostics)
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if resp.Diagnostics.HasError() {
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return
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}
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r.client = apiClient
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tflog.Info(ctx, "Load Balancer client configured")
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}
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// Schema defines the schema for the resource.
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func (r *observabilityCredentialResource) Schema(_ context.Context, _ resource.SchemaRequest, resp *resource.SchemaResponse) {
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descriptions := map[string]string{
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"main": "Load balancer observability credential resource schema. Must have a `region` specified in the provider configuration. These contain the username and password for the observability service (e.g. Argus) where the load balancer logs/metrics will be pushed into",
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"id": "Terraform's internal resource ID. It is structured as \"`project_id`\",\"region\",\"`credentials_ref`\".",
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"credentials_ref": "The credentials reference is used by the Load Balancer to define which credentials it will use.",
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"project_id": "STACKIT project ID to which the load balancer observability credential is associated.",
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"display_name": "Observability credential name.",
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"username": "The password for the observability service (e.g. Argus) where the logs/metrics will be pushed into.",
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"password": "The username for the observability service (e.g. Argus) where the logs/metrics will be pushed into.",
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"region": "The resource region. If not defined, the provider region is used.",
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}
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resp.Schema = schema.Schema{
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Description: descriptions["main"],
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Attributes: map[string]schema.Attribute{
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"id": schema.StringAttribute{
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Description: descriptions["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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"credentials_ref": schema.StringAttribute{
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Description: descriptions["credentials_ref"],
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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: descriptions["project_id"],
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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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},
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},
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"display_name": schema.StringAttribute{
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Description: descriptions["display_name"],
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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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},
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"username": schema.StringAttribute{
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Description: descriptions["username"],
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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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},
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"password": schema.StringAttribute{
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Description: descriptions["password"],
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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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},
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"region": schema.StringAttribute{
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Optional: true,
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// must be computed to allow for storing the override value from the provider
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Computed: true,
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Description: descriptions["region"],
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PlanModifiers: []planmodifier.String{
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stringplanmodifier.RequiresReplace(),
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},
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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 *observabilityCredentialResource) 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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ctx = core.InitProviderContext(ctx)
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projectId := model.ProjectId.ValueString()
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region := model.Region.ValueString()
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ctx = tflog.SetField(ctx, "project_id", projectId)
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ctx = tflog.SetField(ctx, "region", region)
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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 observability credential", fmt.Sprintf("Creating API payload: %v", err))
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return
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}
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// Create new observability credentials
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createResp, err := r.client.CreateCredentials(ctx, projectId, region).CreateCredentialsPayload(*payload).XRequestID(uuid.NewString()).Execute()
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error creating observability credential", fmt.Sprintf("Calling API: %v", err))
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return
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}
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ctx = core.LogResponse(ctx)
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ctx = tflog.SetField(ctx, "credentials_ref", createResp.Credential.CredentialsRef)
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// Map response body to schema
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err = mapFields(createResp.Credential, &model, region)
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error creating observability credential", 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, "Load balancer observability credential created")
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}
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// Read refreshes the Terraform state with the latest data.
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func (r *observabilityCredentialResource) 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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ctx = core.InitProviderContext(ctx)
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projectId := model.ProjectId.ValueString()
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credentialsRef := model.CredentialsRef.ValueString()
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region := r.providerData.GetRegionWithOverride(model.Region)
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ctx = tflog.SetField(ctx, "project_id", projectId)
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ctx = tflog.SetField(ctx, "credentials_ref", credentialsRef)
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ctx = tflog.SetField(ctx, "region", region)
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// Get credentials
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credResp, err := r.client.GetCredentials(ctx, projectId, region, credentialsRef).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 observability credential", fmt.Sprintf("Calling API: %v", err))
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return
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}
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ctx = core.LogResponse(ctx)
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// Map response body to schema
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err = mapFields(credResp.Credential, &model, region)
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error reading observability credential", 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, "Load balancer observability credential read")
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}
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func (r *observabilityCredentialResource) Update(ctx context.Context, _ resource.UpdateRequest, resp *resource.UpdateResponse) { // nolint:gocritic // function signature required by Terraform
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// Update shouldn't be called
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error updating observability credential", "Observability credential can't be 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 *observabilityCredentialResource) Delete(ctx context.Context, req resource.DeleteRequest, resp *resource.DeleteResponse) { // 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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ctx = core.InitProviderContext(ctx)
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projectId := model.ProjectId.ValueString()
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credentialsRef := model.CredentialsRef.ValueString()
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region := model.Region.ValueString()
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ctx = tflog.SetField(ctx, "project_id", projectId)
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ctx = tflog.SetField(ctx, "credentials_ref", credentialsRef)
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ctx = tflog.SetField(ctx, "region", region)
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// Delete credentials
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_, err := r.client.DeleteCredentials(ctx, projectId, region, credentialsRef).Execute()
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error deleting observability credential", fmt.Sprintf("Calling API: %v", err))
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return
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}
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ctx = core.LogResponse(ctx)
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tflog.Info(ctx, "Load balancer observability credential 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,name
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func (r *observabilityCredentialResource) 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) != 3 || idParts[0] == "" || idParts[1] == "" || idParts[2] == "" {
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core.LogAndAddError(ctx, &resp.Diagnostics,
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"Error importing observability credential",
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fmt.Sprintf("Expected import identifier with format: [project_id],[region],[credentials_ref] Got: %q", req.ID),
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)
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return
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}
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resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("project_id"), idParts[0])...)
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resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("region"), idParts[1])...)
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resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("credentials_ref"), idParts[2])...)
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tflog.Info(ctx, "Load balancer observability credential state imported")
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}
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func toCreatePayload(model *Model) (*loadbalancer.CreateCredentialsPayload, 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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return &loadbalancer.CreateCredentialsPayload{
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DisplayName: conversion.StringValueToPointer(model.DisplayName),
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Username: conversion.StringValueToPointer(model.Username),
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Password: conversion.StringValueToPointer(model.Password),
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}, nil
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}
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func mapFields(cred *loadbalancer.CredentialsResponse, m *Model, region string) error {
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if cred == nil {
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return fmt.Errorf("response input is nil")
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}
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if m == nil {
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return fmt.Errorf("model input is nil")
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}
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var credentialsRef string
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if m.CredentialsRef.ValueString() != "" {
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credentialsRef = m.CredentialsRef.ValueString()
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} else if cred.CredentialsRef != nil {
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credentialsRef = *cred.CredentialsRef
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} else {
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return fmt.Errorf("credentials ref not present")
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}
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m.CredentialsRef = types.StringValue(credentialsRef)
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m.DisplayName = types.StringPointerValue(cred.DisplayName)
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var username string
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if m.Username.ValueString() != "" {
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username = m.Username.ValueString()
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} else if cred.Username != nil {
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username = *cred.Username
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} else {
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return fmt.Errorf("username not present")
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}
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m.Username = types.StringValue(username)
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m.Region = types.StringValue(region)
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m.Id = utils.BuildInternalTerraformId(
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m.ProjectId.ValueString(),
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m.Region.ValueString(),
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m.CredentialsRef.ValueString(),
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)
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return nil
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}
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