600 lines
21 KiB
Go
600 lines
21 KiB
Go
package volume
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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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"regexp"
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"strings"
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iaasUtils "github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/iaas/utils"
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"github.com/hashicorp/terraform-plugin-framework-validators/resourcevalidator"
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"github.com/hashicorp/terraform-plugin-framework-validators/stringvalidator"
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"github.com/hashicorp/terraform-plugin-framework/attr"
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"github.com/hashicorp/terraform-plugin-framework/diag"
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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/objectplanmodifier"
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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-framework/types/basetypes"
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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/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 = &volumeResource{}
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_ resource.ResourceWithConfigure = &volumeResource{}
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_ resource.ResourceWithImportState = &volumeResource{}
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SupportedSourceTypes = []string{"volume", "image", "snapshot", "backup"}
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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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VolumeId types.String `tfsdk:"volume_id"`
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Name types.String `tfsdk:"name"`
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AvailabilityZone types.String `tfsdk:"availability_zone"`
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Labels types.Map `tfsdk:"labels"`
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Description types.String `tfsdk:"description"`
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PerformanceClass types.String `tfsdk:"performance_class"`
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Size types.Int64 `tfsdk:"size"`
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ServerId types.String `tfsdk:"server_id"`
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Source types.Object `tfsdk:"source"`
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}
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// Struct corresponding to Model.Source
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type sourceModel struct {
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Type types.String `tfsdk:"type"`
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Id types.String `tfsdk:"id"`
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}
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// Types corresponding to sourceModel
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var sourceTypes = map[string]attr.Type{
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"type": basetypes.StringType{},
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"id": basetypes.StringType{},
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}
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// NewVolumeResource is a helper function to simplify the provider implementation.
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func NewVolumeResource() resource.Resource {
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return &volumeResource{}
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}
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// volumeResource is the resource implementation.
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type volumeResource 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 *volumeResource) Metadata(_ context.Context, req resource.MetadataRequest, resp *resource.MetadataResponse) {
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resp.TypeName = req.ProviderTypeName + "_volume"
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}
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// ConfigValidators validates the resource configuration
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func (r *volumeResource) ConfigValidators(_ context.Context) []resource.ConfigValidator {
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return []resource.ConfigValidator{
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resourcevalidator.AtLeastOneOf(
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path.MatchRoot("source"),
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path.MatchRoot("size"),
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),
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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 *volumeResource) Configure(ctx context.Context, req resource.ConfigureRequest, resp *resource.ConfigureResponse) {
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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 := iaasUtils.ConfigureClient(ctx, &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, "iaas client configured")
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}
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// Schema defines the schema for the resource.
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func (r *volumeResource) Schema(_ context.Context, _ resource.SchemaRequest, resp *resource.SchemaResponse) {
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description := "Volume resource schema. Must have a `region` specified in the provider configuration."
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resp.Schema = schema.Schema{
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MarkdownDescription: description,
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Description: description,
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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`,`volume_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 volume 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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"volume_id": schema.StringAttribute{
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Description: "The volume 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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"server_id": schema.StringAttribute{
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Description: "The server ID of the server to which the volume is attached to.",
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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 volume.",
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Optional: true,
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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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stringvalidator.LengthAtLeast(1),
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stringvalidator.LengthAtMost(63),
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stringvalidator.RegexMatches(
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regexp.MustCompile(`^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$`),
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"must match expression"),
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},
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},
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"description": schema.StringAttribute{
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Description: "The description of the volume.",
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Optional: true,
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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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stringvalidator.LengthAtLeast(1),
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stringvalidator.LengthAtMost(127),
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},
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},
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"availability_zone": schema.StringAttribute{
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Description: "The availability zone of the volume.",
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PlanModifiers: []planmodifier.String{
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stringplanmodifier.RequiresReplace(),
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},
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Required: true,
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},
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"labels": schema.MapAttribute{
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Description: "Labels are key-value string pairs which can be attached to a resource container",
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ElementType: types.StringType,
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Optional: true,
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},
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"performance_class": schema.StringAttribute{
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MarkdownDescription: "The performance class of the volume. Possible values are documented in [Service plans BlockStorage](https://docs.stackit.cloud/stackit/en/service-plans-blockstorage-75137974.html#ServiceplansBlockStorage-CurrentlyavailableServicePlans%28performanceclasses%29)",
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Optional: true,
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Computed: true,
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PlanModifiers: []planmodifier.String{
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stringplanmodifier.RequiresReplace(),
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stringplanmodifier.UseStateForUnknown(),
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},
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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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stringvalidator.RegexMatches(
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regexp.MustCompile(`^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$`),
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"must match expression"),
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},
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},
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"size": schema.Int64Attribute{
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Description: "The size of the volume in GB. It can only be updated to a larger value than the current size. Either `size` or `source` must be provided",
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Optional: true,
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Computed: true,
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PlanModifiers: []planmodifier.Int64{
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volumeResizeModifier{},
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},
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},
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"source": schema.SingleNestedAttribute{
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Description: "The source of the volume. It can be either a volume, an image, a snapshot or a backup. Either `size` or `source` must be provided",
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Optional: true,
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PlanModifiers: []planmodifier.Object{
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objectplanmodifier.RequiresReplace(),
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},
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Attributes: map[string]schema.Attribute{
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"type": schema.StringAttribute{
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Description: "The type of the source. " + utils.FormatPossibleValues(SupportedSourceTypes...),
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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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"id": schema.StringAttribute{
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Description: "The ID of the source, e.g. image 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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},
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},
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},
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},
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}
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}
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var _ planmodifier.Int64 = volumeResizeModifier{}
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type volumeResizeModifier struct {
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}
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// Description implements planmodifier.String.
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func (v volumeResizeModifier) Description(context.Context) string {
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return "validates volume resize"
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}
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// MarkdownDescription implements planmodifier.String.
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func (v volumeResizeModifier) MarkdownDescription(ctx context.Context) string {
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return v.Description(ctx)
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}
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// PlanModifyInt64 implements planmodifier.Int64.
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func (v volumeResizeModifier) PlanModifyInt64(ctx context.Context, req planmodifier.Int64Request, resp *planmodifier.Int64Response) { // nolint:gocritic // function signature required by Terraform
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var planSize types.Int64
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var currentSize types.Int64
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resp.Diagnostics.Append(req.Plan.GetAttribute(ctx, path.Root("size"), &planSize)...)
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if resp.Diagnostics.HasError() {
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return
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}
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resp.Diagnostics.Append(req.State.GetAttribute(ctx, path.Root("size"), ¤tSize)...)
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if resp.Diagnostics.HasError() {
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return
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}
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if planSize.ValueInt64() < currentSize.ValueInt64() {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error changing volume size", "A volume cannot be made smaller in order to prevent data loss.")
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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 *volumeResource) 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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var source = &sourceModel{}
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if !(model.Source.IsNull() || model.Source.IsUnknown()) {
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diags = model.Source.As(ctx, source, basetypes.ObjectAsOptions{})
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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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}
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// Generate API request body from model
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payload, err := toCreatePayload(ctx, &model, source)
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error creating volume", fmt.Sprintf("Creating API payload: %v", err))
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return
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}
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// Create new volume
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volume, err := r.client.CreateVolume(ctx, projectId).CreateVolumePayload(*payload).Execute()
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error creating volume", fmt.Sprintf("Calling API: %v", err))
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return
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}
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volumeId := *volume.Id
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volume, err = wait.CreateVolumeWaitHandler(ctx, r.client, projectId, volumeId).WaitWithContext(ctx)
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error creating volume", fmt.Sprintf("volume creation waiting: %v", err))
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return
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}
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ctx = tflog.SetField(ctx, "volume_id", volumeId)
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// Map response body to schema
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err = mapFields(ctx, volume, &model)
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error creating volume", 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, "Volume created")
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}
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// Read refreshes the Terraform state with the latest data.
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func (r *volumeResource) 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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volumeId := model.VolumeId.ValueString()
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ctx = tflog.SetField(ctx, "project_id", projectId)
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ctx = tflog.SetField(ctx, "volume_id", volumeId)
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volumeResp, err := r.client.GetVolume(ctx, projectId, volumeId).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 volume", 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, volumeResp, &model)
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error reading volume", 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, "volume 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 *volumeResource) 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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volumeId := model.VolumeId.ValueString()
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ctx = tflog.SetField(ctx, "project_id", projectId)
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ctx = tflog.SetField(ctx, "volume_id", volumeId)
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// Retrieve values from state
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var stateModel Model
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diags = req.State.Get(ctx, &stateModel)
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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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// Generate API request body from model
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payload, err := toUpdatePayload(ctx, &model, stateModel.Labels)
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error updating volume", fmt.Sprintf("Creating API payload: %v", err))
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return
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}
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// Update existing volume
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updatedVolume, err := r.client.UpdateVolume(ctx, projectId, volumeId).UpdateVolumePayload(*payload).Execute()
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error updating volume", fmt.Sprintf("Calling API: %v", err))
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return
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}
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// Resize existing volume
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modelSize := conversion.Int64ValueToPointer(model.Size)
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if modelSize != nil && updatedVolume.Size != nil {
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// A volume can only be resized to larger values, otherwise an error occurs
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if *modelSize < *updatedVolume.Size {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error updating volume", fmt.Sprintf("The new volume size must be larger than the current size (%d GB)", *updatedVolume.Size))
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} else if *modelSize > *updatedVolume.Size {
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payload := iaas.ResizeVolumePayload{
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Size: modelSize,
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}
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err := r.client.ResizeVolume(ctx, projectId, volumeId).ResizeVolumePayload(payload).Execute()
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error updating volume", fmt.Sprintf("Resizing the volume, calling API: %v", err))
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}
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// Update volume model because the API doesn't return a volume object as response
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updatedVolume.Size = modelSize
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}
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}
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err = mapFields(ctx, updatedVolume, &model)
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error updating volume", 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, "volume 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 *volumeResource) 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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volumeId := model.VolumeId.ValueString()
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ctx = tflog.SetField(ctx, "project_id", projectId)
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ctx = tflog.SetField(ctx, "volume_id", volumeId)
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// Delete existing volume
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err := r.client.DeleteVolume(ctx, projectId, volumeId).Execute()
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error deleting volume", fmt.Sprintf("Calling API: %v", err))
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return
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}
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_, err = wait.DeleteVolumeWaitHandler(ctx, r.client, projectId, volumeId).WaitWithContext(ctx)
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error deleting volume", fmt.Sprintf("volume deletion waiting: %v", err))
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return
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}
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|
|
tflog.Info(ctx, "volume deleted")
|
|
}
|
|
|
|
// ImportState imports a resource into the Terraform state on success.
|
|
// The expected format of the resource import identifier is: project_id,volume_id
|
|
func (r *volumeResource) ImportState(ctx context.Context, req resource.ImportStateRequest, resp *resource.ImportStateResponse) {
|
|
idParts := strings.Split(req.ID, core.Separator)
|
|
|
|
if len(idParts) != 2 || idParts[0] == "" || idParts[1] == "" {
|
|
core.LogAndAddError(ctx, &resp.Diagnostics,
|
|
"Error importing volume",
|
|
fmt.Sprintf("Expected import identifier with format: [project_id],[volume_id] Got: %q", req.ID),
|
|
)
|
|
return
|
|
}
|
|
|
|
projectId := idParts[0]
|
|
volumeId := idParts[1]
|
|
ctx = tflog.SetField(ctx, "project_id", projectId)
|
|
ctx = tflog.SetField(ctx, "volume_id", volumeId)
|
|
|
|
resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("project_id"), projectId)...)
|
|
resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("volume_id"), volumeId)...)
|
|
tflog.Info(ctx, "volume state imported")
|
|
}
|
|
|
|
func mapFields(ctx context.Context, volumeResp *iaas.Volume, model *Model) error {
|
|
if volumeResp == nil {
|
|
return fmt.Errorf("response input is nil")
|
|
}
|
|
if model == nil {
|
|
return fmt.Errorf("model input is nil")
|
|
}
|
|
|
|
var volumeId string
|
|
if model.VolumeId.ValueString() != "" {
|
|
volumeId = model.VolumeId.ValueString()
|
|
} else if volumeResp.Id != nil {
|
|
volumeId = *volumeResp.Id
|
|
} else {
|
|
return fmt.Errorf("Volume id not present")
|
|
}
|
|
|
|
model.Id = utils.BuildInternalTerraformId(model.ProjectId.ValueString(), volumeId)
|
|
|
|
labels, err := iaasUtils.MapLabels(ctx, volumeResp.Labels, model.Labels)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
var sourceValues map[string]attr.Value
|
|
var sourceObject basetypes.ObjectValue
|
|
if volumeResp.Source == nil {
|
|
sourceObject = types.ObjectNull(sourceTypes)
|
|
} else {
|
|
sourceValues = map[string]attr.Value{
|
|
"type": types.StringPointerValue(volumeResp.Source.Type),
|
|
"id": types.StringPointerValue(volumeResp.Source.Id),
|
|
}
|
|
var diags diag.Diagnostics
|
|
sourceObject, diags = types.ObjectValue(sourceTypes, sourceValues)
|
|
if diags.HasError() {
|
|
return fmt.Errorf("creating source: %w", core.DiagsToError(diags))
|
|
}
|
|
}
|
|
|
|
model.VolumeId = types.StringValue(volumeId)
|
|
model.AvailabilityZone = types.StringPointerValue(volumeResp.AvailabilityZone)
|
|
model.Description = types.StringPointerValue(volumeResp.Description)
|
|
model.Name = types.StringPointerValue(volumeResp.Name)
|
|
// Workaround for volumes with no names which return an empty string instead of nil
|
|
if name := volumeResp.Name; name != nil && *name == "" {
|
|
model.Name = types.StringNull()
|
|
}
|
|
model.Labels = labels
|
|
model.PerformanceClass = types.StringPointerValue(volumeResp.PerformanceClass)
|
|
model.ServerId = types.StringPointerValue(volumeResp.ServerId)
|
|
model.Size = types.Int64PointerValue(volumeResp.Size)
|
|
model.Source = sourceObject
|
|
return nil
|
|
}
|
|
|
|
func toCreatePayload(ctx context.Context, model *Model, source *sourceModel) (*iaas.CreateVolumePayload, error) {
|
|
if model == nil {
|
|
return nil, fmt.Errorf("nil model")
|
|
}
|
|
|
|
labels, err := conversion.ToStringInterfaceMap(ctx, model.Labels)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("converting to Go map: %w", err)
|
|
}
|
|
|
|
var sourcePayload *iaas.VolumeSource
|
|
|
|
if !source.Id.IsNull() && !source.Type.IsNull() {
|
|
sourcePayload = &iaas.VolumeSource{
|
|
Id: conversion.StringValueToPointer(source.Id),
|
|
Type: conversion.StringValueToPointer(source.Type),
|
|
}
|
|
}
|
|
|
|
return &iaas.CreateVolumePayload{
|
|
AvailabilityZone: conversion.StringValueToPointer(model.AvailabilityZone),
|
|
Description: conversion.StringValueToPointer(model.Description),
|
|
Labels: &labels,
|
|
Name: conversion.StringValueToPointer(model.Name),
|
|
PerformanceClass: conversion.StringValueToPointer(model.PerformanceClass),
|
|
Size: conversion.Int64ValueToPointer(model.Size),
|
|
Source: sourcePayload,
|
|
}, nil
|
|
}
|
|
|
|
func toUpdatePayload(ctx context.Context, model *Model, currentLabels types.Map) (*iaas.UpdateVolumePayload, error) {
|
|
if model == nil {
|
|
return nil, fmt.Errorf("nil model")
|
|
}
|
|
|
|
labels, err := conversion.ToJSONMapPartialUpdatePayload(ctx, currentLabels, model.Labels)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("converting to Go map: %w", err)
|
|
}
|
|
|
|
return &iaas.UpdateVolumePayload{
|
|
Description: conversion.StringValueToPointer(model.Description),
|
|
Name: conversion.StringValueToPointer(model.Name),
|
|
Labels: &labels,
|
|
}, nil
|
|
}
|