package google import ( "fmt" "log" "strings" "github.com/hashicorp/terraform/helper/resource" "github.com/hashicorp/terraform/helper/schema" "google.golang.org/api/compute/v1" "google.golang.org/api/googleapi" ) func resourceComputeInstanceTemplate() *schema.Resource { return &schema.Resource{ Create: resourceComputeInstanceTemplateCreate, Read: resourceComputeInstanceTemplateRead, Delete: resourceComputeInstanceTemplateDelete, Importer: &schema.ResourceImporter{ State: schema.ImportStatePassthrough, }, Schema: map[string]*schema.Schema{ "name": &schema.Schema{ Type: schema.TypeString, Optional: true, Computed: true, ForceNew: true, ConflictsWith: []string{"name_prefix"}, ValidateFunc: func(v interface{}, k string) (ws []string, errors []error) { // https://cloud.google.com/compute/docs/reference/latest/instanceTemplates#resource value := v.(string) if len(value) > 63 { errors = append(errors, fmt.Errorf( "%q cannot be longer than 63 characters", k)) } return }, }, "name_prefix": &schema.Schema{ Type: schema.TypeString, Optional: true, ForceNew: true, ValidateFunc: func(v interface{}, k string) (ws []string, errors []error) { // https://cloud.google.com/compute/docs/reference/latest/instanceTemplates#resource // uuid is 26 characters, limit the prefix to 37. value := v.(string) if len(value) > 37 { errors = append(errors, fmt.Errorf( "%q cannot be longer than 37 characters, name is limited to 63", k)) } return }, }, "disk": &schema.Schema{ Type: schema.TypeList, Required: true, ForceNew: true, Elem: &schema.Resource{ Schema: map[string]*schema.Schema{ "auto_delete": &schema.Schema{ Type: schema.TypeBool, Optional: true, Default: true, ForceNew: true, }, "boot": &schema.Schema{ Type: schema.TypeBool, Optional: true, ForceNew: true, Computed: true, }, "device_name": &schema.Schema{ Type: schema.TypeString, Optional: true, ForceNew: true, }, "disk_name": &schema.Schema{ Type: schema.TypeString, Optional: true, ForceNew: true, }, "disk_size_gb": &schema.Schema{ Type: schema.TypeInt, Optional: true, ForceNew: true, }, "disk_type": &schema.Schema{ Type: schema.TypeString, Optional: true, ForceNew: true, Computed: true, }, "source_image": &schema.Schema{ Type: schema.TypeString, Optional: true, ForceNew: true, }, "interface": &schema.Schema{ Type: schema.TypeString, Optional: true, ForceNew: true, Computed: true, }, "mode": &schema.Schema{ Type: schema.TypeString, Optional: true, ForceNew: true, Computed: true, }, "source": &schema.Schema{ Type: schema.TypeString, Optional: true, ForceNew: true, }, "type": &schema.Schema{ Type: schema.TypeString, Optional: true, ForceNew: true, Computed: true, }, }, }, }, "machine_type": &schema.Schema{ Type: schema.TypeString, Required: true, ForceNew: true, }, "automatic_restart": &schema.Schema{ Type: schema.TypeBool, Optional: true, Default: true, ForceNew: true, Deprecated: "Please use `scheduling.automatic_restart` instead", }, "can_ip_forward": &schema.Schema{ Type: schema.TypeBool, Optional: true, Default: false, ForceNew: true, }, "description": &schema.Schema{ Type: schema.TypeString, Optional: true, ForceNew: true, }, "instance_description": &schema.Schema{ Type: schema.TypeString, Optional: true, ForceNew: true, }, "metadata": &schema.Schema{ Type: schema.TypeMap, Optional: true, ForceNew: true, }, "metadata_fingerprint": &schema.Schema{ Type: schema.TypeString, Computed: true, }, "network_interface": &schema.Schema{ Type: schema.TypeList, Optional: true, ForceNew: true, Elem: &schema.Resource{ Schema: map[string]*schema.Schema{ "network": &schema.Schema{ Type: schema.TypeString, Optional: true, ForceNew: true, Computed: true, }, "subnetwork": &schema.Schema{ Type: schema.TypeString, Optional: true, ForceNew: true, }, "access_config": &schema.Schema{ Type: schema.TypeList, Optional: true, Elem: &schema.Resource{ Schema: map[string]*schema.Schema{ "nat_ip": &schema.Schema{ Type: schema.TypeString, Computed: true, Optional: true, }, }, }, }, }, }, }, "on_host_maintenance": &schema.Schema{ Type: schema.TypeString, Optional: true, ForceNew: true, Deprecated: "Please use `scheduling.on_host_maintenance` instead", }, "project": &schema.Schema{ Type: schema.TypeString, Optional: true, ForceNew: true, Computed: true, }, "region": &schema.Schema{ Type: schema.TypeString, Optional: true, ForceNew: true, }, "scheduling": &schema.Schema{ Type: schema.TypeList, Optional: true, Computed: true, ForceNew: true, Elem: &schema.Resource{ Schema: map[string]*schema.Schema{ "preemptible": &schema.Schema{ Type: schema.TypeBool, Optional: true, Default: false, ForceNew: true, }, "automatic_restart": &schema.Schema{ Type: schema.TypeBool, Optional: true, Default: true, ForceNew: true, }, "on_host_maintenance": &schema.Schema{ Type: schema.TypeString, Optional: true, Computed: true, ForceNew: true, }, }, }, }, "self_link": &schema.Schema{ Type: schema.TypeString, Computed: true, }, "service_account": &schema.Schema{ Type: schema.TypeList, MaxItems: 1, Optional: true, ForceNew: true, Elem: &schema.Resource{ Schema: map[string]*schema.Schema{ "email": &schema.Schema{ Type: schema.TypeString, Optional: true, Computed: true, ForceNew: true, }, "scopes": &schema.Schema{ Type: schema.TypeList, Required: true, ForceNew: true, Elem: &schema.Schema{ Type: schema.TypeString, StateFunc: func(v interface{}) string { return canonicalizeServiceScope(v.(string)) }, }, }, }, }, }, "tags": &schema.Schema{ Type: schema.TypeSet, Optional: true, ForceNew: true, Elem: &schema.Schema{Type: schema.TypeString}, Set: schema.HashString, }, "tags_fingerprint": &schema.Schema{ Type: schema.TypeString, Computed: true, }, }, } } func buildDisks(d *schema.ResourceData, meta interface{}) ([]*compute.AttachedDisk, error) { config := meta.(*Config) disksCount := d.Get("disk.#").(int) disks := make([]*compute.AttachedDisk, 0, disksCount) for i := 0; i < disksCount; i++ { prefix := fmt.Sprintf("disk.%d", i) // Build the disk var disk compute.AttachedDisk disk.Type = "PERSISTENT" disk.Mode = "READ_WRITE" disk.Interface = "SCSI" disk.Boot = i == 0 disk.AutoDelete = d.Get(prefix + ".auto_delete").(bool) if v, ok := d.GetOk(prefix + ".boot"); ok { disk.Boot = v.(bool) } if v, ok := d.GetOk(prefix + ".device_name"); ok { disk.DeviceName = v.(string) } if v, ok := d.GetOk(prefix + ".source"); ok { disk.Source = v.(string) } else { disk.InitializeParams = &compute.AttachedDiskInitializeParams{} if v, ok := d.GetOk(prefix + ".disk_name"); ok { disk.InitializeParams.DiskName = v.(string) } if v, ok := d.GetOk(prefix + ".disk_size_gb"); ok { disk.InitializeParams.DiskSizeGb = int64(v.(int)) } disk.InitializeParams.DiskType = "pd-standard" if v, ok := d.GetOk(prefix + ".disk_type"); ok { disk.InitializeParams.DiskType = v.(string) } if v, ok := d.GetOk(prefix + ".source_image"); ok { imageName := v.(string) imageUrl, err := resolveImage(config, imageName) if err != nil { return nil, fmt.Errorf( "Error resolving image name '%s': %s", imageName, err) } disk.InitializeParams.SourceImage = imageUrl } } if v, ok := d.GetOk(prefix + ".interface"); ok { disk.Interface = v.(string) } if v, ok := d.GetOk(prefix + ".mode"); ok { disk.Mode = v.(string) } if v, ok := d.GetOk(prefix + ".type"); ok { disk.Type = v.(string) } disks = append(disks, &disk) } return disks, nil } func buildNetworks(d *schema.ResourceData, meta interface{}) ([]*compute.NetworkInterface, error) { // Build up the list of networks config := meta.(*Config) project, err := getProject(d, config) if err != nil { return nil, err } networksCount := d.Get("network_interface.#").(int) networkInterfaces := make([]*compute.NetworkInterface, 0, networksCount) for i := 0; i < networksCount; i++ { prefix := fmt.Sprintf("network_interface.%d", i) var networkName, subnetworkName string if v, ok := d.GetOk(prefix + ".network"); ok { networkName = v.(string) } if v, ok := d.GetOk(prefix + ".subnetwork"); ok { subnetworkName = v.(string) } if networkName == "" && subnetworkName == "" { return nil, fmt.Errorf("network or subnetwork must be provided") } if networkName != "" && subnetworkName != "" { return nil, fmt.Errorf("network or subnetwork must not both be provided") } var networkLink, subnetworkLink string if networkName != "" { network, err := config.clientCompute.Networks.Get( project, networkName).Do() if err != nil { return nil, fmt.Errorf("Error referencing network '%s': %s", networkName, err) } networkLink = network.SelfLink } else { // lookup subnetwork link using region and subnetwork name region, err := getRegion(d, config) if err != nil { return nil, err } subnetwork, err := config.clientCompute.Subnetworks.Get( project, region, subnetworkName).Do() if err != nil { return nil, fmt.Errorf( "Error referencing subnetwork '%s' in region '%s': %s", subnetworkName, region, err) } subnetworkLink = subnetwork.SelfLink } // Build the networkInterface var iface compute.NetworkInterface iface.Network = networkLink iface.Subnetwork = subnetworkLink accessConfigsCount := d.Get(prefix + ".access_config.#").(int) iface.AccessConfigs = make([]*compute.AccessConfig, accessConfigsCount) for j := 0; j < accessConfigsCount; j++ { acPrefix := fmt.Sprintf("%s.access_config.%d", prefix, j) iface.AccessConfigs[j] = &compute.AccessConfig{ Type: "ONE_TO_ONE_NAT", NatIP: d.Get(acPrefix + ".nat_ip").(string), } } networkInterfaces = append(networkInterfaces, &iface) } return networkInterfaces, nil } func resourceComputeInstanceTemplateCreate(d *schema.ResourceData, meta interface{}) error { config := meta.(*Config) project, err := getProject(d, config) if err != nil { return err } instanceProperties := &compute.InstanceProperties{} instanceProperties.CanIpForward = d.Get("can_ip_forward").(bool) instanceProperties.Description = d.Get("instance_description").(string) instanceProperties.MachineType = d.Get("machine_type").(string) disks, err := buildDisks(d, meta) if err != nil { return err } instanceProperties.Disks = disks metadata, err := resourceInstanceMetadata(d) if err != nil { return err } instanceProperties.Metadata = metadata networks, err := buildNetworks(d, meta) if err != nil { return err } instanceProperties.NetworkInterfaces = networks instanceProperties.Scheduling = &compute.Scheduling{} instanceProperties.Scheduling.OnHostMaintenance = "MIGRATE" // Depreciated fields if v, ok := d.GetOk("automatic_restart"); ok { instanceProperties.Scheduling.AutomaticRestart = v.(bool) } if v, ok := d.GetOk("on_host_maintenance"); ok { instanceProperties.Scheduling.OnHostMaintenance = v.(string) } forceSendFieldsScheduling := make([]string, 0, 3) var hasSendMaintenance bool hasSendMaintenance = false if v, ok := d.GetOk("scheduling"); ok { _schedulings := v.([]interface{}) if len(_schedulings) > 1 { return fmt.Errorf("Error, at most one `scheduling` block can be defined") } _scheduling := _schedulings[0].(map[string]interface{}) if vp, okp := _scheduling["automatic_restart"]; okp { instanceProperties.Scheduling.AutomaticRestart = vp.(bool) forceSendFieldsScheduling = append(forceSendFieldsScheduling, "AutomaticRestart") } if vp, okp := _scheduling["on_host_maintenance"]; okp { instanceProperties.Scheduling.OnHostMaintenance = vp.(string) forceSendFieldsScheduling = append(forceSendFieldsScheduling, "OnHostMaintenance") hasSendMaintenance = true } if vp, okp := _scheduling["preemptible"]; okp { instanceProperties.Scheduling.Preemptible = vp.(bool) forceSendFieldsScheduling = append(forceSendFieldsScheduling, "Preemptible") if vp.(bool) && !hasSendMaintenance { instanceProperties.Scheduling.OnHostMaintenance = "TERMINATE" forceSendFieldsScheduling = append(forceSendFieldsScheduling, "OnHostMaintenance") } } } instanceProperties.Scheduling.ForceSendFields = forceSendFieldsScheduling serviceAccountsCount := d.Get("service_account.#").(int) serviceAccounts := make([]*compute.ServiceAccount, 0, serviceAccountsCount) for i := 0; i < serviceAccountsCount; i++ { prefix := fmt.Sprintf("service_account.%d", i) scopesCount := d.Get(prefix + ".scopes.#").(int) scopes := make([]string, 0, scopesCount) for j := 0; j < scopesCount; j++ { scope := d.Get(fmt.Sprintf(prefix+".scopes.%d", j)).(string) scopes = append(scopes, canonicalizeServiceScope(scope)) } email := "default" if v := d.Get(prefix + ".email"); v != nil { email = v.(string) } serviceAccount := &compute.ServiceAccount{ Email: email, Scopes: scopes, } serviceAccounts = append(serviceAccounts, serviceAccount) } instanceProperties.ServiceAccounts = serviceAccounts instanceProperties.Tags = resourceInstanceTags(d) var itName string if v, ok := d.GetOk("name"); ok { itName = v.(string) } else if v, ok := d.GetOk("name_prefix"); ok { itName = resource.PrefixedUniqueId(v.(string)) } else { itName = resource.UniqueId() } instanceTemplate := compute.InstanceTemplate{ Description: d.Get("description").(string), Properties: instanceProperties, Name: itName, } op, err := config.clientCompute.InstanceTemplates.Insert( project, &instanceTemplate).Do() if err != nil { return fmt.Errorf("Error creating instance: %s", err) } // Store the ID now d.SetId(instanceTemplate.Name) err = computeOperationWaitGlobal(config, op, project, "Creating Instance Template") if err != nil { return err } return resourceComputeInstanceTemplateRead(d, meta) } func flattenDisks(disks []*compute.AttachedDisk, d *schema.ResourceData) []map[string]interface{} { result := make([]map[string]interface{}, 0, len(disks)) for i, disk := range disks { diskMap := make(map[string]interface{}) if disk.InitializeParams != nil { var source_img = fmt.Sprintf("disk.%d.source_image", i) if d.Get(source_img) == nil || d.Get(source_img) == "" { sourceImageUrl := strings.Split(disk.InitializeParams.SourceImage, "/") diskMap["source_image"] = sourceImageUrl[len(sourceImageUrl)-1] } else { diskMap["source_image"] = d.Get(source_img) } diskMap["disk_type"] = disk.InitializeParams.DiskType diskMap["disk_name"] = disk.InitializeParams.DiskName diskMap["disk_size_gb"] = disk.InitializeParams.DiskSizeGb } diskMap["auto_delete"] = disk.AutoDelete diskMap["boot"] = disk.Boot diskMap["device_name"] = disk.DeviceName diskMap["interface"] = disk.Interface diskMap["source"] = disk.Source diskMap["mode"] = disk.Mode diskMap["type"] = disk.Type result = append(result, diskMap) } return result } func flattenNetworkInterfaces(networkInterfaces []*compute.NetworkInterface) ([]map[string]interface{}, string) { result := make([]map[string]interface{}, 0, len(networkInterfaces)) region := "" for _, networkInterface := range networkInterfaces { networkInterfaceMap := make(map[string]interface{}) if networkInterface.Network != "" { networkUrl := strings.Split(networkInterface.Network, "/") networkInterfaceMap["network"] = networkUrl[len(networkUrl)-1] } if networkInterface.Subnetwork != "" { subnetworkUrl := strings.Split(networkInterface.Subnetwork, "/") networkInterfaceMap["subnetwork"] = subnetworkUrl[len(subnetworkUrl)-1] region = subnetworkUrl[len(subnetworkUrl)-3] } if networkInterface.AccessConfigs != nil { accessConfigsMap := make([]map[string]interface{}, 0, len(networkInterface.AccessConfigs)) for _, accessConfig := range networkInterface.AccessConfigs { accessConfigMap := make(map[string]interface{}) accessConfigMap["nat_ip"] = accessConfig.NatIP accessConfigsMap = append(accessConfigsMap, accessConfigMap) } networkInterfaceMap["access_config"] = accessConfigsMap } result = append(result, networkInterfaceMap) } return result, region } func flattenScheduling(scheduling *compute.Scheduling) ([]map[string]interface{}, bool) { result := make([]map[string]interface{}, 0, 1) schedulingMap := make(map[string]interface{}) schedulingMap["automatic_restart"] = scheduling.AutomaticRestart schedulingMap["on_host_maintenance"] = scheduling.OnHostMaintenance schedulingMap["preemptible"] = scheduling.Preemptible result = append(result, schedulingMap) return result, scheduling.AutomaticRestart } func flattenServiceAccounts(serviceAccounts []*compute.ServiceAccount) []map[string]interface{} { result := make([]map[string]interface{}, 0, len(serviceAccounts)) for _, serviceAccount := range serviceAccounts { serviceAccountMap := make(map[string]interface{}) serviceAccountMap["email"] = serviceAccount.Email serviceAccountMap["scopes"] = serviceAccount.Scopes result = append(result, serviceAccountMap) } return result } func flattenMetadata(metadata *compute.Metadata) map[string]string { metadataMap := make(map[string]string) for _, item := range metadata.Items { metadataMap[item.Key] = *item.Value } return metadataMap } func resourceComputeInstanceTemplateRead(d *schema.ResourceData, meta interface{}) error { config := meta.(*Config) project, err := getProject(d, config) if err != nil { return err } instanceTemplate, err := config.clientCompute.InstanceTemplates.Get( project, d.Id()).Do() if err != nil { if gerr, ok := err.(*googleapi.Error); ok && gerr.Code == 404 { log.Printf("[WARN] Removing Instance Template %q because it's gone", d.Get("name").(string)) // The resource doesn't exist anymore d.SetId("") return nil } return fmt.Errorf("Error reading instance template: %s", err) } // Set the metadata fingerprint if there is one. if instanceTemplate.Properties.Metadata != nil { d.Set("metadata_fingerprint", instanceTemplate.Properties.Metadata.Fingerprint) } // Set the tags fingerprint if there is one. if instanceTemplate.Properties.Tags != nil { d.Set("tags_fingerprint", instanceTemplate.Properties.Tags.Fingerprint) } d.Set("self_link", instanceTemplate.SelfLink) d.Set("name", instanceTemplate.Name) if instanceTemplate.Properties.Disks != nil { d.Set("disk", flattenDisks(instanceTemplate.Properties.Disks, d)) } d.Set("description", instanceTemplate.Description) d.Set("machine_type", instanceTemplate.Properties.MachineType) d.Set("can_ip_forward", instanceTemplate.Properties.CanIpForward) if instanceTemplate.Properties.Metadata != nil { d.Set("metadata", flattenMetadata(instanceTemplate.Properties.Metadata)) } d.Set("instance_description", instanceTemplate.Properties.Description) d.Set("project", project) if instanceTemplate.Properties.NetworkInterfaces != nil { networkInterfaces, region := flattenNetworkInterfaces(instanceTemplate.Properties.NetworkInterfaces) d.Set("network_interface", networkInterfaces) // region is where to look up the subnetwork if there is one attached to the instance template if region != "" { d.Set("region", region) } } if instanceTemplate.Properties.Scheduling != nil { scheduling, autoRestart := flattenScheduling(instanceTemplate.Properties.Scheduling) d.Set("scheduling", scheduling) d.Set("automatic_restart", autoRestart) } if instanceTemplate.Properties.Tags != nil { d.Set("tags", instanceTemplate.Properties.Tags.Items) } if instanceTemplate.Properties.ServiceAccounts != nil { d.Set("service_account", flattenServiceAccounts(instanceTemplate.Properties.ServiceAccounts)) } return nil } func resourceComputeInstanceTemplateDelete(d *schema.ResourceData, meta interface{}) error { config := meta.(*Config) project, err := getProject(d, config) if err != nil { return err } op, err := config.clientCompute.InstanceTemplates.Delete( project, d.Id()).Do() if err != nil { return fmt.Errorf("Error deleting instance template: %s", err) } err = computeOperationWaitGlobal(config, op, project, "Deleting Instance Template") if err != nil { return err } d.SetId("") return nil }