data_source_google_compute_forwarding_rules.go

// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: MPL-2.0
package compute

import (
	"fmt"

	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
	"github.com/hashicorp/terraform-provider-google/google/tpgresource"
	transport_tpg "github.com/hashicorp/terraform-provider-google/google/transport"
)

func DataSourceGoogleComputeForwardingRules() *schema.Resource {
	return &schema.Resource{
		Read: dataSourceGoogleComputeForwardingRulesRead,

		Schema: map[string]*schema.Schema{

			"project": {
				Type:     schema.TypeString,
				Optional: true,
			},

			"region": {
				Type:     schema.TypeString,
				Optional: true,
			},

			"rules": {
				Type:     schema.TypeList,
				Computed: true,
				Elem: &schema.Resource{
					Schema: tpgresource.DatasourceSchemaFromResourceSchema(ResourceComputeForwardingRule().Schema),
				},
			},
		},
	}
}

func dataSourceGoogleComputeForwardingRulesRead(d *schema.ResourceData, meta interface{}) error {
	config := meta.(*transport_tpg.Config)
	userAgent, err := tpgresource.GenerateUserAgentString(d, config.UserAgent)
	if err != nil {
		return err
	}

	project, err := tpgresource.GetProject(d, config)
	if err != nil {
		return err
	}

	region, err := tpgresource.GetRegion(d, config)
	if err != nil {
		return err
	}

	id := fmt.Sprintf("projects/%s/regions/%s/forwardingRules", project, region)
	d.SetId(id)

	forwardingRulesAggregatedList, err := config.NewComputeClient(userAgent).ForwardingRules.List(project, region).Do()
	if err != nil {
		return transport_tpg.HandleNotFoundError(err, d, fmt.Sprintf("Forwarding Rules Not Found : %s", project))
	}

	forwardingRules := make([]map[string]interface{}, 0, len(forwardingRulesAggregatedList.Items))

	for i := 0; i < len(forwardingRulesAggregatedList.Items); i++ {
		rule := forwardingRulesAggregatedList.Items[i]
		mappedData := map[string]interface{}{
			"name":                 rule.Name,
			"network":              rule.Network,
			"subnetwork":           rule.Subnetwork,
			"backend_service":      rule.BackendService,
			"ip_address":           rule.IPAddress,
			"service_name":         rule.ServiceName,
			"service_label":        rule.ServiceLabel,
			"description":          rule.Description,
			"self_link":            rule.SelfLink,
			"labels":               rule.Labels,
			"ports":                rule.Ports,
			"region":               rule.Region,
			"target":               rule.Target,
			"ip_version":           rule.IpVersion,
			"network_tier":         rule.NetworkTier,
			"base_forwarding_rule": rule.BaseForwardingRule,
			"port_range":           rule.PortRange,
		}
		forwardingRules = append(forwardingRules, mappedData)
	}

	if err := d.Set("rules", forwardingRules); err != nil {
		return fmt.Errorf("Error setting the forwarding rules names: %s", err)
	}

	if err := d.Set("project", project); err != nil {
		return fmt.Errorf("Error setting the network names: %s", err)
	}

	if err := d.Set("region", region); err != nil {
		return fmt.Errorf("Error setting the region: %s", err)
	}

	return nil
}