github.com/mohanarpit/terraform@v0.6.16-0.20160909104007-291f29853544/builtin/providers/google/resource_compute_network.go (about)

     1  package google
     2  
     3  import (
     4  	"fmt"
     5  	"log"
     6  
     7  	"github.com/hashicorp/terraform/helper/schema"
     8  	"google.golang.org/api/compute/v1"
     9  	"google.golang.org/api/googleapi"
    10  )
    11  
    12  func resourceComputeNetwork() *schema.Resource {
    13  	return &schema.Resource{
    14  		Create: resourceComputeNetworkCreate,
    15  		Read:   resourceComputeNetworkRead,
    16  		Delete: resourceComputeNetworkDelete,
    17  
    18  		Schema: map[string]*schema.Schema{
    19  			"name": &schema.Schema{
    20  				Type:     schema.TypeString,
    21  				Required: true,
    22  				ForceNew: true,
    23  			},
    24  
    25  			"auto_create_subnetworks": &schema.Schema{
    26  				Type:     schema.TypeBool,
    27  				Optional: true,
    28  				ForceNew: true,
    29  				/* Ideally this would default to true as per the API, but that would cause
    30  				   existing Terraform configs which have not been updated to report this as
    31  				   a change. Perhaps we can bump this for a minor release bump rather than
    32  				   a point release.
    33  				Default: false, */
    34  				ConflictsWith: []string{"ipv4_range"},
    35  			},
    36  
    37  			"description": &schema.Schema{
    38  				Type:     schema.TypeString,
    39  				Optional: true,
    40  				ForceNew: true,
    41  			},
    42  
    43  			"gateway_ipv4": &schema.Schema{
    44  				Type:     schema.TypeString,
    45  				Computed: true,
    46  			},
    47  
    48  			"ipv4_range": &schema.Schema{
    49  				Type:       schema.TypeString,
    50  				Optional:   true,
    51  				ForceNew:   true,
    52  				Deprecated: "Please use google_compute_subnetwork resources instead.",
    53  			},
    54  
    55  			"project": &schema.Schema{
    56  				Type:     schema.TypeString,
    57  				Optional: true,
    58  				ForceNew: true,
    59  			},
    60  
    61  			"self_link": &schema.Schema{
    62  				Type:     schema.TypeString,
    63  				Computed: true,
    64  			},
    65  		},
    66  	}
    67  }
    68  
    69  func resourceComputeNetworkCreate(d *schema.ResourceData, meta interface{}) error {
    70  	config := meta.(*Config)
    71  
    72  	project, err := getProject(d, config)
    73  	if err != nil {
    74  		return err
    75  	}
    76  
    77  	//
    78  	// Possible modes:
    79  	// - 1 Legacy mode - Create a network in the legacy mode. ipv4_range is set. auto_create_subnetworks must not be
    80  	//     set (enforced by ConflictsWith schema attribute)
    81  	// - 2 Distributed Mode - Create a new generation network that supports subnetworks:
    82  	//   - 2.a - Auto subnet mode - auto_create_subnetworks = true, Google will generate 1 subnetwork per region
    83  	//   - 2.b - Custom subnet mode - auto_create_subnetworks = false & ipv4_range not set,
    84  	//
    85  	autoCreateSubnetworks := d.Get("auto_create_subnetworks").(bool)
    86  
    87  	// Build the network parameter
    88  	network := &compute.Network{
    89  		Name: d.Get("name").(string),
    90  		AutoCreateSubnetworks: autoCreateSubnetworks,
    91  		Description:           d.Get("description").(string),
    92  	}
    93  
    94  	if v, ok := d.GetOk("ipv4_range"); ok {
    95  		log.Printf("[DEBUG] Setting IPv4Range (%#v) for legacy network mode", v.(string))
    96  		network.IPv4Range = v.(string)
    97  	} else {
    98  		// custom subnet mode, so make sure AutoCreateSubnetworks field is included in request otherwise
    99  		// google will create a network in legacy mode.
   100  		network.ForceSendFields = []string{"AutoCreateSubnetworks"}
   101  	}
   102  
   103  	log.Printf("[DEBUG] Network insert request: %#v", network)
   104  	op, err := config.clientCompute.Networks.Insert(
   105  		project, network).Do()
   106  	if err != nil {
   107  		return fmt.Errorf("Error creating network: %s", err)
   108  	}
   109  
   110  	// It probably maybe worked, so store the ID now
   111  	d.SetId(network.Name)
   112  
   113  	err = computeOperationWaitGlobal(config, op, project, "Creating Network")
   114  	if err != nil {
   115  		return err
   116  	}
   117  
   118  	return resourceComputeNetworkRead(d, meta)
   119  }
   120  
   121  func resourceComputeNetworkRead(d *schema.ResourceData, meta interface{}) error {
   122  	config := meta.(*Config)
   123  
   124  	project, err := getProject(d, config)
   125  	if err != nil {
   126  		return err
   127  	}
   128  
   129  	network, err := config.clientCompute.Networks.Get(
   130  		project, d.Id()).Do()
   131  	if err != nil {
   132  		if gerr, ok := err.(*googleapi.Error); ok && gerr.Code == 404 {
   133  			log.Printf("[WARN] Removing Network %q because it's gone", d.Get("name").(string))
   134  			// The resource doesn't exist anymore
   135  			d.SetId("")
   136  
   137  			return nil
   138  		}
   139  
   140  		return fmt.Errorf("Error reading network: %s", err)
   141  	}
   142  
   143  	d.Set("gateway_ipv4", network.GatewayIPv4)
   144  	d.Set("self_link", network.SelfLink)
   145  
   146  	return nil
   147  }
   148  
   149  func resourceComputeNetworkDelete(d *schema.ResourceData, meta interface{}) error {
   150  	config := meta.(*Config)
   151  
   152  	project, err := getProject(d, config)
   153  	if err != nil {
   154  		return err
   155  	}
   156  
   157  	// Delete the network
   158  	op, err := config.clientCompute.Networks.Delete(
   159  		project, d.Id()).Do()
   160  	if err != nil {
   161  		return fmt.Errorf("Error deleting network: %s", err)
   162  	}
   163  
   164  	err = computeOperationWaitGlobal(config, op, project, "Deleting Network")
   165  	if err != nil {
   166  		return err
   167  	}
   168  
   169  	d.SetId("")
   170  	return nil
   171  }