terraform/builtin/providers/azurerm/resource_arm_virtual_networ...

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package azurerm
import (
"fmt"
"log"
"net/http"
"time"
"github.com/Azure/azure-sdk-for-go/arm/network"
"github.com/hashicorp/terraform/helper/hashcode"
"github.com/hashicorp/terraform/helper/resource"
"github.com/hashicorp/terraform/helper/schema"
)
func resourceArmVirtualNetwork() *schema.Resource {
return &schema.Resource{
Create: resourceArmVirtualNetworkCreate,
Read: resourceArmVirtualNetworkRead,
Update: resourceArmVirtualNetworkCreate,
Delete: resourceArmVirtualNetworkDelete,
Schema: map[string]*schema.Schema{
"name": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"address_space": &schema.Schema{
Type: schema.TypeList,
Required: true,
Elem: &schema.Schema{Type: schema.TypeString},
},
"dns_servers": &schema.Schema{
Type: schema.TypeList,
Optional: true,
Elem: &schema.Schema{
Type: schema.TypeString,
},
},
"subnet": &schema.Schema{
Type: schema.TypeSet,
Required: true,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"name": &schema.Schema{
Type: schema.TypeString,
Required: true,
},
"address_prefix": &schema.Schema{
Type: schema.TypeString,
Required: true,
},
"security_group": &schema.Schema{
Type: schema.TypeString,
Optional: true,
},
},
},
Set: resourceAzureSubnetHash,
},
"location": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
StateFunc: azureRMNormalizeLocation,
},
"resource_group_name": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
},
}
}
func resourceArmVirtualNetworkCreate(d *schema.ResourceData, meta interface{}) error {
client := meta.(*ArmClient)
vnetClient := client.vnetClient
log.Printf("[INFO] preparing arguments for Azure ARM virtual network creation.")
name := d.Get("name").(string)
location := d.Get("location").(string)
resGroup := d.Get("resource_group_name").(string)
vnet := network.VirtualNetwork{
Name: &name,
Location: &location,
Properties: getVirtualNetworkProperties(d),
}
resp, err := vnetClient.CreateOrUpdate(resGroup, name, vnet)
if err != nil {
return err
}
d.SetId(*resp.ID)
log.Printf("[DEBUG] Waiting for Virtual Network (%s) to become available", name)
stateConf := &resource.StateChangeConf{
Pending: []string{"Accepted", "Updating"},
Target: "Succeeded",
Refresh: virtualNetworkStateRefreshFunc(client, resGroup, name),
Timeout: 10 * time.Minute,
}
if _, err := stateConf.WaitForState(); err != nil {
return fmt.Errorf("Error waiting for Virtual Network (%s) to become available: %s", name, err)
}
return resourceArmVirtualNetworkRead(d, meta)
}
func resourceArmVirtualNetworkRead(d *schema.ResourceData, meta interface{}) error {
vnetClient := meta.(*ArmClient).vnetClient
id, err := parseAzureResourceID(d.Id())
if err != nil {
return err
}
resGroup := id.ResourceGroup
name := id.Path["virtualNetworks"]
resp, err := vnetClient.Get(resGroup, name)
if resp.StatusCode == http.StatusNotFound {
d.SetId("")
return nil
}
if err != nil {
return fmt.Errorf("Error making Read request on Azure virtual network %s: %s", name, err)
}
vnet := *resp.Properties
// update appropriate values
d.Set("address_space", vnet.AddressSpace.AddressPrefixes)
subnets := &schema.Set{
F: resourceAzureSubnetHash,
}
for _, subnet := range *vnet.Subnets {
s := map[string]interface{}{}
s["name"] = *subnet.Name
s["address_prefix"] = *subnet.Properties.AddressPrefix
if subnet.Properties.NetworkSecurityGroup != nil {
s["security_group"] = *subnet.Properties.NetworkSecurityGroup.ID
}
subnets.Add(s)
}
d.Set("subnet", subnets)
dnses := []string{}
for _, dns := range *vnet.DhcpOptions.DNSServers {
dnses = append(dnses, dns)
}
d.Set("dns_servers", dnses)
return nil
}
func resourceArmVirtualNetworkDelete(d *schema.ResourceData, meta interface{}) error {
vnetClient := meta.(*ArmClient).vnetClient
id, err := parseAzureResourceID(d.Id())
if err != nil {
return err
}
resGroup := id.ResourceGroup
name := id.Path["virtualNetworks"]
_, err = vnetClient.Delete(resGroup, name)
return err
}
func getVirtualNetworkProperties(d *schema.ResourceData) *network.VirtualNetworkPropertiesFormat {
// first; get address space prefixes:
prefixes := []string{}
for _, prefix := range d.Get("address_space").([]interface{}) {
prefixes = append(prefixes, prefix.(string))
}
// then; the dns servers:
dnses := []string{}
for _, dns := range d.Get("dns_servers").([]interface{}) {
dnses = append(dnses, dns.(string))
}
// then; the subnets:
subnets := []network.Subnet{}
if subs := d.Get("subnet").(*schema.Set); subs.Len() > 0 {
for _, subnet := range subs.List() {
subnet := subnet.(map[string]interface{})
name := subnet["name"].(string)
prefix := subnet["address_prefix"].(string)
secGroup := subnet["security_group"].(string)
var subnetObj network.Subnet
subnetObj.Name = &name
subnetObj.Properties = &network.SubnetPropertiesFormat{}
subnetObj.Properties.AddressPrefix = &prefix
if secGroup != "" {
subnetObj.Properties.NetworkSecurityGroup = &network.SubResource{
ID: &secGroup,
}
}
subnets = append(subnets, subnetObj)
}
}
// finally; return the struct:
return &network.VirtualNetworkPropertiesFormat{
AddressSpace: &network.AddressSpace{
AddressPrefixes: &prefixes,
},
DhcpOptions: &network.DhcpOptions{
DNSServers: &dnses,
},
Subnets: &subnets,
}
}
func resourceAzureSubnetHash(v interface{}) int {
m := v.(map[string]interface{})
subnet := m["name"].(string) + m["address_prefix"].(string)
if securityGroup, present := m["security_group"]; present {
subnet = subnet + securityGroup.(string)
}
return hashcode.String(subnet)
}
func virtualNetworkStateRefreshFunc(client *ArmClient, resourceGroupName string, networkName string) resource.StateRefreshFunc {
return func() (interface{}, string, error) {
res, err := client.vnetClient.Get(resourceGroupName, networkName)
if err != nil {
return nil, "", fmt.Errorf("Error issuing read request in virtualNetworkStateRefreshFunc to Azure ARM for virtual network '%s' (RG: '%s'): %s", networkName, resourceGroupName, err)
}
return res, *res.Properties.ProvisioningState, nil
}
}