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

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package azurerm
import (
"fmt"
"log"
"net/http"
"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,
Importer: &schema.ResourceImporter{
State: schema.ImportStatePassthrough,
},
Schema: map[string]*schema.Schema{
"name": {
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"address_space": {
Type: schema.TypeList,
Required: true,
Elem: &schema.Schema{
Type: schema.TypeString,
},
},
"dns_servers": {
Type: schema.TypeList,
Optional: true,
Elem: &schema.Schema{
Type: schema.TypeString,
},
},
"subnet": {
Type: schema.TypeSet,
Optional: true,
Computed: true,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"name": {
Type: schema.TypeString,
Required: true,
},
"address_prefix": {
Type: schema.TypeString,
Required: true,
},
"security_group": {
Type: schema.TypeString,
Optional: true,
},
},
},
Set: resourceAzureSubnetHash,
},
"location": locationSchema(),
"resource_group_name": {
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"tags": tagsSchema(),
},
}
}
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)
tags := d.Get("tags").(map[string]interface{})
vnet := network.VirtualNetwork{
Name: &name,
Location: &location,
Properties: getVirtualNetworkProperties(d),
Tags: expandTags(tags),
}
_, err := vnetClient.CreateOrUpdate(resGroup, name, vnet, make(chan struct{}))
if err != nil {
return err
}
read, err := vnetClient.Get(resGroup, name, "")
if err != nil {
return err
}
if read.ID == nil {
return fmt.Errorf("Cannot read Virtual Network %s (resource group %s) ID", name, resGroup)
}
d.SetId(*read.ID)
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, "")
provider/azurerm: Reordering the checks after an Azure API Get We are receiving suggestions of a panic as follows: ``` 2016/09/01 07:21:55 [DEBUG] plugin: terraform: panic: runtime error: invalid memory address or nil pointer dereference 2016/09/01 07:21:55 [DEBUG] plugin: terraform: [signal SIGSEGV: segmentation violation code=0x1 addr=0x10 pc=0xa3170f] 2016/09/01 07:21:55 [DEBUG] plugin: terraform: 2016/09/01 07:21:55 [DEBUG] plugin: terraform: goroutine 114 [running]: 2016/09/01 07:21:55 [DEBUG] plugin: terraform: panic(0x27f4e60, 0xc4200100e0) 2016/09/01 07:21:55 [DEBUG] plugin: terraform: /opt/go/src/runtime/panic.go:500 +0x1a1 2016/09/01 07:21:55 [DEBUG] plugin: terraform: github.com/hashicorp/terraform/builtin/providers/azurerm.resourceArmVirtualMachineRead(0xc4206d8060, 0x2995620, 0xc4204d0000, 0x0, 0x17) 2016/09/01 07:21:55 [DEBUG] plugin: terraform: /opt/gopath/src/github.com/hashicorp/terraform/builtin/providers/azurerm/resource_arm_virtual_machine.go:488 +0x1ff 2016/09/01 07:21:55 [DEBUG] plugin: terraform: github.com/hashicorp/terraform/helper/schema.(*Resource).Refresh(0xc420017a40, 0xc42040c780, 0x2995620, 0xc4204d0000, 0xc42019c990, 0x1, 0x0) ``` This is because the code is as follows: ``` resp, err := client.Get(resGroup, vnetName, name) if resp.StatusCode == http.StatusNotFound { d.SetId("") return nil } if err != nil { return fmt.Errorf("Error making Read request on Azure virtual network peering %s: %s", name, err) } ``` When a request throws an error, the response object isn't valid. Therefore, we need to flip that code to check the error first ``` resp, err := client.Get(resGroup, vnetName, name) if err != nil { return fmt.Errorf("Error making Read request on Azure virtual network peering %s: %s", name, err) } if resp.StatusCode == http.StatusNotFound { d.SetId("") return nil } ```
2016-09-01 16:31:42 +02:00
if err != nil {
if resp.StatusCode == http.StatusNotFound {
d.SetId("")
return nil
}
provider/azurerm: Reordering the checks after an Azure API Get We are receiving suggestions of a panic as follows: ``` 2016/09/01 07:21:55 [DEBUG] plugin: terraform: panic: runtime error: invalid memory address or nil pointer dereference 2016/09/01 07:21:55 [DEBUG] plugin: terraform: [signal SIGSEGV: segmentation violation code=0x1 addr=0x10 pc=0xa3170f] 2016/09/01 07:21:55 [DEBUG] plugin: terraform: 2016/09/01 07:21:55 [DEBUG] plugin: terraform: goroutine 114 [running]: 2016/09/01 07:21:55 [DEBUG] plugin: terraform: panic(0x27f4e60, 0xc4200100e0) 2016/09/01 07:21:55 [DEBUG] plugin: terraform: /opt/go/src/runtime/panic.go:500 +0x1a1 2016/09/01 07:21:55 [DEBUG] plugin: terraform: github.com/hashicorp/terraform/builtin/providers/azurerm.resourceArmVirtualMachineRead(0xc4206d8060, 0x2995620, 0xc4204d0000, 0x0, 0x17) 2016/09/01 07:21:55 [DEBUG] plugin: terraform: /opt/gopath/src/github.com/hashicorp/terraform/builtin/providers/azurerm/resource_arm_virtual_machine.go:488 +0x1ff 2016/09/01 07:21:55 [DEBUG] plugin: terraform: github.com/hashicorp/terraform/helper/schema.(*Resource).Refresh(0xc420017a40, 0xc42040c780, 0x2995620, 0xc4204d0000, 0xc42019c990, 0x1, 0x0) ``` This is because the code is as follows: ``` resp, err := client.Get(resGroup, vnetName, name) if resp.StatusCode == http.StatusNotFound { d.SetId("") return nil } if err != nil { return fmt.Errorf("Error making Read request on Azure virtual network peering %s: %s", name, err) } ``` When a request throws an error, the response object isn't valid. Therefore, we need to flip that code to check the error first ``` resp, err := client.Get(resGroup, vnetName, name) if err != nil { return fmt.Errorf("Error making Read request on Azure virtual network peering %s: %s", name, err) } if resp.StatusCode == http.StatusNotFound { d.SetId("") return nil } ```
2016-09-01 16:31:42 +02:00
return fmt.Errorf("Error making Read request on Azure virtual network %s: %s", name, err)
}
vnet := *resp.Properties
// update appropriate values
d.Set("resource_group_name", resGroup)
d.Set("name", resp.Name)
d.Set("location", resp.Location)
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)
if vnet.DhcpOptions != nil && vnet.DhcpOptions.DNSServers != nil {
dnses := []string{}
for _, dns := range *vnet.DhcpOptions.DNSServers {
dnses = append(dnses, dns)
}
d.Set("dns_servers", dnses)
}
flattenAndSetTags(d, resp.Tags)
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, make(chan struct{}))
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.SecurityGroup{
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
}
}