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resource_arm_subnet_network_security_group_association.go
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resource_arm_subnet_network_security_group_association.go
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package azurerm
import (
"fmt"
"log"
"github.com/Azure/azure-sdk-for-go/services/network/mgmt/2018-08-01/network"
"github.com/hashicorp/terraform/helper/schema"
"github.com/terraform-providers/terraform-provider-azurerm/azurerm/helpers/azure"
"github.com/terraform-providers/terraform-provider-azurerm/azurerm/helpers/tf"
"github.com/terraform-providers/terraform-provider-azurerm/azurerm/utils"
)
func resourceArmSubnetNetworkSecurityGroupAssociation() *schema.Resource {
return &schema.Resource{
Create: resourceArmSubnetNetworkSecurityGroupAssociationCreate,
Read: resourceArmSubnetNetworkSecurityGroupAssociationRead,
Delete: resourceArmSubnetNetworkSecurityGroupAssociationDelete,
Importer: &schema.ResourceImporter{
State: schema.ImportStatePassthrough,
},
Schema: map[string]*schema.Schema{
"subnet_id": {
Type: schema.TypeString,
Required: true,
ForceNew: true,
ValidateFunc: azure.ValidateResourceID,
},
"network_security_group_id": {
Type: schema.TypeString,
Required: true,
ForceNew: true,
ValidateFunc: azure.ValidateResourceID,
},
},
}
}
func resourceArmSubnetNetworkSecurityGroupAssociationCreate(d *schema.ResourceData, meta interface{}) error {
client := meta.(*ArmClient).subnetClient
ctx := meta.(*ArmClient).StopContext
log.Printf("[INFO] preparing arguments for Subnet <-> Network Security Group Association creation.")
subnetId := d.Get("subnet_id").(string)
networkSecurityGroupId := d.Get("network_security_group_id").(string)
parsedSubnetId, err := parseAzureResourceID(subnetId)
if err != nil {
return err
}
networkSecurityGroupName, err := parseNetworkSecurityGroupName(networkSecurityGroupId)
if err != nil {
return err
}
azureRMLockByName(networkSecurityGroupName, networkSecurityGroupResourceName)
defer azureRMUnlockByName(networkSecurityGroupName, networkSecurityGroupResourceName)
subnetName := parsedSubnetId.Path["subnets"]
virtualNetworkName := parsedSubnetId.Path["virtualNetworks"]
resourceGroup := parsedSubnetId.ResourceGroup
azureRMLockByName(virtualNetworkName, virtualNetworkResourceName)
defer azureRMUnlockByName(virtualNetworkName, virtualNetworkResourceName)
subnet, err := client.Get(ctx, resourceGroup, virtualNetworkName, subnetName, "")
if err != nil {
if utils.ResponseWasNotFound(subnet.Response) {
return fmt.Errorf("Subnet %q (Virtual Network %q / Resource Group %q) was not found!", subnetName, virtualNetworkName, resourceGroup)
}
return fmt.Errorf("Error retrieving Subnet %q (Virtual Network %q / Resource Group %q): %+v", subnetName, virtualNetworkName, resourceGroup, err)
}
if props := subnet.SubnetPropertiesFormat; props != nil {
if requireResourcesToBeImported {
if nsg := props.NetworkSecurityGroup; nsg != nil {
// we're intentionally not checking the ID - if there's a NSG, it needs to be imported
if nsg.ID != nil && subnet.ID != nil {
return tf.ImportAsExistsError("azurerm_subnet_network_security_group_association", *subnet.ID)
}
}
}
props.NetworkSecurityGroup = &network.SecurityGroup{
ID: utils.String(networkSecurityGroupId),
}
}
future, err := client.CreateOrUpdate(ctx, resourceGroup, virtualNetworkName, subnetName, subnet)
if err != nil {
return fmt.Errorf("Error updating Route Table Association for Subnet %q (Virtual Network %q / Resource Group %q): %+v", subnetName, virtualNetworkName, resourceGroup, err)
}
if err = future.WaitForCompletionRef(ctx, client.Client); err != nil {
return fmt.Errorf("Error waiting for completion of Route Table Association for Subnet %q (VN %q / Resource Group %q): %+v", subnetName, virtualNetworkName, resourceGroup, err)
}
read, err := client.Get(ctx, resourceGroup, virtualNetworkName, subnetName, "")
if err != nil {
return fmt.Errorf("Error retrieving Subnet %q (Virtual Network %q / Resource Group %q): %+v", subnetName, virtualNetworkName, resourceGroup, err)
}
d.SetId(*read.ID)
return resourceArmSubnetNetworkSecurityGroupAssociationRead(d, meta)
}
func resourceArmSubnetNetworkSecurityGroupAssociationRead(d *schema.ResourceData, meta interface{}) error {
client := meta.(*ArmClient).subnetClient
ctx := meta.(*ArmClient).StopContext
id, err := parseAzureResourceID(d.Id())
if err != nil {
return err
}
resourceGroup := id.ResourceGroup
virtualNetworkName := id.Path["virtualNetworks"]
subnetName := id.Path["subnets"]
resp, err := client.Get(ctx, resourceGroup, virtualNetworkName, subnetName, "")
if err != nil {
if utils.ResponseWasNotFound(resp.Response) {
log.Printf("[DEBUG] Subnet %q (Virtual Network %q / Resource Group %q) could not be found - removing from state!", subnetName, virtualNetworkName, resourceGroup)
d.SetId("")
return nil
}
return fmt.Errorf("Error retrieving Subnet %q (Virtual Network %q / Resource Group %q): %+v", subnetName, virtualNetworkName, resourceGroup, err)
}
props := resp.SubnetPropertiesFormat
if props == nil {
return fmt.Errorf("Error: `properties` was nil for Subnet %q (Virtual Network %q / Resource Group %q)", subnetName, virtualNetworkName, resourceGroup)
}
securityGroup := props.NetworkSecurityGroup
if securityGroup == nil {
log.Printf("[DEBUG] Subnet %q (Virtual Network %q / Resource Group %q) doesn't have a Network Security Group - removing from state!", subnetName, virtualNetworkName, resourceGroup)
d.SetId("")
return nil
}
d.Set("subnet_id", resp.ID)
d.Set("network_security_group_id", securityGroup.ID)
return nil
}
func resourceArmSubnetNetworkSecurityGroupAssociationDelete(d *schema.ResourceData, meta interface{}) error {
client := meta.(*ArmClient).subnetClient
ctx := meta.(*ArmClient).StopContext
id, err := parseAzureResourceID(d.Id())
if err != nil {
return err
}
resourceGroup := id.ResourceGroup
virtualNetworkName := id.Path["virtualNetworks"]
subnetName := id.Path["subnets"]
// retrieve the subnet
read, err := client.Get(ctx, resourceGroup, virtualNetworkName, subnetName, "")
if err != nil {
if utils.ResponseWasNotFound(read.Response) {
log.Printf("[DEBUG] Subnet %q (Virtual Network %q / Resource Group %q) could not be found - removing from state!", subnetName, virtualNetworkName, resourceGroup)
return nil
}
return fmt.Errorf("Error retrieving Subnet %q (Virtual Network %q / Resource Group %q): %+v", subnetName, virtualNetworkName, resourceGroup, err)
}
props := read.SubnetPropertiesFormat
if props == nil {
return fmt.Errorf("`Properties` was nil for Subnet %q (Virtual Network %q / Resource Group %q)", subnetName, virtualNetworkName, resourceGroup)
}
if props.NetworkSecurityGroup == nil || props.NetworkSecurityGroup.ID == nil {
log.Printf("[DEBUG] Subnet %q (Virtual Network %q / Resource Group %q) has no Network Security Group - removing from state!", subnetName, virtualNetworkName, resourceGroup)
return nil
}
// once we have the network security group id to lock on, lock on that
networkSecurityGroupName, err := parseNetworkSecurityGroupName(*props.NetworkSecurityGroup.ID)
if err != nil {
return err
}
azureRMLockByName(networkSecurityGroupName, networkSecurityGroupResourceName)
defer azureRMUnlockByName(networkSecurityGroupName, networkSecurityGroupResourceName)
azureRMLockByName(virtualNetworkName, virtualNetworkResourceName)
defer azureRMUnlockByName(virtualNetworkName, virtualNetworkResourceName)
azureRMLockByName(subnetName, subnetResourceName)
defer azureRMUnlockByName(subnetName, subnetResourceName)
// then re-retrieve it to ensure we've got the latest state
read, err = client.Get(ctx, resourceGroup, virtualNetworkName, subnetName, "")
if err != nil {
if utils.ResponseWasNotFound(read.Response) {
log.Printf("[DEBUG] Subnet %q (Virtual Network %q / Resource Group %q) could not be found - removing from state!", subnetName, virtualNetworkName, resourceGroup)
return nil
}
return fmt.Errorf("Error retrieving Subnet %q (Virtual Network %q / Resource Group %q): %+v", subnetName, virtualNetworkName, resourceGroup, err)
}
read.SubnetPropertiesFormat.NetworkSecurityGroup = nil
future, err := client.CreateOrUpdate(ctx, resourceGroup, virtualNetworkName, subnetName, read)
if err != nil {
return fmt.Errorf("Error removing Network Security Group Association from Subnet %q (Virtual Network %q / Resource Group %q): %+v", subnetName, virtualNetworkName, resourceGroup, err)
}
if err = future.WaitForCompletionRef(ctx, client.Client); err != nil {
return fmt.Errorf("Error waiting for removal of Network Security Group Association from Subnet %q (Virtual Network %q / Resource Group %q): %+v", subnetName, virtualNetworkName, resourceGroup, err)
}
return nil
}