654 lines
17 KiB
Go
654 lines
17 KiB
Go
package azure
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import (
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"bytes"
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"encoding/base64"
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"fmt"
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"log"
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"github.com/hashicorp/terraform/helper/hashcode"
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"github.com/hashicorp/terraform/helper/schema"
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"github.com/svanharmelen/azure-sdk-for-go/management"
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"github.com/svanharmelen/azure-sdk-for-go/management/hostedservice"
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"github.com/svanharmelen/azure-sdk-for-go/management/osimage"
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"github.com/svanharmelen/azure-sdk-for-go/management/virtualmachine"
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"github.com/svanharmelen/azure-sdk-for-go/management/virtualmachineimage"
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"github.com/svanharmelen/azure-sdk-for-go/management/vmutils"
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)
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const (
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linux = "Linux"
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windows = "Windows"
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osDiskBlobStorageURL = "http://%s.blob.core.windows.net/vhds/%s.vhd"
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)
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func resourceAzureInstance() *schema.Resource {
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return &schema.Resource{
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Create: resourceAzureInstanceCreate,
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Read: resourceAzureInstanceRead,
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Update: resourceAzureInstanceUpdate,
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Delete: resourceAzureInstanceDelete,
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Schema: map[string]*schema.Schema{
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"name": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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ForceNew: true,
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},
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"description": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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Computed: true,
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ForceNew: true,
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},
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"image": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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ForceNew: true,
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},
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"size": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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},
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"subnet": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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Computed: true,
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ForceNew: true,
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},
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"virtual_network": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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ForceNew: true,
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},
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"storage": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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ForceNew: true,
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},
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"reverse_dns": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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ForceNew: true,
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},
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"location": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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ForceNew: true,
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},
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"automatic_updates": &schema.Schema{
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Type: schema.TypeBool,
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Optional: true,
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ForceNew: true,
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},
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"time_zone": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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ForceNew: true,
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},
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"username": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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ForceNew: true,
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},
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"password": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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ForceNew: true,
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},
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"ssh_key_thumbprint": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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ForceNew: true,
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},
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"endpoint": &schema.Schema{
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Type: schema.TypeSet,
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Optional: true,
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Computed: true,
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Elem: &schema.Resource{
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Schema: map[string]*schema.Schema{
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"name": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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},
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"protocol": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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},
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"public_port": &schema.Schema{
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Type: schema.TypeInt,
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Required: true,
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},
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"private_port": &schema.Schema{
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Type: schema.TypeInt,
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Required: true,
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},
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},
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},
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Set: resourceAzureEndpointHash,
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},
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"security_group": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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Computed: true,
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},
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"ip_address": &schema.Schema{
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Type: schema.TypeString,
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Computed: true,
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},
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"vip_address": &schema.Schema{
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Type: schema.TypeString,
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Computed: true,
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},
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},
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}
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}
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func resourceAzureInstanceCreate(d *schema.ResourceData, meta interface{}) (err error) {
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mc := meta.(*management.Client)
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name := d.Get("name").(string)
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// Compute/set the description
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description := d.Get("description").(string)
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if description == "" {
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description = name
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}
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// Retrieve the needed details of the image
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configureForImage, osType, err := retrieveImageDetails(
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mc,
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d.Get("image").(string),
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d.Get("storage").(string),
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)
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if err != nil {
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return err
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}
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// Verify if we have all required parameters
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if err := verifyInstanceParameters(d, osType); err != nil {
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return err
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}
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p := hostedservice.CreateHostedServiceParameters{
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ServiceName: name,
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Label: base64.StdEncoding.EncodeToString([]byte(name)),
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Description: fmt.Sprintf("Cloud Service created automatically for instance %s", name),
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Location: d.Get("location").(string),
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ReverseDNSFqdn: d.Get("reverse_dns").(string),
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}
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log.Printf("[DEBUG] Creating Cloud Service for instance: %s", name)
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err = hostedservice.NewClient(*mc).CreateHostedService(p)
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if err != nil {
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return fmt.Errorf("Error creating Cloud Service for instance %s: %s", name, err)
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}
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// Put in this defer here, so we are sure to cleanup already created parts
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// when we exit with an error
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defer func(mc *management.Client) {
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if err != nil {
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req, err := hostedservice.NewClient(*mc).DeleteHostedService(name, true)
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if err != nil {
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log.Printf("[DEBUG] Error cleaning up Cloud Service of instance %s: %s", name, err)
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}
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// Wait until the Cloud Service is deleted
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if err := mc.WaitForOperation(req, nil); err != nil {
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log.Printf(
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"[DEBUG] Error waiting for Cloud Service of instance %s to be deleted: %s", name, err)
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}
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}
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}(mc)
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// Create a new role for the instance
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role := vmutils.NewVMConfiguration(name, d.Get("size").(string))
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log.Printf("[DEBUG] Configuring deployment from image...")
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err = configureForImage(&role)
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if err != nil {
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return fmt.Errorf("Error configuring the deployment for %s: %s", name, err)
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}
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if osType == linux {
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// This is pretty ugly, but the Azure SDK leaves me no other choice...
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if tp, ok := d.GetOk("ssh_key_thumbprint"); ok {
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err = vmutils.ConfigureForLinux(
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&role,
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name,
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d.Get("username").(string),
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d.Get("password").(string),
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tp.(string),
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)
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} else {
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err = vmutils.ConfigureForLinux(
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&role,
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name,
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d.Get("username").(string),
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d.Get("password").(string),
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)
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}
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if err != nil {
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return fmt.Errorf("Error configuring %s for Linux: %s", name, err)
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}
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}
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if osType == windows {
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err = vmutils.ConfigureForWindows(
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&role,
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name,
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d.Get("username").(string),
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d.Get("password").(string),
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d.Get("automatic_updates").(bool),
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d.Get("time_zone").(string),
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)
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if err != nil {
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return fmt.Errorf("Error configuring %s for Windows: %s", name, err)
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}
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}
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if s := d.Get("endpoint").(*schema.Set); s.Len() > 0 {
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for _, v := range s.List() {
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m := v.(map[string]interface{})
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err := vmutils.ConfigureWithExternalPort(
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&role,
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m["name"].(string),
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m["private_port"].(int),
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m["public_port"].(int),
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endpointProtocol(m["protocol"].(string)),
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)
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if err != nil {
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return fmt.Errorf(
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"Error adding endpoint %s for instance %s: %s", m["name"].(string), name, err)
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}
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}
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}
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if subnet, ok := d.GetOk("subnet"); ok {
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err = vmutils.ConfigureWithSubnet(&role, subnet.(string))
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if err != nil {
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return fmt.Errorf(
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"Error associating subnet %s with instance %s: %s", d.Get("subnet").(string), name, err)
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}
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}
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if sg, ok := d.GetOk("security_group"); ok {
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err = vmutils.ConfigureWithSecurityGroup(&role, sg.(string))
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if err != nil {
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return fmt.Errorf(
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"Error associating security group %s with instance %s: %s", sg.(string), name, err)
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}
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}
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options := virtualmachine.CreateDeploymentOptions{
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VirtualNetworkName: d.Get("virtual_network").(string),
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}
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log.Printf("[DEBUG] Creating the new instance...")
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req, err := virtualmachine.NewClient(*mc).CreateDeployment(role, name, options)
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if err != nil {
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return fmt.Errorf("Error creating instance %s: %s", name, err)
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}
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log.Printf("[DEBUG] Waiting for the new instance to be created...")
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if err := mc.WaitForOperation(req, nil); err != nil {
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return fmt.Errorf(
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"Error waiting for instance %s to be created: %s", name, err)
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}
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d.SetId(name)
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return resourceAzureInstanceRead(d, meta)
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}
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func resourceAzureInstanceRead(d *schema.ResourceData, meta interface{}) error {
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mc := meta.(*management.Client)
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log.Printf("[DEBUG] Retrieving Cloud Service for instance: %s", d.Id())
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cs, err := hostedservice.NewClient(*mc).GetHostedService(d.Id())
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if err != nil {
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return fmt.Errorf("Error retrieving Cloud Service of instance %s: %s", d.Id(), err)
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}
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d.Set("reverse_dns", cs.ReverseDNSFqdn)
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d.Set("location", cs.Location)
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log.Printf("[DEBUG] Retrieving instance: %s", d.Id())
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dpmt, err := virtualmachine.NewClient(*mc).GetDeployment(d.Id(), d.Id())
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if err != nil {
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return fmt.Errorf("Error retrieving instance %s: %s", d.Id(), err)
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}
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if len(dpmt.RoleList) != 1 {
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return fmt.Errorf(
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"Instance %s has an unexpected number of roles: %d", d.Id(), len(dpmt.RoleList))
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}
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d.Set("size", dpmt.RoleList[0].RoleSize)
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if len(dpmt.RoleInstanceList) != 1 {
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return fmt.Errorf(
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"Instance %s has an unexpected number of role instances: %d",
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d.Id(), len(dpmt.RoleInstanceList))
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}
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d.Set("ip_address", dpmt.RoleInstanceList[0].IPAddress)
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if len(dpmt.RoleInstanceList[0].InstanceEndpoints) > 0 {
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d.Set("vip_address", dpmt.RoleInstanceList[0].InstanceEndpoints[0].Vip)
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}
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// Find the network configuration set
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for _, c := range dpmt.RoleList[0].ConfigurationSets {
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if c.ConfigurationSetType == virtualmachine.ConfigurationSetTypeNetwork {
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// Create a new set to hold all configured endpoints
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endpoints := &schema.Set{
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F: resourceAzureEndpointHash,
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}
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// Loop through all endpoints
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for _, ep := range c.InputEndpoints {
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endpoint := map[string]interface{}{}
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// Update the values
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endpoint["name"] = ep.Name
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endpoint["protocol"] = string(ep.Protocol)
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endpoint["public_port"] = ep.Port
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endpoint["private_port"] = ep.LocalPort
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endpoints.Add(endpoint)
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}
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d.Set("endpoint", endpoints)
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// Update the subnet
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switch len(c.SubnetNames) {
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case 1:
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d.Set("subnet", c.SubnetNames[0])
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case 0:
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d.Set("subnet", "")
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default:
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return fmt.Errorf(
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"Instance %s has an unexpected number of associated subnets %d",
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d.Id(), len(dpmt.RoleInstanceList))
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}
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// Update the security group
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d.Set("security_group", c.NetworkSecurityGroup)
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}
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}
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connType := "ssh"
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if dpmt.RoleList[0].OSVirtualHardDisk.OS == windows {
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connType = "winrm"
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}
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// Set the connection info for any configured provisioners
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d.SetConnInfo(map[string]string{
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"type": connType,
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"host": dpmt.VirtualIPs[0].Address,
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"user": d.Get("username").(string),
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"password": d.Get("password").(string),
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})
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return nil
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}
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func resourceAzureInstanceUpdate(d *schema.ResourceData, meta interface{}) error {
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mc := meta.(*management.Client)
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// First check if anything we can update changed, and if not just return
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if !d.HasChange("size") && !d.HasChange("endpoint") && !d.HasChange("security_group") {
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return nil
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}
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// Get the current role
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role, err := virtualmachine.NewClient(*mc).GetRole(d.Id(), d.Id(), d.Id())
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if err != nil {
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return fmt.Errorf("Error retrieving role of instance %s: %s", d.Id(), err)
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}
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// Verify if we have all required parameters
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if err := verifyInstanceParameters(d, role.OSVirtualHardDisk.OS); err != nil {
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return err
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}
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if d.HasChange("size") {
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role.RoleSize = d.Get("size").(string)
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}
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if d.HasChange("endpoint") {
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_, n := d.GetChange("endpoint")
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// Delete the existing endpoints
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for i, c := range role.ConfigurationSets {
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if c.ConfigurationSetType == virtualmachine.ConfigurationSetTypeNetwork {
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c.InputEndpoints = nil
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role.ConfigurationSets[i] = c
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}
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}
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// And add the ones we still want
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if s := n.(*schema.Set); s.Len() > 0 {
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for _, v := range s.List() {
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m := v.(map[string]interface{})
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err := vmutils.ConfigureWithExternalPort(
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role,
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m["name"].(string),
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m["private_port"].(int),
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m["public_port"].(int),
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endpointProtocol(m["protocol"].(string)),
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)
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if err != nil {
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return fmt.Errorf(
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"Error adding endpoint %s for instance %s: %s", m["name"].(string), d.Id(), err)
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}
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}
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}
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}
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if d.HasChange("security_group") {
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sg := d.Get("security_group").(string)
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err := vmutils.ConfigureWithSecurityGroup(role, sg)
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if err != nil {
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return fmt.Errorf(
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"Error associating security group %s with instance %s: %s", sg, d.Id(), err)
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}
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}
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// Update the adjusted role
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req, err := virtualmachine.NewClient(*mc).UpdateRole(d.Id(), d.Id(), d.Id(), *role)
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if err != nil {
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return fmt.Errorf("Error updating role of instance %s: %s", d.Id(), err)
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}
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if err := mc.WaitForOperation(req, nil); err != nil {
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return fmt.Errorf(
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"Error waiting for role of instance %s to be updated: %s", d.Id(), err)
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}
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return resourceAzureInstanceRead(d, meta)
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}
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func resourceAzureInstanceDelete(d *schema.ResourceData, meta interface{}) error {
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mc := meta.(*management.Client)
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log.Printf("[DEBUG] Deleting instance: %s", d.Id())
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req, err := hostedservice.NewClient(*mc).DeleteHostedService(d.Id(), true)
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if err != nil {
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return fmt.Errorf("Error deleting instance %s: %s", d.Id(), err)
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}
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// Wait until the instance is deleted
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if err := mc.WaitForOperation(req, nil); err != nil {
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return fmt.Errorf(
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"Error waiting for instance %s to be deleted: %s", d.Id(), err)
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}
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d.SetId("")
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return nil
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}
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func resourceAzureEndpointHash(v interface{}) int {
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var buf bytes.Buffer
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m := v.(map[string]interface{})
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buf.WriteString(fmt.Sprintf("%s-", m["name"].(string)))
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buf.WriteString(fmt.Sprintf("%s-", m["protocol"].(string)))
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buf.WriteString(fmt.Sprintf("%d-", m["public_port"].(int)))
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buf.WriteString(fmt.Sprintf("%d-", m["private_port"].(int)))
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return hashcode.String(buf.String())
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}
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func retrieveImageDetails(
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mc *management.Client,
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label string,
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storage string) (func(*virtualmachine.Role) error, string, error) {
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configureForImage, osType, err := retrieveVMImageDetails(mc, label)
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if err == nil {
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return configureForImage, osType, nil
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}
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configureForImage, osType, err = retrieveOSImageDetails(mc, label, storage)
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if err == nil {
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return configureForImage, osType, nil
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}
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return nil, "", fmt.Errorf("Could not find image with label '%s'", label)
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}
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func retrieveVMImageDetails(
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mc *management.Client,
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label string) (func(*virtualmachine.Role) error, string, error) {
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imgs, err := virtualmachineimage.NewClient(*mc).ListVirtualMachineImages()
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if err != nil {
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return nil, "", fmt.Errorf("Error retrieving image details: %s", err)
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}
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for _, img := range imgs.VMImages {
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if img.Label == label {
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if img.OSDiskConfiguration.OS != linux && img.OSDiskConfiguration.OS != windows {
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return nil, "", fmt.Errorf("Unsupported image OS: %s", img.OSDiskConfiguration.OS)
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}
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|
|
|
configureForImage := func(role *virtualmachine.Role) error {
|
|
return vmutils.ConfigureDeploymentFromVMImage(
|
|
role,
|
|
img.Name,
|
|
"",
|
|
true,
|
|
)
|
|
}
|
|
|
|
return configureForImage, img.OSDiskConfiguration.OS, nil
|
|
}
|
|
}
|
|
|
|
return nil, "", fmt.Errorf("Could not find image with label '%s'", label)
|
|
}
|
|
|
|
func retrieveOSImageDetails(
|
|
mc *management.Client,
|
|
label,
|
|
storage string) (func(*virtualmachine.Role) error, string, error) {
|
|
imgs, err := osimage.NewClient(*mc).ListOSImages()
|
|
if err != nil {
|
|
return nil, "", fmt.Errorf("Error retrieving image details: %s", err)
|
|
}
|
|
|
|
for _, img := range imgs.OSImages {
|
|
if img.Label == label {
|
|
if img.OS != linux && img.OS != windows {
|
|
return nil, "", fmt.Errorf("Unsupported image OS: %s", img.OS)
|
|
}
|
|
if img.MediaLink == "" {
|
|
if storage == "" {
|
|
return nil, "",
|
|
fmt.Errorf("When using a platform image, the 'storage' parameter is required")
|
|
}
|
|
img.MediaLink = fmt.Sprintf(osDiskBlobStorageURL, storage, label)
|
|
}
|
|
|
|
configureForImage := func(role *virtualmachine.Role) error {
|
|
return vmutils.ConfigureDeploymentFromPlatformImage(
|
|
role,
|
|
img.Name,
|
|
img.MediaLink,
|
|
label,
|
|
)
|
|
}
|
|
|
|
return configureForImage, img.OS, nil
|
|
}
|
|
}
|
|
|
|
return nil, "", fmt.Errorf("Could not find image with label '%s'", label)
|
|
}
|
|
|
|
func endpointProtocol(p string) virtualmachine.InputEndpointProtocol {
|
|
if p == "tcp" {
|
|
return virtualmachine.InputEndpointProtocolTCP
|
|
}
|
|
|
|
return virtualmachine.InputEndpointProtocolUDP
|
|
}
|
|
|
|
func verifyInstanceParameters(d *schema.ResourceData, osType string) error {
|
|
if osType == linux {
|
|
_, pass := d.GetOk("password")
|
|
_, key := d.GetOk("ssh_key_thumbprint")
|
|
|
|
if !pass && !key {
|
|
return fmt.Errorf(
|
|
"You must supply a 'password' and/or a 'ssh_key_thumbprint' when using a Linux image")
|
|
}
|
|
}
|
|
|
|
if osType == windows {
|
|
if _, ok := d.GetOk("password"); !ok {
|
|
return fmt.Errorf("You must supply a 'password' when using a Windows image")
|
|
}
|
|
|
|
if _, ok := d.GetOk("time_zone"); !ok {
|
|
return fmt.Errorf("You must supply a 'time_zone' when using a Windows image")
|
|
}
|
|
}
|
|
|
|
if _, ok := d.GetOk("subnet"); ok {
|
|
if _, ok := d.GetOk("virtual_network"); !ok {
|
|
return fmt.Errorf("You must also supply a 'virtual_network' when supplying a 'subnet'")
|
|
}
|
|
}
|
|
|
|
if s := d.Get("endpoint").(*schema.Set); s.Len() > 0 {
|
|
for _, v := range s.List() {
|
|
protocol := v.(map[string]interface{})["protocol"].(string)
|
|
|
|
if protocol != "tcp" && protocol != "udp" {
|
|
return fmt.Errorf(
|
|
"Invalid endpoint protocol %s! Valid options are 'tcp' and 'udp'.", protocol)
|
|
}
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|