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564 lines (463 loc) · 15.2 KB
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package cloudstack
import (
"crypto/sha1"
"encoding/base64"
"encoding/hex"
"fmt"
"log"
"strings"
"github.com/hashicorp/terraform/helper/schema"
"github.com/xanzy/go-cloudstack/cloudstack"
)
func resourceCloudStackInstance() *schema.Resource {
return &schema.Resource{
Create: resourceCloudStackInstanceCreate,
Read: resourceCloudStackInstanceRead,
Update: resourceCloudStackInstanceUpdate,
Delete: resourceCloudStackInstanceDelete,
Schema: map[string]*schema.Schema{
"name": &schema.Schema{
Type: schema.TypeString,
Optional: true,
Computed: true,
},
"display_name": &schema.Schema{
Type: schema.TypeString,
Optional: true,
Computed: true,
},
"service_offering": &schema.Schema{
Type: schema.TypeString,
Required: true,
},
"network_id": &schema.Schema{
Type: schema.TypeString,
Optional: true,
Computed: true,
ForceNew: true,
},
"ip_address": &schema.Schema{
Type: schema.TypeString,
Optional: true,
Computed: true,
ForceNew: true,
},
"template": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"root_disk_size": &schema.Schema{
Type: schema.TypeInt,
Optional: true,
ForceNew: true,
},
"group": &schema.Schema{
Type: schema.TypeString,
Optional: true,
Computed: true,
},
"affinity_group_ids": &schema.Schema{
Type: schema.TypeSet,
Optional: true,
Elem: &schema.Schema{Type: schema.TypeString},
Set: schema.HashString,
ConflictsWith: []string{"affinity_group_names"},
},
"affinity_group_names": &schema.Schema{
Type: schema.TypeSet,
Optional: true,
Elem: &schema.Schema{Type: schema.TypeString},
Set: schema.HashString,
ConflictsWith: []string{"affinity_group_ids"},
},
"security_group_ids": &schema.Schema{
Type: schema.TypeSet,
Optional: true,
ForceNew: true,
Elem: &schema.Schema{Type: schema.TypeString},
Set: schema.HashString,
ConflictsWith: []string{"security_group_names"},
},
"security_group_names": &schema.Schema{
Type: schema.TypeSet,
Optional: true,
ForceNew: true,
Elem: &schema.Schema{Type: schema.TypeString},
Set: schema.HashString,
ConflictsWith: []string{"security_group_ids"},
},
"project": &schema.Schema{
Type: schema.TypeString,
Optional: true,
Computed: true,
ForceNew: true,
},
"zone": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"keypair": &schema.Schema{
Type: schema.TypeString,
Optional: true,
},
"user_data": &schema.Schema{
Type: schema.TypeString,
Optional: true,
StateFunc: func(v interface{}) string {
switch v.(type) {
case string:
hash := sha1.Sum([]byte(v.(string)))
return hex.EncodeToString(hash[:])
default:
return ""
}
},
},
"expunge": &schema.Schema{
Type: schema.TypeBool,
Optional: true,
Default: false,
},
},
}
}
func resourceCloudStackInstanceCreate(d *schema.ResourceData, meta interface{}) error {
cs := meta.(*cloudstack.CloudStackClient)
// Retrieve the service_offering ID
serviceofferingid, e := retrieveID(cs, "service_offering", d.Get("service_offering").(string))
if e != nil {
return e.Error()
}
// Retrieve the zone ID
zoneid, e := retrieveID(cs, "zone", d.Get("zone").(string))
if e != nil {
return e.Error()
}
// Retrieve the zone object
zone, _, err := cs.Zone.GetZoneByID(zoneid)
if err != nil {
return err
}
// Retrieve the template ID
templateid, e := retrieveTemplateID(cs, zone.Id, d.Get("template").(string))
if e != nil {
return e.Error()
}
// Create a new parameter struct
p := cs.VirtualMachine.NewDeployVirtualMachineParams(serviceofferingid, templateid, zone.Id)
// Set the name
name, hasName := d.GetOk("name")
if hasName {
p.SetName(name.(string))
}
// Set the display name
if displayname, ok := d.GetOk("display_name"); ok {
p.SetDisplayname(displayname.(string))
} else if hasName {
p.SetDisplayname(name.(string))
}
// If there is a root_disk_size supplied, add it to the parameter struct
if rootdisksize, ok := d.GetOk("root_disk_size"); ok {
p.SetRootdisksize(int64(rootdisksize.(int)))
}
if zone.Networktype == "Advanced" {
// Set the default network ID
p.SetNetworkids([]string{d.Get("network_id").(string)})
}
// If there is a ipaddres supplied, add it to the parameter struct
if ipaddress, ok := d.GetOk("ip_address"); ok {
p.SetIpaddress(ipaddress.(string))
}
// If there is a group supplied, add it to the parameter struct
if group, ok := d.GetOk("group"); ok {
p.SetGroup(group.(string))
}
// If there are affinity group IDs supplied, add them to the parameter struct
if agIDs := d.Get("affinity_group_ids").(*schema.Set); agIDs.Len() > 0 {
var groups []string
for _, group := range agIDs.List() {
groups = append(groups, group.(string))
}
p.SetAffinitygroupids(groups)
}
// If there are affinity group names supplied, add them to the parameter struct
if agNames := d.Get("affinity_group_names").(*schema.Set); agNames.Len() > 0 {
var groups []string
for _, group := range agNames.List() {
groups = append(groups, group.(string))
}
p.SetAffinitygroupnames(groups)
}
// If there are security group IDs supplied, add them to the parameter struct
if sgIDs := d.Get("security_group_ids").(*schema.Set); sgIDs.Len() > 0 {
var groups []string
for _, group := range sgIDs.List() {
groups = append(groups, group.(string))
}
p.SetSecuritygroupids(groups)
}
// If there are security group names supplied, add them to the parameter struct
if sgNames := d.Get("security_group_names").(*schema.Set); sgNames.Len() > 0 {
var groups []string
for _, group := range sgNames.List() {
groups = append(groups, group.(string))
}
p.SetSecuritygroupnames(groups)
}
// If there is a project supplied, we retrieve and set the project id
if err := setProjectid(p, cs, d); err != nil {
return err
}
// If a keypair is supplied, add it to the parameter struct
if keypair, ok := d.GetOk("keypair"); ok {
p.SetKeypair(keypair.(string))
}
if userData, ok := d.GetOk("user_data"); ok {
ud, err := getUserData(userData.(string), cs.HTTPGETOnly)
if err != nil {
return err
}
p.SetUserdata(ud)
}
// Create the new instance
r, err := cs.VirtualMachine.DeployVirtualMachine(p)
if err != nil {
return fmt.Errorf("Error creating the new instance %s: %s", name, err)
}
d.SetId(r.Id)
// Set the connection info for any configured provisioners
d.SetConnInfo(map[string]string{
"host": r.Nic[0].Ipaddress,
"password": r.Password,
})
return resourceCloudStackInstanceRead(d, meta)
}
func resourceCloudStackInstanceRead(d *schema.ResourceData, meta interface{}) error {
cs := meta.(*cloudstack.CloudStackClient)
// Get the virtual machine details
vm, count, err := cs.VirtualMachine.GetVirtualMachineByID(
d.Id(),
cloudstack.WithProject(d.Get("project").(string)),
)
if err != nil {
if count == 0 {
log.Printf("[DEBUG] Instance %s does no longer exist", d.Get("name").(string))
d.SetId("")
return nil
}
return err
}
// Update the config
d.Set("name", vm.Name)
d.Set("display_name", vm.Displayname)
d.Set("network_id", vm.Nic[0].Networkid)
d.Set("ip_address", vm.Nic[0].Ipaddress)
d.Set("group", vm.Group)
if _, ok := d.GetOk("affinity_group_ids"); ok {
groups := &schema.Set{F: schema.HashString}
for _, group := range vm.Affinitygroup {
groups.Add(group.Id)
}
d.Set("affinity_group_ids", groups)
}
if _, ok := d.GetOk("affinity_group_names"); ok {
groups := &schema.Set{F: schema.HashString}
for _, group := range vm.Affinitygroup {
groups.Add(group.Name)
}
d.Set("affinity_group_names", groups)
}
if _, ok := d.GetOk("security_group_ids"); ok {
groups := &schema.Set{F: schema.HashString}
for _, group := range vm.Securitygroup {
groups.Add(group.Id)
}
d.Set("security_group_ids", groups)
}
if _, ok := d.GetOk("security_group_names"); ok {
groups := &schema.Set{F: schema.HashString}
for _, group := range vm.Securitygroup {
groups.Add(group.Name)
}
d.Set("security_group_names", groups)
}
setValueOrID(d, "service_offering", vm.Serviceofferingname, vm.Serviceofferingid)
setValueOrID(d, "template", vm.Templatename, vm.Templateid)
setValueOrID(d, "project", vm.Project, vm.Projectid)
setValueOrID(d, "zone", vm.Zonename, vm.Zoneid)
return nil
}
func resourceCloudStackInstanceUpdate(d *schema.ResourceData, meta interface{}) error {
cs := meta.(*cloudstack.CloudStackClient)
d.Partial(true)
name := d.Get("name").(string)
// Check if the display name is changed and if so, update the virtual machine
if d.HasChange("display_name") {
log.Printf("[DEBUG] Display name changed for %s, starting update", name)
// Create a new parameter struct
p := cs.VirtualMachine.NewUpdateVirtualMachineParams(d.Id())
// Set the new display name
p.SetDisplayname(d.Get("display_name").(string))
// Update the display name
_, err := cs.VirtualMachine.UpdateVirtualMachine(p)
if err != nil {
return fmt.Errorf(
"Error updating the display name for instance %s: %s", name, err)
}
d.SetPartial("display_name")
}
// Check if the group is changed and if so, update the virtual machine
if d.HasChange("group") {
log.Printf("[DEBUG] Group changed for %s, starting update", name)
// Create a new parameter struct
p := cs.VirtualMachine.NewUpdateVirtualMachineParams(d.Id())
// Set the new group
p.SetGroup(d.Get("group").(string))
// Update the display name
_, err := cs.VirtualMachine.UpdateVirtualMachine(p)
if err != nil {
return fmt.Errorf(
"Error updating the group for instance %s: %s", name, err)
}
d.SetPartial("group")
}
// Attributes that require reboot to update
if d.HasChange("name") || d.HasChange("service_offering") || d.HasChange("affinity_group_ids") || d.HasChange("affinity_group_names") || d.HasChange("keypair") || d.HasChange("user_data") {
// Before we can actually make these changes, the virtual machine must be stopped
_, err := cs.VirtualMachine.StopVirtualMachine(
cs.VirtualMachine.NewStopVirtualMachineParams(d.Id()))
if err != nil {
return fmt.Errorf(
"Error stopping instance %s before making changes: %s", name, err)
}
// Check if the name has changed and if so, update the name
if d.HasChange("name") {
log.Printf("[DEBUG] Name for %s changed to %s, starting update", d.Id(), name)
// Create a new parameter struct
p := cs.VirtualMachine.NewUpdateVirtualMachineParams(d.Id())
// Set the new name
p.SetName(name)
// Update the display name
_, err := cs.VirtualMachine.UpdateVirtualMachine(p)
if err != nil {
return fmt.Errorf(
"Error updating the name for instance %s: %s", name, err)
}
d.SetPartial("name")
}
// Check if the service offering is changed and if so, update the offering
if d.HasChange("service_offering") {
log.Printf("[DEBUG] Service offering changed for %s, starting update", name)
// Retrieve the service_offering ID
serviceofferingid, e := retrieveID(cs, "service_offering", d.Get("service_offering").(string))
if e != nil {
return e.Error()
}
// Create a new parameter struct
p := cs.VirtualMachine.NewChangeServiceForVirtualMachineParams(d.Id(), serviceofferingid)
// Change the service offering
_, err = cs.VirtualMachine.ChangeServiceForVirtualMachine(p)
if err != nil {
return fmt.Errorf(
"Error changing the service offering for instance %s: %s", name, err)
}
d.SetPartial("service_offering")
}
// Check if the affinity group IDs have changed and if so, update the IDs
if d.HasChange("affinity_group_ids") {
p := cs.AffinityGroup.NewUpdateVMAffinityGroupParams(d.Id())
groups := []string{}
if agIDs := d.Get("affinity_group_ids").(*schema.Set); agIDs.Len() > 0 {
for _, group := range agIDs.List() {
groups = append(groups, group.(string))
}
}
p.SetAffinitygroupids(groups)
}
// Check if the affinity group names have changed and if so, update the names
if d.HasChange("affinity_group_names") {
p := cs.AffinityGroup.NewUpdateVMAffinityGroupParams(d.Id())
groups := []string{}
if agNames := d.Get("affinity_group_names").(*schema.Set); agNames.Len() > 0 {
for _, group := range agNames.List() {
groups = append(groups, group.(string))
}
}
p.SetAffinitygroupids(groups)
}
// Check if the keypair has changed and if so, update the keypair
if d.HasChange("keypair") {
log.Printf("[DEBUG] SSH keypair changed for %s, starting update", name)
p := cs.SSH.NewResetSSHKeyForVirtualMachineParams(d.Id(), d.Get("keypair").(string))
// Change the ssh keypair
_, err = cs.SSH.ResetSSHKeyForVirtualMachine(p)
if err != nil {
return fmt.Errorf(
"Error changing the SSH keypair for instance %s: %s", name, err)
}
d.SetPartial("keypair")
}
// Check if the user data has changed and if so, update the user data
if d.HasChange("user_data") {
log.Printf("[DEBUG] user_data changed for %s, starting update", name)
ud, err := getUserData(d.Get("user_data").(string), cs.HTTPGETOnly)
if err != nil {
return err
}
p := cs.VirtualMachine.NewUpdateVirtualMachineParams(d.Id())
p.SetUserdata(ud)
_, err = cs.VirtualMachine.UpdateVirtualMachine(p)
if err != nil {
return fmt.Errorf(
"Error updating user_data for instance %s: %s", name, err)
}
d.SetPartial("user_data")
}
// Start the virtual machine again
_, err = cs.VirtualMachine.StartVirtualMachine(
cs.VirtualMachine.NewStartVirtualMachineParams(d.Id()))
if err != nil {
return fmt.Errorf(
"Error starting instance %s after making changes", name)
}
}
d.Partial(false)
return resourceCloudStackInstanceRead(d, meta)
}
func resourceCloudStackInstanceDelete(d *schema.ResourceData, meta interface{}) error {
cs := meta.(*cloudstack.CloudStackClient)
// Create a new parameter struct
p := cs.VirtualMachine.NewDestroyVirtualMachineParams(d.Id())
if d.Get("expunge").(bool) {
p.SetExpunge(true)
}
log.Printf("[INFO] Destroying instance: %s", d.Get("name").(string))
if _, err := cs.VirtualMachine.DestroyVirtualMachine(p); err != nil {
// This is a very poor way to be told the ID does no longer exist :(
if strings.Contains(err.Error(), fmt.Sprintf(
"Invalid parameter id value=%s due to incorrect long value format, "+
"or entity does not exist", d.Id())) {
return nil
}
return fmt.Errorf("Error destroying instance: %s", err)
}
return nil
}
// getUserData returns the user data as a base64 encoded string
func getUserData(userData string, httpGetOnly bool) (string, error) {
ud := base64.StdEncoding.EncodeToString([]byte(userData))
// deployVirtualMachine uses POST by default, so max userdata is 32K
maxUD := 32768
if httpGetOnly {
// deployVirtualMachine using GET instead, so max userdata is 2K
maxUD = 2048
}
if len(ud) > maxUD {
return "", fmt.Errorf(
"The supplied user_data contains %d bytes after encoding, "+
"this exeeds the limit of %d bytes", len(ud), maxUD)
}
return ud, nil
}