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resource_alicloud_instance.go
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resource_alicloud_instance.go
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package alicloud
import (
"fmt"
"log"
"encoding/base64"
"encoding/json"
"github.com/denverdino/aliyungo/common"
"github.com/denverdino/aliyungo/ecs"
"github.com/hashicorp/terraform/helper/resource"
"github.com/hashicorp/terraform/helper/schema"
"strings"
"time"
)
func resourceAliyunInstance() *schema.Resource {
return &schema.Resource{
Create: resourceAliyunInstanceCreate,
Read: resourceAliyunInstanceRead,
Update: resourceAliyunInstanceUpdate,
Delete: resourceAliyunInstanceDelete,
Schema: map[string]*schema.Schema{
"availability_zone": &schema.Schema{
Type: schema.TypeString,
Optional: true,
ForceNew: true,
Computed: true,
},
"image_id": &schema.Schema{
Type: schema.TypeString,
Required: true,
},
"instance_type": &schema.Schema{
Type: schema.TypeString,
Required: true,
},
"security_groups": &schema.Schema{
Type: schema.TypeSet,
Elem: &schema.Schema{Type: schema.TypeString},
Required: true,
},
"allocate_public_ip": &schema.Schema{
Type: schema.TypeBool,
Optional: true,
Default: false,
},
"instance_name": &schema.Schema{
Type: schema.TypeString,
Optional: true,
Default: "ECS-Instance",
ValidateFunc: validateInstanceName,
},
"description": &schema.Schema{
Type: schema.TypeString,
Optional: true,
ValidateFunc: validateInstanceDescription,
},
"internet_charge_type": &schema.Schema{
Type: schema.TypeString,
Optional: true,
ForceNew: true,
ValidateFunc: validateInternetChargeType,
},
"internet_max_bandwidth_in": &schema.Schema{
Type: schema.TypeString,
Optional: true,
ForceNew: true,
},
"internet_max_bandwidth_out": &schema.Schema{
Type: schema.TypeInt,
Optional: true,
ForceNew: true,
ValidateFunc: validateInternetMaxBandWidthOut,
},
"host_name": &schema.Schema{
Type: schema.TypeString,
Optional: true,
Computed: true,
},
"password": &schema.Schema{
Type: schema.TypeString,
Optional: true,
Sensitive: true,
},
"io_optimized": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
ValidateFunc: validateIoOptimized,
},
"system_disk_category": &schema.Schema{
Type: schema.TypeString,
Default: "cloud",
Optional: true,
ForceNew: true,
ValidateFunc: validateAllowedStringValue([]string{
string(ecs.DiskCategoryCloud),
string(ecs.DiskCategoryCloudSSD),
string(ecs.DiskCategoryCloudEfficiency),
string(ecs.DiskCategoryEphemeralSSD),
}),
},
"system_disk_size": &schema.Schema{
Type: schema.TypeInt,
Optional: true,
Computed: true,
ValidateFunc: validateIntegerInRange(40, 500),
},
//subnet_id and vswitch_id both exists, cause compatible old version, and aws habit.
"subnet_id": &schema.Schema{
Type: schema.TypeString,
Optional: true,
ForceNew: true,
Computed: true, //add this schema cause subnet_id not used enter parameter, will different, so will be ForceNew
},
"vswitch_id": &schema.Schema{
Type: schema.TypeString,
Optional: true,
ForceNew: true,
},
"instance_charge_type": &schema.Schema{
Type: schema.TypeString,
Optional: true,
ForceNew: true,
ValidateFunc: validateInstanceChargeType,
},
"period": &schema.Schema{
Type: schema.TypeInt,
Optional: true,
ForceNew: true,
},
"public_ip": &schema.Schema{
Type: schema.TypeString,
Optional: true,
Computed: true,
},
"private_ip": &schema.Schema{
Type: schema.TypeString,
Computed: true,
},
"status": &schema.Schema{
Type: schema.TypeString,
Computed: true,
},
"user_data": &schema.Schema{
Type: schema.TypeString,
Optional: true,
ForceNew: true,
},
"tags": tagsSchema(),
},
}
}
func resourceAliyunInstanceCreate(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AliyunClient).ecsconn
// create postpaid instance by runInstances API
if v := d.Get("instance_charge_type").(string); v != string(common.PrePaid) {
return resourceAliyunRunInstance(d, meta)
}
args, err := buildAliyunInstanceArgs(d, meta)
if err != nil {
return err
}
instanceID, err := conn.CreateInstance(args)
if err != nil {
return fmt.Errorf("Error creating Aliyun ecs instance: %#v", err)
}
d.SetId(instanceID)
d.Set("password", d.Get("password"))
// after instance created, its status is pending,
// so we need to wait it become to stopped and then start it
if err := conn.WaitForInstanceAsyn(d.Id(), ecs.Stopped, defaultTimeout); err != nil {
return fmt.Errorf("[DEBUG] WaitForInstance %s got error: %#v", ecs.Stopped, err)
}
if err := allocateIpAndBandWidthRelative(d, meta); err != nil {
return fmt.Errorf("allocateIpAndBandWidthRelative err: %#v", err)
}
if err := conn.StartInstance(d.Id()); err != nil {
return fmt.Errorf("Start instance got error: %#v", err)
}
if err := conn.WaitForInstanceAsyn(d.Id(), ecs.Running, defaultTimeout); err != nil {
return fmt.Errorf("[DEBUG] WaitForInstance %s got error: %#v", ecs.Running, err)
}
return resourceAliyunInstanceUpdate(d, meta)
}
func resourceAliyunRunInstance(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AliyunClient).ecsconn
newConn := meta.(*AliyunClient).ecsNewconn
args, err := buildAliyunInstanceArgs(d, meta)
if err != nil {
return err
}
if args.IoOptimized == "optimized" {
args.IoOptimized = ecs.IoOptimized("true")
} else {
args.IoOptimized = ecs.IoOptimized("false")
}
runArgs, err := buildAliyunRunInstancesArgs(d, meta)
if err != nil {
return err
}
runArgs.CreateInstanceArgs = *args
// runInstances is support in version 2016-03-14
instanceIds, err := newConn.RunInstances(runArgs)
if err != nil {
return fmt.Errorf("Error creating Aliyun ecs instance: %#v", err)
}
d.SetId(instanceIds[0])
d.Set("password", d.Get("password"))
d.Set("system_disk_category", d.Get("system_disk_category"))
d.Set("system_disk_size", d.Get("system_disk_size"))
// after instance created, its status change from pending, starting to running
if err := conn.WaitForInstanceAsyn(d.Id(), ecs.Running, defaultTimeout); err != nil {
return fmt.Errorf("[DEBUG] WaitForInstance %s got error: %#v", ecs.Running, err)
}
if err := allocateIpAndBandWidthRelative(d, meta); err != nil {
return fmt.Errorf("allocateIpAndBandWidthRelative err: %#v", err)
}
if err := conn.WaitForInstanceAsyn(d.Id(), ecs.Running, defaultTimeout); err != nil {
return fmt.Errorf("[DEBUG] WaitForInstance %s got error: %#v", ecs.Running, err)
}
return resourceAliyunInstanceUpdate(d, meta)
}
func resourceAliyunInstanceRead(d *schema.ResourceData, meta interface{}) error {
client := meta.(*AliyunClient)
conn := client.ecsconn
instance, err := client.QueryInstancesById(d.Id())
if err != nil {
if notFoundError(err) {
d.SetId("")
return nil
}
return fmt.Errorf("Error DescribeInstanceAttribute: %#v", err)
}
disk, diskErr := client.QueryInstanceSystemDisk(d.Id())
if diskErr != nil {
if notFoundError(diskErr) {
d.SetId("")
return nil
}
return fmt.Errorf("Error DescribeSystemDisk: %#v", err)
}
d.Set("instance_name", instance.InstanceName)
d.Set("description", instance.Description)
d.Set("status", instance.Status)
d.Set("availability_zone", instance.ZoneId)
d.Set("host_name", instance.HostName)
d.Set("image_id", instance.ImageId)
d.Set("instance_type", instance.InstanceType)
d.Set("system_disk_category", disk.Category)
d.Set("system_disk_size", disk.Size)
// In Classic network, internet_charge_type is valid in any case, and its default value is 'PayByBanwidth'.
// In VPC network, internet_charge_type is valid when instance has public ip, and its default value is 'PayByBanwidth'.
d.Set("internet_charge_type", instance.InternetChargeType)
if d.Get("allocate_public_ip").(bool) {
d.Set("public_ip", instance.PublicIpAddress.IpAddress[0])
}
if ecs.StringOrBool(instance.IoOptimized).Value {
d.Set("io_optimized", "optimized")
} else {
d.Set("io_optimized", "none")
}
if d.Get("subnet_id").(string) != "" || d.Get("vswitch_id").(string) != "" {
ipAddress := instance.VpcAttributes.PrivateIpAddress.IpAddress[0]
d.Set("private_ip", ipAddress)
d.Set("subnet_id", instance.VpcAttributes.VSwitchId)
d.Set("vswitch_id", instance.VpcAttributes.VSwitchId)
} else {
ipAddress := strings.Join(ecs.IpAddressSetType(instance.InnerIpAddress).IpAddress, ",")
d.Set("private_ip", ipAddress)
}
if d.Get("user_data").(string) != "" {
ud, err := conn.DescribeUserdata(&ecs.DescribeUserdataArgs{
RegionId: getRegion(d, meta),
InstanceId: d.Id(),
})
if err != nil {
log.Printf("[ERROR] DescribeUserData for instance got error: %#v", err)
}
d.Set("user_data", userDataHashSum(ud.UserData))
}
tags, _, err := conn.DescribeTags(&ecs.DescribeTagsArgs{
RegionId: getRegion(d, meta),
ResourceType: ecs.TagResourceInstance,
ResourceId: d.Id(),
})
if err != nil {
log.Printf("[ERROR] DescribeTags for instance got error: %#v", err)
}
d.Set("tags", tagsToMap(tags))
return nil
}
func resourceAliyunInstanceUpdate(d *schema.ResourceData, meta interface{}) error {
client := meta.(*AliyunClient)
conn := client.ecsconn
d.Partial(true)
if err := setTags(client, ecs.TagResourceInstance, d); err != nil {
log.Printf("[DEBUG] Set tags for instance got error: %#v", err)
return fmt.Errorf("Set tags for instance got error: %#v", err)
} else {
d.SetPartial("tags")
}
imageUpdate := false
if d.HasChange("image_id") && !d.IsNewResource() {
log.Printf("[DEBUG] Replace instance system disk via changing image_id")
replaceSystemArgs := &ecs.ReplaceSystemDiskArgs{
InstanceId: d.Id(),
ImageId: d.Get("image_id").(string),
SystemDisk: ecs.SystemDiskType{
Size: d.Get("system_disk_size").(int),
},
}
if v, ok := d.GetOk("status"); ok && v.(string) != "" {
if ecs.InstanceStatus(d.Get("status").(string)) == ecs.Running {
log.Printf("[DEBUG] StopInstance before change system disk")
if err := conn.StopInstance(d.Id(), true); err != nil {
return fmt.Errorf("Force Stop Instance got an error: %#v", err)
}
if err := conn.WaitForInstance(d.Id(), ecs.Stopped, 60); err != nil {
return fmt.Errorf("WaitForInstance got error: %#v", err)
}
}
}
_, err := conn.ReplaceSystemDisk(replaceSystemArgs)
if err != nil {
return fmt.Errorf("Replace system disk got an error: %#v", err)
}
// Ensure instance's image has been replaced successfully.
timeout := ecs.InstanceDefaultTimeout
for {
instance, errDesc := conn.DescribeInstanceAttribute(d.Id())
if errDesc != nil {
return fmt.Errorf("Describe instance got an error: %#v", errDesc)
}
if instance.ImageId == d.Get("image_id") {
break
}
time.Sleep(ecs.DefaultWaitForInterval * time.Second)
timeout = timeout - ecs.DefaultWaitForInterval
if timeout <= 0 {
return common.GetClientErrorFromString("Timeout")
}
}
imageUpdate = true
d.SetPartial("system_disk_size")
d.SetPartial("image_id")
}
// Provider doesn't support change 'system_disk_size'separately.
if d.HasChange("system_disk_size") && !d.HasChange("image_id") {
return fmt.Errorf("Update resource failed. 'system_disk_size' isn't allowed to change separately. You can update it via renewing instance or replacing system disk.")
}
attributeUpdate := false
args := &ecs.ModifyInstanceAttributeArgs{
InstanceId: d.Id(),
}
if d.HasChange("instance_name") && !d.IsNewResource() {
log.Printf("[DEBUG] ModifyInstanceAttribute instance_name")
d.SetPartial("instance_name")
args.InstanceName = d.Get("instance_name").(string)
attributeUpdate = true
}
if d.HasChange("description") && !d.IsNewResource() {
log.Printf("[DEBUG] ModifyInstanceAttribute description")
d.SetPartial("description")
args.Description = d.Get("description").(string)
attributeUpdate = true
}
if d.HasChange("host_name") && !d.IsNewResource() {
log.Printf("[DEBUG] ModifyInstanceAttribute host_name")
d.SetPartial("host_name")
args.HostName = d.Get("host_name").(string)
attributeUpdate = true
}
passwordUpdate := false
if d.HasChange("password") && !d.IsNewResource() {
log.Printf("[DEBUG] ModifyInstanceAttribute password")
d.SetPartial("password")
args.Password = d.Get("password").(string)
attributeUpdate = true
passwordUpdate = true
}
if attributeUpdate {
if err := conn.ModifyInstanceAttribute(args); err != nil {
return fmt.Errorf("Modify instance attribute got error: %#v", err)
}
}
if imageUpdate || passwordUpdate {
instance, errDesc := conn.DescribeInstanceAttribute(d.Id())
if errDesc != nil {
return fmt.Errorf("Describe instance got an error: %#v", errDesc)
}
if instance.Status != ecs.Running && instance.Status != ecs.Stopped {
return fmt.Errorf("ECS instance's status doesn't support to start or reboot operation after replace image_id or update password. The current instance's status is %#v", instance.Status)
} else if instance.Status == ecs.Running {
log.Printf("[DEBUG] Reboot instance after change image or password")
if err := conn.RebootInstance(d.Id(), false); err != nil {
return fmt.Errorf("RebootInstance got error: %#v", err)
}
} else {
log.Printf("[DEBUG] Start instance after change image or password")
if err := conn.StartInstance(d.Id()); err != nil {
return fmt.Errorf("StartInstance got error: %#v", err)
}
}
// Start instance sometimes costs more than 6 minutes when os type is centos.
if err := conn.WaitForInstance(d.Id(), ecs.Running, 400); err != nil {
return fmt.Errorf("WaitForInstance got error: %#v", err)
}
}
if d.HasChange("security_groups") {
o, n := d.GetChange("security_groups")
os := o.(*schema.Set)
ns := n.(*schema.Set)
rl := expandStringList(os.Difference(ns).List())
al := expandStringList(ns.Difference(os).List())
if len(al) > 0 {
err := client.JoinSecurityGroups(d.Id(), al)
if err != nil {
return err
}
}
if len(rl) > 0 {
err := client.LeaveSecurityGroups(d.Id(), rl)
if err != nil {
return err
}
}
d.SetPartial("security_groups")
}
d.Partial(false)
return resourceAliyunInstanceRead(d, meta)
}
func resourceAliyunInstanceDelete(d *schema.ResourceData, meta interface{}) error {
client := meta.(*AliyunClient)
conn := client.ecsconn
return resource.Retry(5*time.Minute, func() *resource.RetryError {
instance, err := client.QueryInstancesById(d.Id())
if err != nil {
if notFoundError(err) {
return nil
}
}
if instance.Status != ecs.Stopped {
if err := conn.StopInstance(d.Id(), true); err != nil {
return resource.RetryableError(fmt.Errorf("ECS stop error - trying again."))
}
if err := conn.WaitForInstance(d.Id(), ecs.Stopped, defaultTimeout); err != nil {
return resource.RetryableError(fmt.Errorf("Waiting for ecs stopped timeout - trying again."))
}
}
if err := conn.DeleteInstance(d.Id()); err != nil {
return resource.RetryableError(fmt.Errorf("ECS Instance in use - trying again while it is deleted."))
}
return nil
})
}
func allocateIpAndBandWidthRelative(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AliyunClient).ecsconn
if d.Get("allocate_public_ip").(bool) {
if d.Get("internet_max_bandwidth_out") == 0 {
return fmt.Errorf("Error: if allocate_public_ip is true than the internet_max_bandwidth_out cannot equal zero.")
}
_, err := conn.AllocatePublicIpAddress(d.Id())
if err != nil {
return fmt.Errorf("[DEBUG] AllocatePublicIpAddress for instance got error: %#v", err)
}
}
return nil
}
func buildAliyunRunInstancesArgs(d *schema.ResourceData, meta interface{}) (*ecs.RunInstanceArgs, error) {
args := &ecs.RunInstanceArgs{
MaxAmount: DEFAULT_INSTANCE_COUNT,
MinAmount: DEFAULT_INSTANCE_COUNT,
}
bussStr, err := json.Marshal(DefaultBusinessInfo)
if err != nil {
log.Printf("Failed to translate bussiness info %#v from json to string", DefaultBusinessInfo)
}
args.BusinessInfo = string(bussStr)
subnetValue := d.Get("subnet_id").(string)
vswitchValue := d.Get("vswitch_id").(string)
//networkValue := d.Get("instance_network_type").(string)
// because runInstance is not compatible with createInstance, force NetworkType value to classic
if subnetValue == "" && vswitchValue == "" {
args.NetworkType = string(ClassicNet)
}
return args, nil
}
func buildAliyunInstanceArgs(d *schema.ResourceData, meta interface{}) (*ecs.CreateInstanceArgs, error) {
client := meta.(*AliyunClient)
args := &ecs.CreateInstanceArgs{
RegionId: getRegion(d, meta),
InstanceType: d.Get("instance_type").(string),
}
imageID := d.Get("image_id").(string)
args.ImageId = imageID
systemDiskCategory := ecs.DiskCategory(d.Get("system_disk_category").(string))
systemDiskSize := d.Get("system_disk_size").(int)
zoneID := d.Get("availability_zone").(string)
// check instanceType and systemDiskCategory, when zoneID is not empty
if zoneID != "" {
zone, err := client.DescribeZone(zoneID)
if err != nil {
return nil, err
}
if err := client.ResourceAvailable(zone, ecs.ResourceTypeInstance); err != nil {
return nil, err
}
if err := client.DiskAvailable(zone, systemDiskCategory); err != nil {
return nil, err
}
args.ZoneId = zoneID
}
args.SystemDisk = ecs.SystemDiskType{
Category: systemDiskCategory,
Size: systemDiskSize,
}
sgs, ok := d.GetOk("security_groups")
if ok {
sgList := expandStringList(sgs.(*schema.Set).List())
sg0 := sgList[0]
// check security group instance exist
_, err := client.DescribeSecurity(sg0)
if err == nil {
args.SecurityGroupId = sg0
}
}
if v := d.Get("instance_name").(string); v != "" {
args.InstanceName = v
}
if v := d.Get("description").(string); v != "" {
args.Description = v
}
if v := d.Get("internet_charge_type").(string); v != "" {
args.InternetChargeType = common.InternetChargeType(v)
}
if v := d.Get("internet_max_bandwidth_out").(int); v != 0 {
args.InternetMaxBandwidthOut = v
}
if v := d.Get("host_name").(string); v != "" {
args.HostName = v
}
if v := d.Get("password").(string); v != "" {
args.Password = v
}
if v := d.Get("io_optimized").(string); v != "" {
args.IoOptimized = ecs.IoOptimized(v)
}
vswitchValue := d.Get("subnet_id").(string)
if vswitchValue == "" {
vswitchValue = d.Get("vswitch_id").(string)
}
if vswitchValue != "" {
args.VSwitchId = vswitchValue
if d.Get("allocate_public_ip").(bool) && args.InternetMaxBandwidthOut <= 0 {
return nil, fmt.Errorf("Invalid internet_max_bandwidth_out result in allocation public ip failed in the VPC.")
}
}
if v := d.Get("instance_charge_type").(string); v != "" {
args.InstanceChargeType = common.InstanceChargeType(v)
}
log.Printf("[DEBUG] period is %d", d.Get("period").(int))
if v := d.Get("period").(int); v != 0 {
args.Period = v
} else if args.InstanceChargeType == common.PrePaid {
return nil, fmt.Errorf("period is required for instance_charge_type is PrePaid")
}
if v := d.Get("user_data").(string); v != "" {
args.UserData = v
}
return args, nil
}
func userDataHashSum(user_data string) string {
// Check whether the user_data is not Base64 encoded.
// Always calculate hash of base64 decoded value since we
// check against double-encoding when setting it
v, base64DecodeError := base64.StdEncoding.DecodeString(user_data)
if base64DecodeError != nil {
v = []byte(user_data)
}
return string(v)
}