resource_alicloud_mongodb_instance.go

package alicloud

import (
	"fmt"
	"strconv"
	"strings"
	"time"

	"github.com/aliyun/alibaba-cloud-sdk-go/sdk/requests"
	"github.com/aliyun/alibaba-cloud-sdk-go/services/dds"
	"github.com/hashicorp/terraform/helper/resource"
	"github.com/hashicorp/terraform/helper/schema"
	"github.com/terraform-providers/terraform-provider-alicloud/alicloud/connectivity"
)

func resourceAlicloudMongoDBInstance() *schema.Resource {
	return &schema.Resource{
		Create: resourceAlicloudMongoDBInstanceCreate,
		Read:   resourceAlicloudMongoDBInstanceRead,
		Update: resourceAlicloudMongoDBInstanceUpdate,
		Delete: resourceAlicloudMongoDBInstanceDelete,
		Importer: &schema.ResourceImporter{
			State: schema.ImportStatePassthrough,
		},

		Schema: map[string]*schema.Schema{
			"engine_version": {
				Type:     schema.TypeString,
				ForceNew: true,
				Required: true,
			},
			"db_instance_class": {
				Type:     schema.TypeString,
				Required: true,
			},
			"db_instance_storage": {
				Type:         schema.TypeInt,
				ValidateFunc: validateIntegerInRange(10, 2000),
				Required:     true,
			},
			"replication_factor": {
				Type:         schema.TypeInt,
				ValidateFunc: validateAllowedIntValue([]int{3, 5, 7}),
				Optional:     true,
				Computed:     true,
			},
			"storage_engine": {
				Type:         schema.TypeString,
				ValidateFunc: validateAllowedStringValue([]string{string(WiredTiger), string(RocksDB)}),
				Optional:     true,
				Computed:     true,
				ForceNew:     true,
			},
			"instance_charge_type": {
				Type:         schema.TypeString,
				ValidateFunc: validateAllowedStringValue([]string{string(PrePaid), string(PostPaid)}),
				Optional:     true,
				ForceNew:     true,
				Computed:     true,
			},
			"period": {
				Type:             schema.TypeInt,
				ValidateFunc:     validateAllowedIntValue([]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 24, 36}),
				Optional:         true,
				Computed:         true,
				DiffSuppressFunc: mongoDBPeriodDiffSuppressFunc,
			},
			"zone_id": {
				Type:     schema.TypeString,
				Optional: true,
				ForceNew: true,
				Computed: true,
			},
			"vswitch_id": {
				Type:     schema.TypeString,
				ForceNew: true,
				Optional: true,
				Computed: true,
			},
			"name": {
				Type:         schema.TypeString,
				Optional:     true,
				ValidateFunc: validateDBInstanceName,
			},
			"security_ip_list": {
				Type:     schema.TypeSet,
				Elem:     &schema.Schema{Type: schema.TypeString},
				Computed: true,
				Optional: true,
			},
			"account_password": {
				Type:      schema.TypeString,
				Optional:  true,
				Sensitive: true,
			},
			"backup_period": {
				Type:     schema.TypeSet,
				Elem:     &schema.Schema{Type: schema.TypeString},
				Optional: true,
				Computed: true,
			},
			"backup_time": {
				Type:         schema.TypeString,
				ValidateFunc: validateAllowedStringValue(BACKUP_TIME),
				Optional:     true,
				Computed:     true,
			},
			//Computed
			"retention_period": {
				Type:     schema.TypeInt,
				Computed: true,
			},
		},
	}
}

func buildMongoDBCreateRequest(d *schema.ResourceData, meta interface{}) (*dds.CreateDBInstanceRequest, error) {
	client := meta.(*connectivity.AliyunClient)

	request := dds.CreateCreateDBInstanceRequest()
	request.RegionId = string(client.Region)
	request.EngineVersion = Trim(d.Get("engine_version").(string))
	request.Engine = "MongoDB"
	request.DBInstanceStorage = requests.NewInteger(d.Get("db_instance_storage").(int))
	request.DBInstanceClass = Trim(d.Get("db_instance_class").(string))
	request.DBInstanceDescription = d.Get("name").(string)
	request.AccountPassword = d.Get("account_password").(string)
	request.ZoneId = d.Get("zone_id").(string)
	request.StorageEngine = d.Get("storage_engine").(string)

	if replication_factor, ok := d.GetOk("replication_factor"); ok {
		request.ReplicationFactor = strconv.Itoa(replication_factor.(int))
	}

	request.NetworkType = string(Classic)
	vswitchId := Trim(d.Get("vswitch_id").(string))
	if vswitchId != "" {
		// check vswitchId in zone
		vpcService := VpcService{client}
		vsw, err := vpcService.DescribeVSwitch(vswitchId)
		if err != nil {
			return nil, WrapError(err)
		}

		if request.ZoneId == "" {
			request.ZoneId = vsw.ZoneId
		} else if strings.Contains(request.ZoneId, MULTI_IZ_SYMBOL) {
			zonestr := strings.Split(strings.SplitAfter(request.ZoneId, "(")[1], ")")[0]
			if !strings.Contains(zonestr, string([]byte(vsw.ZoneId)[len(vsw.ZoneId)-1])) {
				return nil, WrapError(fmt.Errorf("The specified vswitch %s isn't in the multi zone %s.", vsw.VSwitchId, request.ZoneId))
			}
		} else if request.ZoneId != vsw.ZoneId {
			return nil, WrapError(fmt.Errorf("The specified vswitch %s isn't in the zone %s.", vsw.VSwitchId, request.ZoneId))
		}
		request.VSwitchId = vswitchId
		request.NetworkType = strings.ToUpper(string(Vpc))
		request.VpcId = vsw.VpcId
	}

	request.ChargeType = d.Get("instance_charge_type").(string)
	period, ok := d.GetOk("period")
	if PayType(request.ChargeType) == PrePaid && ok {
		request.Period = requests.NewInteger(period.(int))
	}

	request.SecurityIPList = LOCAL_HOST_IP
	if len(d.Get("security_ip_list").(*schema.Set).List()) > 0 {
		request.SecurityIPList = strings.Join(expandStringList(d.Get("security_ip_list").(*schema.Set).List())[:], COMMA_SEPARATED)
	}

	request.ClientToken = buildClientToken(request.GetActionName())
	return request, nil
}

func resourceAlicloudMongoDBInstanceCreate(d *schema.ResourceData, meta interface{}) error {
	client := meta.(*connectivity.AliyunClient)
	ddsService := MongoDBService{client}

	request, err := buildMongoDBCreateRequest(d, meta)
	if err != nil {
		return WrapError(err)
	}

	raw, err := client.WithDdsClient(func(client *dds.Client) (interface{}, error) {
		return client.CreateDBInstance(request)
	})

	if err != nil {
		return WrapErrorf(err, DefaultErrorMsg, "alicloud_mongodb_instance", request.GetActionName(), AlibabaCloudSdkGoERROR)
	}

	response, _ := raw.(*dds.CreateDBInstanceResponse)
	addDebug(request.GetActionName(), response)

	d.SetId(response.DBInstanceId)

	if err := ddsService.WaitForMongoDBInstance(d.Id(), Running, DefaultLongTimeout); err != nil {
		return WrapError(err)
	}

	return resourceAlicloudMongoDBInstanceUpdate(d, meta)
}

func resourceAlicloudMongoDBInstanceRead(d *schema.ResourceData, meta interface{}) error {
	client := meta.(*connectivity.AliyunClient)
	ddsService := MongoDBService{client}

	instance, err := ddsService.DescribeMongoDBInstance(d.Id())
	if err != nil {
		if NotFoundError(err) {
			d.SetId("")
			return nil
		}
		return WrapError(err)
	}

	backupPolicy, err := ddsService.DescribeMongoDBBackupPolicy(d.Id())
	if err != nil {
		return WrapError(err)
	}
	d.Set("backup_time", backupPolicy.PreferredBackupTime)
	d.Set("backup_period", strings.Split(backupPolicy.PreferredBackupPeriod, ","))
	d.Set("retention_period", backupPolicy.BackupRetentionPeriod)

	ips, err := ddsService.GetSecurityIps(d.Id())
	if err != nil {
		return WrapError(err)
	}
	d.Set("security_ip_list", ips)

	d.Set("name", instance.DBInstanceDescription)
	d.Set("engine_version", instance.EngineVersion)
	d.Set("db_instance_class", instance.DBInstanceClass)
	d.Set("db_instance_storage", instance.DBInstanceStorage)
	d.Set("zone_id", instance.ZoneId)
	d.Set("instance_charge_type", instance.ChargeType)
	d.Set("vswitch_id", instance.VSwitchId)
	d.Set("storage_engine", instance.StorageEngine)

	if replication_factor, err := strconv.Atoi(instance.ReplicationFactor); err == nil {
		d.Set("replication_factor", replication_factor)
	}

	return nil
}

func resourceAlicloudMongoDBInstanceUpdate(d *schema.ResourceData, meta interface{}) error {
	client := meta.(*connectivity.AliyunClient)
	ddsService := MongoDBService{client}

	d.Partial(true)

	if d.HasChange("backup_time") || d.HasChange("backup_period") {
		if err := ddsService.MotifyMongoDBBackupPolicy(d); err != nil {
			return WrapError(err)
		}
		d.SetPartial("backup_time")
		d.SetPartial("backup_period")
	}

	if d.IsNewResource() {
		d.Partial(false)
		return resourceAlicloudMongoDBInstanceRead(d, meta)
	}

	if d.HasChange("name") {
		request := dds.CreateModifyDBInstanceDescriptionRequest()
		request.DBInstanceId = d.Id()
		request.DBInstanceDescription = d.Get("name").(string)

		raw, err := client.WithDdsClient(func(ddsClient *dds.Client) (interface{}, error) {
			return ddsClient.ModifyDBInstanceDescription(request)
		})

		if err != nil {
			return WrapErrorf(err, DefaultErrorMsg, d.Id(), request.GetActionName(), AlibabaCloudSdkGoERROR)
		}
		addDebug(request.GetActionName(), raw)
		d.SetPartial("name")
	}

	if d.HasChange("security_ip_list") {
		ipList := expandStringList(d.Get("security_ip_list").(*schema.Set).List())
		ipstr := strings.Join(ipList[:], COMMA_SEPARATED)
		// default disable connect from outside
		if ipstr == "" {
			ipstr = LOCAL_HOST_IP
		}

		if err := ddsService.ModifyMongoDBSecurityIps(d.Id(), ipstr); err != nil {
			return WrapError(err)
		}
		d.SetPartial("security_ip_list")
	}

	if d.HasChange("account_password") {
		err := ddsService.ResetAccountPassword(d, d.Get("account_password").(string))
		if err != nil {
			return WrapError(err)
		}
		d.SetPartial("account_password")
	}

	if d.HasChange("db_instance_storage") ||
		d.HasChange("db_instance_class") ||
		d.HasChange("replication_factor") {

		request := dds.CreateModifyDBInstanceSpecRequest()
		request.DBInstanceId = d.Id()

		request.DBInstanceClass = d.Get("db_instance_class").(string)
		request.DBInstanceStorage = strconv.Itoa(d.Get("db_instance_storage").(int))
		request.ReplicationFactor = strconv.Itoa(d.Get("replication_factor").(int))

		// wait instance status is running before modifying
		if err := ddsService.WaitForMongoDBInstance(d.Id(), Running, DefaultLongTimeout); err != nil {
			return WrapError(err)
		}

		raw, err := client.WithDdsClient(func(ddsClient *dds.Client) (interface{}, error) {
			return ddsClient.ModifyDBInstanceSpec(request)
		})

		if err != nil {
			return WrapErrorf(err, DefaultErrorMsg, d.Id(), request.GetActionName(), AlibabaCloudSdkGoERROR)
		}

		if err := ddsService.WaitForMongoDBInstance(d.Id(), Updating, DefaultLongTimeout); err != nil {
			return WrapError(err)
		}

		addDebug(request.GetActionName(), raw)
		d.SetPartial("db_instance_class")
		d.SetPartial("db_instance_storage")
		d.SetPartial("replication_factor")

		// wait instance status is running after modifying
		if err := ddsService.WaitForMongoDBInstance(d.Id(), Running, DefaultLongTimeout); err != nil {
			return WrapError(err)
		}
	}
	d.Partial(false)
	return resourceAlicloudMongoDBInstanceRead(d, meta)
}

func resourceAlicloudMongoDBInstanceDelete(d *schema.ResourceData, meta interface{}) error {
	client := meta.(*connectivity.AliyunClient)
	ddsService := MongoDBService{client}

	request := dds.CreateDeleteDBInstanceRequest()
	request.DBInstanceId = d.Id()

	err := resource.Retry(10*5*time.Minute, func() *resource.RetryError {
		raw, err := client.WithDdsClient(func(ddsClient *dds.Client) (interface{}, error) {
			return ddsClient.DeleteDBInstance(request)
		})

		if err != nil {
			if ddsService.NotFoundMongoDBInstance(err) {
				return resource.NonRetryableError(err)
			}
			return resource.RetryableError(err)
		}
		addDebug(request.GetActionName(), raw)
		return nil
	})

	if err != nil {
		return WrapErrorf(err, DefaultErrorMsg, d.Id(), request.GetActionName(), AlibabaCloudSdkGoERROR)
	}
	return WrapError(ddsService.WaitForMongoDBInstance(d.Id(), Deleted, DefaultTimeout))
}