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dms.go
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dms.go
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package dms
import (
"errors"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/databasemigrationservice"
)
const (
T2_MICRO = "dms.t2.micro"
T2_SMALL = "dms.t2.small"
T2_MEDIUM = "dms.t2.medium"
T2_LARGE = "dms.t2.large"
C4_LARGE = "dms.c4.large"
C4_XLARGE = "dms.c4.xlarge"
C4_2XLARGE = "dms.c4.2xlarge"
C4_4XLARGE = "dms.c4.4xlarge"
)
// ModifyReplicationInstanceClass ...
//
// Todo
func ModifyReplicationInstanceClass(awsSession *session.Session, arn string, class string) error {
svc := databasemigrationservice.New(awsSession)
input := &databasemigrationservice.ModifyReplicationInstanceInput{
ApplyImmediately: aws.Bool(true),
ReplicationInstanceArn: aws.String(arn),
ReplicationInstanceClass: aws.String(class),
}
switch class {
case T2_MICRO:
case T2_SMALL:
case T2_MEDIUM:
case T2_LARGE:
case C4_LARGE:
case C4_XLARGE:
case C4_2XLARGE:
case C4_4XLARGE:
default:
return errors.New("Invalid instance class: " + class)
}
_, err := svc.ModifyReplicationInstance(input)
if err != nil {
return err
}
return nil
}
// CheckReplicationInstanceClassAndStatus ...
//
// Todo
func CheckReplicationInstanceClassAndStatus(awsSession *session.Session, arn string, class string) error {
svc := databasemigrationservice.New(awsSession)
input := &databasemigrationservice.DescribeReplicationInstancesInput{}
results, err := svc.DescribeReplicationInstances(input)
if err != nil {
return err
}
for _, replicationInstance := range results.ReplicationInstances {
if *replicationInstance.ReplicationInstanceArn == arn {
if *replicationInstance.ReplicationInstanceClass != class {
return errors.New("Current class does not match expected: current: " + *replicationInstance.ReplicationInstanceClass + ", expected: " + class)
}
if *replicationInstance.ReplicationInstanceStatus != "available" {
return errors.New("Replication instance not available: status: " + *replicationInstance.ReplicationInstanceStatus)
}
return nil
}
}
return errors.New("Instance not found: " + arn)
}
// StartReplicationTask ...
//
// Todo
func StartReplicationTask(awsSession *session.Session, arn string) error {
svc := databasemigrationservice.New(awsSession)
input := &databasemigrationservice.StartReplicationTaskInput{
ReplicationTaskArn: aws.String(arn),
StartReplicationTaskType: aws.String("start-replication"),
}
_, err := svc.StartReplicationTask(input)
if err != nil {
return err
}
return nil
}
// ResumeReplicationTask ...
//
// Todo
func ResumeReplicationTask(awsSession *session.Session, arn string) error {
svc := databasemigrationservice.New(awsSession)
input := &databasemigrationservice.StartReplicationTaskInput{
ReplicationTaskArn: aws.String(arn),
StartReplicationTaskType: aws.String("resume-processing"),
}
_, err := svc.StartReplicationTask(input)
if err != nil {
return err
}
return nil
}
// ReloadReplicationTask ...
//
// Todo
func ReloadReplicationTask(awsSession *session.Session, arn string) error {
svc := databasemigrationservice.New(awsSession)
input := &databasemigrationservice.StartReplicationTaskInput{
ReplicationTaskArn: aws.String(arn),
StartReplicationTaskType: aws.String("reload-target"),
}
_, err := svc.StartReplicationTask(input)
if err != nil {
return err
}
return nil
}
// CheckReplicationTaskStatus ...
//
// Todo
func CheckReplicationTaskStatus(awsSession *session.Session, arn string) error {
svc := databasemigrationservice.New(session.New())
input := &databasemigrationservice.DescribeReplicationTasksInput{}
results, err := svc.DescribeReplicationTasks(input)
if err != nil {
return err
}
for _, replicationTask := range results.ReplicationTasks {
if *replicationTask.ReplicationTaskArn == arn {
if *replicationTask.Status == "stopped" {
return nil
}
return errors.New("Task not stopped: status: " + *replicationTask.Status)
}
}
return errors.New("Task not found: " + arn)
}