How Can I change instance EC2 from Oregon to Virginia? Is there any form by console? I have one Instance RDS and one Instance EC2.
Take a snapshot of the RDS instance, and either a snapshot of your EBS volume(s) on EC2, or create an AMI from your EC2 instance.
Move the snapshot(s) and AMI to the new region.
Create a new RDS instance in the new region using the RDS snapshot you copied there.
Create a new EC2 instance in the new region from the AMI or EBS snapshots you copied there.
Update your application on your new EC2 instance to point to the new RDS location.
Move any DNS entries or Elastic IP addresses to point to the new servers and shut down the old ones.
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I have an auto-scaling group to create an ec2 instance. How to automate assigning elastic IP to a newly created ec2 instance by ASG via terraform? If asg creates a new instance, its id would change and elastic-ip won't work properly. I have no idea how to do it(
In the start when I was new to aws I was not knowing that how much the selection of regions impact the performance of the system. At that time I created my ec2 and rds instances in sydney but the system will be used in Mexico which is 14000+ km away from Sydney.
Now a lot of configurations are done on those instances. Is there any way I can move these instances to another region?
similarly how i can move other configuration like route 53 and elastic ips as well?
It's not possible to move an existing instance to another subnet, Availability Zone, or VPC. Instead, you can manually migrate the instance by creating a new Amazon Machine Image (AMI) from the source instance. Then, launch a new instance using the new AMI in the desired subnet, Availability Zone, or VPC. Finally, you can reassign any Elastic IP addresses from the source instance to the new instance.
More details in: Move an Amazon EC2 instance to another subnet, Availability Zone, or VPC
When a AWS Auto Scaling Group is scaling out which ec2 instance is considered to be Primary?
Meaning if my ASG is scaling out which ec2 instance ASG considers as a base instance?
Because if I am making changes in the First ec2 instance I created those are not transfered to other new ec2 instance created by ASG
Data is not automatically copied from existing instances to new instances. You can use lifecycle hooks to copy the data or an Amazon RDS database including replicas.
https://docs.aws.amazon.com/autoscaling/ec2/userguide/lifecycle-hooks.html
Wanted to know more about internals of AWS when we autoscale an instance from one tier to another. Does AWS creates an image and spins up new instance and restores the image ? or what exactly happens inside. ?
Amazon EC2 Auto Scaling will either Launch a new instance or Terminate an existing instance. This is known as horizontal scaling. No instance is "upgraded".
In fact, it is not possible to "upgrade" an Amazon EC2 instance. Instead, you need to Stop the instance, change the Instance Type, then Start the instance again. This will launch the instance on a different host, which is dedicated to running the new Instance Type.
The disks used on Amazon EC2 are (typically) Amazon Elastic Block Store (EBS) volumes. These are network-attached volumes that exist separately to the EC2 instance. Thus, the disks are preserved when the instance is stopped and they are automatically reattached to the instance when it is started again.
Can we launch an instance in multiple region in AWS? I know the concept of Elastic IP or taking a snapshot or copying an IAM. Can we do this in other regions without minimal downtime?
It's not possible to launch an EC2 instance in multiple regions. An EC2 instance can only exist in a single availability zone, in a single region.
You can launch multiple copies of your AMI images (EC2 instances) in multiple availability zones, in multiple regions.
Once you have your EC2 instance running in a single availability zones, you can create an AMI image from that EC2 instance and launch copies in other availability zones in the same region. Creating an AMI doesn't have to cause downtime, however, it is recommended to stop the EC2 instance while the AMI image is created. So best to create the AMI image before the EC2 instance needs to be up 100% of the time.
You can also copy that AMI from the original region to another region. Once copied, you can launch new EC2 instances in that second region.
Elastic IP addresses can only be attached to a single EC2 instance in a single region at a time. It is not possible to move or copy Elastic IP addresses between regions.