Cross-Region AMI Launch in AWS: How to Do It
A cross-region AMI launch means copying an Amazon Machine Image (AMI) from one AWS region to another, so you can launch EC2 instances in the target region.
Why is it Important?
- Disaster Recovery (DR):
If one AWS region becomes unavailable, you can quickly launch instances in another region using the copied AMI.
- Reduced Latency for Users:
Launching EC2 instances closer to your users improves performance and reduces latency.
- Compliance & Data Residency:
Some organizations are required to store and process data in specific regions due to legal or regulatory reasons.
- Global Expansion:
When your application needs to serve users globally, cross-region AMI copying helps you set up infrastructure in multiple regions easily.
Security Aspects:
AMI Encryption:
You can enable EBS encryption while copying the AMI, ensuring that data remains secure.
IAM Permissions:
Only users with the right IAM permissions can copy or launch AMIs across regions, adding a layer of access control.
Access Control:
You can keep the copied AMI private or share it only with specific AWS accounts for secure usage.
Advantages:
- High availability and fault tolerance
- Faster recovery during outages
- Improved application performance for global users
- Easier deployment in multiple regions
Disadvantages:
- Additional storage and data transfer costs
- Manual effort if not automated via scripts or pipelines
- Region-specific service limits may apply
- Keeping AMIs updated across regions requires extra management
1.Log in to your AWS account using the correct credentials. Launch a new server (EC2 instance), or if an instance is already in a running state, you can continue using the existing one.
2. Create an AMI image of the selected EC2 instance to back up its current configuration and data.
3. Provide the basic identification details for the AMI, such as the name and description. Ensure the “Reboot” checkbox is selected or not, if you want the instance to reboot during the image creation for consistency
4. The AMI has been successfully created. Please wait until its status changes to “available,” then you can proceed to copy it to another region.
5. Select the AMI you want to copy, click on the “Actions” button, and choose the “Copy AMI” option from the dropdown menu.
6. Provide the basic details such as the name, description, and destination region. Then, select the copy options according to your requirements and proceed.
7. Add any necessary tags for your AMI, then click on the “Copy AMI” button to start the copying process.
8. Verify that the AMI has been successfully copied
9. Switch to the destination region by selecting it from the region dropdown. Then, go to the AMIs section and verify whether the AMI has been copied successfully.
10. Check the status of the AMI to see if it is “available.” If it is not yet available, please wait until the process completes. .
11. Once the AMI status is “available,” select the AMI and click on “Launch Instance from AMI” to start creating your EC2 instance.
12. .Provide server name and key , then launch the server. And check its work or not
13. Now, check if the previous application is installed. On the main server, Docker is already installed. Select the server and click on “Connect” to access it.
14. Once logged into your server, verify whether Docker (and your application) is installed or not.
It is working correctly
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