How to Make an AMI Public

To make an AMI public

Add the all group to the AMI's launchPermission.
```
PROMPT>  ec2-modify-image-attribute <ami_id> --launch-permission -a all
```
The <ami_id> parameter is the ID of the AMI.

To check the launch permissions of an AMI

Enter the following command, where <ami_id> is the ID of the AMI.
```
PROMPT> ec2-describe-image-attribute <ami_id> -l
```

To make an AMI private again

Remove the all group from its launch permissions, where <ami_id> is the ID of the AMI.
```
PROMPT> ec2-modify-image-attribute <ami_id> -l -r all
```
This will not affect any explicit launch permissions for the AMI or any running instances of the AMI.

Example

This example makes the ami-2bb65342 AMI public.

PROMPT>  ec2-modify-image-attribute ami-2bb65342  --launch-permission -a all
launchPermission        ami-2bb65342    ADD     group   all

This examples displays the launch permissions of the ami-2bb65342 AMI.

PROMPT> ec2-describe-image-attribute ami-2bb65342 -l
launchPermission        ami-2bb65342    group   all

This example removes the all group from the permissions of the ami-2bb65342 AMI, making it private.

PROMPT> ec2-modify-image-attribute ami-2bb65342 -l -r all
launchPermission        ami-2bb65342    REMOVE  group   all