How to use boto3 to create an AMI from an Amazon EBS Snapshot

Question

While creating an image (AMI) in AWS using boto3 lib, providing the following parameters:

ec2.create_image(Name=name, BlockDeviceMappings=[{'DeviceName':device_name,'Ebs':{'SnapshotId':snapshot_id, 'DeleteOnTermination': delete_on_term,
            'VolumeSize':10, 'VolumeType':'gp2'}}])

I'm getting this error: Missing required parameter in input: "InstanceId" But when I create an image from the User Interface, no Instance Id is required.

In the picture below, you can see that I can create the image from 'Snapshots' page, without specifying instance Id.

Is anyone aware of a workaround? Thanks.

Answer 1

use this function register_image to create image from snapshots

response = client.register_image(
    ImageLocation='string',
    Architecture='i386'|'x86_64'|'arm64',
    BlockDeviceMappings=[
        {
            'DeviceName': 'string',
            'VirtualName': 'string',
            'Ebs': {
                'DeleteOnTermination': True|False,
                'Iops': 123,
                'SnapshotId': 'string',
                'VolumeSize': 123,
                'VolumeType': 'standard'|'io1'|'gp2'|'sc1'|'st1',
                'Encrypted': True|False,
                'KmsKeyId': 'string'
            },
            'NoDevice': 'string'
        },
    ],
    Description='string',
    DryRun=True|False,
    EnaSupport=True|False,
    KernelId='string',
    Name='string',
    BillingProducts=[
        'string',
    ],
    RamdiskId='string',
    RootDeviceName='string',
    SriovNetSupport='string',
    VirtualizationType='string'
)