Import existing PEM file as EC2 Key Pair with boto3 & paramiko

import_key.py

import os
import base64
import struct

import boto3
import paramiko
from paramiko.util import deflate_long


PEM_FILEPATH = '~/.ssh/test-key.pem'

ec2 = boto2.resource('ec2')
key = paramiko.RSAKey.from_private_key_file(PEM_FILEPATH)

output = b''
parts = [b'ssh-rsa', deflate_long(key.public_numbers.e), deflate_long(key.public_numbers.n)]

for part in parts:
    output += struct.pack('>I', len(part)) + part
public_key = b'ssh-rsa ' + base64.b64encode(output) + b'\n'
# alternatively? : printable_key = '%s %s' %(key.get_name(), base64.b64encode(key.asbytes()).replace('\n', ''))

key_name = os.path.splitext(os.path.basename(PEM_FILEPATH))[0]
aws_key_pair = ec2.import_key_pair(KeyName=key_name, PublicKeyMaterial=public_key)

aws_key_pair.delete()