simple script to translate an `aws ecr get-login` into a Kubernetes `create secret` for `ImagePullSecrets`

ecr-to-image-pull-secrets.py

#!/usr/bin/env python
import argparse
import subprocess
import sys

# expects the output of `aws ecr get-login --region <whatevs>` piped into it, translates command line into `kubectl`
if len(sys.argv) != 2:
    exit('usage: aws ecr get-login | {} <keyname>'.format(sys.argv[0]))

secret_name = sys.argv[1]

parser = argparse.ArgumentParser()
parser.add_argument('-u', '--username')
parser.add_argument('-p', '--password')
parser.add_argument('-e', '--email')
parser.add_argument('url', nargs=1)
command = sys.stdin.readline()

aws_args = parser.parse_args(command.split()[2:])

kube_cmd = "kubectl create secret docker-registry {} --docker-server={} --docker-username={} --docker-password={} --docker-email={}"
print(kube_cmd.format(secret_name, aws_args.url[0], aws_args.username, aws_args.password, aws_args.email))