Sewer is a programmatic Lets Encrypt(ACME) client
Project description
Sewer
Sewer is a Let’s Encrypt(ACME) client.
It allows you to obtain ssl/tls certificates from Let’s Encrypt.
Sewer currently only supports the DNS mode of validation. The only
currently supported DNS provider is cloudflare but I will add more as
time progresses.
Installation:
pip install sewer
Usage:
import sewer
# 1. to create a new certificate:
client = sewer.Client(domain_name='example.com',
CLOUDFLARE_DNS_ZONE_ID='random',
CLOUDFLARE_EMAIL='example@example.com',
CLOUDFLARE_API_KEY='nsa-grade-api-key')
certificate = client.cert()
certificate_key = client.certificate_key
account_key = client.account_key
print "your certicate is:", certificate
print "your certificate's key is:", certificate_key
print "\n\n"
print "you can write them to a file then add that file to your favourite webserver."
with open('certificate.crt', 'w') as certificate_file:
certificate_file.write(certificate)
with open('certificate.key', 'w') as certificate_key_file:
certificate_key_file.write(certificate_key)
print "your account key is:", account_key
print "IMPORTANT: keep your account key in a very safe and secure place."
with open('account_key.key', 'w') as account_key_file:
account_key_file.write(account_key)
# 2. to renew a certificate:
import sewer
with open('account_key.key', 'r') as account_key_file:
account_key = account_key_file.read()
client = sewer.Client(domain_name='example.com',
CLOUDFLARE_DNS_ZONE_ID='random',
CLOUDFLARE_EMAIL='example@example.com',
CLOUDFLARE_API_KEY='nsa-grade-api-key',
account_key=account_key)
certificate = client.renew()
certificate_key = client.certificate_key
with open('certificate.crt', 'w') as certificate_file:
certificate_file.write(certificate)
with open('certificate.key', 'w') as certificate_key_file:
certificate_key_file.write(certificate_key)
TODO:
make it DNS provider agnostic
support more DNS providers
add robust tests
be able to handle SAN(subject alternative names)
FAQ:
Why another ACME client? I wanted an ACME client that I could use to programmatically(as a library) acquire/get certificates. However I could not find anything satisfactory for use in Python code.
Why is it called Sewer? Because, for the longest time now, getting certificates has felt like wading through sewers. That was before Let’s Encrypt showed up. Also, I really like the Kenyan hip hop artiste going by the name of Kitu Sewer.
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