Anchor

Javascript client for Anchor PKI. See https://anchor.dev/ for details.

Configuration

The Following environment variables are available to configure the default AutoCert

• HTTPS_PORT - the TCP numerical port to bind SSL to.
• ACME_ALLOW_IDENTIFIERS - A comma separated list of hostnames for provisioning certs
• ACME_DIRECTORY_URL - the ACME provider's directory
• ACME_KID - your External Account Binding (EAB) KID for authenticating with the ACME directory above with an
• ACME_HMAC_KEY - your EAB HMAC_KEY for authenticating with the ACME directory above
• ACME_RENEW_BEFORE_SECONDS - optional Start a renewal this number number of seconds before the cert expires. This defaults to 30 days (2592000 seconds)
• ACME_RENEW_BEFORE_FRACTION - optional Start the renewal when this fraction of a certificate's valid window is left. This defaults to 0.5, which means when the cert is in the last 50% of its lifespan a renewal is attempted.
• AUTO_CERT_CHECK_EVERY - optional the number of seconds to wait between checking if the certificate has expired. This defaults to 1 hour (3600 seconds)

If both ACME_RENEW_BEFORE_SECONDS and ACME_RENEW_BEFORE_FRACTION are set, the one that causes the renewal to take place earlier is used.

Example:

• Cert start (not_before) moment is : 2023-05-24 20:53:11 UTC
• Cert expiration (not_after) moment is : 2023-06-21 20:53:10 UTC
• ACME_RENEW_BEFORE_SECONDS is 1209600 (14 days)
• ACME_RENEW_BEFORE_FRACTION is 0.25 - which equates to a before seconds value of 604799 (~7 days)

The possible moments to start renewing are:

• 14 days before expiration moment - 2023-06-07 20:53:10 UTC
• when 25% of the valid time is left - 2023-06-14 20:53:11 UTC

Currently the AutoCert::Manager will use whichever is earlier.

Example configuration

HTTPS_PORT=44300
ACME_ALLOW_IDENTIFIERS=my.lcl.host,*.my.lcl.host
ACME_DIRECTORY_URL=https://acme-v02.api.letsencrypt.org/directory
ACME_KID=XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
ACME_HMAC_KEY=XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Run Tests

• All tests yarn run test
• With coverage yarn run coverage

To isolate a single test, this is all mocha - so use mocha's approach of isolation by marking it.only(...).

Record new test recordings

This code base tests against polly.js recordings. These may need to be regenerated periodically.

Note: for the javascript recordings, the KID is baked into the request data. If you regenerate the EAB token, replace the KID value in the test code (step 5 ). It won't be loaded from ANCHOR_KID in the shell environment!

1. check out the code base locally

2. go to https://anchor.dev/autocert-cab3bc/development/x509/ca/acme

3. In the Server Setup section, generate new tokens, and take note of the ACME_DIRECTORY_URL and ACME_CONTACT information.

4. Make a local .env file or similar containing:

    export ACME_DIRECTORY_URL='https://anchor.dev/autocert-cab3bc/development/x509/ca/acme'
    export ACME_CONTACT=.....
    export ACME_HMAC_KEY=XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

5. Update the test/fixtures.js with the newly generated kid and hmacKey values

6. Grep for aae_ to see if there are any other hard-coded KIDs in the codebase.

7. on the command line execute:

    $ . .env
    $ rm -rf test/recordings
    $ yarn run test

8. commit the new recordings.

9. DELETE THE EAB TOKENS FROM anchor.dev, Go to https://anchor.dev/autocert-cab3bc/development/x509/ca/crt/E476:3520:C4B8/acme and delete the EAB tokens used to generate this run.

License

The gem is available as open source under the terms of the MIT License