letsencrypt / letsencrypt/pebble

Return 429 and 503 occasionally

Open
#399 4 comments 6 reactions 0 assignees View on GitHub

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Dominant language
Go
Stars
787
Forks
176
PR merge metrics
No merged PRs in 30d

Description

The Let's Encrypt API (overall, through a combination of Boulder and the load balancers) returns code 503 when the servers are overloaded, and code 429 when a given client is retrying too often, both with a Retry-After header.

Pebble should return those codes occasionally, too.

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

No file or test is named. Start by tracing Pebble's ACME request handling and existing error-response tests, then determine how occasional 429 and 503 responses with Retry-After should be exercised; done means both responses are covered by repeatable tests.

Written by the indexing model from the issue text.

Assessment

Tech stack
go
Domain
api, backend
Issue type
Feature
Difficulty
3/5
Estimated time
1-2 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
48/100

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