Using unicode username/password for RabbitMQ agent will result in 401 unauthorised access

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Output of the info page

===============
Agent (v7.21.0)
===============

  Status date: 2020-07-21 19:48:59.566785 UTC
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  Paths
  =====
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=========
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    -----------------
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========
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========

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==========
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=========
APM Agent
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=========
Aggregator
=========
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=========
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=========
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Additional environment details (Operating System, Cloud provider, etc):

Steps to reproduce the issue:

1. Provide a unicode username/passowrd for RabbitMQ instance (basic auth):

instances:
    -  rabbitmq_api_url: http://localhost:15672/api/
       username: myusername
       password: unicode_pass_l£fsS

1. Restart datadog-agent

Describe the results you received: Although the entered username/password are correct I see following error message in logs:

HTTP access denied: user 'myusername' - invalid credentials
Error executing check: Cannot open RabbitMQ API url: http://localhost:15672/api/overview 401 Client Error: Unauthorized for url: http://localhost:15672/api/overview

Describe the results you expected: Since the username/password are correct, I should see no error message and auth should be successful. I checked the username/password on RabbitMQ admin page and it works.

Additional information you deem important (e.g. issue happens only occasionally): It seems that in newer versions, datadog-agent does some kind of decodings on instance values which will cause such problems.

To be exact, I think this is the PR that decode all values and convert them to native strings: https://github.com/DataDog/integrations-core/pull/4730

[moodh]

Hi, with a unicode password all endpoints works from curl/web browser to rabbitmq, just not through the datadog integration. We tested adding encoding correctly in the integration code which made the integration work so its definitely a problem in the integration with that version combination.

My colleague will be gone for a month now and he has a reproducible environment so I’m not able to test more scenarios without him.

[moodh]

Hi, great that you found the cause. Don’t worry about fixing it soon for our sake, we simply changed the password when we realized that was the issue. 😃