Errors with Kubernetes, Zerigo DNS, and AWS EC2

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Über eine Woche
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15/100
Issue-Typ
Bug
Klarheit
Muss geklärt werden
Aktivitätsstatus
Veraltet
Tech-Stack
aws, kubernetes, python
Bereich
authentication, cloud, networking, security

Rechercherichtung

Beginne damit, die Kubernetes-Warnung in libcloud/common/kubernetes.py:237 von den Berichten zu Zerigo DNS- und AWS EC2-Anmeldedaten zu trennen. Führe anschließend die referenzierten Unit-Tests und AndroidSDK-Tests aus, um festzustellen, welche Fehler in Libcloud reproduzierbar sind. Als abgeschlossen gilt die Aufgabe, wenn jeder bestätigte Libcloud-Fehler einen klar abgegrenzten Umfang, Reproduktionsschritte und entweder einen passenden Regressionstest oder eine dokumentierte externe Ursache hat.

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Beschreibung

Summary

DNS resolution failures, credential validation errors, and a user warning about SSL verification. This suggests potential issues with how Libcloud handles connections and credentials across various drivers.

Detailed Information

Apache Libcloud is having issues with multiple cloud APIs due to a combination of network connectivity problems and incorrect credential handling.

  1. Kubernetes Connection Warning
    When attempting to connect to a Kubernetes cluster, a UserWarning is raised:
/usr/lib/python3/dist-packages/libcloud/common/kubernetes.py:237: UserWarning: Kubernetes has its own CA, since you didn't supply a CA certificate be aware that SSL verification will be disabled for this session

...

This warning indicates that SSL certificate verification is being disabled because no CA certificate was provided. This isn't a fatal error, but it's a security concern that should be addressed. The process hangs and requires manual termination.

  1. Zerigo DNS Connection Error

A requests.exceptions.ConnectionError is raised when trying to connect to Zerigo DNS (ns.zerigo.com). The root cause is identified as a socket.gaierror: [Errno -2] Name or service not known, which means the system couldn't resolve the hostname ns.zerigo.com.

requests.exceptions.ConnectionError: HTTPSConnectionPool(host='ns.zerigo.com', port=443): Max retries exceeded with url: /api/1.1/zones.xml (Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x7f45ff3b2b90>: Failed to establish a new connection: [Errno -2] Name or service not known'))

This error indicates a DNS-related issue, preventing the application from establishing a connection to the Zerigo API endpoint.

  1. AWS EC2 Credential Error
    An InvalidCredsError is thrown when using the EC2 driver. The error message AuthFailure: AWS was not able to validate the provided access credentials explicitly states that the credentials used for the AWS API call are invalid.
libcloud.common.types.InvalidCredsError: 'AuthFailure: AWS was not able to validate the provided access credentials'

This points to an issue with the AWS access key or secret key, or an incorrect region configuration.

  1. Android APK Analysis Failure
    Android log (logcat) shows an ApkAnalysisException with the message DOWNLOAD_FILE_NOT_FOUND_EXCEPTION. Suggests that com.example.apache_redcache fails to recognize the APK Android Application itself. Although seemingly unrelated, Libcloud attempts to connect to the server, regardless if it is from a different application.

The VerityUtils errors about failing to measure fs-verity (with errno 1) reinforce that when the APK test is ran the client attempts to connect to the server.

The primary issues are:

DNS Resolution Failure: Libcloud fails to resolve ns.zerigo.com, leading to a ConnectionError. This could be a configuration issue on the client's network or a bug in how Libcloud handles network calls.

Authentication Failure: Libcloud fails to authenticate with AWS EC2 due to invalid credentials, raising an InvalidCredsError.

SSL Security Warning: The Kubernetes driver warns that SSL verification is disabled due to a missing CA certificate.

LibCloud Version: 3.4.1
Python Version: Python 3.11.2
OSxDistro: Linux penguin 6.6.76-08096-g300882a0a131 #1 SMP PREEMPT_DYNAMIC Sat, 24 May 2025 01:23:41 -0700 x86_64 GNU/Linux

Steps to reproduce:

  1. Run UnitTests in Codespace to get venv error
  2. Run AndroidSDK tests in Android Studio to get Finsky_Verity error
  3. Debug .py files with Python modules installed
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