ansible-navigator Fails to Provide General Information for Images

[laurentiuandries]

ISSUE TYPE

• Bug Report

SUMMARY

When using ansible-navigator with container images, only the "Image information" section works correctly. Attempting to retrieve other information, such as "General information," results in the following error message:

humph. Something went really wrong while introspecting the image.
Details have been added to the log file
[HINT] Please log an issue about this one, it shouldn't have happened

ANSIBLE-NAVIGATOR VERSION

ansible-navigator 24.12.1.dev2

(The issue persists with other versions as well)

CONFIGURATION

LOG FILE

024-12-18T14:54:24.519449+00:00 ERROR 'ansible_navigator.actions.images._parse' Unable to extract introspection from stdout
Traceback (most recent call last):
  File "/home/landries/projects/ansible-navigator/src/ansible_navigator/actions/images.py", line 537, in _parse
    _warnings, json_str = output.split("{", 1)
ValueError: not enough values to unpack (expected 2, got 1)
2024-12-18T14:54:24.520739+00:00 ERROR 'ansible_navigator.actions.images._parse' Image introspection failed (parsed), the return value was:
Traceback (most recent call last):
  File "/home/landries/projects/ansible-navigator/src/ansible_navigator/actions/images.py", line 537, in _parse
    _warnings, json_str = output.split("{", 1)
ValueError: not enough values to unpack (expected 2, got 1)

STEPS TO REPRODUCE

1. Run ansible-navigator with a container image.
2. Attempt to view "General information" or other introspection details.

EXPECTED RESULTS

The "General information" and other details should be displayed without errors.

ACTUAL RESULTS

The error above is shown.

ADDITIONAL INFORMATION

Root Cause (Debug Findings):

Upon debugging, the issue probably lies in src > ansible_navigator > data > image_introspect.py when trying to gather information about system packages.

Code snippet from image_introspect.py:

    try:
        command_runner = CommandRunner()
        commands: list[CmdParser] = [
            AnsibleCollections(),
            AnsibleVersion(),
            OsRelease(),
            RedhatRelease(),
            PythonPackages(),
            # SystemPackages(),
        ]
        results = command_runner.run_multi_thread(commands)

For debugging purposes, SystemPackages() was commented out, leading to the expected, functioning result.
Otherwise, JSON-dumping the result hangs indefinitely.

Related Issues:

#1867
#1795