salt-master errors in LXC container #66586

Mogaba · 2024-05-23T12:42:26Z

Mogaba
May 23, 2024

Hello,

I'm trying to run Salt Master in an LXC container in Proxmox and I get the following errors when starting salt-master service. The service still starts despite the errors. Could someone explain what these errors mean?

Container: ALT Linux P10
Salt version: 3007.0

Starting The Salt Master Server...
Started The Salt Master Server.
[ERROR   ] Publish server binding pub to /var/run/salt/master/master_event_pub.ipc ssl=None
[ERROR   ] An un-handled exception from the multiprocessing process 'MWorker-0' was caught:
Traceback (most recent call last):
  File "/usr/lib/python3/site-packages/salt/utils/process.py", line 994, in wrapped_run_func
    return run_func()
  File "/usr/lib/python3/site-packages/salt/master.py", line 1308, in run
    self.clear_funcs = ClearFuncs(
  File "/usr/lib/python3/site-packages/salt/master.py", line 2156, in __init__
    self.mminion = salt.minion.MasterMinion(
  File "/usr/lib/python3/site-packages/salt/minion.py", line 989, in __init__
    self.opts = salt.config.mminion_config(
  File "/usr/lib/python3/site-packages/salt/config/__init__.py", line 2353, in mminion_config
    opts["grains"] = salt.loader.grains(opts)
  File "/usr/lib/python3/site-packages/salt/loader/__init__.py", line 1154, in grains
    ret = funcs[key]()
  File "/usr/lib/python3/site-packages/salt/loader/lazy.py", line 160, in __call__
    ret = self.loader.run(run_func, *args, **kwargs)
  File "/usr/lib/python3/site-packages/salt/loader/lazy.py", line 1233, in run
    return self._last_context.run(self._run_as, _func_or_method, *args, **kwargs)
  File "/usr/lib/python3/site-packages/salt/loader/lazy.py", line 1248, in _run_as
    return _func_or_method(*args, **kwargs)
  File "/usr/lib/python3/site-packages/salt/grains/core.py", line 2761, in os_data
    grains.update(_virtual(grains))
  File "/usr/lib/python3/site-packages/salt/grains/core.py", line 1115, in _virtual
    if "QEMU Virtual CPU" in fhr.read():
OSError: [Errno 22] Invalid argument
Process MWorker-0:
Traceback (most recent call last):
  File "/usr/lib64/python3.9/multiprocessing/process.py", line 315, in _bootstrap
    self.run()
  File "/usr/lib/python3/site-packages/salt/utils/process.py", line 994, in wrapped_run_func
    return run_func()
  File "/usr/lib/python3/site-packages/salt/master.py", line 1308, in run
    self.clear_funcs = ClearFuncs(
  File "/usr/lib/python3/site-packages/salt/master.py", line 2156, in __init__
    self.mminion = salt.minion.MasterMinion(
  File "/usr/lib/python3/site-packages/salt/minion.py", line 989, in __init__
    self.opts = salt.config.mminion_config(
  File "/usr/lib/python3/site-packages/salt/config/__init__.py", line 2353, in mminion_config
    opts["grains"] = salt.loader.grains(opts)
  File "/usr/lib/python3/site-packages/salt/loader/__init__.py", line 1154, in grains
    ret = funcs[key]()
  File "/usr/lib/python3/site-packages/salt/loader/lazy.py", line 160, in __call__
    ret = self.loader.run(run_func, *args, **kwargs)
  File "/usr/lib/python3/site-packages/salt/loader/lazy.py", line 1233, in run
    return self._last_context.run(self._run_as, _func_or_method, *args, **kwargs)
  File "/usr/lib/python3/site-packages/salt/loader/lazy.py", line 1248, in _run_as
    return _func_or_method(*args, **kwargs)
  File "/usr/lib/python3/site-packages/salt/grains/core.py", line 2761, in os_data
    grains.update(_virtual(grains))
  File "/usr/lib/python3/site-packages/salt/grains/core.py", line 1115, in _virtual
    if "QEMU Virtual CPU" in fhr.read():
OSError: [Errno 22] Invalid argument
[ERROR   ] An un-handled exception from the multiprocessing process 'MWorker-2' was caught:
Traceback (most recent call last):
  File "/usr/lib/python3/site-packages/salt/utils/process.py", line 994, in wrapped_run_func
    return run_func()
  File "/usr/lib/python3/site-packages/salt/master.py", line 1308, in run
    self.clear_funcs = ClearFuncs(
  File "/usr/lib/python3/site-packages/salt/master.py", line 2156, in __init__
    self.mminion = salt.minion.MasterMinion(
  File "/usr/lib/python3/site-packages/salt/minion.py", line 989, in __init__
    self.opts = salt.config.mminion_config(
  File "/usr/lib/python3/site-packages/salt/config/__init__.py", line 2353, in mminion_config
    opts["grains"] = salt.loader.grains(opts)
  File "/usr/lib/python3/site-packages/salt/loader/__init__.py", line 1154, in grains
    ret = funcs[key]()
  File "/usr/lib/python3/site-packages/salt/loader/lazy.py", line 160, in __call__
    ret = self.loader.run(run_func, *args, **kwargs)
  File "/usr/lib/python3/site-packages/salt/loader/lazy.py", line 1233, in run
    return self._last_context.run(self._run_as, _func_or_method, *args, **kwargs)
  File "/usr/lib/python3/site-packages/salt/loader/lazy.py", line 1248, in _run_as
    return _func_or_method(*args, **kwargs)
  File "/usr/lib/python3/site-packages/salt/grains/core.py", line 2691, in os_data
    grains.update(_linux_cpudata())
  File "/usr/lib/python3/site-packages/salt/grains/core.py", line 201, in _linux_cpudata
    for line in _fp:
OSError: [Errno 22] Invalid argument
Process MWorker-2:
Traceback (most recent call last):
  File "/usr/lib64/python3.9/multiprocessing/process.py", line 315, in _bootstrap
    self.run()
  File "/usr/lib/python3/site-packages/salt/utils/process.py", line 994, in wrapped_run_func
    return run_func()
  File "/usr/lib/python3/site-packages/salt/master.py", line 1308, in run
    self.clear_funcs = ClearFuncs(
  File "/usr/lib/python3/site-packages/salt/master.py", line 2156, in __init__
    self.mminion = salt.minion.MasterMinion(
  File "/usr/lib/python3/site-packages/salt/minion.py", line 989, in __init__
    self.opts = salt.config.mminion_config(
  File "/usr/lib/python3/site-packages/salt/config/__init__.py", line 2353, in mminion_config
    opts["grains"] = salt.loader.grains(opts)
  File "/usr/lib/python3/site-packages/salt/loader/__init__.py", line 1154, in grains
    ret = funcs[key]()
  File "/usr/lib/python3/site-packages/salt/loader/lazy.py", line 160, in __call__
    ret = self.loader.run(run_func, *args, **kwargs)
  File "/usr/lib/python3/site-packages/salt/loader/lazy.py", line 1233, in run
    return self._last_context.run(self._run_as, _func_or_method, *args, **kwargs)
  File "/usr/lib/python3/site-packages/salt/loader/lazy.py", line 1248, in _run_as
    return _func_or_method(*args, **kwargs)
  File "/usr/lib/python3/site-packages/salt/grains/core.py", line 2691, in os_data
    grains.update(_linux_cpudata())
  File "/usr/lib/python3/site-packages/salt/grains/core.py", line 201, in _linux_cpudata
    for line in _fp:
OSError: [Errno 22] Invalid argument

dafyddj · 2024-05-23T13:54:46Z

dafyddj
May 23, 2024
Collaborator

It looks like these are permission errors i.e. that Salt cannot read certain system files such as /proc/cpuinfo within your containers.

3 replies

bdrx312 May 24, 2024

That's odd. Why does it get an error 22 when trying to read the file instead of an errno 13 permission denied PermissionError when calling open on the file?

dafyddj May 24, 2024
Collaborator

Maybe not permission errors (I responded with haste) but some kind of problem reading or accessing those files.

bdrx312 May 25, 2024

The problem sounds similar to this https://stackoverflow.com/questions/58506448/docker-and-fcntl-oserror-errno-22-invalid-argument

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salt-master errors in LXC container #66586

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Mogaba May 23, 2024

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dafyddj May 23, 2024 Collaborator

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bdrx312 May 24, 2024

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dafyddj May 24, 2024 Collaborator

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bdrx312 May 25, 2024

Mogaba
May 23, 2024

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dafyddj
May 23, 2024
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dafyddj May 24, 2024
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