[Bug 1250388] Re: maas-ipmi-autodetect-tool fails to detect IPMI on midway

[Robie Basak]

** Description changed:

+ [Impact]
+ 
+ Machines successfully enlist, but IPMI autodetection fails. This causes
+ MAAS to fail to have any power control parameters for enlisted nodes,
+ which means that manual intervention is required and MAAS fails to "Just
+ Work".
+ 
+ [Upstream Fix]
+ 
+ Revision 1717 in trunk.
+ 
+ [Development Fix]
+ 
+ Pending upstream release/snapshot.
+ 
+ [Stable Fix]
+ 
+ A minimal "import glob" patch should work here.
+ 
+ [Regression Potential]
+ 
+ "glob" is a standard Python library function, and there should be no
+ impact in importing it. If some change to maas-ipmi-autodetect-tool were
+ to cause a regression, it would be that the tool would fail, thus
+ causing the power parameters to fail to set in MAAS upon enlistment.
+ This is the use case being fixed by this SRU.
+ 
+ [Original Description]
+ 
  maas    1.4+bzr1693+dfsg-0ubuntu2.2 on Saucy
  
  It appears to me that this would affect Highbank, Midway and anything
  else that does local IPMI detection using this snippet on Saucy.
  
  During enlistment:
  
  Traceback (most recent call last):
-   File "/tmp/sh.6FtsiE/bin/maas-ipmi-autodetect-tool", line 44, in <module>
-     main()
-   File "/tmp/sh.6FtsiE/bin/maas-ipmi-autodetect-tool", line 33, in main
-     (status, ipmi_version) = detect_ipmi()
-   File "/tmp/sh.6FtsiE/bin/maas-ipmi-autodetect-tool", line 18, in detect_ipmi
-     found = glob.glob("/dev/ipmi[0-9]")
+   File "/tmp/sh.6FtsiE/bin/maas-ipmi-autodetect-tool", line 44, in <module>
+     main()
+   File "/tmp/sh.6FtsiE/bin/maas-ipmi-autodetect-tool", line 33, in main
+     (status, ipmi_version) = detect_ipmi()
+   File "/tmp/sh.6FtsiE/bin/maas-ipmi-autodetect-tool", line 18, in detect_ipmi
+     found = glob.glob("/dev/ipmi[0-9]")
  NameError: global name 'glob' is not defined
  
  Looks like this was fixed in upstream trunk in revision 1717. This may
  need a Saucy SRU.
  
  Workaround: add "import glob" to /etc/maas/templates/commissioning-user-
  data/snippets/maas_ipmi_autodetect_tool.py.

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https://bugs.launchpad.net/bugs/1250388

Title:
  maas-ipmi-autodetect-tool fails to detect IPMI on midway

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