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@param cfg: Dictionary of merged user-data configuration (from init.cfg).
@param cloud: Cloud instance from init.cloudify().
@param metadata_only: Boolean, set True to only query cloud meta-data,
returning None if not present in meta-data.
@return: a Tuple of strings <hostname>, <fqdn>. Values can be none when
metadata_only is True and no cfg or metadata provides hostname info.
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For each host a single line should be present with
the following information:
IP_address canonical_hostname [aliases...]
Fields of the entry are separated by any number of blanks and/or tab
characters. Text from a "#" character until the end of the line is a
comment, and is ignored. Host names may contain only alphanumeric
characters, minus signs ("-"), and periods ("."). They must begin with
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Optional aliases provide for name changes, alternate spellings, shorter
hostnames, or generic hostnames (for example, localhost).
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we have to append '.'.
The top level 'invalid' domain is invalid per RFC. And example.com
should also not exist. The '__cloud_init_expected_not_found__' entry will
be resolved inside the search list.
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reopen stdin as /dev/null so even subprocesses or other os level things get
/dev/null as input.
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find devices matching given criteria (via blkid)
criteria can be *one* of:
TYPE=<filesystem>
LABEL=<label>
UUID=<uuid>
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<q� W| S( s� Get all device tags details from blkid.
@param devs: Optional list of device paths you wish to query.
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@return: Dict of key value pairs of info for the device.
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c C s g } | s t | t � r! | S| j d � } | rF | j | � n x� t | d � D]� } | sh qV n t j d | � } | s� qV n | j d � } | j � } t
| � d k r� | j | � qV d d g | d k rV | j | d � qV qV Wt t | � � S( s� Return a list of log file paths from the configuration dictionary.
@param cfg: The cloud-init merged configuration dictionary.
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c C su t j t | � � } t | t | � � sq d j g | D] } t | � ^ q7 � } t d | t | � f � � n | S( Ns , s( (%s) root types expected, got %s instead( t jsont loadsRP RE t tupleR5 R� R^ t type( RS t
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r: d j t | � � SXd S( s1 Handler for types which aren't json serializable.s
ci-b64:{0}s) Warning: redacted unserializable type {0}N( R� RZ t AttributeErrorRb ( t _obj( ( s2 /usr/lib/python2.7/site-packages/cloudinit/util.pyt json_serialize_default? s
c C s} t j | � } xg | j � D]Y \ } } t | t � rJ t | � | | <n t | t � r d j t | � � | | <q q W| S( s Preserialize any discovered binary values to avoid json.dumps issues.
Used only on python 2.7 where default type handling is not honored for
failure to encode binary data. LP: #1801364.
TODO(Drop this function when py2.7 support is dropped from cloud-init)
s
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Mount the device, call method 'callback' passing the directory
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mtype is a filesystem type. it may be a list, string (a single fsname)
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Writes a file with the given content and sets the file mode as specified.
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@param filename: The full path of the file to write.
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@param mode: The filesystem mode to set on the file.
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and stdout will be returned. If False, they will not be redirected.
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update the enviornment for this command with this dictionary.
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