晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 .
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Directory :  /usr/share/doc/cloud-init/

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Current File : //usr/share/doc/cloud-init/status.txt
cloud-init will keep a 'status' file up to date for other applications
wishing to use it to determine cloud-init status.

It will manage 2 files:
 status.json
 result.json

The files will be written to /var/lib/cloud/data/ .
A symlink will be created in /run/cloud-init. The link from /run is to ensure
that if the file exists, it is not stale for this boot.

status.json's format is:
   {
    'v1': {
     'init': {
       errors: []      # list of strings for each error that occurred
       start: float # time.time() that this stage started or None
       end: float # time.time() that this stage finished or None
     },
     'init-local': {
       'errors': [], 'start': <float>, 'end' <float> # (same as 'init' above)
     },
     'modules-config': {
       'errors': [], 'start': <float>, 'end' <float> # (same as 'init' above)
     },
     'modules-final': {
       'errors': [], 'start': <float>, 'end' <float> # (same as 'init' above)
     },
     'datasource': string describing datasource found or None
     'stage': string representing stage that is currently running
              ('init', 'init-local', 'modules-final', 'modules-config', None)
              if None, then no stage is running.  Reader must read the start/end
              of each of the above stages to determine the state.
   }

result.json's format is:
   {
    'v1': {
     'datasource': string describing the datasource found
     'errors': [] # list of errors reported
    }
   }

Thus, to determine if cloud-init is finished:
 fin = "/run/cloud-init/result.json"
 if os.path.exists(fin):
   ret = json.load(open(fin, "r"))
   if len(ret['v1']['errors']):
     print("Finished with errors:" + "\n".join(ret['v1']['errors']))
   else:
     print("Finished no errors")
 else:
   print("Not Finished")

haha - 2025