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[Marco Morais <mmorais@xxxxxxxxxxxxx>]

Public bug reported:

I have a yaml file in a local directory (cloud-init.yaml) which contains
2 modules (write_files, runcmd). I am exercising the write_files module
using the following command:

$ sudo cloud-init --debug --file cloud-init.yaml single --name
cc_write_files

>From the debug output I can see that the local file (/home/mmorais
/cloud-init.yaml) is not getting merged into the master config file
(/var/lib/cloud/instance/cloud-config.txt).

2014-05-05 21:25:45,367 - __init__.py[DEBUG]: Merging using located merger 'DictMerger: (method=no_replace,recurse_str=False,recurse_dict=True,recurse_array=False,allow_delete=False)' since it had method '_on_dict'
2014-05-05 21:25:45,368 - util.py[DEBUG]: Reading from /home/mmorais/cloud-init.yaml (quiet=False)
2014-05-05 21:25:45,368 - util.py[DEBUG]: Read 407 bytes from /home/mmorais/cloud-init.yaml
2014-05-05 21:25:45,368 - util.py[DEBUG]:  < #cloud-config
2014-05-05 21:25:45,368 - util.py[DEBUG]:  < write_files:
2014-05-05 21:25:45,368 - util.py[DEBUG]:  < -   content: |
2014-05-05 21:25:45,368 - util.py[DEBUG]:  <         #!/bin/sh
2014-05-05 21:25:45,368 - util.py[DEBUG]:  <         date +"%s" > /home/y/tmp/now.txt
2014-05-05 21:25:45,368 - util.py[DEBUG]:  <     path: /home/y/tmp/upload-boot-time.sh
2014-05-05 21:25:45,368 - util.py[DEBUG]:  <     permissions: '0755'
2014-05-05 21:25:45,369 - util.py[DEBUG]:  < runcmd:
2014-05-05 21:25:45,369 - util.py[DEBUG]:  < - ['/home/y/tmp/upload-boot-time.sh']
2014-05-05 21:25:45,369 - util.py[DEBUG]: Attempting to load yaml from string of length 407 with allowed root types (<type 'dict'>,)
2014-05-05 21:25:45,371 - util.py[DEBUG]: Reading from /var/lib/cloud/instance/cloud-config.txt (quiet=False)
2014-05-05 21:25:45,371 - util.py[DEBUG]: Read 0 bytes from /var/lib/cloud/instance/cloud-config.txt
2014-05-05 21:25:45,371 - util.py[DEBUG]: Attempting to load yaml from string of length 0 with allowed root types (<type 'dict'>,)
2014-05-05 21:25:45,371 - util.py[DEBUG]: load_yaml given empty string, returning default

As a workaround I am copying /home/mmorais/cloud-init.yaml to
/var/lib/cloud/instance/cloud-config.txt which defeats the purpose of
being able to run cloud-init on arbitrary files for testing.

Also note that the command above does not work at all unless I specify
*cc_write_files* instead of *write_files*.

I am running cloud-init (0.7.4).

** Affects: cloud-init
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1316323

Title:
  cloud-init-single-module-fails-to-merge

Status in Init scripts for use on cloud images:
  New

Bug description:
  I have a yaml file in a local directory (cloud-init.yaml) which
  contains 2 modules (write_files, runcmd). I am exercising the
  write_files module using the following command:

  $ sudo cloud-init --debug --file cloud-init.yaml single --name
  cc_write_files

  From the debug output I can see that the local file (/home/mmorais
  /cloud-init.yaml) is not getting merged into the master config file
  (/var/lib/cloud/instance/cloud-config.txt).

  2014-05-05 21:25:45,367 - __init__.py[DEBUG]: Merging using located merger 'DictMerger: (method=no_replace,recurse_str=False,recurse_dict=True,recurse_array=False,allow_delete=False)' since it had method '_on_dict'
  2014-05-05 21:25:45,368 - util.py[DEBUG]: Reading from /home/mmorais/cloud-init.yaml (quiet=False)
  2014-05-05 21:25:45,368 - util.py[DEBUG]: Read 407 bytes from /home/mmorais/cloud-init.yaml
  2014-05-05 21:25:45,368 - util.py[DEBUG]:  < #cloud-config
  2014-05-05 21:25:45,368 - util.py[DEBUG]:  < write_files:
  2014-05-05 21:25:45,368 - util.py[DEBUG]:  < -   content: |
  2014-05-05 21:25:45,368 - util.py[DEBUG]:  <         #!/bin/sh
  2014-05-05 21:25:45,368 - util.py[DEBUG]:  <         date +"%s" > /home/y/tmp/now.txt
  2014-05-05 21:25:45,368 - util.py[DEBUG]:  <     path: /home/y/tmp/upload-boot-time.sh
  2014-05-05 21:25:45,368 - util.py[DEBUG]:  <     permissions: '0755'
  2014-05-05 21:25:45,369 - util.py[DEBUG]:  < runcmd:
  2014-05-05 21:25:45,369 - util.py[DEBUG]:  < - ['/home/y/tmp/upload-boot-time.sh']
  2014-05-05 21:25:45,369 - util.py[DEBUG]: Attempting to load yaml from string of length 407 with allowed root types (<type 'dict'>,)
  2014-05-05 21:25:45,371 - util.py[DEBUG]: Reading from /var/lib/cloud/instance/cloud-config.txt (quiet=False)
  2014-05-05 21:25:45,371 - util.py[DEBUG]: Read 0 bytes from /var/lib/cloud/instance/cloud-config.txt
  2014-05-05 21:25:45,371 - util.py[DEBUG]: Attempting to load yaml from string of length 0 with allowed root types (<type 'dict'>,)
  2014-05-05 21:25:45,371 - util.py[DEBUG]: load_yaml given empty string, returning default

  As a workaround I am copying /home/mmorais/cloud-init.yaml to
  /var/lib/cloud/instance/cloud-config.txt which defeats the purpose of
  being able to run cloud-init on arbitrary files for testing.

  Also note that the command above does not work at all unless I specify
  *cc_write_files* instead of *write_files*.

  I am running cloud-init (0.7.4).

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