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[Alex <1942152@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

On AWS EC2 (ECS-Optimized image), I have the following write_files
section:

write_files:
  - path: "/home/ec2-user/cloud-provision-host.sh"
    permissions: "0755"
    owner: "ec2-user:ec2-user"
    content: |
      #!/usr/bin/env bash


I'm using the default AWS EC2 instance user ec2-user

The file is created and its content is correct but with the root:root
permissions:

drwxr-xr-x 3 root     root     4096 Aug 31 01:59 .
drwxr-xr-x 3 root     root     4096 Aug 31 01:59 ..
drwx------ 2 ec2-user ec2-user 4096 Aug 31 01:59 .ssh
-rwxr-xr-x 1 root     root      555 Aug 31 01:59 cloud-provision-host.sh

Logs:

Aug 31 01:59:45 cloud-init[3562]: util.py[WARNING]: Running module write-files (<module 'cloudinit.config.cc_write_files' from '/usr/lib/python2.7/site-packages/cloudinit/config/cc_write_files.pyc'>) failed
Aug 31 01:59:45 cloud-init[3562]: util.py[DEBUG]: Running module write-files (<module 'cloudinit.config.cc_write_files' from '/usr/lib/python2.7/site-packages/cloudinit/config/cc_write_files.pyc'>) failed
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/cloudinit/stages.py", line 851, in _run_modules
    freq=freq)
  File "/usr/lib/python2.7/site-packages/cloudinit/cloud.py", line 54, in run
    return self._runners.run(name, functor, args, freq, clear_on_fail)
  File "/usr/lib/python2.7/site-packages/cloudinit/helpers.py", line 187, in run
    results = functor(*args)
  File "/usr/lib/python2.7/site-packages/cloudinit/config/cc_write_files.py", line 82, in handle
    write_files(name, files)
  File "/usr/lib/python2.7/site-packages/cloudinit/config/cc_write_files.py", line 122, in write_files
    util.chownbyname(path, u, g)
  File "/usr/lib/python2.7/site-packages/cloudinit/util.py", line 1461, in chownbyname
    raise OSError("Unknown user or group: %s" % (e))
OSError: Unknown user or group: 'getpwnam(): name not found: ec2-user'

How this may happen that the default user is not found?

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

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https://bugs.launchpad.net/bugs/1942152

Title:
  write_files owner directive doesn't set the owner

Status in cloud-init:
  New

Bug description:
  On AWS EC2 (ECS-Optimized image), I have the following write_files
  section:

  write_files:
    - path: "/home/ec2-user/cloud-provision-host.sh"
      permissions: "0755"
      owner: "ec2-user:ec2-user"
      content: |
        #!/usr/bin/env bash

  
  I'm using the default AWS EC2 instance user ec2-user

  The file is created and its content is correct but with the root:root
  permissions:

  drwxr-xr-x 3 root     root     4096 Aug 31 01:59 .
  drwxr-xr-x 3 root     root     4096 Aug 31 01:59 ..
  drwx------ 2 ec2-user ec2-user 4096 Aug 31 01:59 .ssh
  -rwxr-xr-x 1 root     root      555 Aug 31 01:59 cloud-provision-host.sh

  Logs:

  Aug 31 01:59:45 cloud-init[3562]: util.py[WARNING]: Running module write-files (<module 'cloudinit.config.cc_write_files' from '/usr/lib/python2.7/site-packages/cloudinit/config/cc_write_files.pyc'>) failed
  Aug 31 01:59:45 cloud-init[3562]: util.py[DEBUG]: Running module write-files (<module 'cloudinit.config.cc_write_files' from '/usr/lib/python2.7/site-packages/cloudinit/config/cc_write_files.pyc'>) failed
  Traceback (most recent call last):
    File "/usr/lib/python2.7/site-packages/cloudinit/stages.py", line 851, in _run_modules
      freq=freq)
    File "/usr/lib/python2.7/site-packages/cloudinit/cloud.py", line 54, in run
      return self._runners.run(name, functor, args, freq, clear_on_fail)
    File "/usr/lib/python2.7/site-packages/cloudinit/helpers.py", line 187, in run
      results = functor(*args)
    File "/usr/lib/python2.7/site-packages/cloudinit/config/cc_write_files.py", line 82, in handle
      write_files(name, files)
    File "/usr/lib/python2.7/site-packages/cloudinit/config/cc_write_files.py", line 122, in write_files
      util.chownbyname(path, u, g)
    File "/usr/lib/python2.7/site-packages/cloudinit/util.py", line 1461, in chownbyname
      raise OSError("Unknown user or group: %s" % (e))
  OSError: Unknown user or group: 'getpwnam(): name not found: ec2-user'

  How this may happen that the default user is not found?

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