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Re: Help request: ec2-user vs root user for cloud-init


On Tue, 24 Apr 2012, jvlcek wrote:

> Hey Scott,
> I've made some progress.
> If I manually create the ec2-user then run
> "cloud-init start" I can get things to work.
> I can also userdelete the ec2-user and specify
> user: root in /etc/cloud/cloud.cfg
> It also seems as if only the things specified under
> cloud_init_modules: in /etc/cloud/cloud.cfg will run.

There are 3 sets of modules, separate really because of when the run.
  cloud_init_modules, cloud_config_modules, cloud_final_modules

 * cloud_init_modules: this list of modules run immediately upon there
   being a data source found.  They basically block large parts of boot.
   They can't really rely on network being up.
 * cloud_config_modules: this list runs almost immediately upon static
   network being up (where "static" means all with explicit configuration
   existing in /etc, including dhcp)
 * cloud_final_modules: this list runs basically at tradition unix
   rc.local time frame, ie "very late in boot"

> If I remove the headings "cloud_config_modules:"
> and "cloud_final_modules:" I can get all the
> handlers specified to run.
> e.g.:
>     % diff /etc/cloud/cloud.cfg.ORIG /etc/cloud/cloud.cfg
>     1,2c1,2
> < user: ec2-user
> < disable_root: 1

I suppose explicit use of 'root' as the user should work.  Its not a path
that is used or really advised, but I understand your interest, and we can
make it work if it does not.

> <
> < cloud_config_modules:
>     29,30d26
> <
> < cloud_final_modules:

I'm not really sure what you did there, but it seems like you made all
modules into cloud-init modules, meaning they'll run earlier in boot then
they've expected to run, and are likely to fail.

> The work I am doing is based on the fedora bits Garret Holstrom
> of Eucalyptus had done. Which do have a Fedora version of the
> cloud.cfg file.
> Fedora archive.  http://pkgs.fedoraproject.org/gitweb/?p=cloud-init.git
> I'll be investigating why I have to remove the headings
> from the /etc/cloud/cloud.cfg  over the coming days.

It seems to me that cloud-config.service is not getting invoked.  I've
actually never debugged systemd jobs, but it would appear that maybe:
 * cloud-config.target is not being achieved
 * cloud-config.service is not starting

Your /var/log/cloud-init.log would likely be helpful.

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