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Re: Help request: ec2-user vs root user for cloud-init
On Tue, May 1, 2012 at 11:49 AM, jvlcek <jvlcek@xxxxxxxxxx> wrote:
> My big question:
> What triggers the modules cloud_config_modules, cloud_final_modules?
Thankfully, the answer to this one is easy. :)
cloud-init.service calls ``cloud-init start'', which runs the modules
cloud-config.service calls ``cloud-config all config'', which runs the
modules in cloud_config_modules.
cloud-final.service calls ``cloud-config all final'', which runs the
modules in cloud_final_modules.
On systems that use upstart's event functionality (read: non-RHEL),
init scripts can trigger on a "cloud-config" event that one of
cloud-init's executables emits during the boot process. Fedora uses
cloud-config.target, which waits for cloud-init*.service, for this
purpose instead. If something prevents cloud-config.target from
becoming active then cloud-config.service and cloud-final.service will
fail to trigger.
Fedora 16 shipped with a nasty systemd bug that broke cloud-init's
service ordering since the EC2 image was not a release blocker.
Moreover, only the barest essentials of cloud-init worked at the time
since it was more or less rushed in at the last moment. If you're
composing images for testing I suggest including updates where