Open Stack

On Wed, 2020-09-16 at 06:39 -0700, Michael STFC wrote:
>  Our openstack env automatically injects SSH keys) and already does that
> with all other images I have downloaded to deployed e.g fedora cloud images
> and ceros cloud image.
> 
> However core os is different and I have tried to edit grub added
> coreos.autologin=tty1
> but nothing.
> 
> Also tried to do this via cloud-config
> 
> #cloud-config
> 
> coreos:
>     units:
>       - name: etcd.service
>         command: start
> 
> users:
>   - name: core
>     passwd: coreos
>     ssh_authorized_keys:
>   - "ssh-rsa xxxxx"
> 
> 
> And not luck - when vm boots it hangs.
Coreos does not use cloud config by default it uses ignition.
i belive you can still configure it with cloud init but you have to do it
slightly differnet then normal.
https://coreos.com/os/docs/latest/booting-on-openstack.html#container-linux-configs
has the detail you need. basically you have to either pass an ignition script as the user
data or Container Linux Config format.

cloud init wont work.

e.g. 
nova boot \
--user-data ./config.ign \
--image cdf3874c-c27f-4816-bc8c-046b240e0edd \
--key-name coreos \
--flavor m1.medium \
--min-count 3 \
--security-groups default,coreos

were ./config.ign  is an ignition file.

> 
> On 16 Sep 2020 at 13:31:10, Florian Rommel <florian at datalounges.com> wrote:
> 
> > Hi Michael.
> > So, if I remember coreOS correctly, its the same as all of the cloud based
> > images. It uses SSH keys to authenticate. If you have a an SSH public key
> > in there where you do no longer have the private key for, you can “easily”
> > reset it by 2 ways.
> > 1. If its volume based instance, delete the instance but not the volume.
> > Create the instance again by adding your own ssh key into the boot process.
> > This will ADD the ssh key, but not overwrite the existing one in the
> > authorized_key file
> > 2. If it is normal ephermal disk based instance, make a snapshot and
> > create a new instance from the snapshot, adding your own ssh key into it.
> > 
> > Either or, if they are ssh key authenticated (which they should be), there
> > isn’t really an EASY way unless you want to have the volume directly.
> > 
> > Best regards,
> > //Florian
> > 
> > On 16. Sep 2020, at 13.53, Michael STFC <mtint.stfc at gmail.com> wrote:
> > 
> > 
> > Hi
> > 
> > 
> > New to openstack and wanting to know how to get  boot core os and reset
> > user core password.
> > 
> > 
> > Please advise.
> > 
> > 
> > Michael
> > 
> > 
> > 
> >