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-... 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@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@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