6.11. Deploying a container image by using a single command

Procedure

1. After the instance starts, connect to it by using SSH using the key you selected when creating the instance:

   $ ssh -i <ssh-key-file> <cloud-user@ip>

2. Make sure that the system-reinstall-bootc subpackage is installed:

   # rpm -q system-reinstall-bootc

   If not, install the system-reinstall-bootc subpackage:

   # dnf -y install system-reinstall-bootc

3. Convert the system to use a bootc image:

   # system-reinstall-bootc <image>

   • You can use the container image from the Red Hat Ecosystem Catalog or the customized bootc image built from a Containerfile.
4. Select users to import to the bootc image by pressing the "a" key.
5. Confirm your selection twice and wait until the image is downloaded.

6. Reboot the system:

   # reboot

7. Remove the stored SSH host key for the given <ip> from your /.ssh/known_hosts file:

   # ssh-keygen -R <ip>

   The bootc system is now using a new public SSH host key. When attempting to connect to the same IP address with a different key than what is stored locally, SSH will raise a warning or refuse the connection due to a host key mismatch. Since this change is expected, the existing host key entry can be safely removed from the ~/.ssh/known_hosts file using the following command.

8. Connect to the bootc system:

   # ssh -i <ssh-key-file> root@<ip>