Renamed tar-installer to image-installer.
This is a more appropriate name:
- It disassociates the image type from the "tar" image type. The two
should not be perceived to be connected.
- It's more descriptive. The format of the payload (tar) isn't relevant
to the purpose of the image type.
Several changes required to get the installer test working in CI.
Blueprint:
- Add packages for SSH and networking
- Use generated SSH key and username variable for user setup
Kickstart:
- The ISO contains a kickstart file with the `liveimg` command. Instead
of trying to inject a kickstart during virt-install, we override the
existing file on the ISO. The `modksiso` function reads a kickstart
file from an existing ISO, adds commands to make the installation
fully automatic (partitioning, text --non-interactive) and creates a
new ISO with the modified kickstart file using mkksiso.
- Simple networking added to kickstart file.
- Kernel command line args for installer added via the mkksiso command
since the `--cdrom` installation source doesn't support injecting
command line arguments.
virt-install:
- Using `--cdrom` instead of `--location`: latter was failing to
install.
- No longer injects a kickstart file (since we handle it separately) and
doesn't add extra Kernel args.
