Grubcmdline: Support Ubuntu/ cloud-init combination #29
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Ubuntu images with cloudinit use a different base/source for its grub configuration than CentOS - /etc/default/grub.d/50-cloudimg-settings.cfg not /etc/default/grub. We look for the cloud-init config file and use that, otherwise default to /etc/default/grub file.
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In our testing it seems that Ubuntu-based cloud-init images use alternate grub config file.
Ubuntu images with cloudinit use a different base/source for its grub configuration than Redhat derivatives -
/etc/default/grub.d/50-cloudimg-settings.cfgnot/etc/default/grub.We look for the cloud-init config file and use that in the future commands, otherwise default to /etc/default/grub file.