The role sets kernel parameters in Grub defaults and updates Grub configuration if neccessary.
All escaped line breaks are straightened to single line before applying values from the list of kernel parameters.
If a kernel parameter is passed with different value than the one in config, the old value is not removed but new one is appended to the end of kernel command line and will override the old one upon boot.
Required kernel parameters must be defined in grub_kernel_params variable.
Example:
grub_kernel_params:
- zswap.enabled=1
- quiet
- splash