[Release-1.27] - Make alternative container runtimes easier to use

[vitorsavian]

Backport fix for Make alternative container runtimes easier to use

• Make alternative container runtimes easier to use #5108

[fmoral2]

Validated on Version:

-$ rke2 version v1.27.8+dev.8d37d68c (8d37d68ce91d0775b45f1de8492bf23b55f70c39)

Environment Details

Infrastructure
Cloud EC2 instance

Node(s) CPU architecture, OS, and Version:
NAME="Oracle Linux Server"
VERSION="8.9"
ID="ol"
ID_LIKE="fedora"

Cluster Configuration:
1 node servers

Steps to validate the fix

1. Create files for represent adding pre config for another containerd runtimes
2. Install rke2
3. Check config.toml file
4. Validate that each file is added to config.toml file with his content section

Validation Results:

 
 sudo touch /usr/bin/containerd-shim-lunatic-v1 
 sudo touch /usr/sbin/containerd-shim-spin-v1
 sudo touch /usr/bin/nvidia-container-runtime

# rke2 -v
rke2 version v1.27.8+dev.8d37d68c (8d37d68ce91d0775b45f1de8492bf23b55f70c39)
go version go1.20.11 X:boringcrypto


# cat config.toml | grep -E 'lunatic|spin|nvidia'
[plugins."io.containerd.grpc.v1.cri".containerd.runtimes."lunatic"]
  runtime_type = "io.containerd.lunatic.v2"
[plugins."io.containerd.grpc.v1.cri".containerd.runtimes."lunatic".options]
  BinaryName = "/usr/bin/containerd-shim-lunatic-v1"
[plugins."io.containerd.grpc.v1.cri".containerd.runtimes."nvidia"]
[plugins."io.containerd.grpc.v1.cri".containerd.runtimes."nvidia".options]
  BinaryName = "/usr/bin/nvidia-container-runtime"
[plugins."io.containerd.grpc.v1.cri".containerd.runtimes."nvidia-experimental"]
[plugins."io.containerd.grpc.v1.cri".containerd.runtimes."nvidia-experimental".options]
  BinaryName = "/usr/bin/nvidia-container-runtime-experimental"
[plugins."io.containerd.grpc.v1.cri".containerd.runtimes."spin"]
  runtime_type = "io.containerd.spin.v2"
[plugins."io.containerd.grpc.v1.cri".containerd.runtimes."spin".options]
  BinaryName = "/usr/sbin/containerd-shim-spin-v1"