Setting alternatives

Due to an ongoing issue in how alternatives configurations are stored on the system, Fedora CoreOS systems can not use the usual alternatives commands to configure them.

Instead, until this issue is resolved, you can set the symlinks directly in /etc/alternatives. For example, to use the nftables based variants of iptables commands:

variant: fcos
version: 1.3.0
storage:
  links:
    - path: /etc/alternatives/iptables
      target: /usr/sbin/iptables-nft
      overwrite: true
      hard: false
    - path: /etc/alternatives/iptables-restore
      target: /usr/sbin/iptables-nft-restore
      overwrite: true
      hard: false
    - path: /etc/alternatives/iptables-save
      target: /usr/sbin/iptables-nft-save
      overwrite: true
      hard: false
    - path: /etc/alternatives/ip6tables
      target: /usr/sbin/ip6tables-nft
      overwrite: true
      hard: false
    - path: /etc/alternatives/ip6tables-restore
      target: /usr/sbin/ip6tables-nft-restore
      overwrite: true
      hard: false
    - path: /etc/alternatives/ip6tables-save
      target: /usr/sbin/ip6tables-nft-save
      overwrite: true
      hard: false