parameters:
  linux:
    system:
      kernel:
        sysctl:
          net.ipv4.tcp_keepalive_intvl: 1
          net.ipv4.tcp_keepalive_time: 5
          net.ipv4.tcp_keepalive_probes: 5
          net.nf_conntrack_max: 256000
          fs.file-max: 124165