coreos.ign

{
  "ignition": {
    "version": "3.0.0"
  },
  "passwd": {
    "users": [
      {
        "groups": [
          "sudo",
          "docker"
        ],
        "name": "admin",
        "sshAuthorizedKeys": [
          "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDlj1ewzRZ1lcxr3kkk5cULDiudhrZAs420lhkhNENqxSMeTTy+kqBWMtCzLzp8wdp/eRBNYQ8I0lLBq6qcEfevGleFkl0BG5tOgWIdk5irkazNq3L2mXnqviqL0NO+udr/mndaVIOul9r08ozu24uZr67T0ZybzIYAwllW2uTkQYh8HTdKdZtbTkBeBYID2jJyD6BtcGPgKA2QfCfWtC9FmOizvOXXKkaDtPb8+AVnyhwHSegYt1iT0V++4J/GEpVcYsXkGsa6hGROyeThnKqnSA3Ke3TgvJLye5PwXa8i0Wemt2c1BXk6V2vfMCe9tbByO8H2lyu/0Dx2ZbJp661p u0_a715@localhost"
        ]
      }
    ]
  },
  "storage": {
    "files": [
      {
        "contents": {
          "source": "data:,CoreOS%20%20%20%20%20%20%20%20%20%20%0A"
        },
        "mode": 420,
        "path": "/etc/hostname"
      },
      {
        "contents": {
          "source": "data:,%23%20Tell%20systemd%20to%20not%20use%20a%20pager%20when%20printing%20information%0Aexport%20SYSTEMD_PAGER%3Dcat%20%20%20%20%20%20%20%20%20%20%0A"
        },
        "mode": 420,
        "path": "/etc/profile.d/systemd-pager.sh"
      },
      {
        "contents": {
          "source": "data:,%23%20Raise%20console%20message%20logging%20level%20from%20DEBUG%20(7)%20to%20WARNING%20(4)%0A%23%20to%20hide%20audit%20messages%20from%20the%20interactive%20console%0Akernel.printk%3D4%20%20%20%20%20%20%20%20%20%20%0A"
        },
        "mode": 420,
        "path": "/etc/sysctl.d/20-silence-audit.conf"
      },
      {
        "contents": {
          "source": "data:,%23%20Enable%20SSH%20password%20login%0APasswordAuthentication%20yes%20%20%20%20%20%20%20"
        },
        "mode": 420,
        "path": "/etc/ssh/sshd_config.d/20-enable-passwords.conf"
      }
    ]
  },
  "systemd": {
    "units": [
      {
        "enabled": true,
        "name": "docker.service"
      },
      {
        "enabled": true,
        "name": "containerd.service"
      },
      {
        "dropins": [
          {
            "contents": "[Service]\n# Override Execstart in main unit\nExecStart=\n# Add new Execstart with `-` prefix to ignore failure\nExecStart=-/usr/sbin/agetty --autologin admin --noclear %I $TERM\nTTYVTDisallocate=no          \n",
            "name": "autologin-core.conf"
          }
        ],
        "name": "serial-getty@ttyS0.service"
      }
    ]
  }
}