18.8. Ignition の設定オプション

  storage:
    files:
      - path: /etc/resolv.conf
        mode: 0644
        contents:
          inline: |
            ...
      - path: /etc/chrony.conf      # <-- same level as first entry
        mode: 0644

passwd:
  users:
    - name: admin
      uid: 1001
      groups:
        - wheel
        - sudo
      ssh_authorized_keys:
        - ssh-rsa AAAAB3... admin@example.com
      password_hash: $6$rounds=4096$salt$hash...
    - name: appuser
      uid: 1002
      system: true
      no_create_home: true

systemd:
  units:
    - name: myapp.service
      enabled: true
      contents: |
        [Unit]
        Description=My Application
        After=network-online.target

        [Service]
        Type=simple
        ExecStart=/usr/bin/myapp
        Restart=always

        [Install]
        WantedBy=multi-user.target
    - name: debug-shell.service
      mask: true

kernel_arguments:
  should_exist:
    - systemd.unified_cgroup_hierarchy=1
    - mitigations=auto
  should_not_exist:
    - quiet

variant: r4e
version: 1.5.0
storage:
  files:
    - path: /etc/resolv.conf
      mode: 0644
      contents:
        inline: |
          nameserver 10.1.0.1
          nameserver 10.1.0.2
          search dc1.example.com example.com
      - path: /etc/chrony.conf
        mode: 0644
        contents:
          inline: |
            server ntp.dc1.example.com iburst prefer
            server ntp.example.com iburst
            driftfile /var/lib/chrony/drift
      - path: /etc/datacenter
        mode: 0644
        contents:
          inline: dc1

$ ignition-validate config.ign

$ butane --strict config.bu > config.ign