生ディスクイメージを使用した、IBM Z DASDディスクへのSLE Microの展開

    #!/bin/bash
    # combustion: network prepare
    
    
    set -euxo pipefail
    
    ## The OSA subchannels to enable
    ZNET_SUBCHANNELS=0.0.1000,0.0.1001,0.0.1002
    
    ## Network information to configure
    IPADDRESS="10.144.64.155/24" ## Formet is ipaddress/cidr
    GATEWAY="10.144.64.254"
    NAMESERVERS="10.144.53.53;10.144.53.54" ## A semicolon-separated list of name servers
    
    ## Hostname information
    NODE_HOSTNAME="micro6"
    
    ## Add password for root user
    ## Use either 'openssl passwd -6' or 'mkpasswd --method=sha-512' to encrypt the password.
    ROOT_USER_PASSWORD='PASSWORD_HASH'
    SSH_ROOT_PUBLIC_KEY=ssh_key.pub
    
    ## Add a regular user, because root login may be disallowed in some services.
    CREATE_NORMAL_USER=user ## Replace the "user" with a desired username here.
    NORMAL_USER_PASSWORD='PASSWORD_HASH'
    SSH_USER_PUBLIC_KEY=ssh_key.pub
    
    ## Register to SUSE Customer Center and install additional packages
    REG_EMAIL='tux@suse.com' ## Email address for product registration
    SLMICRO_REGCODE='REGISTRATIONCODE' ## A registration code required to install additional packages
    ADDITIONAL_PACKAGES='' ## A space separated list of additional packages to install
    
    
    nm_config() {
      umask 077 # Required for Network Manager configuration
      mkdir -p /etc/NetworkManager/system-connections/
      cat >'/etc/NetworkManager/system-connections/Wired connection 1.nmconnection' <<EOF
      [connection]
      id=static
      type=ethernet
      autoconnect=true
    
      [ipv4]
      method=manual
      address1=$IPADDRESS
      gateway=$GATEWAY
      dns=$NAMESERVERS
    EOF
    }
    
    if [ "${1-}" = "--prepare" ]; then
      # Configure Network Manager in the initrd
      nm_config
      # Enable OSA network devices
      chzdev qeth $ZNET_SUBCHANNELS -ep
      chzdev qeth $ZNET_SUBCHANNELS -e    
      exit 0
    fi
    
    
    
    ## Post output on stdout
    exec > >(exec tee -a /dev/ttyS0) 2>&1
    
    ## Set hostname
    echo $NODE_HOSTNAME > /etc/hostname
    
    ## Set root password
    echo root:$ROOT_USER_PASSWORD | chpasswd -e
    ## Add ssh public key as authorized key for the root user
    mkdir -pm700 /root/.ssh/
    cat $SSH_ROOT_PUBLIC_KEY >> /root/.ssh/authorized_keys
    
    ## Mount /var and /home so user can be created smoothly
    if [ "$CREATE_NORMAL_USER" ]
    then
      mount /var && mount /home
    fi
    ## User creation
    if [ "$CREATE_NORMAL_USER" ]
    then
      echo "User creation is requested, creating user."
      useradd -m $CREATE_NORMAL_USER -s /bin/bash -g users
      echo $CREATE_NORMAL_USER:$NORMAL_USER_PASSWORD | chpasswd -e
      echo $CREATE_NORMAL_USER "ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers.d/adminusers
      mkdir -pm700 /home/$CREATE_NORMAL_USER/.ssh/
      chown -R $CREATE_NORMAL_USER:users /home/$CREATE_NORMAL_USER/.ssh/
      cat $SSH_USER_PUBLIC_KEY >> /home/$CREATE_NORMAL_USER/.ssh/authorized_keys
      echo "Requested user has been created, requested password has been set."
    else
      echo "No user will be created"
    fi
    
    # Configure NM in the system
    nm_config
    # Enable OSA network device
    chzdev qeth $ZNET_SUBCHANNELS -ep
    chzdev qeth $ZNET_SUBCHANNELS -e
    
    ## Enable services
    echo "Enabling services."
    systemctl enable cockpit.socket
    systemctl enable sshd
    
    ## Unmount var and home
    if [ "$CREATE_NORMAL_USER" ]
    then
      umount /var && umount /home
    fi  
    
    
    echo "Configured with Combustion at $(date)" > /etc/issue.d/combustion

<root directory>
└── ignition
    └── config.ign