lab:nuc_1
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| - | ====== NUC 1 ====== | ||
| - | This is the first NUC in the [[Stack of NUCs]]. This NUC will be a user-friendly desktop installation used to create the rest of the environment. | ||
| - | References: | ||
| - | * [[https:// | ||
| - | |||
| - | Hardware: | ||
| - | * 7i3 | ||
| - | * 32GB RAM | ||
| - | * 32GB storage | ||
| - | * Wireless | ||
| - | |||
| - | Software: | ||
| - | * Ubuntu 22.04 LTS desktop | ||
| - | |||
| - | Purpose: | ||
| - | * Linux machine to facilitate: | ||
| - | * creating the modified ISO for the boot USB stick | ||
| - | * create the modified ISO for the USB | ||
| - | * create SSH management keys | ||
| - | |||
| - | Steps: | ||
| - | - Install Ubuntu Desktop - [[https:// | ||
| - | - Log in to the NUC | ||
| - | - Do the usual software updates and install software packages | ||
| - | * '' | ||
| - | * '' | ||
| - | - Generate key for ssh: '' | ||
| - | * accept default settings and don't enter a passphrase | ||
| - | - Download the latest __live-server__ ISO from [[https:// | ||
| - | * move this file to your home directory | ||
| - | - Open the terminal (you should be in your home directory) | ||
| - | - Install livefs-editor, | ||
| - | * <file bash> | ||
| - | git clone https:// | ||
| - | cd livefs-editor'' | ||
| - | python3 -m pip install | ||
| - | # not sure if you will need to use '' | ||
| - | </ | ||
| - | * Return to your home directory (i.e., '' | ||
| - | - Create modified live-server ISO | ||
| - | - Copy the grub.cfg file from the ISO file | ||
| - | * Set the ORIG_ISO filename to the actual file you downloaded. In this example I will use '' | ||
| - | * < | ||
| - | export ORIG_ISO=" | ||
| - | mkdir mnt | ||
| - | mount -o loop $(ORIG_ISO) mnt | ||
| - | cp --no-preserve=all mnt/ | ||
| - | umount nnt | ||
| - | sed -i ' | ||
| - | sed -i ' | ||
| - | export MODDED_ISO=" | ||
| - | livefs-edit ../ | ||
| - | </ | ||
| - | - Create bootable USB from the modified ISO | ||
| - | * Use [[https:// | ||
| - | - Create a USB stick named CIDATA for a cloud-init datasource | ||
| - | - Unplug the bootable USB stick you just created | ||
| - | - Plug in the USB that will be erased and used as the cloud-init datasource | ||
| - | - Identify the USB stick device name | ||
| - | * '' | ||
| - | * be SURE you pick the right one! | ||
| - | - Format the USB disk (assuming it's sdb in this example) | ||
| - | - Unmount it: '' | ||
| - | - Format it: '' | ||
| - | - Confirm: '' | ||
| - | - Create meta-data file on CIDATA (assuming it's sdb in this example) | ||
| - | * < | ||
| - | mkdir /tmp/cidata | ||
| - | sudo mount /dev/sdb /tmp/cidata | ||
| - | cd /tmp/cidata | ||
| - | touch meta-data | ||
| - | touch user-data | ||
| - | </ | ||
| - | - Modify the user-data file on CIDATA | ||
| - | * You can create the use using a text editor (notepadqq was installed earlier) or use the command line | ||
| - | * Replace the key(s) in the example with the output from your computer for: | ||
| - | * '' | ||
| - | * Replace the wifi SSID name and PASSWORD with your wifi SSID and passphrase | ||
| - | * <file yaml> | ||
| - | # | ||
| - | autoinstall: | ||
| - | version: 1 | ||
| - | ssh: | ||
| - | install-server: | ||
| - | # option " | ||
| - | allow-pw: false | ||
| - | |||
| - | # " | ||
| - | late-commands: | ||
| - | # randomly generate the hostname & show the IP at boot | ||
| - | - echo nuc-host-$(openssl rand -hex 3) > / | ||
| - | # dump the IP out at login screen | ||
| - | - echo " | ||
| - | # storage was a pain in the ass and merged multiple things, I just want a 100% use of the fs. (alt option: https:// | ||
| - | - curtin in-target --target=/ | ||
| - | - curtin in-target --target=/ | ||
| - | # shut-down the host to avoid an infinite installer loop | ||
| - | - shutdown -h now | ||
| - | |||
| - | user-data: | ||
| - | disable_root: | ||
| - | timezone: America/ | ||
| - | package_upgrade: | ||
| - | packages: | ||
| - | - network-manager | ||
| - | runcmd: | ||
| - | - nmcli d wifi connect SSID password PASSWORD | ||
| - | users: | ||
| - | - name: tux | ||
| - | primary_group: | ||
| - | groups: sudo | ||
| - | lock_passwd: | ||
| - | # don't need PW since using SSH, leaving this in though... | ||
| - | # password is " | ||
| - | # passwd: " | ||
| - | shell: /bin/bash | ||
| - | # use cat ~/ | ||
| - | ssh_authorized_keys: | ||
| - | - " | ||
| - | sudo: ALL=(ALL) NOPASSWD: | ||
| - | - name: ansible | ||
| - | gecos: Ansible User | ||
| - | primary_group: | ||
| - | groups: sudo | ||
| - | sudo: ALL=(ALL) NOPASSWD: | ||
| - | shell: /bin/bash | ||
| - | lock_passwd: | ||
| - | ssh_authorized_keys: | ||
| - | - " | ||
| - | # shutdown after first host initial provisioning | ||
| - | power_state: | ||
| - | mode: poweroff | ||
| - | </ | ||
| - | - Unmount the USB stick | ||
| - | - '' | ||
| - | - Remove the USB stick | ||
| - | - Test boot setup on a different NUC | ||
| - | - Insert both USBs into the (powered off) test NUC | ||
| - | - Connect the test NUC to your wired Lab network (which has Internet access) | ||
| - | - Power on | ||
| - | - Press F10 when prompted and select the USB bootable USB stick ("USB UEFI") | ||
| - | - If no physical internet connection, it will delay the setup greatly | ||
| - | - If user-data is configured to update packages, be aware this requires an internet connection, and takes additional time | ||
| - | - When the NUC powers down the first time, remove the USB sticks, then power back on | ||
| - | - When the NUC powers down the second time, it is ready to deploy. Power back on when you are ready. | ||
| - | - Test ssh from NUC 1 to the test NUC | ||
| - | * identify the IP address on the NUC | ||
| - | * '' | ||
| - | - Set up SSH management keys | ||
| - | * once all your NUCs are up, you can use this script to add all of them to your ssh known_hosts file | ||
| - | * < | ||
| - | IPs=$(sudo arp-scan --localnet --numeric --quiet --ignoredups | grep -E ' | ||
| - | for i in $(IPs" | ||
| - | </ | ||
lab/nuc_1.1681087880.txt.gz · Last modified: 2023/04/10 00:51 by user