Ubuntu preseed

preseed.cfg

#### Contents of the preconfiguration file (for xenial)
### Localization
d-i debian-installer/locale string en_US
d-i console-setup/ask_detect boolean false
d-i keyboard-configuration/layoutcode string uk
d-i keyboard-configuration/layout select English (UK)
d-i keyboard-configuration/variant select English (UK)
d-i keyboard-configuration/xkb-keymap select uk
d-i keyboard-configuration/modelcode string pc105
d-i netcfg/choose_interface select auto
d-i netcfg/get_hostname string unassigned-hostname
d-i netcfg/get_domain string unassigned-domain

### Mirror settings
d-i mirror/country string manual
d-i mirror/http/hostname string gb.archive.ubuntu.com
d-i mirror/http/directory string /ubuntu
d-i mirror/http/proxy string

### Account setup
d-i passwd/user-fullname string
d-i passwd/username string ansible
d-i passwd/user-password password ansible
d-i passwd/user-password-again password ansible
d-i user-setup/allow-password-weak boolean true
d-i user-setup/encrypt-home boolean false

### Clock and time zone setup
d-i clock-setup/utc boolean true
d-i time/zone string UTC
d-i clock-setup/ntp boolean true

### Partitioning
# NAME        MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
# nvme0n1     259:0    0 465.8G  0 disk
# |-nvme0n1p1 259:1    0   487M  0 part /boot
# |-nvme0n1p2 259:2    0  90.6G  0 part
# | |-os-root 252:0    0  85.9G  0 lvm  /
# | `-os-swap 252:1    0   4.8G  0 lvm  [SWAP]
# |-nvme0n1p3 259:3    0     1K  0 part
# `-nvme0n1p5 259:4    0 374.7G  0 part

d-i partman-auto/init_automatically_partition select Manual
d-i partman-auto/disk string /dev/nvme0n1
d-i partman-auto/method string lvm

d-i partman-lvm/device_remove_lvm boolean true
d-i partman-lvm/device_remove_lvm_span boolean true
d-i partman-md/device_remove_md boolean true

d-i partman-lvm/confirm boolean true
d-i partman-lvm/confirm_nooverwrite boolean true
d-i partman/confirm_nooverwrite boolean true

d-i partman-auto-lvm/guided_size string max
d-i partman-auto-lvm/new_vg_name string os

d-i partman-auto/expert_recipe string         \
  boot-root ::                                \
    512 512 512 ext4                          \
      $primary{ }                             \
      $bootable{ }                            \
      method{ format } format{ }              \
      use_filesystem{ } filesystem{ ext4 }    \
      mountpoint{ /boot }                     \
    .                                         \
    97280 97280 97280 ext4                    \
      $primary{ }                             \
      $defaultignore{ }                       \
      device{ /dev/nvme0n1 }                  \
      method{ lvm }                           \
      vg_name{ os }                           \
    .                                         \
    5120 5120 5120 linux-swap                 \
      $lvmok{ }                               \
      in_vg{ os }                             \
      lv_name{ swap }                         \
      method{ swap } format{ }                \
    .                                         \
    91136 91136 91136 ext4                    \
      $lvmok{ }                               \
      in_vg{ os }                             \
      lv_name{ root }                         \
      method{ format } format{ }              \
      use_filesystem{ } filesystem{ ext4 }    \
      mountpoint{ / }                         \
    .                                         \
    0 1000000000 -1 free                      \
    .

# This makes partman automatically partition without confirmation.
d-i partman/confirm_write_new_label boolean true
d-i partman/choose_partition select Finish partitioning and write changes to disk
d-i partman/confirm boolean true

### Apt setup
d-i apt-setup/restricted boolean true
d-i apt-setup/universe boolean true
d-i apt-setup/backports boolean true
d-i apt-setup/services-select multiselect security
d-i apt-setup/security_host string security.ubuntu.com
d-i apt-setup/security_path string /ubuntu

### Package selection
tasksel tasksel/first multiselect openssh-server
d-i pkgsel/update-policy select none
d-i pkgsel/upgrade select none

### Boot loader installation
d-i grub-installer/only_debian boolean true
d-i grub-installer/with_other_os boolean true

### Finishing up the installation
d-i finish-install/reboot_in_progress note

## No password for sudoers
d-i preseed/late_command string in-target sed -i 's/^%sudo.*$/%sudo ALL=(ALL:ALL) NOPASSWD: ALL/g' /etc/sudoers