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Dockerfile

@@ -13,16 +13,16 @@ RUN apt update && \
     qemu-user \
     qemu-utils \
     sudo \
+    man-db \
     virtinst
 
 RUN useradd -m user
-
-RUN qemu-img create -f qcow2 /image.qcow2 100G
-
+USER user
+WORKDIR /home/user
+RUN qemu-img create -f qcow2 image.qcow2 100G
 ADD . /home/user/
-
-RUN chown user:user /*.qcow2 && chown user:user /home/user/* && chmod a+rwX /home/user/*
-
-RUN sudo --login -u user /home/user/install.sh
-
+USER root
+RUN chown user:user /home/user/* && chmod a+rwX /home/user/*
+USER user
+#RUN /bin/bash /home/user/install.sh
 ENTRYPOINT /bin/bash

Makefile

@@ -2,3 +2,6 @@ default: build
 
 build:
 	docker build -t sneak/docker-linux-vm .
+
+run:
+	docker run -ti sneak/docker-linux-vm

install.sh

@@ -1,21 +1,36 @@
 #!/bin/bash
 
+function wait_for_finish() {
+    echo "Waiting for install to finish..."
+    while sleep 10 ; do
+        STATUS="$(virsh dominfo linux | grep State | awk -F' ' '{print $2}')"
+        if [[ "x$STATUS" == "xrunning" ]]; then
+            date -u
+            echo "Still waiting for install to finish..."
+        fi
+        if [[ "x$STATUS" != "xrunning" ]]; then
+            echo "Install done."
+            return
+        fi
+    done
+}
+
 function install_os() {
-    osinfo-query os
     virsh list
     virt-install --virt-type qemu --name linux \
     --ram 4096 \
-    --disk path=/image.qcow2 \
-    --vcpus 4 \
-    --os-type linux \
+    --disk path=image.qcow2 \
     --os-variant ubuntu18.04 \
     --initrd-inject=preseed.cfg \
     --initrd-inject=postinst.sh \
     --graphics none \
     --location 'http://us.archive.ubuntu.com/ubuntu/dists/bionic/main/installer-amd64/' \
     --extra-args 'console=ttyS0,115200n8 serial'
-    virsh list
-    virsh console linux
+    #virsh list
+    #virsh console linux
 }
 
-install_os
+begin_install_os
+wait_for_finish
+
+exit 0

preseed.cfg

@@ -1,66 +1,181 @@
-# Preconfiguration file for jessie.
-# For more details see https://www.debian.org/releases/jessie/example-preseed.txt
-d-i debian-installer/locale string en_US
+### Preseed for Ubuntu 18.04
+# Derived from: https://help.ubuntu.com/lts/installation-guide/example-preseed.txt
+
+### Compatibility
+# Tested with the netboot image:
+# http://archive.ubuntu.com/ubuntu/dists/bionic/main/installer-amd64/current/images/netboot/mini.iso
+# Might work with the regular image (not tested):
+# http://cdimage.ubuntu.com/releases/18.04/release/ubuntu-18.04-server-amd64.iso
+
+### Authentication
+# We recommend to use public key authentication and therefore disabled the root
+# password. The build-iso.sh script will do all the hard work for you.
+#
+# In case you still want to use password authentication, you need to set the
+# passwd/root-password-crypted variable. See below for further instructions.
+
+### Usage
+# We recommend to use the build-iso.sh script to build an image with embedded
+# preseed and other required files. In that case the preseed file gets loaded
+# automatically and all additional files are available to the installer.
+#
+# In case you want to use a vanilla ISO image, please use the following boot
+# instructions to load the preseed file (press ESC and enter in boot prompt):
+#
+# install auto=true priority=critical url=https://raw.githubusercontent.com/core-process/linux-unattended-installation/master/ubuntu/18.04/custom/preseed.cfg
+#
+# Note: you will need to adjust the "preseed/late_command" variable to match
+#       your environment in case you do not use the build-iso.sh script.
+
+
+### Unattended Installation
+d-i auto-install/enable boolean true
+d-i debconf/priority select critical
+
+### Localization
+d-i debian-installer/locale string en_US.UTF-8
+d-i localechooser/supported-locales multiselect en_US.UTF-8, de_DE.UTF-8
+d-i console-setup/ask_detect boolean false
 d-i keyboard-configuration/xkb-keymap select us
 
-# Choose an network interface that has link if possible.
+### Network configuration
 d-i netcfg/choose_interface select auto
+d-i netcfg/hostname string device
+d-i netcfg/get_hostname string device
+d-i netcfg/get_domain string unnamed
+d-i hw-detect/load_firmware boolean true
 
-# Disable that annoying WEP key dialog.
-d-i netcfg/wireless_wep string
-
-# Mirror settings.
+### Mirror settings
 d-i mirror/country string manual
-d-i mirror/http/hostname string archive.ubuntu.com
+d-i mirror/http/hostname string us.archive.ubuntu.com
 d-i mirror/http/directory string /ubuntu
 d-i mirror/http/proxy string
 
-# Root account setup. You can set password in plain-text or pre-encrypted.
-d-i passwd/root-login boolean false
-#d-i passwd/root-password password 98e1c23d2a5a2
-#d-i passwd/root-password-again password 98e1c23d2a5a2
-#d-i passwd/root-password-crypted password $6$1LCVFshS/kbYVg$M1QS1ZJ3.E7NkAD8sqkqhqExA2HWQ5/iDE.l23Xbr89Z7hTg/jUuBMyrYzANLmRybYcH8Smcy.yGDKMAX3okd0
-
-# User account setup.
-#d-i passwd/make-user boolean false
-d-i passwd/user-fullname string user
-d-i passwd/username string user
-d-i passwd/user-password password password
-d-i passwd/user-password-again password password
-#d-i passwd/user-password-crypted password $6$dU9we2Mm$Btq1Tk1WkFx3/8YsXWbZr13m56uv0PabJKxk5teKAImLLQhtniOURXuOVLmbiBl0O3iS6xQBctNIc9Dn5b3vR.
-# Password login is disabled.
-d-i passwd/user-password-crypted password !
-
-# Controls whether or not the hardware clock is set to UTC.
+### Account setup
+d-i passwd/root-login boolean true
+d-i passwd/root-password-crypted password !!
+d-i passwd/make-user boolean false
+
+# The root password is disabled by default. In case you want to use a root
+# password, please generate a password with the following command
+#   printf "please-change-password" | mkpasswd -s -m sha-512
+# and update the passwd/root-password-crypted variable accordingly. Furthermore
+# you need to remove the call to "usermod" below.
+
+### Clock and time zone setup
 d-i clock-setup/utc boolean true
-# See the contents of /usr/share/zoneinfo/ for valid values.
-d-i time/zone string UTC
-# Controls whether to use NTP to set the clock during the install.
+d-i time/zone string Etc/UTC
 d-i clock-setup/ntp boolean true
+d-i clock-setup/ntp-server string ntp.ubuntu.com
+
+### Do NOT install on the USB stick(!)
+#
+# The Debian installer will install on the first disk it finds which can
+# sometimes be the USB stick itself. Work around this by rolling our own auto
+# detect logic which disallows installing on USB devices.
+d-i partman/early_command string \
+  USBDEV_LIST="$(mktemp)"; \
+  list-devices usb-partition | sed "s/\(.*\)./\1/" > "$USBDEV_LIST"; \
+  BOOTDEV="$(list-devices disk | grep -vf "$USBDEV_LIST" | head -n 1)"; \
+  debconf-set partman-auto/disk "$BOOTDEV"; \
+  debconf-set grub-installer/bootdev "$BOOTDEV"; \
+  while /bin/true; do sleep 0.01; rm -f /target/etc/grub.d/30_os-prober; done &
 
-# Simple non-LVM, all files in one partition.
-# For more examples see https://www.debian.org/releases/jessie/example-preseed.txt
-d-i partman-auto/method string regular
-d-i partman-auto/choose_recipe select atomic
+### Partitioning
+d-i preseed/early_command string umount /media || true
+d-i partman-auto/method string lvm
+d-i partman-auto-lvm/guided_size string max
+d-i partman-lvm/device_remove_lvm boolean true
+d-i partman-lvm/confirm boolean true
+d-i partman-lvm/confirm_nooverwrite boolean true
+d-i partman-auto-lvm/new_vg_name string main
+d-i partman-md/device_remove_md boolean true
+d-i partman-md/confirm boolean true
 d-i partman-partitioning/confirm_write_new_label boolean true
 d-i partman/choose_partition select finish
 d-i partman/confirm boolean true
 d-i partman/confirm_nooverwrite boolean true
+d-i partman-basicmethods/method_only boolean false
 
-# Do not install recommended packages by default.
-d-i base-installer/install-recommends boolean false
-tasksel tasksel/first multiselect
-# Individual additional packages to install. acpid and acpi-support-base are required to make virsh shutdown to work.
-# ACPI packages are needed for `virsh shutdown <domain>` to work.
-d-i pkgsel/include string openssh-server ca-certificates acpid acpi-support-base
-popularity-contest popularity-contest/participate boolean false
+### GPT
+d-i partman-basicfilesystems/choose_label string gpt
+d-i partman-basicfilesystems/default_label string gpt
+d-i partman-partitioning/choose_label string gpt
+d-i partman-partitioning/default_label string gpt
+d-i partman/choose_label string gpt
+d-i partman/default_label string gpt
 
-# Boot loader installation.
+### EFI
+d-i partman-efi/non_efi_system boolean true
+
+### Grub
 d-i grub-installer/only_debian boolean true
-d-i grub-installer/bootdev string /dev/vda
+d-i grub-installer/with_other_os boolean true
+
+# Use entire disk
+d-i partman-auto/expert_recipe string         \
+  boot-root ::                                \
+    1 1 1 free                                \
+      $bios_boot{ }                           \
+      method{ biosgrub }                      \
+    .                                         \
+    256 256 256 fat32                         \
+      $primary{ }                             \
+      $iflabel{ gpt }                         \
+      $reusemethod{ }                         \
+      method{ efi } format{ }                 \
+      mountpoint{ /boot/efi }                 \
+    .                                         \
+    512 512 512 ext4                          \
+      $primary{ }                             \
+      $bootable{ }                            \
+      method{ format } format{ }              \
+      use_filesystem{ } filesystem{ ext4 }    \
+      mountpoint{ /boot }                     \
+    .                                         \
+    1024 102400000 1000000000 ext4            \
+      $lvmok{ }                               \
+      method{ format } format{ }              \
+      use_filesystem{ } filesystem{ ext4 }    \
+      mountpoint{ / }                         \
+      lv_name{ root }                         \
+    .                                         \
+    200% 200% 200% linux-swap                 \
+      $lvmok{ }                               \
+      method{ swap } format{ }                \
+      lv_name{ swap }                         \
+    .
+
+### Base system installation
+d-i base-installer/install-recommends boolean true
+d-i base-installer/kernel/image string linux-generic
+
+### 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/use_mirror boolean false
+d-i apt-setup/services-select multiselect security, updates
+d-i apt-setup/security_host string security.ubuntu.com
+d-i apt-setup/security_path string /ubuntu
+
+### Package selection
+d-i tasksel/first multiselect none
+d-i pkgsel/include string openssh-server python
+d-i pkgsel/upgrade select full-upgrade
+d-i pkgsel/update-policy select unattended-upgrades
+
+### Finishing up the installation
+d-i preseed/late_command string \
+ in-target sh -c 'lvremove -f --noudevsync main/placeholder || true'; \
+ in-target sh -c 'rm -f /etc/ssh/ssh_host_*_key* && mkdir -p /usr/lib/systemd/system && cp /custom/ssh-host-keygen.service /usr/lib/systemd/system/ssh-host-keygen.service && systemctl enable ssh-host-keygen.service'; \
+ in-target sh -c 'echo "IPv4: \\\4" >> /etc/issue && echo "IPv6: \\\6" >> /etc/issue && echo "" >> /etc/issue'; \
+ in-target sh -c 'eject || true'; \
+ cp postinst.sh /target/tmp/ && chmod 755 /target/tmp/postinst.sh && in-target /tmp/postinst.sh ;
 
-# Run postinst.sh in /target just before the install finishes.
-d-i preseed/late_command string cp postinst.sh postinst.tar.gz /target/tmp/ && chmod 755 /target/tmp/postinst.sh && in-target /tmp/postinst.sh
+d-i debian-installer/splash boolean false
+d-i cdrom-detect/eject boolean true
 
-# Avoid that last message about the install being complete.
+### Shutdown machine
 d-i finish-install/reboot_in_progress note
+d-i debian-installer/exit/poweroff boolean true