4 files changed, 124 insertions, 0 deletions
diff --git a/roles/installer/ubuntu/usb/defaults/main.yml b/roles/installer/ubuntu/usb/defaults/main.yml
new file mode 100644
index 00000000..5467946d
--- /dev/null
+++ b/roles/installer/ubuntu/usb/defaults/main.yml
@@ -0,0 +1,6 @@
+---
+ubuntu_installer_usb_variant: live-server
+# ubuntu_installer_usb_variant: desktop
+
+### path to the unmounted usb drive (/dev/...)
+# installer_ubuntu_usb_devicepath
diff --git a/roles/installer/ubuntu/usb/tasks/main.yml b/roles/installer/ubuntu/usb/tasks/main.yml
new file mode 100644
index 00000000..c7eb9e41
--- /dev/null
+++ b/roles/installer/ubuntu/usb/tasks/main.yml
@@ -0,0 +1,71 @@
+---
+- name: check if usb drive device exists
+  run_once: true
+  stat:
+    path: "{{ usb_install_path }}"
+  register: usb_install_device
+
+- name: fail if usb drive path is not a device
+  run_once: true
+  assert:
+    that: usb_install_device.stat.exists and usb_install_device.stat.isblk
+    msg: the path to the usb drive does not exist or is not a block device
+
+- name: download installer
+  run_once: true
+  vars:
+    ubuntu_installer_codename: "{{ install_codename }}"
+    ubuntu_installer_arch: "{{ install_cooked.arch | default('amd64') }}"
+    ubuntu_installer_variant: "{{ ubuntu_installer_usb_variant }}"
+  import_role:
+    role: installer/ubuntu/fetch
+
+- name: write ISO image to usb stick
+  pause:
+    prompt: |
+      Please write the image to the USB drive using something like this:
+
+      $ sudo ddrescue {{ (ubuntu_installer_target_dir, ubuntu_installer_filename) | path_join | realpath }} {{ usb_install_path }} -D --force
+
+      This will NOT be done automatically.
+
+- block:
+  - name: create temporary workdir
+    run_once: true
+    tempfile:
+      prefix: "usb-install.{{ inventory_hostname }}."
+      state: directory
+    register: tmpdir
+
+  - name: generate autoinstall files
+    vars:
+      ubuntu_autoinstall_tmpdir: "{{ tmpdir.path }}"
+    import_role:
+      name: installer/ubuntu/autoinstall
+
+  - name: generate isolinux configuration for BIOS boot
+    run_once: true
+    template:
+      src: isolinux.cfg.j2
+      dest: "{{ tmpdir.path }}/isolinux.cfg"
+
+  - name: generate grub configuration for UEFI boot
+    run_once: true
+    template:
+      src: grub.cfg.j2
+      dest: "{{ tmpdir.path }}/grub.cfg"
+
+  - name: update iso9660 filesystem on installer usb drive
+    run_once: true
+    become: yes
+    command: xorriso -dev "stdio:{{ usb_install_path }}" -pathspecs on -boot_image any replay -update isolinux.cfg /isolinux/isolinux.cfg -update grub.cfg /boot/grub/grub.cfg -find / -disk_name autoinstall -type d -exec rm_r -- -add /autoinstall=autoinstall
+    args:
+      chdir: "{{ tmpdir.path }}"
+
+  always:
+  - name: cleanup temporary workdir
+    run_once: true
+    when: tmpdir.path is defined
+    file:
+      path: "{{ tmpdir.path }}"
+      state: absent
diff --git a/roles/installer/ubuntu/usb/templates/grub.cfg.j2 b/roles/installer/ubuntu/usb/templates/grub.cfg.j2
new file mode 100644
index 00000000..1f97113a
--- /dev/null
+++ b/roles/installer/ubuntu/usb/templates/grub.cfg.j2
@@ -0,0 +1,22 @@
+if loadfont $prefix/font.pf2 ; then
+  set gfxmode=auto
+  insmod efi_gop
+  insmod efi_uga
+  insmod gfxterm
+  terminal_output gfxterm
+fi
+
+set menu_color_normal=white/black
+set menu_color_highlight=black/light-gray
+{% if (ansible_play_hosts_all | length) == 1 %}
+set timeout=10
+set default=0
+{% endif %}
+{% for host in ansible_play_hosts_all %}
+
+menuentry "automated installer for {{ host }}" {
+	set gfxpayload=keep
+	linux  /casper/vmlinuz quiet nopersistent autoinstall "ds=nocloud;s=/cdrom/autoinstall/{{ host }}/" {{ (hostvars[host].install_cooked.kernel_cmdline | default([])) | join(' ') }}
+	initrd /casper/initrd
+}
+{% endfor %}
diff --git a/roles/installer/ubuntu/usb/templates/isolinux.cfg.j2 b/roles/installer/ubuntu/usb/templates/isolinux.cfg.j2
new file mode 100644
index 00000000..8360c057
--- /dev/null
+++ b/roles/installer/ubuntu/usb/templates/isolinux.cfg.j2
@@ -0,0 +1,25 @@
+{% if (ansible_play_hosts_all | length) == 1 %}
+DEFAULT {{ inventory_hostname }}
+TIMEOUT 100
+PROMPT 1
+SAY *****************************************
+SAY **
+SAY **  Distro:   {{ install_distro }}
+SAY **  Codename: {{ install_codename }}
+SAY **
+SAY **  will be booting automated installer for {{ inventory_hostname }} in 10s ...
+SAY **
+{% else %}
+DEFAULT menu.c32
+TIMEOUT 0
+PROMPT 0
+MENU TITLE {{ install_distro }} / {{ install_codename }}
+{% endif %}
+{% for host in ansible_play_hosts_all %}
+
+LABEL {{ host }}
+  MENU LABEL automatic installer for {{ host }}
+  KERNEL /casper/vmlinuz
+  INITRD /casper/initrd
+  APPEND quiet nopersistent autoinstall ds=nocloud;s=/cdrom/autoinstall/{{ host }}/ {{ (hostvars[host].install_cooked.kernel_cmdline | default([])) | join(' ') }}
+{% endfor %}