Merge "add: packer template for debian-9 installation"

[infra.git] / packer / debian-9 / scripts / 01-configure-cloudinit.sh

diff --git a/packer/debian-9/scripts/01-configure-cloudinit.sh b/packer/debian-9/scripts/01-configure-cloudinit.sh
new file mode 100755 (executable)
index 0000000..c014d6e
--- /dev/null
+++ b/packer/debian-9/scripts/01-configure-cloudinit.sh
@@ -0,0 +1,68 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+# Configure cloud-init to allow image instanciation-time customization.
+# The only cloud-init "datasources" that make sense for this image are:
+#
+# * "None": this is the last resort when nothing works. This prevents
+#   cloud-init from exiting with an error because it didn't find any datasource
+#   at all. This in turns allow to start the QEMU image with no
+#
+# * "NoCloud": this fetches the cloud-init data from a ISO disk mounted into
+#   the new VM or from other non-network resources. See
+#   https://cloudinit.readthedocs.io/en/latest/topics/datasources/nocloud.html
+#   for more information.
+#
+# Ultimately, this configures "datasource_list" in
+# /etc/cloud/cloud.cfg.d/90_dpkg.cfg.
+echo "cloud-init       cloud-init/datasources  multiselect     NoCloud, None" \
+       | debconf-set-selections
+
+# Configure localepurge to remove unused locales. This makes the image smaller.
+echo "localepurge      localepurge/use-dpkg-feature    boolean true" \
+       | debconf-set-selections
+echo "localepurge      localepurge/nopurge     multiselect     en, en_US.UTF-8" \
+       | debconf-set-selections
+
+# Reconfigure cloud-init
+# Don't "lock" the "wpia" user password. It is configured directly by the
+# preseeding and all the rest depends on it. Cloud-init, with the default
+# configuration, overrides this user's settings and prevents from using it
+# without a SSH key (which needs to be passed by the "cloud" user-data, which
+# we may not always have.)
+cat <<EOF > /etc/cloud/cloud.cfg.d/91-debian-user.cfg
+# System and/or distro specific settings
+# (not accessible to handlers/transforms)
+system_info:
+   # This will affect which distro class gets used
+   distro: debian
+   # Default user name + that default users groups (if added/used)
+   default_user:
+     name: wpia
+     lock_passwd: false
+     gecos: Debian
+     groups: [adm, audio, cdrom, dialout, dip, floppy, netdev, plugdev, sudo, video]
+     sudo: ["ALL=(ALL) NOPASSWD:ALL"]
+     shell: /bin/bash
+   # Other config here will be given to the distro class and/or path classes
+   paths:
+      cloud_dir: /var/lib/cloud/
+      templates_dir: /etc/cloud/templates/
+      upstart_dir: /etc/init/
+   package_mirrors:
+     - arches: [default]
+       failsafe:
+         primary: http://deb.debian.org/debian
+         security: http://security.debian.org/
+   ssh_svcname: ssh
+EOF
+
+# Don't let cloud-init to take over the network configuration.
+# This prevents to have more fine-grained configuration and enable lot of
+# automagic configuration on interfaces that could (should!) be managed outside
+# of cloud-init.
+cat <<EOF > /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg
+network:
+  config: disabled
+EOF