Add debian building, run multiple pipelines at once

debian/scripts/cleanup.sh

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+#!/bin/sh -eux
+
+echo "remove linux-headers"
+dpkg --list \
+  | awk '{ print $2 }' \
+  | grep 'linux-headers' \
+  | xargs apt-get -y purge;
+
+echo "remove specific Linux kernels, such as linux-image-4.9.0-13-amd64 but keeps the current kernel and does not touch the virtual packages"
+dpkg --list \
+    | awk '{ print $2 }' \
+    | grep 'linux-image-[234].*' \
+    | grep -v `uname -r` \
+    | xargs apt-get -y purge;
+
+echo "remove linux-source package"
+dpkg --list \
+    | awk '{ print $2 }' \
+    | grep linux-source \
+    | xargs apt-get -y purge;
+
+echo "remove all development packages"
+dpkg --list \
+    | awk '{ print $2 }' \
+    | grep -- '-dev\(:[a-z0-9]\+\)\?$' \
+    | xargs apt-get -y purge;
+
+echo "remove X11 libraries"
+apt-get -y purge libx11-data xauth libxmuu1 libxcb1 libx11-6 libxext6;
+
+echo "remove obsolete networking packages"
+apt-get -y purge ppp pppconfig pppoeconf;
+
+echo "remove popularity-contest package"
+apt-get -y purge popularity-contest;
+
+echo "remove installation-report package"
+apt-get -y purge installation-report;
+
+echo "autoremoving packages and cleaning apt data"
+apt-get -y autoremove;
+apt-get -y clean;
+
+echo "remove /var/cache"
+find /var/cache -type f -exec rm -rf {} \;
+
+echo "truncate any logs that have built up during the install"
+find /var/log -type f -exec truncate --size=0 {} \;
+
+echo "blank netplan machine-id (DUID) so machines get unique ID generated on boot"
+truncate -s 0 /etc/machine-id
+
+echo "remove the contents of /tmp and /var/tmp"
+rm -rf /tmp/* /var/tmp/*
+
+echo "force a new random seed to be generated"
+rm -f /var/lib/systemd/random-seed
+
+echo "clear the history so our install isn't there"
+rm -f /root/.wget-hsts
+export HISTSIZE=0

debian/scripts/networking.sh

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+#!/bin/sh -eux
+
+# Disable Predictable Network Interface names and use eth0
+sed -i 's/en[[:alnum:]]*/eth0/g' /etc/network/interfaces;
+sed -i 's/GRUB_CMDLINE_LINUX="\(.*\)"/GRUB_CMDLINE_LINUX="net.ifnames=0 biosdevname=0 \1"/g' /etc/default/grub;
+update-grub;
+
+# Adding a 2 sec delay to the interface up, to make the dhclient happy
+echo "pre-up sleep 2" >> /etc/network/interfaces

debian/scripts/systemd.sh

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+#!/bin/sh -eux
+
+# https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=751636
+apt-get install libpam-systemd

debian/scripts/update.sh

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+#!/bin/sh -eux
+
+arch="`uname -r | sed 's/^.*[0-9]\{1,\}\.[0-9]\{1,\}\.[0-9]\{1,\}\(-[0-9]\{1,2\}\)-//'`"
+debian_version="`lsb_release -r | awk '{print $2}'`";
+major_version="`echo $debian_version | awk -F. '{print $1}'`";
+
+# Disable systemd apt timers/services
+systemctl stop apt-daily.timer;
+systemctl stop apt-daily-upgrade.timer;
+systemctl disable apt-daily.timer;
+systemctl disable apt-daily-upgrade.timer;
+systemctl mask apt-daily.service;
+systemctl mask apt-daily-upgrade.service;
+systemctl daemon-reload;
+
+# Disable periodic activities of apt
+cat <<EOF >/etc/apt/apt.conf.d/10periodic;
+APT::Periodic::Enable "0";
+APT::Periodic::Update-Package-Lists "0";
+APT::Periodic::Download-Upgradeable-Packages "0";
+APT::Periodic::AutocleanInterval "0";
+APT::Periodic::Unattended-Upgrade "0";
+EOF
+
+apt-get update;
+
+apt-get -y upgrade linux-image-$arch;
+apt-get -y install linux-headers-`uname -r`;