#! /bin/bash
# Shared .setup between all Debian/Ubuntu flavors

set -ex

# Enable a console on ttyS0 so that we can log-in via vm-run.
# and make the boot up more verbose
sed -i 's/GRUB_CMDLINE_LINUX_DEFAULT/# GRUB_CMDLINE_LINUX_DEFAULT/' /etc/default/grub

# Disable udev network interface naming, and keep kernel ones; our tests
# tightly control hotplug order and thus interface names
echo 'GRUB_CMDLINE_LINUX="console=ttyS0,115200 net.ifnames=0 biosdevname=0"' >>/etc/default/grub
update-grub
sed -i 's/ens[^[:space:]]*/eth0/' /etc/network/interfaces

# We install all dependencies of the cockpit packages since we want
# them to not spontaneously change from one test run to the next when
# the distribution repository is updated.
# docker.io \
#
COCKPIT_DEPS="\
cryptsetup \
docker.io
libjson-glib-1.0-0 \
libpcp3 \
libpolkit-agent-1-0 \
libpolkit-gobject-1-0 \
libpwquality-tools \
libssh-4 \
libteam-utils \
libvirt-daemon-system \
network-manager \
pcp \
policykit-1 \
realmd \
selinux-basics \
thin-provisioning-tools \
xdg-utils \
udisks2 \
"

# We also install the packages necessary to join a FreeIPA domain so
# that we don't have to go to the network during a test run.
IPA_CLIENT_PACKAGES="\
sssd-tools \
packagekit \
"

TEST_PACKAGES="\
curl \
gdb \
iproute \
mdadm \
qemu-kvm \
virtinst \
xfsprogs \
"

RELEASE=$(grep -m1 ^deb /etc/apt/sources.list | awk '{print $3}')
case "$RELEASE" in
    stable)
        # docker.io is in backports only
        echo "deb http://deb.debian.org/debian jessie-backports main" >/etc/apt/sources.list.d/jessie-backports.list
        ;;

    testing)
        # https://tracker.debian.org/pcp got removed from testing
        COCKPIT_DEPS="${COCKPIT_DEPS/libpcp3 /}"
        COCKPIT_DEPS="${COCKPIT_DEPS/pcp /}"

        TEST_PACKAGES="$TEST_PACKAGES systemd-coredump"

        # modern udisks (after re-merging storaged)
        echo "deb http://deb.debian.org/debian experimental main" >/etc/apt/sources.list.d/experimental.list
        COCKPIT_DEPS_EXPERIMENTAL="udisks2"

        # docker.io got removed from testing; use backports-version
        echo "deb http://deb.debian.org/debian jessie-backports main" >/etc/apt/sources.list.d/jessie-backports.list
        ;;

    zesty)
        # HACK: https://launchpad.net/bugs/1693154
        mkdir /etc/krb5.conf.d/
        ;;
esac

if grep -q 'ID=ubuntu' /etc/os-release; then
    TEST_PACKAGES="$TEST_PACKAGES systemd-coredump"

    IPA_CLIENT_PACKAGES="$IPA_CLIENT_PACKAGES freeipa-client"
    PBUILDER_OPTS='COMPONENTS="main universe"'

    # We want to use/test NetworkManager instead of netplan/networkd for ethernets
    mkdir -p /etc/NetworkManager/conf.d
    touch /etc/NetworkManager/conf.d/10-globally-managed-devices.conf
fi

useradd -m -U -c Administrator -G sudo -s /bin/bash admin
echo admin:foobar | chpasswd

export DEBIAN_FRONTEND=noninteractive
apt-get -y update
eatmydata apt-get -y install $TEST_PACKAGES $COCKPIT_DEPS $IPA_CLIENT_PACKAGES
[ -z "$COCKPIT_DEPS_EXPERIMENTAL" ] || eatmydata apt-get -y install $COCKPIT_DEPS_EXPERIMENTAL

# Prepare for building
#

# extract control files and adjust them for our release, so that we can parse the build deps
mkdir -p /tmp/out
tar -C /tmp/out --strip-components=1 --wildcards -xf "$TEST_SOURCE" '*/debian/'
/tmp/out/tools/debian/adjust-for-release $(lsb_release -sc)

# Disable build-dep installation for the real builds
cat > ~/.pbuilderrc <<- EOF
DISTRIBUTION=$RELEASE
PBUILDERSATISFYDEPENDSCMD=true
$PBUILDER_OPTS
EOF

eatmydata apt-get -y install dpkg-dev pbuilder

pbuilder --create --extrapackages fakeroot
/usr/lib/pbuilder/pbuilder-satisfydepends-classic --control /tmp/out/tools/debian/control --force-version --echo|grep apt-get | pbuilder --login --save-after-login
rm -rf /tmp/out

# Debian does not automatically start the default libvirt network
virsh net-autostart default

# Don't automatically update on boot or daily
systemctl disable apt-daily.service apt-daily.timer || true

# Enable coredumping via systemd
echo "kernel.core_pattern=|/lib/systemd/systemd-coredump %P %u %g %s %t %c %e" > /etc/sysctl.d/50-coredump.conf
printf 'DefaultLimitCORE=infinity\n' >> /etc/systemd/system.conf

# HACK: docker fails without /etc/resolv.conf
# https://bugzilla.redhat.com/show_bug.cgi?id=1448331
mkdir -p /etc/systemd/system/docker.service.d
printf "[Service]\nExecStartPre=/bin/sh -c 'echo -n >> /etc/resolv.conf'\n" > /etc/systemd/system/docker.service.d/resolv.conf
systemctl daemon-reload

# HACK: we need to restart it in case aufs-dkms was installed after docker.io
# and thus docker.io auto-switches its backend
systemctl restart docker || journalctl -u docker

# docker images that we need for integration testing
/var/lib/testvm/docker-images.setup

# in case there are unnecessary packages
eatmydata apt-get -y autoremove || true

# reduce image size
apt-get clean
/var/lib/testvm/zero-disk.setup

# Final tweaks

# Enable persistent journal
mkdir /var/log/journal

# Allow root login with password
sed -i 's/^[# ]*PermitRootLogin .*/PermitRootLogin yes/' /etc/ssh/sshd_config

# Prevent SSH from hanging for a long time when no external network access
echo 'UseDNS no' >> /etc/ssh/sshd_config

# HACK: https://bugzilla.mindrot.org/show_bug.cgi?id=2512
# Disable the restarting of sshd when networking changes
ln -snf /bin/true /etc/network/if-up.d/openssh-server