#!/bin/sh
set -eu
arch=$(dpkg --print-architecture)
if [ "$arch" != i386 -a "$arch" != amd64 ]; then
    # we don't have LXD images for most non-x86 architectures
    echo "Skipping on non-x86 architecture $arch"
    exit 0
fi

# Detect LXD API extensions
lxd_extension() {
    lxc info | grep -q "^\- ${1}$"
}

# Configure LXD networking
if lxd_extension "network"; then
    lxc network create lxdbr0 ipv4.address=10.0.8.1/24 ipv4.nat=true ipv6.address=fd3b:ba81:269c:19c4::1/64 --force-local
    lxc network attach-profile lxdbr0 default eth0 --force-local
else
    cat <<EOF > /etc/default/lxd-bridge
 USE_LXD_BRIDGE="true"
 LXD_BRIDGE="lxdbr0"
 UPDATE_PROFILE="true"
 LXD_CONFILE=""
 LXD_DOMAIN="lxd"
 LXD_IPV4_ADDR="10.0.8.1"
 LXD_IPV4_NETMASK="255.255.255.0"
 LXD_IPV4_NETWORK="10.0.8.1/24"
 LXD_IPV4_DHCP_RANGE="10.0.8.10,10.0.8.254"
 LXD_IPV4_DHCP_MAX="200"
 LXD_IPV4_NAT="true"
 LXD_IPV6_ADDR="fd3b:ba81:269c:19c4::1"
 LXD_IPV6_MASK="64"
 LXD_IPV6_NETWORK="fd3b:ba81:269c:19c4::1/64"
 LXD_IPV6_NAT="false"
 LXD_IPV6_PROXY="false"
EOF
fi

# Configure LXD storage
if lxd_extension "storage"; then
    lxc storage create default dir
    lxc profile device add default root disk path=/ pool=default
fi

# work around broken PTMU in Canonical Scalingstack
iptables -t mangle -A FORWARD -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu

cat <<EOF | su - $AUTOPKGTEST_NORMAL_USER
autopkgtest-build-lxd images:ubuntu/xenial/$arch
export AUTOPKGTEST_TEST_LXD=autopkgtest/ubuntu/xenial/$arch
cd $(pwd)
tests/autopkgtest LxdRunner
EOF