#!/bin/bash
## This script is to automate loading of vendor specific docker images
## and instalation of configuration files and vendor specific packages
## to debian file system.
##
## USAGE:
##   ./sonic_debian_extension.sh FILESYSTEM_ROOT PLATFORM_DIR
## PARAMETERS:
##   FILESYSTEM_ROOT
##          Path to debian file system root directory

FILESYSTEM_ROOT=$1
[ -n "$FILESYSTEM_ROOT" ] || {
    echo "Error: no or empty FILESYSTEM_ROOT argument"
    exit 1
}

PLATFORM_DIR=$2
[ -n "$PLATFORM_DIR" ] || {
    echo "Error: no or empty PLATFORM_DIR argument"
    exit 1
}

## Enable debug output for script
set -x -e

. functions.sh
BUILD_TEMPLATES=files/build_templates
IMAGE_CONFIGS=files/image_config

clean_sys() {
    sudo umount $FILESYSTEM_ROOT/sys/fs/cgroup/*            \
                $FILESYSTEM_ROOT/sys/fs/cgroup              \
                $FILESYSTEM_ROOT/sys || true
}
trap_push clean_sys
sudo LANG=C chroot $FILESYSTEM_ROOT mount sysfs /sys -t sysfs

sudo chroot $FILESYSTEM_ROOT service docker start

# Apply apt configuration files
sudo cp $IMAGE_CONFIGS/apt/sources.list $FILESYSTEM_ROOT/etc/apt/
sudo cp -R $IMAGE_CONFIGS/apt/sources.list.d/ $FILESYSTEM_ROOT/etc/apt/
cat $IMAGE_CONFIGS/apt/sonic-dev.gpg.key | sudo LANG=C chroot $FILESYSTEM_ROOT apt-key add -

# Update apt's snapshot of its repos
sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get update

# Apply environtment configuration files
sudo cp $IMAGE_CONFIGS/environment/environment $FILESYSTEM_ROOT/etc/
sudo cp $IMAGE_CONFIGS/environment/motd $FILESYSTEM_ROOT/etc/

# Create all needed directories
sudo mkdir -p $FILESYSTEM_ROOT/etc/sonic/
sudo mkdir -p $FILESYSTEM_ROOT/usr/share/sonic/templates/

# Install dependencies for SONiC config engine
# TODO: pip-install instead of apt-get after config engine wrapped into a wheel, even better use pip implicitly installing dependencies
sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y install \
    python-lxml    \
    python-jinja2  \
    python-netaddr \
    python-ipaddr  \
    python-yaml

# Install SONiC config engine
sudo dpkg --root=$FILESYSTEM_ROOT -i {{config_engine}}

# Install SONiC Utilities (and its dependencies via 'apt-get -y install -f')
sudo dpkg --root=$FILESYSTEM_ROOT -i target/debs/python-sonic-utilities_*.deb || \
    sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y install -f

# SONiC utilities installs bash-completion as a dependency. However, it is disabled by default
# in bash.bashrc, so we copy a version of the file with it enabled here.
sudo cp -f $IMAGE_CONFIGS/bash/bash.bashrc $FILESYSTEM_ROOT/etc/

# Install SONiC Device Data  (and its dependencies via 'apt-get -y install -f')
sudo dpkg --root=$FILESYSTEM_ROOT -i target/debs/sonic-device-data_*.deb || \
    sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y install -f

# Copy NTP configuration files and templates
sudo cp $IMAGE_CONFIGS/ntp/ntp-config.service $FILESYSTEM_ROOT/etc/systemd/system/
sudo LANG=C chroot $FILESYSTEM_ROOT systemctl enable ntp-config.service
sudo cp $IMAGE_CONFIGS/ntp/ntp-config.sh $FILESYSTEM_ROOT/usr/bin/
sudo cp $IMAGE_CONFIGS/ntp/ntp.conf.j2 $FILESYSTEM_ROOT/usr/share/sonic/templates/
sudo cp $IMAGE_CONFIGS/ntp/ntp.yml $FILESYSTEM_ROOT/etc/sonic/

# Copy rsyslog configuration files and templates
sudo cp $IMAGE_CONFIGS/rsyslog/rsyslog-config.service  $FILESYSTEM_ROOT/etc/systemd/system/
sudo LANG=C chroot $FILESYSTEM_ROOT systemctl enable rsyslog-config.service
sudo cp $IMAGE_CONFIGS/rsyslog/rsyslog-config.sh $FILESYSTEM_ROOT/usr/bin/
sudo cp $IMAGE_CONFIGS/rsyslog/rsyslog.conf.j2 $FILESYSTEM_ROOT/usr/share/sonic/templates/
sudo cp $IMAGE_CONFIGS/rsyslog/rsyslog.yml $FILESYSTEM_ROOT/etc/sonic/
sudo cp $IMAGE_CONFIGS/rsyslog/rsyslog.d/* $FILESYSTEM_ROOT/etc/rsyslog.d/

# Copy interfaces configuration files and templates
sudo cp $IMAGE_CONFIGS/interfaces/interfaces-config.service  $FILESYSTEM_ROOT/etc/systemd/system/
sudo LANG=C chroot $FILESYSTEM_ROOT systemctl enable interfaces-config.service
sudo cp $IMAGE_CONFIGS/interfaces/interfaces-config.sh $FILESYSTEM_ROOT/usr/bin/
sudo cp $IMAGE_CONFIGS/interfaces/*.j2 $FILESYSTEM_ROOT/usr/share/sonic/templates/

# Copy initial interfaces configuration file, will be overwritten on first boot
sudo cp $IMAGE_CONFIGS/interfaces/init_interfaces $FILESYSTEM_ROOT/etc/network

# Copy updategraph script and service file
sudo cp $IMAGE_CONFIGS/updategraph/updategraph.service  $FILESYSTEM_ROOT/etc/systemd/system/
sudo LANG=C chroot $FILESYSTEM_ROOT systemctl enable updategraph.service
sudo cp $IMAGE_CONFIGS/updategraph/updategraph $FILESYSTEM_ROOT/usr/bin/
{% if enable_dhcp_graph_service == "y" %}
sudo bash -c "echo enabled=true > $FILESYSTEM_ROOT/etc/sonic/updategraph.conf"
sudo bash -c "echo src=dhcp >> $FILESYSTEM_ROOT/etc/sonic/updategraph.conf"
sudo bash -c "echo dhcp_as_static=true >> $FILESYSTEM_ROOT/etc/sonic/updategraph.conf"
{% else %}
sudo bash -c "echo enabled=false > $FILESYSTEM_ROOT/etc/sonic/updategraph.conf"
{% endif %}

# Copy SNMP configuration files
sudo cp $IMAGE_CONFIGS/snmp/snmp.yml $FILESYSTEM_ROOT/etc/sonic/

# Generate build version file
export git_revision=$(git rev-parse --short HEAD)
export debian_version=`cat $FILESYSTEM_ROOT/etc/debian_version`
export kernel_version={{kversion}}
j2 $BUILD_TEMPLATES/sonic_version.yml.j2 > sonic_version.yml
sudo mv sonic_version.yml $FILESYSTEM_ROOT/etc/sonic/

# Copy sudoers configuration file
sudo cp $IMAGE_CONFIGS/sudoers/sudoers $FILESYSTEM_ROOT/etc/

## Install package without starting service
## ref: https://wiki.debian.org/chroot
sudo tee -a $FILESYSTEM_ROOT/usr/sbin/policy-rc.d > /dev/null <<EOF
#!/bin/sh
exit 101
EOF
sudo chmod a+x $FILESYSTEM_ROOT/usr/sbin/policy-rc.d

{% if installer_debs.strip() -%}
{% for deb in installer_debs.strip().split(' ') -%}
if [ $sonic_asic_platform == "mellanox" ]; then
sudo dpkg --extract {{deb}} $FILESYSTEM_ROOT
else
sudo dpkg --root=$FILESYSTEM_ROOT -i {{deb}} || sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y install -f
fi
{% endfor %}
{% endif %}

## Run depmod command for target kernel modules
sudo LANG=C chroot $FILESYSTEM_ROOT depmod -a {{kversion}}

## download all dependency packages for platform debian packages
{% if lazy_installer_debs.strip() -%}
{% for file in lazy_installer_debs.strip().split(' ') -%}

{% set dev = file.split('@')[0] -%}
{% set deb = file.split('@')[1] -%}
{% set debfilename = deb.split('/')|last -%}
{% set debname = debfilename.split('_')|first -%}

sudo dpkg --root=$FILESYSTEM_ROOT -i {{deb}} || sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y install -f --download-only

sudo mkdir -p $FILESYSTEM_ROOT/$PLATFORM_DIR/{{dev}}
sudo cp {{ deb }} $FILESYSTEM_ROOT/$PLATFORM_DIR/{{dev}}/
for f in `find $FILESYSTEM_ROOT/var/cache/apt/archives -name "*.deb"`; do
    sudo mv $f $FILESYSTEM_ROOT/$PLATFORM_DIR/{{dev}}/
done

sudo dpkg --root=$FILESYSTEM_ROOT -P {{ debname }}

{% endfor %}
{% endif %}

sudo rm -f $FILESYSTEM_ROOT/usr/sbin/policy-rc.d

## copy platform rc.local
sudo cp $IMAGE_CONFIGS/platform/rc.local $FILESYSTEM_ROOT/etc/

{% if installer_images.strip() -%}
{% for image in installer_images.strip().split(' ') -%}
sudo LANG=C chroot $FILESYSTEM_ROOT docker load < {{image}}
{% endfor %}
sudo chroot $FILESYSTEM_ROOT service docker stop
{% for script in installer_start_scrips.split(' ') -%}
sudo cp {{script}} $FILESYSTEM_ROOT/usr/bin/
{% endfor %}
{% for service in installer_services.split(' ') -%}
if [ -f {{service}} ]; then
    sudo cp {{service}} $FILESYSTEM_ROOT/etc/systemd/system/
    sudo LANG=C chroot $FILESYSTEM_ROOT systemctl enable {{service}}
fi
{% endfor %}
sudo LANG=C chroot $FILESYSTEM_ROOT fuser -km /sys || true
sudo LANG=C chroot $FILESYSTEM_ROOT umount -lf /sys
{% endif %}

{% for file in installer_extra_files.split(' ') -%}
{% if file.strip() -%}
{% set src = file.split(':')[0] -%}
{% set dst = file.split(':')[1] -%}
sudo cp {{src}} $FILESYSTEM_ROOT/{{dst}}
{% endif -%}
{% endfor -%}