#!/bin/sh
#
# About:Setup Dependences for Virtual Box Sandbox
#       meant for OpenStack Labs.
#
# Contact: pranav@aptira.com
# Copyright : Aptira @aptira,aptira.com
# License: Apache Software License (ASL) 2.0
###################################################
# This Script will download the required packages #
# using apt-get --download-only option.           #
#                                                 #
# This script will install and get your VM ready  #
# for OpenStack.                                  #
###################################################

# Assumptions : It is assumed that internet is
# switched on/VM has internet connection.
# Internet is required for this script to run.

# Add a Few required packages
apt-get install -y ubuntu-cloud-keyring python-software-properties software-properties-common python-keyring
# Update apt-get
apt-get -y update

# Add OpenStack Grizzly Repo.
echo deb http://ubuntu-cloud.archive.canonical.com/ubuntu precise-updates/grizzly main >> /etc/apt/sources.list.d/grizzly.list

# Update apt-get, Upgrade Installed Packages and Kernel Upgrade
apt-get -y --download-only update
apt-get -y --download-only upgrade
apt-get -y --download-only dist-upgrade
apt-get install -y --download-only ubuntu-cloud-keyring python-software-properties software-properties-common python-keyring

# Configure the Network Interfaces by using the templates in the networking
# part of this folder.

# TO BE ADDED LATER ON.

#service networking restart
configure_networks(){
    ## Check if its single node or multi node
    if [ "$1" == "single-node" ]; then
        # Copy Single Node interfaces file to /etc/network/
        echo "Configuring Network for Single Node"
        cp --no-preserve=mode,ownsership Templates/interfaces-single /etc/network/interfaces

    else
        if [ "$1" == "multi-node" ]; then
            ## If it is multi node, check which type of node it is.
            case "$2" in 
                "control")
                    ## Configure network for control node
                    echo "Configuring Network for Control Node"
                    cp --no-preserve=mode,ownership Templates/interfaces-control /etc/network/interfaces
                    ;;

                "compute")
                    ## Configure network for compute node.
                    echo "Configuring Network for Compute Node"
                    cp --no-preserve=mode,ownership Templates/interfaces-compute /etc/network/interfaces
                    ;;
                "network")
                    ## Configure network for network node.
                    echo "Configuring Network for Network Node"
                    cp --no-preserve=mode,ownership Templates/interfaces-network /etc/network/interfaces
                    ;;
                *)
                    echo "Invalid Input, cannot figure out which node this is. Error!!!"
            esac
        fi
    fi

    service networking restart
}

# Get (apt-get) all the packages and download them but not install them using
# the --download-only option.
# Advantage/Use/Need of --download-only in this particular case is due to the
# weird use-case of teaching OpenStack by deploying OpenStack in a local/remote
# location (College,Uni,Office,Conferences etc.) and the practise of keeping
# all the packages downloaded but-not-installed eliminates the need for
# internet while deploying openstack.

single_node() {
    #Install All package on the given Virtual Machine ...
    apt-get install -y --download-only mysql-server python-mysqldb rabbitmq-server ntp vlan bridge-utils \
        keystone glance openvswitch-switch openvswitch-datapath-dkms quantum-server quantum-plugin-openvswitch \
        quantum-plugin-openvswitch-agent dnsmasq quantum-dhcp-agent quantum-l3-agent cpu-checker kvm libvirt-bin \
        pm-utils nova-api nova-cert novnc nova-consoleauth nova-scheduler nova-novncproxy nova-doc nova-conductor \
        nova-compute-kvm cinder-api cinder-scheduler cinder-volume iscsitarget open-iscsi iscsitarget-dkms openstack-dashboard memcached

    configure_networks $1 $2

}

multi_node(){
    # $2 will be the node defination -- like control node, compute node,
    # network node.
    configure_networks $1 $2
    # Install packages as per the node defination ...

    # TO BE DONE.

    ## Also need to figure out whether to download all the packages even
    ## if they are not playing any role in the given node to keep the scripts simpler
}

if [ "$1" == "single-node" ]; then
    single_node $1 $2
else
    if [ "$1" == "multi-node" ]; then
        multi_node $1 $2
    else
        echo "invalid option ... cannot proceede"
    fi
fi

echo -e "Your VM is ready for OpenStack Installation ... \n you dont need internet from now on"