#!/bin/bash
cd "$(dirname "$(readlink -f "$0")")"
#change to prompts w/ default values
# set defaults
cpu=1
memory=1024
root_disk=10
variant="archlinux"
path="default"
dhcp_opts=""
ssh_key_dir="../../identity_files"
mac=52:54:00:`openssl rand -hex 1`:`openssl rand -hex 1`:`openssl rand -hex 1`
branch="prod"

usage="$(basename "$0") [options] -n server_name
where:
    -n name         Name of new vm/server (required, caps allowed, not fqdn)
    -c number       Numver of CPU cores (default $cpu)
    -r number       Ram in MB (default $memory)
    -d size         Root disk size in GB (default 10)
    -v variant      Linux variant (default archlinux - note should add list of optional variants)
    -p image_path   Path to image (default /virtual/disks/[name].qcow2)
    -m mac_addr     Specify mac address to use - if not specified, will use 52:54:00:*:*:*
    -s subnet       Subnet to place server on (default to 172.16.99.xx)
    -i ip_address   Specify IP address to assign (default to next available in subnet)
    -b branch       Specify branch of build_ansible to use (defult prod)
    -a attach       Attach existing extra disk (use full path to disK, default none)
    -f autodeflate  Autodeflate memory on use - default true, avoid for ipa-server"

# process flags
while getopts "h:n:c:r:d:v:p:m:s:i:b:f:" flag
do
  case "$flag" in
    n) name=${OPTARG};;
    c) cpu=${OPTARG};;
    r) memory=${OPTARG};;
    d) root_disk=${OPTARG};;
    v) variant=${OPTARG};;
    p) path=${OPTARG};;
    m) mac=${OPTARG};;
    s) subnet=${OPTARG};dhcp_opts+=" -s $subnet";;
    i) ip=${OPTARG};dhcp_opts+=" -i $ip";;
    b) branch=${OPTARG};;
    a) attach=${OPTARG};;
    f) deflate=${OPTARG};;
    h) ;&
    *) echo "$usage";exit;;
  esac
done
dhcp_opts+=" -m $mac"

# get name
shift $(($OPTIND - 1))

if [[ -z "$name" ]];then echo "Server name undefined";echo "$usage";exit;fi

lname=`echo $name | tr '[:upper:]' '[:lower:]'`

if [[ "$path" -eq "default" ]];then path=/virtual/disks/${name}.qcow2;fi

img=`./shared_scripts/download_install_image.sh $variant`

#update DHCP
./shared_scripts/update_dhcp.sh $dhcp_opts $lname

# determine if extra disk should be attached
if [ -n "$attach" ]; then attach="--disk ${attach},discard=unmap";fi

#determine if deflate should be on
if [ -n "$deflate" ]; then deflate="--memballoon model=virtio,autodeflate=on";else deflate="--memballoon model=virtio";fi

case "$variant" in
  "archlinux")
        # create cloud-init - replace by grabbing these directly from git
        mkdir -p /tmp/cloud-init


echo "#cloud-config
  - name: root
    ssh_authorized_keys:
      - ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAILG56T1k766Cru14kyXI8WXSJwlO2sVhmH6JeRWy+mfe root@host.actcur.com" > /tmp/cloud-init/user-data

    # create new base VM
    virt-install --name=$name --vcpus=$cpu --memory=$memory --disk path=$path,size=$root_disk,sparse=true,discard=unmap,bus=scsi ${attach} --os-variant=$variant --network bridge=br1,mac=$mac $deflate --cdrom=$img --graphics vnc --cloud-init user-data="/tmp/cloud-init/user-data" --autoconsole=none

    #wait until server is available
    echo "Waiting for server to be available"
    while true
    do
      sleep 1
      ping -c 1 ${lname}.actcur.com 2>&1 > /dev/null
      if [ $? -eq 0 ]; then break;fi
    done
    echo "server up, waiting for ssh"

    sleep 30

    sed "s/REPLACE_HOSTNAME/${lname}.actcur.com/g" ../base_files/user_configuration.json > /tmp/user_configuration.json
    rs=$((root_disk*1024-206))
    sed -i "s/REPLACE_SIZE/${rs}/g" /tmp/user_configuration.json

    ssh-keygen -R ${lname}.actcur.com
    ssh-keyscan ${lname}.actcur.com | grep -v "#" | grep "ecdsa-sha2-nistp256" >> ~/.ssh/known_hosts

    scp -i $ssh_key_dir/id_arch_builder /tmp/user_configuration.json ${lname}.actcur.com:/tmp/user_configuration.json
    ssh -i $ssh_key_dir/id_arch_builder ${lname}.actcur.com "systemctl mask reflector.service; echo 'Server = https://pkg.actcur.com/repo/archlinux/\$repo/os/\$arch' > /etc/pacman.d/mirrorlist"
    ssh -i $ssh_key_dir/id_arch_builder ${lname}.actcur.com "archinstall --config /tmp/user_configuration.json --silent"
    ssh -i $ssh_key_dir/id_arch_builder ${lname}.actcur.com "ln -s /usr/lib/systemd/system/sshd.service /mnt/archinstall/etc/systemd/system/multi-user.target.wants/sshd.service"
    ssh -i $ssh_key_dir/id_arch_builder ${lname}.actcur.com "cp -r /root/.ssh/ /mnt/archinstall/root/;reboot"
    ;;
  "alma")
    # set up kickstart file
    sed "s/REPLACE_HOSTNAME/${lname}.actcur.com/g" ../base_files/kickstart.cfg > /tmp/kickstart.cfg

    # create new VM
    virt-install --name=$name --vcpus=$cpu --memory=$memory --disk path=$path,size=$root_disk,sparse=true,discard=unmap,bus=scsi --os-variant=almalinux9 --network bridge=br1,mac=$mac $deflate --location=$img --graphics vnc --initrd-inject /tmp/kickstart.cfg --extra-args "inst.ks=file:/kickstart.cfg" --autoconsole=none

    echo "server up, waiting for install to complete"

    sleep 60

    # wait for install to complete and server to shut down/reboot
    while true
    do
      sleep 1
      ping -c 1 ${lname}.actcur.com 2>&1 > /dev/null
      if [ $? -ne 0 ]; then break;fi
    done
    ;;
esac

sleep 10
virsh start $name

#wait until server is available
echo "Waiting for server to be available"
while true
do
  sleep 1
  ping -c 1 ${lname}.actcur.com 2>&1 > /dev/null
  if [ $? -eq 0 ]; then break;fi
done
echo "server up, waiting for ssh"

sleep 30

ssh-keygen -R ${lname}.actcur.com
ssh-keyscan ${lname}.actcur.com | grep -v "#" | grep "ecdsa-sha2-nistp256" >> ~/.ssh/known_hosts

# install some dependencies
case "$variant" in
  "arch")
    ssh -i $ssh_key_dir/id_arch_builder ${lname}.actcur.com "pacman -Sy --noconfirm ansible-core git"
    ;;
  "alma")
    ssh -i $ssh_key_dir/id_arch_builder ${lname}.actcur.com "dnf config-manager --set-enabled crb;yum install -y ansible-core git epel-release"
  ;;
esac

ssh -i $ssh_key_dir/id_arch_builder ${lname}.actcur.com "ansible-galaxy collection install community.general"
ssh -i $ssh_key_dir/id_arch_builder ${lname}.actcur.com "ansible-galaxy collection install community.crypto"
ssh -i $ssh_key_dir/id_arch_builder ${lname}.actcur.com "ansible-galaxy collection install ansible.posix"

# run ansible
ssh -i $ssh_key_dir/id_arch_builder ${lname}.actcur.com "mkdir /ansible/; curl -k 'https://git.actcur.com/actcur-ansible/playbook-builder/raw/branch/$branch/build_ansible.sh' -H 'accept: application/raw' -o /ansible/build_ansible.sh;echo "$branch" > /ansible/branch;/bin/bash /ansible/build_ansible.sh"

ssh -i $ssh_key_dir/id_arch_builder ${lname}.actcur.com "/bin/bash /ansible/build_ansible.sh"

ssh -i $ssh_key_dir/id_arch_builder ${lname}.actcur.com "git config --global user.email 'ejparker@actcur.com';git config --global user.name 'Beth Parker'"

systemctl restart nfs-server