#!/bin/bash
# shellcheck disable=SC2034,SC2154,SC1091
set -ex
##############################################################################
# Copyright (c) 2017 Ericsson AB, Mirantis Inc., Enea AB and others.
# jonas.bjurel@ericsson.com
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################

##############################################################################
# BEGIN of Exit handlers
#
do_exit () {
    clean
    echo "Exiting ..."
}
#
# End of Exit handlers
##############################################################################

##############################################################################
# BEGIN of usage description
#
usage ()
{
cat << EOF
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
$(notify "$(basename "$0"): Deploy the Fuel@OPNFV MCP stack" 3)

$(notify "USAGE:" 2)
  $(basename "$0") -b base-uri -l lab-name -p pod-name -s deploy-scenario \\
    [-B PXE Bridge [-B Mgmt Bridge [-B Internal Bridge [-B Public Bridge]]]]

$(notify "OPTIONS:" 2)
  -b  Base-uri for the stack-configuration structure
  -B  Bridge(s): 1st usage = PXE, 2nd = Mgmt, 3rd = Internal, 4th = Public
  -h  Print this message and exit
  -l  Lab-name
  -p  Pod-name
  -s  Deploy-scenario short-name

$(notify "DISABLED OPTIONS (not yet supported with MCP):" 3)
  -d  (disabled) Dry-run
  -e  (disabled) Do not launch environment deployment
  -f  (disabled) Deploy on existing Salt master
  -F  (disabled) Do only create a Salt master
  -i  (disabled) iso url
  -L  (disabled) Deployment log path and file name
  -S  (disabled) Storage dir for VM images
  -T  (disabled) Timeout, in minutes, for the deploy.

$(notify "Description:" 2)
Deploys the Fuel@OPNFV stack on the indicated lab resource.

This script provides the Fuel@OPNFV deployment abstraction.
It depends on the OPNFV official configuration directory/file structure
and provides a fairly simple mechanism to execute a deployment.

$(notify "Input parameters to the build script are:" 2)
-b Base URI to the configuration directory (needs to be provided in a URI
   style, it can be a local resource: file:// or a remote resource http(s)://)
-B Bridges to be used by deploy script. It can be specified several times,
   or as a comma separated list of bridges, or both: -B br1 -B br2,br3
   First occurence sets PXE Brige, next Mgmt, then Internal and Public.
   For an empty value, the deploy script will use virsh to create the default
   expected network (e.g. -B pxe,,,public will use existing "pxe" and "public"
   bridges, respectively create "mgmt" and "internal").
   The default is pxebr.
-h Print this message and exit
-l Lab name as defined in the configuration directory, e.g. lf
-p POD name as defined in the configuration directory, e.g. pod-1
-s Deployment-scenario, this points to a short deployment scenario name, which
   has to be defined in config directory (e.g. os-odl_l2-nofeature-noha).

$(notify "Disabled input parameters (not yet supported with MCP):" 3)
-d (disabled) Dry-run - Produce deploy config files, but do not execute deploy
-f (disabled) Deploy on existing Salt master
-e (disabled) Do not launch environment deployment
-F (disabled) Do only create a Salt master
-L (disabled) Deployment log path and name, eg. -L /home/jenkins/job.log.tar.gz
-S (disabled) Storage dir for VM images, default is fuel/deploy/images
-T (disabled) Timeout, in minutes, for the deploy.
   It defaults to using the DEPLOY_TIMEOUT environment variable when defined.
-i (disabled) .iso image to be deployed (needs to be provided in a URI
   style, it can be a local resource: file:// or a remote resource http(s)://)

$(notify "[NOTE] sudo & virsh priviledges are needed for this script to run" 3)

Example:

$(notify "sudo $(basename "$0") \\
  -b file:///home/jenkins/lab-config \\
  -l lf -p pod1 \\
  -s os-odl_l2-nofeature-noha" 2)
EOF
}

#
# END of usage description
##############################################################################

##############################################################################
# BEGIN of colored notification wrapper
#
notify() {
    tput setaf "${2:-1}" || true
    echo -en "${1:-"[WARN] Unsupported opt arg: $3\\n"}"
    tput sgr0
}
#
# END of colored notification wrapper
##############################################################################

##############################################################################
# BEGIN of deployment clean-up
#
clean() {
    echo "Cleaning up deploy tmp directories"
}
#
# END of deployment clean-up
##############################################################################

##############################################################################
# BEGIN of variables to customize
#
SCRIPT_PATH=$(readlink -f "$(dirname "${BASH_SOURCE[0]}")")
DEPLOY_DIR=$(cd "${SCRIPT_PATH}/../mcp/scripts"; pwd)
OPNFV_BRIDGES=('pxe' 'mgmt' 'internal' 'public')
URI_REGEXP='(file|https?|ftp)://.*'

export SSH_KEY=${SSH_KEY:-mcp.rsa}
export SALT_MASTER=${SALT_MASTER_IP:-192.168.10.100}
export SSH_OPTS="-o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -i ${SSH_KEY}"

# Variables below are disabled for now, to be re-introduced or removed later
set +x
USE_EXISTING_FUEL=''
FUEL_CREATION_ONLY=''
NO_DEPLOY_ENVIRONMENT=''
STORAGE_DIR=''
DRY_RUN=0
if ! [ -z "${DEPLOY_TIMEOUT}" ]; then
    DEPLOY_TIMEOUT="-dt ${DEPLOY_TIMEOUT}"
else
    DEPLOY_TIMEOUT=""
fi
set -x
#
# END of variables to customize
##############################################################################

##############################################################################
# BEGIN of main
#
set +x
OPNFV_BRIDGE_IDX=0
while getopts "b:B:dfFl:L:p:s:S:T:i:he" OPTION
do
    case $OPTION in
        b)
            BASE_CONFIG_URI=${OPTARG}
            if [[ ! $BASE_CONFIG_URI =~ ${URI_REGEXP} ]]; then
                notify "[ERROR] -b $BASE_CONFIG_URI - invalid URI\n"
                usage
                exit 1
            fi
            ;;
        B)
            OIFS=${IFS}
            IFS=','
            OPT_BRIDGES=($OPTARG)
            for bridge in "${OPT_BRIDGES[@]}"; do
                if [ -n "${bridge}" ]; then
                    OPNFV_BRIDGES[${OPNFV_BRIDGE_IDX}]="${bridge}"
                fi
                OPNFV_BRIDGE_IDX=$[OPNFV_BRIDGE_IDX + 1]
            done
            IFS=${OIFS}
            ;;
        d)
            notify '' 3 "${OPTION}"; continue
            DRY_RUN=1
            ;;
        f)
            notify '' 3 "${OPTION}"; continue
            USE_EXISTING_FUEL='-nf'
            ;;
        F)
            notify '' 3 "${OPTION}"; continue
            FUEL_CREATION_ONLY='-fo'
            ;;
        e)
            notify '' 3 "${OPTION}"; continue
            NO_DEPLOY_ENVIRONMENT='-nde'
            ;;
        l)
            TARGET_LAB=${OPTARG}
            ;;
        L)
            notify '' 3 "${OPTION}"; continue
            DEPLOY_LOG="-log ${OPTARG}"
            ;;
        p)
            TARGET_POD=${OPTARG}
            ;;
        s)
            DEPLOY_SCENARIO=${OPTARG}
            ;;
        S)
            notify '' 3 "${OPTION}"; continue
            if [[ ${OPTARG} ]]; then
                STORAGE_DIR="-s ${OPTARG}"
            fi
            ;;
        T)
            notify '' 3 "${OPTION}"; continue
            DEPLOY_TIMEOUT="-dt ${OPTARG}"
            ;;
        i)
            notify '' 3 "${OPTION}"; continue
            ISO=${OPTARG}
            if [[ ! $ISO =~ ${URI_REGEXP} ]]; then
                notify "[ERROR] -i $ISO - invalid URI\n"
                usage
                exit 1
            fi
            ;;
        h)
            usage
            exit 0
            ;;
        *)
            notify "[ERROR] Arguments not according to new argument style\n"
            exit 1
            ;;
    esac
done

if [[ "$(sudo whoami)" != 'root' ]]; then
    notify "This script requires sudo rights\n" 1>&2
    exit 1
fi

if ! virsh list >/dev/null 2>&1; then
    notify "This script requires hypervisor access\n" 1>&2
    exit 1
fi

# Validate mandatory arguments are set
# FIXME(armband): Bring back support for BASE_CONFIG_URI
if [ -z "${TARGET_LAB}" ] || [ -z "${TARGET_POD}" ] || \
   [ -z "${DEPLOY_SCENARIO}" ]; then
    notify "[ERROR] At least one of the mandatory args is missing!\n" 1>&2
    usage
    exit 1
fi

set -x

# Enable the automatic exit trap
trap do_exit SIGINT SIGTERM EXIT

# Set no restrictive umask so that Jenkins can removeeee any residuals
umask 0000

clean

pushd "${DEPLOY_DIR}" > /dev/null
# Prepare the deploy config files based on lab/pod information, deployment
# scenario, etc.

# Install required packages
[ -n "$(command -v apt-get)" ] && sudo apt-get install -y \
  git make rsync mkisofs curl virtinst cpu-checker qemu-kvm
[ -n "$(command -v yum)" ] && sudo yum install -y \
  git make rsync genisoimage curl virt-install qemu-kvm

# Check scenario file existence
if [[ ! -f  ../config/${DEPLOY_SCENARIO}.yaml ]]; then
    notify "[WARN] ${DEPLOY_SCENARIO}.yaml not found! \
            Setting simplest scenario (os-nosdn-nofeature-noha)\n" 3
    DEPLOY_SCENARIO='os-nosdn-nofeature-noha'
fi

# Get required infra deployment data
source lib.sh
eval "$(parse_yaml "../config/defaults.yaml")"
eval "$(parse_yaml "../config/${DEPLOY_SCENARIO}.yaml")"

export CLUSTER_DOMAIN=${cluster_domain}

declare -A virtual_nodes_ram virtual_nodes_vcpus
for node in "${virtual_nodes[@]}"; do
    virtual_custom_ram="virtual_${node}_ram"
    virtual_custom_vcpus="virtual_${node}_vcpus"
    virtual_nodes_ram[$node]=${!virtual_custom_ram:-$virtual_default_ram}
    virtual_nodes_vcpus[$node]=${!virtual_custom_vcpus:-$virtual_default_vcpus}
done

# Infra setup
generate_ssh_key
prepare_vms virtual_nodes "${base_image}"
create_networks OPNFV_BRIDGES
create_vms virtual_nodes virtual_nodes_ram virtual_nodes_vcpus OPNFV_BRIDGES
update_pxe_network OPNFV_BRIDGES
start_vms virtual_nodes
check_connection

./salt.sh

# Openstack cluster setup
for state in "${cluster_states[@]}"; do
    notify "STATE: ${state}\n" 2
    # shellcheck disable=SC2086,2029
    ssh ${SSH_OPTS} "ubuntu@${SALT_MASTER}" \
        sudo "/root/fuel/mcp/config/states/${state}"
done

popd > /dev/null

#
# END of main
##############################################################################