#!/usr/bin/env bash
# Copyright 2014, Rackspace US, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

## Shell Opts ----------------------------------------------------------------
set -e -u -x

## Variables -----------------------------------------------------------------

# Successerator: How many times do we try before failing
export MAX_RETRIES=${MAX_RETRIES:-"2"}

# tempest and testr options, default is to run tempest in serial
export TESTR_OPTS=${TESTR_OPTS:-''}

# Disable the python output buffering so that jenkins gets the output properly
export PYTHONUNBUFFERED=1

# Extra options to pass to the AIO bootstrap process
export BOOTSTRAP_OPTS=${BOOTSTRAP_OPTS:-''}

# Ensure the terminal type is set
export TERM=linux

# This variable is being added to ensure the gate job executes an exit
#  function at the end of the run.
export OSA_GATE_JOB=true

# Set the role fetch mode to git-clone to avoid interactions
# with the Ansible galaxy API.
export ANSIBLE_ROLE_FETCH_MODE="git-clone"

# Set the scenario to execute based on the first CLI parameter
export SCENARIO=${1:-"aio"}

# Set the action base on the second CLI parameter
# Actions available: [ 'deploy', 'upgrade' ]
export ACTION=${2:-"deploy"}

# Set the source branch for upgrade tests
# Be sure to change this whenever a new stable branch
# is created. The checkout must always be N-1.
export UPGRADE_SOURCE_BRANCH=${UPGRADE_SOURCE_BRANCH:-'stable/newton'}

## Functions -----------------------------------------------------------------
info_block "Checking for required libraries." 2> /dev/null || source "$(dirname "${0}")/scripts-library.sh"

## Main ----------------------------------------------------------------------
# Set gate job exit traps, this is run regardless of exit state when the job finishes.
trap gate_job_exit_tasks EXIT

# Log some data about the instance and the rest of the system
log_instance_info

# If the action is to upgrade, then store the current SHA,
# checkout the source SHA before executing the greenfield
# deployment.
if [[ "${ACTION}" == "upgrade" ]]; then
    # Store the target SHA/branch
    export UPGRADE_TARGET_BRANCH=$(git rev-parse HEAD)

    # Now checkout the source SHA/branch
    git checkout ${UPGRADE_SOURCE_BRANCH}
fi

# Get minimum disk size
DATA_DISK_MIN_SIZE="$((1024**3 * $(awk '/bootstrap_host_data_disk_min_size/{print $2}' "$(dirname "${0}")/../tests/roles/bootstrap-host/defaults/main.yml") ))"

# Determine the largest secondary disk device that meets the minimum size
DATA_DISK_DEVICE=$(lsblk -brndo NAME,TYPE,RO,SIZE | awk '/d[b-z]+ disk 0/{ if ($4>m && $4>='$DATA_DISK_MIN_SIZE'){m=$4; d=$1}}; END{print d}')

# Only set the secondary disk device option if there is one
if [ -n "${DATA_DISK_DEVICE}" ]; then
  export BOOTSTRAP_OPTS="${BOOTSTRAP_OPTS} bootstrap_host_data_disk_device=${DATA_DISK_DEVICE}"
fi

# Bootstrap Ansible
source "$(dirname "${0}")/bootstrap-ansible.sh"

# Log some data about the instance and the rest of the system
log_instance_info

# Flush all the iptables rules set by openstack-infra
iptables -F
iptables -X
iptables -t nat -F
iptables -t nat -X
iptables -t mangle -F
iptables -t mangle -X
iptables -P INPUT ACCEPT
iptables -P FORWARD ACCEPT
iptables -P OUTPUT ACCEPT

# Bootstrap an AIO
pushd "$(dirname "${0}")/../tests"
  if [ -z "${BOOTSTRAP_OPTS}" ]; then
    ansible-playbook bootstrap-aio.yml \
                     -i test-inventory.ini \
                     ${ANSIBLE_PARAMETERS}
  else
    ansible-playbook bootstrap-aio.yml \
                     -i test-inventory.ini \
                     -e "${BOOTSTRAP_OPTS}" \
                     ${ANSIBLE_PARAMETERS}
  fi
popd

# Implement the log directory
mkdir -p /openstack/log

pushd "$(dirname "${0}")/../playbooks"
  # Disable Ansible color output
  export ANSIBLE_NOCOLOR=1

  # Create ansible logging directory and add in a log file export
  mkdir -p /openstack/log/ansible-logging
  export ANSIBLE_LOG_PATH="/openstack/log/ansible-logging/ansible.log"
popd

# Log some data about the instance and the rest of the system
log_instance_info

# Execute the Playbooks
bash "$(dirname "${0}")/run-playbooks.sh"

# Log some data about the instance and the rest of the system
log_instance_info

# If the action is to upgrade, then checkout the original SHA for
# the checkout, and execute the upgrade.
if [[ "${ACTION}" == "upgrade" ]]; then

    # Checkout the original HEAD we started with
    git checkout ${UPGRADE_TARGET_BRANCH}

    # There is a protection in the run-upgrade script
    # to prevent people doing anything silly. We need
    # to bypass that for an automated test.
    export I_REALLY_KNOW_WHAT_I_AM_DOING=true

    # Unset environment variables used by the bootstrap-ansible
    # script to allow newer versions of Ansible and global
    # requirements to be installed.
    unset ANSIBLE_PACKAGE
    unset UPPER_CONSTRAINTS_FILE

    # To execute the upgrade script we need to provide
    # an affirmative response to the warning that the
    # upgrade is irreversable.
    echo 'YES' | bash "$(dirname "${0}")/run-upgrade.sh"

fi

exit_success