# lib/heat
# Install and start **Heat** service

# To enable, add the following to localrc
#
#   ENABLED_SERVICES+=,heat,h-api,h-api-cfn,h-api-cw,h-eng

# Dependencies:
#
# - functions

# stack.sh
# ---------
# - install_heatclient
# - install_heat
# - configure_heatclient
# - configure_heat
# - init_heat
# - start_heat
# - stop_heat
# - cleanup_heat

# Save trace setting
XTRACE=$(set +o | grep xtrace)
set +o xtrace


# Defaults
# --------

# set up default directories
HEAT_DIR=$DEST/heat
HEATCLIENT_DIR=$DEST/python-heatclient
HEAT_AUTH_CACHE_DIR=${HEAT_AUTH_CACHE_DIR:-/var/cache/heat}
HEAT_STANDALONE=`trueorfalse False $HEAT_STANDALONE`
HEAT_CONF_DIR=/etc/heat
HEAT_CONF=$HEAT_CONF_DIR/heat.conf
HEAT_ENV_DIR=$HEAT_CONF_DIR/environment.d
HEAT_TEMPLATES_DIR=$HEAT_CONF_DIR/templates

# Functions
# ---------

# cleanup_heat() - Remove residual data files, anything left over from previous
# runs that a clean run would need to clean up
function cleanup_heat() {
    sudo rm -rf $HEAT_AUTH_CACHE_DIR
    sudo rm -rf $HEAT_ENV_DIR
    sudo rm -rf $HEAT_TEMPLATES_DIR
}

# configure_heat() - Set config files, create data dirs, etc
function configure_heat() {
    setup_develop $HEAT_DIR

    if [[ ! -d $HEAT_CONF_DIR ]]; then
        sudo mkdir -p $HEAT_CONF_DIR
    fi
    sudo chown $STACK_USER $HEAT_CONF_DIR
    # remove old config files
    rm -f $HEAT_CONF_DIR/heat-*.conf

    HEAT_API_CFN_HOST=${HEAT_API_CFN_HOST:-$SERVICE_HOST}
    HEAT_API_CFN_PORT=${HEAT_API_CFN_PORT:-8000}
    HEAT_ENGINE_HOST=${HEAT_ENGINE_HOST:-$SERVICE_HOST}
    HEAT_ENGINE_PORT=${HEAT_ENGINE_PORT:-8001}
    HEAT_API_CW_HOST=${HEAT_API_CW_HOST:-$SERVICE_HOST}
    HEAT_API_CW_PORT=${HEAT_API_CW_PORT:-8003}
    HEAT_API_HOST=${HEAT_API_HOST:-$SERVICE_HOST}
    HEAT_API_PORT=${HEAT_API_PORT:-8004}
    HEAT_API_PASTE_FILE=$HEAT_CONF_DIR/api-paste.ini
    HEAT_POLICY_FILE=$HEAT_CONF_DIR/policy.json

    cp $HEAT_DIR/etc/heat/api-paste.ini $HEAT_API_PASTE_FILE
    cp $HEAT_DIR/etc/heat/policy.json $HEAT_POLICY_FILE
    cp $HEAT_DIR/etc/heat/heat.conf.sample $HEAT_CONF

    # common options
    iniset_rpc_backend heat $HEAT_CONF DEFAULT
    iniset $HEAT_CONF DEFAULT heat_metadata_server_url http://$HEAT_API_CFN_HOST:$HEAT_API_CFN_PORT
    iniset $HEAT_CONF DEFAULT heat_waitcondition_server_url http://$HEAT_API_CFN_HOST:$HEAT_API_CFN_PORT/v1/waitcondition
    iniset $HEAT_CONF DEFAULT heat_watch_server_url http://$HEAT_API_CW_HOST:$HEAT_API_CW_PORT
    iniset $HEAT_CONF database connection `database_connection_url heat`
    iniset $HEAT_CONF DEFAULT auth_encryption_key `hexdump -n 16 -v -e '/1 "%02x"' /dev/random`

    # logging
    iniset $HEAT_CONF DEFAULT debug $ENABLE_DEBUG_LOG_LEVEL
    iniset $HEAT_CONF DEFAULT use_syslog $SYSLOG
    if [ "$LOG_COLOR" == "True" ] && [ "$SYSLOG" == "False" ]; then
        # Add color to logging output
        setup_colorized_logging $HEAT_CONF DEFAULT tenant user
    fi

    # keystone authtoken
    iniset $HEAT_CONF keystone_authtoken auth_host $KEYSTONE_AUTH_HOST
    iniset $HEAT_CONF keystone_authtoken auth_port $KEYSTONE_AUTH_PORT
    iniset $HEAT_CONF keystone_authtoken auth_protocol $KEYSTONE_AUTH_PROTOCOL
    configure_API_version $HEAT_CONF $IDENTITY_API_VERSION
    iniset $HEAT_CONF keystone_authtoken cafile $KEYSTONE_SSL_CA
    iniset $HEAT_CONF keystone_authtoken admin_tenant_name $SERVICE_TENANT_NAME
    iniset $HEAT_CONF keystone_authtoken admin_user heat
    iniset $HEAT_CONF keystone_authtoken admin_password $SERVICE_PASSWORD
    iniset $HEAT_CONF keystone_authtoken signing_dir $HEAT_AUTH_CACHE_DIR

    # ec2authtoken
    iniset $HEAT_CONF ec2authtoken auth_uri $KEYSTONE_SERVICE_PROTOCOL://$KEYSTONE_SERVICE_HOST:$KEYSTONE_SERVICE_PORT/v2.0
    iniset $HEAT_CONF ec2authtoken keystone_ec2_uri $KEYSTONE_SERVICE_PROTOCOL://$KEYSTONE_SERVICE_HOST:$KEYSTONE_SERVICE_PORT/v2.0/ec2tokens

    # paste_deploy
    [[ "$HEAT_STANDALONE" = "True" ]] && iniset $HEAT_CONF paste_deploy flavor standalone

    # OpenStack API
    iniset $HEAT_CONF heat_api bind_host $HEAT_API_HOST
    iniset $HEAT_CONF heat_api bind_port $HEAT_API_PORT

    # Cloudformation API
    iniset $HEAT_CONF heat_api_cfn bind_host $HEAT_API_CFN_HOST
    iniset $HEAT_CONF heat_api_cfn bind_port $HEAT_API_CFN_PORT

    # Cloudwatch API
    iniset $HEAT_CONF heat_api_cloudwatch bind_host $HEAT_API_CW_HOST
    iniset $HEAT_CONF heat_api_cloudwatch bind_port $HEAT_API_CW_PORT

    # heat environment
    sudo mkdir -p $HEAT_ENV_DIR
    sudo chown $STACK_USER $HEAT_ENV_DIR
    # copy the default environment
    cp $HEAT_DIR/etc/heat/environment.d/* $HEAT_ENV_DIR/

    # heat template resources.
    sudo mkdir -p $HEAT_TEMPLATES_DIR
    sudo chown $STACK_USER $HEAT_TEMPLATES_DIR
    # copy the default templates
    cp $HEAT_DIR/etc/heat/templates/* $HEAT_TEMPLATES_DIR/

}

# init_heat() - Initialize database
function init_heat() {

    # (re)create heat database
    recreate_database heat utf8

    $HEAT_DIR/bin/heat-manage db_sync
    create_heat_cache_dir
}

# create_heat_cache_dir() - Part of the init_heat() process
function create_heat_cache_dir() {
    # Create cache dirs
    sudo mkdir -p $HEAT_AUTH_CACHE_DIR
    sudo chown $STACK_USER $HEAT_AUTH_CACHE_DIR
}

# install_heatclient() - Collect source and prepare
function install_heatclient() {
    git_clone $HEATCLIENT_REPO $HEATCLIENT_DIR $HEATCLIENT_BRANCH
    setup_develop $HEATCLIENT_DIR
}

# install_heat() - Collect source and prepare
function install_heat() {
    git_clone $HEAT_REPO $HEAT_DIR $HEAT_BRANCH
}

# start_heat() - Start running processes, including screen
function start_heat() {
    screen_it h-eng "cd $HEAT_DIR; bin/heat-engine --config-file=$HEAT_CONF"
    screen_it h-api "cd $HEAT_DIR; bin/heat-api --config-file=$HEAT_CONF"
    screen_it h-api-cfn "cd $HEAT_DIR; bin/heat-api-cfn --config-file=$HEAT_CONF"
    screen_it h-api-cw "cd $HEAT_DIR; bin/heat-api-cloudwatch --config-file=$HEAT_CONF"
}

# stop_heat() - Stop running processes
function stop_heat() {
    # Kill the screen windows
    for serv in h-eng h-api h-api-cfn h-api-cw; do
        screen_stop $serv
    done
}

function disk_image_create {
    local elements_path=$1
    local elements=$2
    local arch=$3
    local output=$TOP_DIR/files/$4
    if [[ -f "$output.qcow2" ]];
    then
        echo "Image file already exists: $output_file"
    else
        ELEMENTS_PATH=$elements_path disk-image-create \
            $elements -a $arch -o $output
    fi
    # upload with fake URL so that image in $TOP_DIR/files is used
    upload_image "http://localhost/$output.qcow2" $TOKEN
}

# Restore xtrace
$XTRACE

# Tell emacs to use shell-script-mode
## Local variables:
## mode: shell-script
## End: