deb-mistral/contrib/devstack/lib/mistral

# lib/mistral

# Dependencies:
# ``functions`` file
# ``DEST``, ``DATA_DIR``, ``STACK_USER`` must be defined

# ``stack.sh`` calls the entry points in this order:
#
# install_mistral
# configure_mistral
# start_mistral
# stop_mistral


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


# Defaults
# --------

# Set up default repos
MISTRAL_REPO=${MISTRAL_REPO:-${GIT_BASE}/stackforge/mistral.git}
MISTRAL_BRANCH=${MISTRAL_BRANCH:-master}

MISTRAL_PYTHONCLIENT_REPO=${MISTRAL_PYTHONCLIENT_REPO:-${GIT_BASE}/stackforge/python-mistralclient.git}
MISTRAL_PYTHONCLIENT_BRANCH=${MISTRAL_PYTHONCLIENT_BRANCH:-$MISTRAL_BRANCH}
MISTRAL_PYTHONCLIENT_DIR=$DEST/python-mistralclient

# Set up default directories
MISTRAL_DIR=$DEST/mistral
MISTRAL_CONF_DIR=${MISTRAL_CONF_DIR:-/etc/mistral}
MISTRAL_CONF_FILE=${MISTRAL_CONF_DIR}/mistral.conf
MISTRAL_DEBUG=${MISTRAL_DEBUG:-True}

MISTRAL_SERVICE_HOST=${MISTRAL_SERVICE_HOST:-$SERVICE_HOST}
MISTRAL_SERVICE_PORT=${MISTRAL_SERVICE_PORT:-8989}
MISTRAL_SERVICE_PROTOCOL=${MISTRAL_SERVICE_PROTOCOL:-$SERVICE_PROTOCOL}

MISTRAL_ADMIN_USER=${MISTRAL_ADMIN_USER:-mistral}

# Support entry points installation of console scripts
if [[ -d $MISTRAL_DIR/bin ]]; then
    MISTRAL_BIN_DIR=$MISTRAL_DIR/bin
else
    MISTRAL_BIN_DIR=$(get_python_exec_prefix)
fi

# create_mistral_accounts - Set up common required mistral accounts
#
# Tenant      User       Roles
# ------------------------------
# service     mistral     admin
function create_mistral_accounts {
    if ! is_service_enabled key; then
        return
    fi

    SERVICE_TENANT=$(openstack project list | awk "/ $SERVICE_TENANT_NAME / { print \$2 }")
    ADMIN_ROLE=$(openstack role list | awk "/ admin / { print \$2 }")

    MISTRAL_USER=$(openstack user create \
        $MISTRAL_ADMIN_USER \
        --password "$SERVICE_PASSWORD" \
        --project $SERVICE_TENANT \
        --email mistral@example.com \
        | grep " id " | get_field 2)

    openstack role add \
        $ADMIN_ROLE \
        --project $SERVICE_TENANT \
        --user $MISTRAL_USER

    if [[ "$KEYSTONE_CATALOG_BACKEND" = 'sql' ]]; then
        MISTRAL_SERVICE=$(openstack service create \
            mistral \
            --type=workflow \
            --description="Workflow Service" \
            | grep " id " | get_field 2)
        openstack endpoint create \
            $MISTRAL_SERVICE \
            --region RegionOne \
            --publicurl "$MISTRAL_SERVICE_PROTOCOL://$MISTRAL_SERVICE_HOST:$MISTRAL_SERVICE_PORT/v1" \
            --adminurl "$MISTRAL_SERVICE_PROTOCOL://$MISTRAL_SERVICE_HOST:$MISTRAL_SERVICE_PORT/v1" \
            --internalurl "$MISTRAL_SERVICE_PROTOCOL://$MISTRAL_SERVICE_HOST:$MISTRAL_SERVICE_PORT/v1"

        MISTRAL_SERVICE_V2=$(openstack service create \
            mistral \
            --type=workflowv2 \
            --description="Workflow Service v2" \
            | grep " id " | get_field 2)

        openstack endpoint create \
            $MISTRAL_SERVICE_V2 \
            --region RegionOne \
            --publicurl "$MISTRAL_SERVICE_PROTOCOL://$MISTRAL_SERVICE_HOST:$MISTRAL_SERVICE_PORT/v2" \
            --adminurl "$MISTRAL_SERVICE_PROTOCOL://$MISTRAL_SERVICE_HOST:$MISTRAL_SERVICE_PORT/v2" \
            --internalurl "$MISTRAL_SERVICE_PROTOCOL://$MISTRAL_SERVICE_HOST:$MISTRAL_SERVICE_PORT/v2"

    fi
}


function mkdir_chown_stack {
    if [[ ! -d "$1" ]]; then
        sudo mkdir -p "$1"
    fi
    sudo chown $STACK_USER "$1"
}

# Entry points
# ------------

# configure_mistral - Set config files, create data dirs, etc
function configure_mistral {
    mkdir_chown_stack "$MISTRAL_CONF_DIR"

    # Copy over Mistral configuration file and configure common parameters.
    cp $MISTRAL_DIR/etc/mistral.conf.sample $MISTRAL_CONF_FILE
    iniset $MISTRAL_CONF_FILE DEFAULT debug $MISTRAL_DEBUG

    # Run all Mistral processes as a single process
    iniset $MISTRAL_CONF_FILE DEFAULT server all
    iniset $MISTRAL_CONF_FILE DEFAULT rpc_backend fake

    # Mistral Configuration
    #-------------------------

    # Setup keystone_authtoken section
    iniset $MISTRAL_CONF_FILE keystone_authtoken auth_host $KEYSTONE_AUTH_HOST
    iniset $MISTRAL_CONF_FILE keystone_authtoken auth_port $KEYSTONE_AUTH_PORT
    iniset $MISTRAL_CONF_FILE keystone_authtoken auth_protocol $KEYSTONE_AUTH_PROTOCOL
    iniset $MISTRAL_CONF_FILE keystone_authtoken admin_tenant_name $SERVICE_TENANT_NAME
    iniset $MISTRAL_CONF_FILE keystone_authtoken admin_user $MISTRAL_ADMIN_USER
    iniset $MISTRAL_CONF_FILE keystone_authtoken admin_password $SERVICE_PASSWORD

    # Setup RabbitMQ credentials
    iniset $MISTRAL_CONF_FILE DEFAULT rabbit_password $RABBIT_PASSWORD

    # Configure the database.
    iniset $MISTRAL_CONF_FILE database connection `database_connection_url mistral`
    iniset $MISTRAL_CONF_FILE database max_overflow -1
    iniset $MISTRAL_CONF_FILE database max_pool_size 1000

    # Configure keystone auth url
    iniset $MISTRAL_CONF_FILE keystone_authtoken auth_uri "http://${KEYSTONE_AUTH_HOST}:5000/v3"
}


# init_mistral - Initialize the database
function init_mistral {
    # (re)create Mistral database
    recreate_database mistral utf8
    python $MISTRAL_DIR/tools/sync_db.py --config-file $MISTRAL_CONF_FILE
}


# install_mistral - Collect source and prepare
function install_mistral {
    install_mistral_pythonclient

    git_clone $MISTRAL_REPO $MISTRAL_DIR $MISTRAL_BRANCH

    # setup_package function is used because Mistral requirements
    # don't match with global-requirement.txt
    # both functions (setup_develop and setup_package) are defined at:
    # http://git.openstack.org/cgit/openstack-dev/devstack/tree/functions-common
    setup_package $MISTRAL_DIR -e
}

function install_mistral_pythonclient {
    git_clone $MISTRAL_PYTHONCLIENT_REPO $MISTRAL_PYTHONCLIENT_DIR $MISTRAL_PYTHONCLIENT_BRANCH
    setup_package $MISTRAL_PYTHONCLIENT_DIR -e
}


# start_mistral - Start running processes, including screen
function start_mistral {
    screen_it mistral "cd $MISTRAL_DIR && $MISTRAL_BIN_DIR/mistral-server --config-file $MISTRAL_CONF_DIR/mistral.conf"
}


# stop_mistral - Stop running processes
function stop_mistral {
    # Kill the Mistral screen windows
    screen -S $SCREEN_NAME -p mistral -X kill
}


# Restore xtrace
$XTRACE

# Local variables:
# mode: shell-script
# End: