aodh/devstack/plugin.sh

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# Install and start **Aodh** service in devstack
#
# To enable Aodh in devstack add an entry to local.conf that
# looks like
#
# [[local|localrc]]
# enable_plugin aodh https://opendev.org/openstack/aodh
#
# By default all aodh services are started (see
# devstack/settings).
#
# AODH_BACKEND: Database backend (e.g. 'mysql')
# AODH_COORDINATION_URL: URL for group membership service provided by tooz.
# Support potential entry-points console scripts in VENV or not
if [[ ${USE_VENV} = True ]]; then
PROJECT_VENV["aodh"]=${AODH_DIR}.venv
AODH_BIN_DIR=${PROJECT_VENV["aodh"]}/bin
else
AODH_BIN_DIR=$(get_python_exec_prefix)
fi
# Test if any Aodh services are enabled
# is_aodh_enabled
function is_aodh_enabled {
[[ ,${ENABLED_SERVICES} =~ ,"aodh-" ]] && return 0
return 1
}
function aodh_service_url {
echo "$AODH_SERVICE_PROTOCOL://$AODH_SERVICE_HOST/alarming"
}
# _install_redis() - Install the redis server and python lib.
function _aodh_install_redis {
if is_ubuntu; then
install_package redis-server
restart_service redis-server
else
# This will fail (correctly) where a redis package is unavailable
install_package redis
restart_service redis
fi
pip_install_gr redis
}
# Install required services for coordination
function _aodh_prepare_coordination {
if echo $AODH_COORDINATION_URL | grep -q '^memcached:'; then
install_package memcached
elif echo $AODH_COORDINATION_URL | grep -q '^redis:'; then
_aodh_install_redis
fi
}
# Create aodh related accounts in Keystone
function _aodh_create_accounts {
if is_service_enabled aodh-api; then
create_service_user "aodh" "admin"
get_or_create_service "aodh" "alarming" "OpenStack Alarming Service"
get_or_create_endpoint 'alarming' "$REGION_NAME" "$(aodh_service_url)"
fi
}
# Activities to do before aodh has been installed.
function preinstall_aodh {
# Needed to build psycopg2
if is_ubuntu; then
install_package libpq-dev
else
install_package postgresql-devel
fi
}
# cleanup_aodh() - Remove residual data files, anything left over
# from previous runs that a clean run would need to clean up
function cleanup_aodh {
remove_uwsgi_config "$AODH_UWSGI_CONF" "aodh"
}
# Set configuration for storage backend.
function _aodh_configure_storage_backend {
if [ "$AODH_BACKEND" = 'mysql' ] || [ "$AODH_BACKEND" = 'postgresql' ] ; then
iniset $AODH_CONF database connection $(database_connection_url aodh)
else
die $LINENO "Unable to configure unknown AODH_BACKEND $AODH_BACKEND"
fi
}
# Configure Aodh
function configure_aodh {
iniset_rpc_backend aodh $AODH_CONF
iniset $AODH_CONF oslo_messaging_notifications topics "$AODH_NOTIFICATION_TOPICS"
iniset $AODH_CONF DEFAULT debug "$ENABLE_DEBUG_LOG_LEVEL"
if [[ -n "$AODH_COORDINATION_URL" ]]; then
iniset $AODH_CONF coordination backend_url $AODH_COORDINATION_URL
fi
# Set up logging
iniset $AODH_CONF DEFAULT use_syslog $SYSLOG
# Format logging
setup_logging $AODH_CONF DEFAULT
# The alarm evaluator needs these options to call gnocchi/ceilometer APIs
iniset $AODH_CONF service_credentials auth_type password
iniset $AODH_CONF service_credentials username aodh
iniset $AODH_CONF service_credentials user_domain_id default
iniset $AODH_CONF service_credentials project_domain_id default
iniset $AODH_CONF service_credentials password $SERVICE_PASSWORD
iniset $AODH_CONF service_credentials project_name $SERVICE_PROJECT_NAME
iniset $AODH_CONF service_credentials region_name $REGION_NAME
iniset $AODH_CONF service_credentials auth_url $KEYSTONE_SERVICE_URI
configure_keystone_authtoken_middleware $AODH_CONF aodh
# Configured storage
_aodh_configure_storage_backend
# NOTE: This must come after database configuration as those can
# call cleanup_aodh which will wipe the WSGI config.
# iniset creates these files when it's called if they don't exist.
write_uwsgi_config "$AODH_UWSGI_CONF" "$AODH_UWSGI" "/alarming" "" "aodh"
}
# init_aodh() - Initialize etc.
function init_aodh {
# Get aodh keystone settings in place
_aodh_create_accounts
if is_service_enabled mysql postgresql; then
if [ "$AODH_BACKEND" = 'mysql' ] || [ "$AODH_BACKEND" = 'postgresql' ] ; then
recreate_database aodh
$AODH_BIN_DIR/aodh-dbsync
fi
fi
}
# Install Aodh.
# The storage and coordination backends are installed here because the
# virtualenv context is active at this point and python drivers need to be
# installed. The context is not active during preinstall (when it would
# otherwise makes sense to do the backend services).
function install_aodh {
_aodh_prepare_coordination
install_aodhclient
setup_develop $AODH_DIR $AODH_BACKEND
sudo install -d -o $STACK_USER -m 755 $AODH_CONF_DIR
pip_install uwsgi
}
# install_aodhclient() - Collect source and prepare
function install_aodhclient {
if use_library_from_git "python-aodhclient"; then
git_clone_by_name "python-aodhclient"
setup_dev_lib "python-aodhclient"
else
pip_install_gr aodhclient
fi
aodh complete | sudo tee /etc/bash_completion.d/aodh.bash_completion > /dev/null
}
# start_aodh() - Start running processes, including screen
function start_aodh {
run_process aodh-api "$AODH_BIN_DIR/uwsgi --ini $AODH_UWSGI_CONF"
# Only die on API if it was actually intended to be turned on
if is_service_enabled aodh-api; then
echo "Waiting for aodh-api to start..."
if ! wait_for_service $SERVICE_TIMEOUT $(aodh_service_url)/v2/; then
die $LINENO "aodh-api did not start"
fi
fi
run_process aodh-notifier "$AODH_BIN_DIR/aodh-notifier --config-file $AODH_CONF"
run_process aodh-evaluator "$AODH_BIN_DIR/aodh-evaluator --config-file $AODH_CONF"
run_process aodh-listener "$AODH_BIN_DIR/aodh-listener --config-file $AODH_CONF"
}
# configure_tempest_for_aodh()
# NOTE (gmann): Configure all the Tempest setting for Aodh service in
# this function.
function configure_tempest_for_aodh {
if is_service_enabled tempest; then
iniset $TEMPEST_CONFIG service_available aodh True
fi
}
# stop_aodh() - Stop running processes
function stop_aodh {
local serv
# Kill the aodh screen windows
for serv in aodh-api aodh-notifier aodh-evaluator aodh-listener; do
stop_process $serv
done
}
# This is the main for plugin.sh
if is_service_enabled aodh; then
if [[ "$1" == "stack" && "$2" == "pre-install" ]]; then
# Set up other services
echo_summary "Configuring system services for Aodh"
preinstall_aodh
elif [[ "$1" == "stack" && "$2" == "install" ]]; then
echo_summary "Installing Aodh"
# Use stack_install_service here to account for virtualenv
stack_install_service aodh
elif [[ "$1" == "stack" && "$2" == "post-config" ]]; then
echo_summary "Configuring Aodh"
configure_aodh
elif [[ "$1" == "stack" && "$2" == "extra" ]]; then
echo_summary "Initializing Aodh"
# Tidy base for aodh
init_aodh
# Start the services
start_aodh
elif [[ "$1" == "stack" && "$2" == "test-config" ]]; then
echo_summary "Configuring Tempest for Aodh"
configure_tempest_for_aodh
fi
if [[ "$1" == "unstack" ]]; then
echo_summary "Shutting Down Aodh"
stop_aodh
fi
if [[ "$1" == "clean" ]]; then
echo_summary "Cleaning Aodh"
cleanup_aodh
fi
fi