openstack/devstack
Code Issues Proposed changes

[OVN] Add support for the Neutron OVN agent service

Browse Source 
The Neutron OVN agent is a service that could run in any node. The
functionality will depend on the extensions configured. This new
agent is meant to be the replacement for the Neutron OVN metadata
agent once the "metadata" extension is implemented in this service
[1].

[1]https://review.opendev.org/c/openstack/neutron/+/898238

Related-Bug: #2017871
Change-Id: I8f82f0047e89aac122a67f59db84f03e1a6bf519
This commit is contained in:
Rodolfo Alonso Hernandez 2023-12-20 23:06:18 +00:00 committed by Rodolfo Alonso
parent a2da805f81
commit 6091df25a3
1 changed files with 50 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

62
lib/neutron_plugins/ovn_agent
View File

@ -91,9 +91,14 @@ OVN_GENEVE_OVERHEAD=${OVN_GENEVE_OVERHEAD:-38}
# http://www.openvswitch.org/support/dist-docs/ovs-appctl.8.txt
OVN_DBS_LOG_LEVEL=${OVN_DBS_LOG_LEVEL:-info}
# OVN metadata agent configuration
OVN_META_CONF=$NEUTRON_CONF_DIR/neutron_ovn_metadata_agent.ini
OVN_META_DATA_HOST=${OVN_META_DATA_HOST:-$(ipv6_unquote $SERVICE_HOST)}
# OVN agent configuration
OVN_AGENT_CONF=$NEUTRON_CONF_DIR/plugins/ml2/ovn_agent.ini
OVN_AGENT_EXTENSIONS=${OVN_AGENT_EXTENSIONS:-}
# If True (default) the node will be considered a gateway node.
ENABLE_CHASSIS_AS_GW=$(trueorfalse True ENABLE_CHASSIS_AS_GW)
OVN_L3_CREATE_PUBLIC_NETWORK=$(trueorfalse True OVN_L3_CREATE_PUBLIC_NETWORK)
@ -132,6 +137,7 @@ OVN_RUNDIR=$OVS_PREFIX/var/run/ovn
NEUTRON_OVN_BIN_DIR=$(get_python_exec_prefix)
NEUTRON_OVN_METADATA_BINARY="neutron-ovn-metadata-agent"
NEUTRON_OVN_AGENT_BINARY="neutron-ovn-agent"
STACK_GROUP="$( id --group --name "$STACK_USER" )"
@ -487,6 +493,8 @@ function configure_ovn_plugin {
if is_service_enabled q-ovn-metadata-agent neutron-ovn-metadata-agent; then
populate_ml2_config /$Q_PLUGIN_CONF_FILE ovn ovn_metadata_enabled=True
elif is_service_enabled q-ovn-agent neutron-ovn-agent && [[ "$OVN_AGENT_EXTENSIONS" =~ 'metadata' ]]; then
populate_ml2_config /$Q_PLUGIN_CONF_FILE ovn ovn_metadata_enabled=True
else
populate_ml2_config /$Q_PLUGIN_CONF_FILE ovn ovn_metadata_enabled=False
fi
@ -508,6 +516,8 @@ function configure_ovn_plugin {
if is_service_enabled n-api-meta ; then
if is_service_enabled q-ovn-metadata-agent neutron-ovn-metadata-agent; then
iniset $NOVA_CONF neutron service_metadata_proxy True
elif is_service_enabled q-ovn-agent neutron-ovn-agent && [[ "$OVN_AGENT_EXTENSIONS" =~ 'metadata' ]]; then
iniset $NOVA_CONF neutron service_metadata_proxy True
fi
fi
}
@ -539,29 +549,42 @@ function configure_ovn {
fi
# Metadata
if is_service_enabled q-ovn-metadata-agent neutron-ovn-metadata-agent && is_service_enabled ovn-controller; then
local sample_file=""
local config_file=""
if is_service_enabled q-ovn-agent neutron-ovn-agent && [[ "$OVN_AGENT_EXTENSIONS" =~ 'metadata' ]] && is_service_enabled ovn-controller; then
sample_file=$NEUTRON_DIR/etc/neutron/plugins/ml2/ovn_agent.ini.sample
config_file=$OVN_AGENT_CONF
elif is_service_enabled q-ovn-metadata-agent neutron-ovn-metadata-agent && is_service_enabled ovn-controller; then
sample_file=$NEUTRON_DIR/etc/neutron_ovn_metadata_agent.ini.sample
config_file=$OVN_META_CONF
fi
if [ -n ${config_file} ]; then
sudo install -d -o $STACK_USER $NEUTRON_CONF_DIR
mkdir -p $NEUTRON_DIR/etc/neutron/plugins/ml2
(cd $NEUTRON_DIR && exec ./tools/generate_config_file_samples.sh)
cp $NEUTRON_DIR/etc/neutron_ovn_metadata_agent.ini.sample $OVN_META_CONF
configure_root_helper_options $OVN_META_CONF
cp $sample_file $config_file
configure_root_helper_options $config_file
iniset $OVN_META_CONF DEFAULT debug $ENABLE_DEBUG_LOG_LEVEL
iniset $OVN_META_CONF DEFAULT nova_metadata_host $OVN_META_DATA_HOST
iniset $OVN_META_CONF DEFAULT metadata_workers $API_WORKERS
iniset $OVN_META_CONF DEFAULT state_path $DATA_DIR/neutron
iniset $OVN_META_CONF ovs ovsdb_connection tcp:$OVSDB_SERVER_LOCAL_HOST:6640
iniset $OVN_META_CONF ovn ovn_sb_connection $OVN_SB_REMOTE
iniset $config_file DEFAULT debug $ENABLE_DEBUG_LOG_LEVEL
iniset $config_file DEFAULT nova_metadata_host $OVN_META_DATA_HOST
iniset $config_file DEFAULT metadata_workers $API_WORKERS
iniset $config_file DEFAULT state_path $DATA_DIR/neutron
iniset $config_file ovs ovsdb_connection tcp:$OVSDB_SERVER_LOCAL_HOST:6640
iniset $config_file ovn ovn_sb_connection $OVN_SB_REMOTE
if is_service_enabled tls-proxy; then
iniset $OVN_META_CONF ovn \
iniset $config_file ovn \
ovn_sb_ca_cert $INT_CA_DIR/ca-chain.pem
iniset $OVN_META_CONF ovn \
iniset $config_file ovn \
ovn_sb_certificate $INT_CA_DIR/$DEVSTACK_CERT_NAME.crt
iniset $OVN_META_CONF ovn \
iniset $config_file ovn \
ovn_sb_private_key $INT_CA_DIR/private/$DEVSTACK_CERT_NAME.key
fi
if [[ $config_file == $OVN_AGENT_CONF ]]; then
iniset $config_file agent extensions $OVN_AGENT_EXTENSIONS
iniset $config_file ovn ovn_nb_connection $OVN_NB_REMOTE
fi
fi
}
@ -684,6 +707,9 @@ function _start_ovn_services {
if is_service_enabled q-ovn-metadata-agent neutron-ovn-metadata-agent ; then
_start_process "devstack@q-ovn-metadata-agent.service"
fi
if is_service_enabled q-ovn-agent neutron-ovn-agent ; then
_start_process "devstack@q-ovn-agent.service"
fi
}
# start_ovn() - Start running processes, including screen
@ -750,6 +776,12 @@ function start_ovn {
setup_logging $OVN_META_CONF
fi
if is_service_enabled q-ovn-agent neutron-ovn-agent; then
run_process q-ovn-agent "$NEUTRON_OVN_BIN_DIR/$NEUTRON_OVN_AGENT_BINARY --config-file $OVN_AGENT_CONF"
# Format logging
setup_logging $OVN_AGENT_CONF
fi
_start_ovn_services
}
@ -774,6 +806,12 @@ function stop_ovn {
sudo pkill -9 -f "[h]aproxy" || :
_stop_process "devstack@q-ovn-metadata-agent.service"
fi
if is_service_enabled q-ovn-agent neutron-ovn-agent; then
# pkill takes care not to kill itself, but it may kill its parent
# sudo unless we use the "ps | grep [f]oo" trick
sudo pkill -9 -f "[h]aproxy" || :
_stop_process "devstack@q-ovn-agent.service"
fi
if is_service_enabled ovn-controller-vtep ; then
_stop_process "$OVN_CONTROLLER_VTEP_SERVICE"
fi