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+# OpenFlow Agent plugin

+# ----------------------

+

+# Save trace setting

+MY_XTRACE=$(set +o | grep xtrace)

+set +o xtrace

+

+source $TOP_DIR/lib/neutron_plugins/ovs_base

+source $TOP_DIR/lib/neutron_thirdparty/ryu  # for RYU_DIR, install_ryu, etc

+

+function neutron_plugin_create_nova_conf {

+    _neutron_ovs_base_configure_nova_vif_driver

+}

+

+function neutron_plugin_install_agent_packages {

+    _neutron_ovs_base_install_agent_packages

+

+    # This agent uses ryu to talk with switches

+    install_package $(get_packages "ryu")

+    install_ryu

+    configure_ryu

+}

+

+function neutron_plugin_configure_debug_command {

+    _neutron_ovs_base_configure_debug_command

+}

+

+function neutron_plugin_configure_dhcp_agent {

+    iniset $Q_DHCP_CONF_FILE DEFAULT dhcp_agent_manager neutron.agent.dhcp_agent.DhcpAgentWithStateReport

+}

+

+function neutron_plugin_configure_l3_agent {

+    _neutron_ovs_base_configure_l3_agent

+    iniset $Q_L3_CONF_FILE DEFAULT l3_agent_manager neutron.agent.l3_agent.L3NATAgentWithStateReport

+}

+

+function neutron_plugin_configure_plugin_agent {

+    # Set up integration bridge

+    _neutron_ovs_base_setup_bridge $OVS_BRIDGE

+    _neutron_ovs_base_configure_firewall_driver

+

+    # Check a supported openflow version

+    OF_VERSION=`ovs-ofctl --version | grep "OpenFlow versions" | awk '{print $3}' | cut -d':' -f2`

+    if [ `vercmp_numbers "$OF_VERSION" "0x3"` -lt "0" ]; then

+        die $LINENO "This agent requires OpenFlow 1.3+ capable switch."

+    fi

+

+    # Enable tunnel networks if selected

+    if [[ "$OVS_ENABLE_TUNNELING" = "True" ]]; then

+        # Verify tunnels are supported

+        # REVISIT - also check kernel module support for GRE and patch ports

+        OVS_VERSION=`ovs-vsctl --version | head -n 1 | grep -E -o "[0-9]+\.[0-9]+"`

+        if [ `vercmp_numbers "$OVS_VERSION" "1.4"` -lt "0" ]; then

+            die $LINENO "You are running OVS version $OVS_VERSION. OVS 1.4+ is required for tunneling between multiple hosts."

+        fi

+        iniset /$Q_PLUGIN_CONF_FILE ovs enable_tunneling True

+        iniset /$Q_PLUGIN_CONF_FILE ovs local_ip $HOST_IP

+    fi

+

+    # Setup physical network bridge mappings.  Override

+    # ``OVS_VLAN_RANGES`` and ``OVS_BRIDGE_MAPPINGS`` in ``localrc`` for more

+    # complex physical network configurations.

+    if [[ "$OVS_BRIDGE_MAPPINGS" = "" ]] && [[ "$PHYSICAL_NETWORK" != "" ]] && [[ "$OVS_PHYSICAL_BRIDGE" != "" ]]; then

+        OVS_BRIDGE_MAPPINGS=$PHYSICAL_NETWORK:$OVS_PHYSICAL_BRIDGE

+

+        # Configure bridge manually with physical interface as port for multi-node

+        sudo ovs-vsctl --no-wait -- --may-exist add-br $OVS_PHYSICAL_BRIDGE

+    fi

+    if [[ "$OVS_BRIDGE_MAPPINGS" != "" ]]; then

+        iniset /$Q_PLUGIN_CONF_FILE ovs bridge_mappings $OVS_BRIDGE_MAPPINGS

+    fi

+    AGENT_BINARY="$NEUTRON_BIN_DIR/neutron-ofagent-agent"

+

+    # Define extra "AGENT" configuration options when q-agt is configured by defining

+    # defining the array ``Q_AGENT_EXTRA_AGENT_OPTS``.

+    # For Example: ``Q_AGENT_EXTRA_AGENT_OPTS=(foo=true bar=2)``

+    for I in "${Q_AGENT_EXTRA_AGENT_OPTS[@]}"; do

+        # Replace the first '=' with ' ' for iniset syntax

+        iniset /$Q_PLUGIN_CONF_FILE agent ${I/=/ }

+    done

+}

+

+function neutron_plugin_setup_interface_driver {

+    local conf_file=$1

+    iniset $conf_file DEFAULT interface_driver neutron.agent.linux.interface.OVSInterfaceDriver

+    iniset $conf_file DEFAULT ovs_use_veth True

+}

+

+function neutron_plugin_check_adv_test_requirements {

+    is_service_enabled q-agt && is_service_enabled q-dhcp && return 0

+}

+

+# Restore xtrace

+$MY_XTRACE