17fc2d9b47
Previously, network namespaces would not work correctly when restarting or stop/rm/start the neutron-agents container. This is because network namespaces created within the container are associated to the container's pid: /pid/$CONTAINER_PID/ns/net. With this patch, when a container starts or restarts, the l3/dhcp agent start scripts will remove any existing qrouter/qdhcp network namespaces before starting the agents. The agents will recreate the necessary network namespaces since they are stored in the db. Closes-Bug: 1444219 Change-Id: Ia86729766fe8c2fc145b3a02d519746b149a73bb
87 lines
2.4 KiB
Bash
Executable File
87 lines
2.4 KiB
Bash
Executable File
#!/bin/bash
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set -e
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. /opt/kolla/config-neutron.sh
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. /opt/kolla/config-sudoers.sh
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: ${DHCP_DRIVER:=neutron.agent.linux.dhcp.Dnsmasq}
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: ${USE_NAMESPACES:=true}
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: ${DELETE_NAMESPACES:=true}
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: ${DNSMASQ_CONFIG_FILE:=/etc/neutron/dnsmasq-neutron.conf}
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: ${ROOT_HELPER:=sudo neutron-rootwrap /etc/neutron/rootwrap.conf}
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check_required_vars VERBOSE_LOGGING DEBUG_LOGGING MECHANISM_DRIVERS \
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DHCP_DRIVER USE_NAMESPACES DELETE_NAMESPACES \
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NEUTRON_LOG_DIR DNSMASQ_CONFIG_FILE \
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cfg=/etc/neutron/dhcp_agent.ini
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neutron_conf=/etc/neutron/neutron.conf
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# Workaround bug in dhclient in cirros images which does not correctly
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# handle setting checksums of packets when using hardware with checksum
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# offloading. See:
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# https://www.rdoproject.org/forum/discussion/567/packstack-allinone-grizzly-cirros-image-cannot-get-a-dhcp-address-when-a-centos-image-can/p1
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/usr/sbin/iptables -A POSTROUTING -t mangle -p udp --dport bootpc \
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-j CHECKSUM --checksum-fill
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if [[ ${MECHANISM_DRIVERS} =~ linuxbridge ]]; then
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interface_driver="neutron.agent.linux.interface.BridgeInterfaceDriver"
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elif [[ ${MECHANISM_DRIVERS} == "openvswitch" ]]; then
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interface_driver="neutron.agent.linux.interface.OVSInterfaceDriver"
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fi
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# Logging
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crudini --set $neutron_conf \
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DEFAULT \
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log_file \
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"${NEUTRON_DHCP_AGENT_LOG_FILE}"
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# Configure dhcp_agent.ini
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crudini --set $cfg \
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DEFAULT \
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verbose \
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"${VERBOSE_LOGGING}"
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crudini --set $cfg \
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DEFAULT \
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debug \
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"${DEBUG_LOGGING}"
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crudini --set $cfg \
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DEFAULT \
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interface_driver \
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"$interface_driver"
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crudini --set $cfg \
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DEFAULT \
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dhcp_driver \
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"${DHCP_DRIVER}"
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crudini --set $cfg \
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DEFAULT \
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use_namespaces \
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"${USE_NAMESPACES}"
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crudini --set $cfg \
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DEFAULT \
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delete_namespaces \
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"${DELETE_NAMESPACES}"
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crudini --set $cfg \
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DEFAULT \
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dnsmasq_config_file \
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"${DNSMASQ_CONFIG_FILE}"
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crudini --set $cfg \
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DEFAULT \
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root_helper \
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"${ROOT_HELPER}"
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cat > ${DNSMASQ_CONFIG_FILE} <<EOF
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dhcp-option-force=26,1450
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log-facility=${NEUTRON_LOG_DIR}/neutron-dnsmasq.log
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EOF
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# Remove any existing qdhcp namespaces
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ip netns list | grep qdhcp | while read -r line ; do
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ip netns delete $line
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done
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# Start DHCP Agent
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exec /usr/bin/neutron-dhcp-agent --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/dhcp_agent.ini
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