Heat templates for deploying OpenStack
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# A Heat environment file that enables DVR in the overcloud.
# This works by configuring L3 and Metadata agents on the
# compute nodes.
OS::TripleO::Services::ComputeNeutronL3Agent: ../docker/services/neutron-l3.yaml
OS::TripleO::Services::ComputeNeutronMetadataAgent: ../docker/services/neutron-metadata.yaml
# With using default template values, the Compute nodes also need the br-ex
# bridge to be connected to a physical network.
OS::TripleO::Compute::Net::SoftwareConfig: ../net-config-bridge.yaml
# DVR requires that the L2 population feature is enabled
NeutronMechanismDrivers: ['openvswitch', 'l2population']
NeutronEnableL2Pop: 'True'
# Setting NeutronEnableDVR enables distributed routing support in the
# ML2 plugin and agents that support this feature
NeutronEnableDVR: true
# We also need to set the proper agent mode for the L3 agent. This will only
# affect the agent on the controller node.
NeutronL3AgentMode: 'dvr_snat'
# Enabling DVR deploys additional services to the compute nodes that through
# normal operation will consume memory. The amount required is roughly
# proportional to the number of Neutron routers that will be scheduled to
# that host. It is necessary to reserve memory on the compute nodes to avoid
# memory issues when creating instances that are connected to routed
# networks. The current expected consumption is 50 MB per router in addition
# to the base reserved amount. Deployers should refer to existing
# documentation, release notes, etc. for additional information on estimating
# an appropriate value. The provided value here is based on an estimate of 10
# routers and is an example value *only* and should be reviewed and modified
# if necessary before deploying.
NovaReservedHostMemory: 2560
NeutronL3AgentMode: 'dvr'