53b58388d3
When clouds have a large number of hosts, the default size of the ARP cache is too small. The cache can overflow, which means that the system has no way to reach some ip addresses. Setting the threshold limits higher addresses the situation, in a reasonably safe way (the maximum impact is 5MB or so of additional RAM used). Docs on ARP at http://man7.org/linux/man-pages/man7/arp.7.html, and more discussion of the issue in the bug. Change-Id: I701141784224f5f870f6da73a24bed8015694409 Closes-Bug: 1780348
310 lines
12 KiB
YAML
310 lines
12 KiB
YAML
options:
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debug:
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type: boolean
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default: False
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description: Enable debug logging.
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verbose:
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type: boolean
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default: False
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description: Enable verbose logging.
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use-syslog:
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type: boolean
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default: False
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description: |
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Setting this to True will allow supporting services to log to syslog.
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openstack-origin:
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type: string
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default: distro
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description: |
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Repository from which to install. May be one of the following:
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distro (default), ppa:somecustom/ppa, a deb url sources entry,
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or a supported Ubuntu Cloud Archive, e.g.
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.
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cloud:<series>-<openstack-release>
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cloud:<series>-<openstack-release>/updates
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cloud:<series>-<openstack-release>/staging
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cloud:<series>-<openstack-release>/proposed
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.
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See https://wiki.ubuntu.com/OpenStack/CloudArchive for info on which
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cloud archives are available and supported.
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.
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NOTE: updating this setting to a source that is known to provide
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a later version of OpenStack will trigger a software upgrade unless
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action-managed-upgrade is set to True.
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action-managed-upgrade:
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type: boolean
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default: False
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description: |
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If True enables openstack upgrades for this charm via juju actions.
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You will still need to set openstack-origin to the new repository but
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instead of an upgrade running automatically across all units, it will
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wait for you to execute the openstack-upgrade action for this charm on
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each unit. If False it will revert to existing behavior of upgrading
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all units on config change.
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harden:
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type: string
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default:
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description: |
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Apply system hardening. Supports a space-delimited list of modules
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to run. Supported modules currently include os, ssh, apache and mysql.
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rabbit-user:
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type: string
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description: RabbitMQ user
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default: neutron
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rabbit-vhost:
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type: string
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description: RabbitMQ Virtual Host
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default: openstack
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nova-rabbit-user:
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type: string
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description: RabbitMQ Nova user
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default: nova
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nova-rabbit-vhost:
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type: string
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description: RabbitMQ Nova Virtual Host
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default: openstack
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plugin:
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type: string
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default: ovs
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description: |
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Network configuration plugin to use for quantum.
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Supported values include:
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.
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ovs - ML2 + Open vSwitch
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nsx - VMware NSX
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n1kv - Cisco N1kv
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ovs-odl - ML2 + Open vSwitch with OpenDayLight Controller
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ext-port:
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type: string
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default:
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description: |
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[DEPRECATED] Use bridge-mappings and data-port to create a network
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which can be used for external connectivity. You can call the network
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external and the bridge br-ex by convention, but neither is required.
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.
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Space-delimited list of external ports to use for routing of instance
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traffic to the external public network. Valid values are either MAC
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addresses (in which case only MAC addresses for interfaces without an IP
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address already assigned will be used), or interfaces (eth0)
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data-port:
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type: string
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default:
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description: |
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Space-delimited list of bridge:port mappings. Ports will be added to
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their corresponding bridge. The bridges will allow usage of flat or
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VLAN network types with Neutron and should match this defined in
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bridge-mappings.
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.
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Ports provided can be the name or MAC address of the interface to be
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added to the bridge. If MAC addresses are used, you may provide multiple
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bridge:mac for the same bridge so as to be able to configure multiple
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units. In this case the charm will run through the provided MAC addresses
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for each bridge until it finds one it can resolve to an interface name.
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run-internal-router:
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type: string
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default: all
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description: |
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Optional configuration to support how the L3 agent option
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handle_internal_only_routers is configured.
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all => Set to be true everywhere
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none => Set to be false everywhere
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leader => Set to be true on one node (the leader) and false everywhere
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else.
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Use leader and none when configuring multiple floating pools
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external-network-id:
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type: string
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default:
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description: |
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Optional configuration to set the external-network-id. Only needed when
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configuring multiple external networks and should be used in conjunction
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with run-internal-router.
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instance-mtu:
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type: int
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default:
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description: |
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Configure DHCP services to provide MTU configuration to instances
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within the cloud. This is useful in deployments where its not
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possible to increase MTU on switches and physical servers to
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accommodate the packet overhead of using GRE tunnels.
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dnsmasq-flags:
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type: string
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default:
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description: |
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Comma-separated list of key=value config flags with the additional
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dhcp options for neutron dnsmasq.
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dns-servers:
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type: string
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default:
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description: |
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A comma-separated list of DNS servers which will be used by dnsmasq as
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forwarders.
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enable-l3-agent:
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type: boolean
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default: True
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description: |
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Optional configuration to support use of linux router
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Note that this is used only for Cisco n1kv plugin.
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worker-multiplier:
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type: float
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default:
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description: |
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The CPU core multiplier to use when configuring worker processes for
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this service. By default, the number of workers for each daemon is
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set to twice the number of CPU cores a service unit has. When deployed
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in a LXD container, this default value will be capped to 4 workers
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unless this configuration option is set.
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bridge-mappings:
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type: string
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default: 'physnet1:br-data'
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description: |
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Space-separated list of ML2 data bridge mappings with format
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<provider>:<bridge>.
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flat-network-providers:
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type: string
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default:
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description: |
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Space-delimited list of Neutron flat network providers.
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vlan-ranges:
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type: string
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default: "physnet1:1000:2000"
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description: |
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Space-delimited list of <physical_network>:<vlan_min>:<vlan_max> or
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<physical_network> specifying physical_network names usable for VLAN
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provider and tenant networks, as well as ranges of VLAN tags on each
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available for allocation to tenant networks.
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aa-profile-mode:
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type: string
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default: 'disable'
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description: |
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Experimental enable apparmor profile. Valid settings: 'complain',
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'enforce' or 'disable'. AA disabled by default.
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enable-metadata-network:
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type: boolean
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default: False
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description: |
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The metadata network is used by solutions which do not leverage the l3
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agent for providing access to the metadata service.
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enable-isolated-metadata:
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type: boolean
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default: False
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description: |
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Enable metadata on an isolated network (no router ports).
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sysctl:
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type: string
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default: |
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{ net.ipv4.neigh.default.gc_thresh1 : 128,
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net.ipv4.neigh.default.gc_thresh2 : 28672,
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net.ipv4.neigh.default.gc_thresh3 : 32768,
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net.ipv6.neigh.default.gc_thresh1 : 128,
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net.ipv6.neigh.default.gc_thresh2 : 28672,
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net.ipv6.neigh.default.gc_thresh3 : 32768,
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net.nf_conntrack_max : 1000000,
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net.netfilter.nf_conntrack_max : 1000000 }
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description: |
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YAML-formatted associative array of sysctl key/value pairs to be set
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persistently e.g. '{ kernel.pid_max : 4194303 }'.
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# Network config (by default all access is over 'private-address')
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os-data-network:
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type: string
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default:
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description: |
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The IP address and netmask of the OpenStack Data network (e.g.
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192.168.0.0/24)
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.
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This network will be used for tenant network traffic in overlay
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networks.
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# Legacy (Icehouse) HA
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ha-legacy-mode:
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type: boolean
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default: False
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description: |
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If True will enable Pacemaker to monitor the neutron-ha-monitor daemon
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on every neutron-gateway unit, which detects neutron agents status and
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reschedule resources hosting on failed agents, detects local errors and
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release resources when network is unreachable or do necessary recover
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tasks. This feature targets to < Juno which doesn't natively support HA
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in Neutron itself.
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ha-bindiface:
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type: string
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default: eth0
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description: |
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Default network interface on which HA cluster will bind to communicate
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with the other members of the HA Cluster.
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ha-mcastport:
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type: int
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default: 5409
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description: |
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Default multicast port number that will be used to communicate between
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HA Cluster nodes.
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# Monitoring config
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nagios_context:
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type: string
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default: "juju"
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description: |
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Used by the nrpe-external-master subordinate charm.
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A string that will be prepended to instance name to set the host name
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in Nagios. So for instance the hostname would be something like:
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juju-myservice-0
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If you're running multiple environments with the same services in them
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this allows you to differentiate between them.
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nagios_servicegroups:
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type: string
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default: ""
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description: |
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A comma-separated list of Nagios service groups.
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If left empty, the nagios_context will be used as the servicegroup
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ipfix-target:
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type: string
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default:
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description: |
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IPFIX target wit the format "IP_Address:Port". This will enable IPFIX
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exporting on all OVS bridges to the target, including br-int and br-ext.
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vendor-data:
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type: string
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default:
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description: |
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A JSON-formatted string that will serve as vendor metadata
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(via "StaticJSON" provider) to all VM's within an OpenStack deployment,
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regardless of project or domain. For deployments of Rocky or later
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this value is ignored. Please set the corresponding value in the
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nova-cloud-controller charm.
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vendor-data-url:
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type: string
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default:
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description: |
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A URL serving JSON-formatted data that will serve as vendor metadata
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(via "DynamicJSON" provider) to all VM's within an OpenStack deployment,
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regardless of project or domain.
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.
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Only supported in OpenStack Newton and higher. For deployments of Rocky or
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later this value is ignored. Please set the corresponding value in the
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nova-cloud-controller charm.
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default-availability-zone:
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type: string
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default: 'nova'
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description: |
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Default availability zone to use for agents (l3, dhcp) on this machine.
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If this option is not set, the default availability zone 'nova' is used.
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If customize-failure-domain is set to True, it will override this option
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only if an AZ is set by the Juju provider. If JUJU_AVAILABILITY_ZONE is
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not set, the value specified by this option will be used regardless of
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customize-failure-domain's setting.
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NOTE: Router and Network objects have a property called
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availability_zone_hints which can be used to restrict dnsmasq
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and router namespace placement by DHCP and L3 agents to specific
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neutron availability zones. Neutron AZs are not tied to Nova AZs but
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their names can match.
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.
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customize-failure-domain:
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type: boolean
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default: False
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description: |
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Juju propagates availability zone information to charms from the
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underlying machine provider such as MAAS and this option allows the
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charm to use JUJU_AVAILABILITY_ZONE to set default_availability_zone
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for Neutron agents (DHCP and L3 agents). This option overrides the
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default-availability-zone charm config setting only when the Juju
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provider sets JUJU_AVAILABILITY_ZONE.
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