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https://github.com/CumulusNetworks/ifupdown2.git
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99ce689411
Ticket:
Reviewed By: CCR-4268
Testing Done: Tested squashing of interfaces with multiple iface stanzas
This is controlled by ifaceobj_squash config variable in
/etc/network/ifupdown2/ifupdown2.conf.
With ifaceobj_squash=1, ifquery and all commands will
output squashed interfaces.
$cat /etc/network/interfaces
auto swp3
iface swp3
mtu 9000
auto swp3
iface swp3 inet static
address 10.0.17.3/24
auto swp3
iface swp3 inet static
address 10.0.18.3/24
address 2000:1000:1000:1000:3::5/128
$ifquery -a
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet dhcp
auto swp3
iface swp3
mtu 9000
address 10.0.17.3/24
address 10.0.18.3/24
address 2000:1000:1000:1000:3::5/128
When and why do we need this ?
- If we preserve multiple ifaceobjects for the same iface,
it gets tricky in some cases to set default policy
values because the addon module run methods are called
on each ifaceobject.
- Each ifaceobject belonging to the same interface
is treated as a separate interface. It is difficult
to remember things accross addon module run methods
- we have a few hacks in place which we would like to
get rid of
Why not turn it on by default ?
- still debating about it. Dont want to break existing
scripts with change of output. Will get some feedback before
I switch the default to squash.
61 lines
1.8 KiB
Plaintext
61 lines
1.8 KiB
Plaintext
#
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# ifupdown2 configuration file
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#
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# This file contains default settings for ifupdown
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#
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# default template engine (only mako is currently supported)
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template_engine=mako
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# default template lookup path during template rendering
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template_lookuppath=/etc/network/ifupdown2/templates
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# default network configuration filepath
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default_interfaces_configfile=/etc/network/interfaces
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# The -i interfacefile option is allowed by default but
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# can be disabled by setting the below option to 1 to
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# reduce security issues (due to the pre- and post- commands)
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disable_cli_interfacesfile=0
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# Support /etc/network/if-*/ scripts
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addon_scripts_support=0
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# By default ifupdown2 only supports a single vlan filtering bridge
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# on the system. Set this flag to 1 to support multiple vlan
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# filtering bridges
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multiple_vlan_aware_bridge_support=0
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# ifquery check status strings.
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# By default `ifquery --check` prints the check and
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# cross marks against interface attributes.
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# Use the below strings to modify the default behaviour.
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#
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ifquery_check_success_str=pass
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ifquery_check_error_str=fail
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ifquery_check_unknown_str=
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#
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# This attribute controls iface/vlan range expansions
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# in ifquery default output.
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ifquery_ifacename_expand_range=0
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# Let link master (bridges, bonds) own the link state of slaves
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link_master_slave=1
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# Delay admin state change till the end
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delay_admin_state_change=0
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# ifreload by default downs: 'all interfaces for which config changed' +
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# 'interfaces that were deleted'. With the below variable set to '0'
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# ifreload will only down 'interfaces that were deleted'
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ifreload_down_changed=0
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# squash all addr config when you process the first interface
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addr_config_squash=0
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# squash iface config into one when you have multiple
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# ifaces stanzas for an interface
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ifaceobj_squash=0
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