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(cherry picked from commit 1cb52f758cec78b9ac19f47448064b8e9e722b67)
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AgentX does not work stable. From time to time we see the system
service crashing/degrading if something is wrong with SNMP from
util net-snmp.
We should disable it by default and enable it only if configured.
set high-availability vrrp snmp
(cherry picked from commit 47875457cd8b176f7f23a3141175d745aeb14d8a)
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By default we enable `--snmp` for keepalived unit service
Add ability to disable it
set high-availability vrrp disable-snmp
(cherry picked from commit 5ae730a52de2f284e45cd433bb0cf66c8508f2f7)
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Migrate:
high-availability virtual-server 203.0.113.1
to: high-availability virtual-server <name> address 203.0.113.1
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set high-availability vrrp group <name> version 2|3
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Use a single ip-address validator to combine and replace ipv4-address
and ipv6-address validators.
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Add 'maintenance mode' (option disable) for high-availability
set high-availability disable
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T1297: VRRP: add garp options to vrrp
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CLI expects ipv4net/ipv6net but the help strings only suggested it should be
ipv4/ipv6. This has been corrected.
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Allow multiple ports for high-availability virtual-server
The current implementation allows balance only one "virtual" address
and port between between several "real servers"
Allow matching "fwmark" to set traffic which should be balanced
Allow to set port 0 (all traffic) if we use "fwmark"
Add health-check script
set high-availability virtual-server 203.0.113.1 fwmark '111'
set high-availability virtual-server 203.0.113.1 real-server 192.0.2.11 health-check script '/bin/true'
set high-availability virtual-server 203.0.113.1 real-server 192.0.2.11 port '0'
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Since introducing the XML <defaultValue> node it was common, but redundant,
practice to also add a help string indicating which value would be used as
default if the node is unset.
This makes no sense b/c it's duplicated code/value/characters and prone to
error. The node.def scripts should be extended to automatically render the
appropriate default value into the CLI help string.
For e.g. SSH the current PoC renders:
$ cat templates-cfg/service/ssh/port/node.def
multi:
type: txt
help: Port for SSH service (default: 22)
val_help: u32:1-65535; Numeric IP port
...
Not all subsystems are already migrated to get_config_dict() and make use of
the defaults() call - those subsystems need to be migrated, first before the new
default is added to the CLI help.
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Ability to set virtual_address on not vrrp-listen interface
Add ability don't track primary vrrp interface "exclude-vrrp-interface"
Add ability to set tracking (state UP/Down) on desired interfaces
For example eth0 is used for vrrp and we want to track another eth1
interface that not belong to any vrrp-group
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Add new feature, high-availability virtual-server
Change XML, python and templates
Move vrrp to root node 'high-availability' as all logic are
handler by root node 'high-availability'
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Add XML for required 'virtual-server' configuration commands
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