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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
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Checks if an IPv6 address on a specific network interface is
in the tentative state. IPv6 tentative addresses are not fully configured
and are undergoing Duplicate Address Detection (DAD) to ensure they are
unique on the network.
inet6 2001:db8::3/125 scope global tentative
It tentative state the group enters in FAULT state. Fix it.
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This prevents a failover from MASTER -> BACKUP when changing any MASTER related
configuration.
(cherry picked from commit 2c82c9acbde2ccca9c7bb5e646a45fd646463afe)
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Do not create rfc3768-compatibility interfaces by default because of wrong
Jinja2 syntax. Backporting the entire system makes it easier in the future to
additional bugfixes.
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Commit 260f3832 ("vrrp: keepalived: T616: drop /etc/default/keepalived") dropped
the old daemon configuration but there was one line of code that tried to delete
the file which was no longer present.
This resulted in: KeyError: 'daemon'
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This is a follow-up commit to 65398e5c8 ("vrrp: keepalived: T616: move
configuration to volatile /run directory") as it makes no sense to store a
static /etc/default/keepalived file marked as "Autogenerated by VyOS" that only
enabled the SNMP option to keepalived.
Better pass the --snmp switch via the systemd override file and drop all other
references/files.
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Move keepalived configuration from /etc/keepalived to /run/keepalived.
(cherry picked from commit b243795eba1b36cadd81c3149e833bdf5c5bea70)
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This is a successor to commit a2ac9fac16e ("vyos.template: T2720: always enable
Jinja2 trim_blocks feature"). It only shifts the whitespaces / indents inside
the keepalived configuration file.
(cherry picked from commit c1ac0630cfe0ee65569fbe435cc006ade20fed22)
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deprecation warnings.
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airbag must now be explicitly installed.
the patch also allow to fully disables the installation of the logging
code at setup (and not just installing and doing nothing)
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Tidied up the code and moved it under VRRP in view to use
with show-interface (which has VRRP filtering)
No change in functionality
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convert all call to jinja to use template.render
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os.system does print the ouput of the command, run() does not.
A new function called call() does the printing and return the error code.
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Note: if transition-scripts configured for both vrrp instance and sync group, which are it a member of, both scripts will be executed.
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In old implementation, all notify scripts are configured directly inside a keepalived.conf. This way is not recommended even by keepalived as scripts execution is not tracked and they may be running not in order and killed before the actual work will be finished. We have observed such situations in very rare cases during tests.
New implementation use FIFO pipe, to which keepalived send any state changes. And these notifications are read by a daemon, saved in a queue and processed one by one, which eliminates the situation when the scripts creating inconsistent config or environment.
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transaction-script 'stop'
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It is possible to add a nonexistent interface to the VRRP configuration, but this will lead to keepalived error and stop after configuration reload.
With this new parameter, keepalived will consider nonexistent interfaces as FAULT instead crash and start VRRP on them, when they will appear on the system, which is a feature and much more correct behavior.
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in unicast mode (patch by Johan Fredin).
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- adding vmac_xmit_base to keepalived.conf when use_vmac is being used
otherwise both nodes will become master
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Watcher7).
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Since it does not understand escaped quotes inside notify_* options,
until we fix that, we have to put the script and its arguments
in positional arguments and join inside the transition script runner.
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