Redis is not nagios, and this only leads to confusion as to why there
is a nagios domain setting on frontend servers; it also leaves the
`redis0` part of the name buried in the template.
Switch to an explicit variable for the redis hostname.
This is more broadly useful than for just Kandra; provide
documentation and means to install Smokescreen for stand-alone
servers, and motivate its use somewhat more.
This means that in steady-state, `zulip-puppet-apply` is expected to
produce no changes or commands to execute. The verification step of
`setup-apt-repo` is quite fast, so this cleans up the output for very
little cost.
These optimizations only makes sense when all connections at a TCP
level are coming from the same host or set of hosts; as such, they
are only enabled if `loadbalancer.ips` is set in the `zulip.conf`.
This is required for unattended upgrades to actually run regularly.
In some distributions, it may be found in 20auto-upgrades, but placing
it here makes it more discoverable.
We haven't actively used this plugin in years, and so it was never
converted from the 2014-era monitoring to detect the hostname.
This seems worth fixing since we may want to migrate this logic to a
more modern monitoring system, and it's helpful to have it correct.
79931051bd allows outgoing emails from
localhost, but outgoing recipients are still subjected to virtualmaps.
This caused all outgoing email from Zulip with destination addresses
containing `.`, `+`, or starting with `mm`, to be redirected back
through the email gateway.
Bracket the virualmap addresses used for local delivery to the mail
gateway with a restriction on the domain matching the
`postfix.mailname` configuration, regex-escaped, so those only apply
to email destined for that domain.
The hostname is _not_ moved from `mydestination` to
`virtual_alias_domains`, as that would preclude delivery to
actually-local addresses, like `postmaster@`.
We run this tool at DEBUG log level in production, so we will still
see the notice on startup there; this avoids a spammy line in the
development environment output..
`wal-g wal-push` has a known bug with occasionally hanging after file
upload to S3[1]; set a rather long timeout on the upload process, so
that we don't simply stall forever when archiving WAL segments.
[1] https://github.com/wal-g/wal-g/issues/656
Logging `Host` is useful for determining access patterns to realms,
especially if ROOT_DOMAIN_LANDING_PAGE is set. Total response time is
useful in debugging access and performance patterns.
These are respected by `urllib`, and thus also `requests`. We set
`HTTP_proxy`, not `HTTP_PROXY`, because the latter is ignored in
situations which might be running under CGI -- in such cases it may be
coming from the `Proxy:` header in the request.
This provides a single reference point for all zulip.conf settings;
these mostly link out to the more complete documentation about each
setting, elsewhere.
Fixes#12490.
Alex Vandiver
Tim Abbott
Anders Kaseorg
Ganesh Pawar
Sutou Kouhei
Sourabh Rana