The original idea for this test was, on top of providing a networkd
test, to provide newcomers with a sample configuration they could use
to get started with networkd.
That's precisely why we were doing this systemd tmpfile dance in the
first place. It was a convenient way to create a runtime file with a
specific mode and owner.
Sadly, this tmpfile rule made the test flaky. There's a race condition
between the wireguard interface configured by systemd-networkd and
systemd-tmpfiles-setup.
Sometimes, networkd is going to try loading the wireguard private key
file *before* the said file gets created by systemd-tmpfiles.
A perfect solution here would be to create a "After" dependency
between wg0.netdev and systemd-tmpfiles-setup.service. Sadly, it is
currently impossible to create such a dependency between a
networkd-specific unit and a service.
We're removing this tmp file in favor of pointing networkd directly to
the Nix store. This is clearly something that shouldn't be done in the
real world for a private file: the store is world-readable. However,
this is the only way I found to fix this test flakiness for now.
In `systemd-243` the option `FwMark` in the `[WireGuard]` section of
a `.netdev`-unit has been renamed to `FirewallMark`[1]. Due to the
removal of deprecated options in our `networkd` module[2] the evaluation
of this test doesn't work.
Renaming the option to its new name fixes the issue.
[1] 1c30b174ed
[2] e9d13d3751
... and remove some weirdnesses.
- Port to Python
- Drop the extra pkgs, config, system args
- Drop all `with`
- Don't override the standard PostgreSQL directory
- Use pkgs and lib from the test runner
Tested with:
- postgresql_12
- postgresql_11
- postgresql_10
- postgresql_9_6
- postgresql_9_5
Closes#96347
cc @flokli
According to RFC4291[1], 2001:db8:: is the anycast address for the
prefix and will be answered by all routers responsible for this prefix.
This means that before the iputils bump, the ping from client to isp was
answered by the router and not by the ISP machine. Switching away from
the anycast address fixes this issue.
Credits for finding this go to @primeos.
[1]: https://tools.ietf.org/html/rfc4291#section-2.6.1Fixes#96188
This test wants to download things from the internet while building the
system. It can probably be fixed by ensuring these paths are present in
the initial nix-store.
