* Most significant is probably the patching necessary to run plausible
with postgres without superuser privilege. This change includes:
* updating ecto_sql to 3.6 where `CREATE DATABASE` is only executed if
it doesn't exist[1].
* patching a migration to only modify the `users.email` column (to use
`citext` rather than creating the extension. `plausible-postgres`
takes care of that).
* Correctly declare dependencies in systemd.
* A few minor fixes.
[1] 051baf669e
Without this change, mailman-settings.service is not guaranteed to
complete before dependent services. This can lead to various errors
like:
mailman-web-setup.service: Changing to the requested working directory failed: No such file or directory
Reusing the same private/public key on renewal has two issues:
- some providers don't accept to sign the same public key
again (Buypass Go SSL)
- keeping the same private key forever partly defeats the purpose of
renewing the certificate often
Therefore, let's remove this option. People wanting to keep the same
key can set extraLegoRenewFlags to `[ --reuse-key ]` to keep the
previous behavior. Alternatively, we could put this as an option whose
default value is true.
The root filesystem resizing step, `resize2fs -M', does not provide any
control over the amount of slack left in the result. It can produce an
arbitrarily tight fit, depending on how well the payload aligns with
ext4 data structures.
This is problematic, as NixOS must create a few files and directories
during its first boot, before the root is enlarged to match the size of
the containing SD card.
An overly tight fit can cause failures in the first stage:
mkdir: can't create directory '/mnt-root/proc': No space left on device
or in the second stage:
install: cannot create directory '/var': No space left on device
A previous version of `make-ext4-fs' (before PR #79368) was explicitly
"reserving" 16 MiB of free space in the final filesystem. Manually
calculating the size of an ext4 filesystem is a perilous endeavor,
however, and the method it employed was apparently unreliable.
Reverting is consequently not a good option.
A solution would be to create some sort of "balloon" occupying inodes
and blocks in the image prior to invoking `resize2fs -M', and to remove
these temporary files/directories before the compression step.
This changeset takes the simpler approach of simply dropping the
resizing step.
Note that this does *not* result in a larger image in general, as the
current procedure does not truncate the `.img' file anyway. In fact, it
has been observed to yield *smaller* compressed images---probably
because of some "noise" left after resizing. E.g., before-vs-after:
-r--r--r-- 2 root root 607M 1. Jan 1970 nixos-sd-image-21.11pre-git-x86_64-linux.img.zst
-r--r--r-- 2 root root 606M 1. Jan 1970 nixos-sd-image-21.11pre-git-x86_64-linux.img.zst
For now you had to know that the actions are retried for 900s when
seeing an error like
> Traceback (most recent call last):
> File "/nix/store/dbvmxk60sv87xsxm7kwzzjm7a4fhgy6y-nixos-test-driver/bin/.nixos-test-driver-wrapped", line 927, in run_tests
> exec(tests, globals())
> File "<string>", line 1, in <module>
> File "<string>", line 31, in <module>
> File "/nix/store/dbvmxk60sv87xsxm7kwzzjm7a4fhgy6y-nixos-test-driver/bin/.nixos-test-driver-wrapped", line 565, in wait_for_file
> retry(check_file)
> File "/nix/store/dbvmxk60sv87xsxm7kwzzjm7a4fhgy6y-nixos-test-driver/bin/.nixos-test-driver-wrapped", line 142, in retry
> raise Exception("action timed out")
> Exception: action timed out
in your (hydra) build failure. Due to the absence of timestamps you were
left guessing if the machine was just slow, someone passed a low timeout
value (which they couldn't until now) or whatever might have happened.
By making this error a bit more descriptive (by including the elapsed
time) these hopefully become more useful.
iptables is currently defined in `all-packages.nix` to be
iptables-compat. That package does however not contain `ethertypes`.
Only `iptables-nftables-compat` contains this file so the symlink
dangles.
A secret key generated by the nixos module was misspelled, which could
possibly impact the security of session cookies.
To recover from this situation we will wipe all security keys that were
previously generated by the NixOS module, when the misspelled one is
found. This will result in all session cookies being invalidated. This
is confirmed by the wordpress documentation:
> You can change these at any point in time to invalidate all existing
> cookies. This does mean that all users will have to login again.
https://wordpress.org/support/article/editing-wp-config-php/#security-keys
Meanwhile this issue shouldn't be too grave, since the salting function
of wordpress will rely on the concatenation of both the user-provided
and automatically generated values, that are stored in the database.
> Secret keys are located in two places: in the database and in the
> wp-config.php file. The secret key in the database is randomly
> generated and will be appended to the secret keys in wp-config.php.
https://developer.wordpress.org/reference/functions/wp_salt/
Fixes: 2adb03fdae ("nixos/wordpress:
generate secrets locally")
Reported-by: Moritz Hedtke <Moritz.Hedtke@t-online.de>
As per `man systemd.path`:
> When a service unit triggered by a path unit terminates
> (regardless whether it exited successfully or failed),
> monitored paths are checked immediately again,
> **and the service accordingly restarted instantly**.
Thus the existence of the path unit made it impossible to stop the
wireguard service using e.g.
systemctl stop wireguard-wg0.service
Systemd path units are not intended for program inputs such
as private key files.
This commit simply removes this usage; the private key is still
generated by the `generateKeyServiceUnit`.
