When switching between different NixOS configurations (with and
without nullmailer and other services), it can happen that the UID of
the nullmailer user changes. When it happens, the nullmailer service
happily starts, but the user cannot send any email, because the
sendmail wrapper doesn't have permission to write them to the queue.
This commit prevents that. Instead of creating the directories by the
nullmailer user, which doesn't have permissions to change ownership,
we now create them by the systemd-tmpfiles, which has sufficient
permissions to adjust ownership.
most of these are hidden because they're either part of a submodule that
doesn't have its type rendered (eg because the submodule type is used in
an either type) or because they are explicitly hidden. some of them are
merely hidden from nix-doc-munge by how their option is put together.
conversions were done using https://github.com/pennae/nix-doc-munge
using (probably) rev f34e145 running
nix-doc-munge nixos/**/*.nix
nix-doc-munge --import nixos/**/*.nix
the tool ensures that only changes that could affect the generated
manual *but don't* are committed, other changes require manual review
and are discarded.
this mostly means marking options that use markdown already
appropriately and making a few adjustments so they still render
correctly. notable for nftables we have to transform the md links
because the manpage would not render them correctly otherwise.
using regular strings works well for docbook because docbook is not as
whitespace-sensitive as markdown. markdown would render all of these as
code blocks when given the chance.
now nix-doc-munge will not introduce whitespace changes when it replaces
manpage references with the MD equivalent.
no change to the manpage, changes to the HTML manual are whitespace only.
make (almost) all links appear on only a single line, with no
unnecessary whitespace, using double quotes for attributes. this lets us
automatically convert them to markdown easily.
the few remaining links are extremely long link in a gnome module, we'll
come back to those at a later date.
we can't embed syntactic annotations of this kind in markdown code
blocks without yet another extension. replaceable is rare enough to make
this not much worth it, so we'll go with «thing» instead. the module
system already uses this format for its placeholder names in attrsOf
paths.
markdown can't represent the difference without another extension and
both the html manual and the manpage render them the same, so keeping the
distinction is not very useful on its own. with the distinction removed
we can automatically convert many options that use <code> tags to markdown.
the manpage remains unchanged, html manual does not render
differently (but class names on code tags do change from "code" to "literal").
the conversion procedure is simple:
- find all things that look like options, ie calls to either `mkOption`
or `lib.mkOption` that take an attrset. remember the attrset as the
option
- for all options, find a `description` attribute who's value is not a
call to `mdDoc` or `lib.mdDoc`
- textually convert the entire value of the attribute to MD with a few
simple regexes (the set from mdize-module.sh)
- if the change produced a change in the manual output, discard
- if the change kept the manual unchanged, add some text to the
description to make sure we've actually found an option. if the
manual changes this time, keep the converted description
this procedure converts 80% of nixos options to markdown. around 2000
options remain to be inspected, but most of those fail the "does not
change the manual output check": currently the MD conversion process
does not faithfully convert docbook tags like <code> and <package>, so
any option using such tags will not be converted at all.
Otherwise, it wouldn't get restarted when a new system configuration
was activatad, so the Postfix configuration wouldn't be updated.
Fixes: fb2fa1b50f ("nixos/postfix: pull setup into its own unit")
* Removed unused `.package`-option.
* Added explicit postgresql support.
* Create a new meta-package for mailman to make sure each component has
the **same** python and packages can be downgraded if needed (e.g.
psycopg2 or sqlalchemy) without interfering with `pythonPackages` in any way.
* Document why certain python overrides are needed.
Closes#170035Closes#158424
Add support for enabling confinement
but does not enable it by default yet
because so far no module within NixOS uses confinement
hence that would set a precedent.
On first run, Postfix will refuse to start if it's started before
Mailman is up, because it'll try to read the map files generated
Mailman the first time it's started, and they won't exist yet. To fix
this, make sure Postfix isn't started until after Mailman is up if
they're both activated at the same time.
Consider a service that generates postfix lookup tables with
postmap(1), like Mailman. It needs the Postfix configuration file to
exist, but Postfix qmgr needs all the lookup tables its configured
with to exist before it starts. So the service that runs postmap
needs to run after the Postfix configuration and directory structure
is generated, but before Postfix itself is started. To enable this,
we split Postfix into two units: a oneshot unit that sets up the
configuration, and a longrun unit that supervises the Postfix
daemons. The postmap services can then be inserted in between these
two units.
