some ban actions need additional packages (eg ipset). since actions can be
provided by the user we need something general that's easy to configure.
we could also enable ipset regardless of the actual configuration of the system
if the iptables firewall is in use (like sshguard does), but that seems very
clumsy and wouldn't easily solve the binary-not-found problems other actions may
also have.
it's not possible to set a different default maxretry value in the DEFAULT jail
because the module already does so. expose the maxretry option to the
configuration to remedy this. (we can't really remove it entirely because
fail2ban defaults to 5)
backends changing shouldn't be very likely, but services may well change. we
should restart sshguard from nixos-rebuild instead of merely plopping down a new
config file and waiting for the user to restart sshguard.
First because IFD (import-from-derivation) is not allowed on hydra.nixos.org,
and second because without https://github.com/NixOS/hydra/pull/825
hydra-eval-jobs crashes instead of skipping aggregated jobs which fail
(here because they required an IFD).
There is no need for a separate unit. Simplify the NixOS module by adding the shell code to preStart of the main unit, where the other initialization code already is.
Things will get quite broken if an /etc/passwd entry contains a
colon (which terminates a field), or a newline (which terminates a
record). I know because I just accidentally made a user whose home
directory path contained a newline!
So let's make sure that can't happen.
The buildkite agent supports multiple tags with the same key. This
functionality is used to have a [single agent listen on multiple
queues](https://buildkite.com/docs/agent/v3/queues#setting-an-agents-queue).
However, having the tags be of type `attrsOf str` means that
we cannot suport this use case. This commit modifies the type
of tags to be `attrsOf (either str (listOf str))` where the list
is expanded into multiple tags with the same key.
Example:
```
{tags = {queue = ["default", "testing"];};}
```
generates
```
tags="queue=default,queue=testing"
```
in the buildkite agent configuration.
Upstream repositories do no longer exists. There has been no release in
a while. - Not a good combination for a network daemon running as root
in C that parses network packets...
