feat(ops/modules): add module for receiving a depot replica

This module sets up a user with an SSH key and permissions to receive
a (pushed) replica of depot from Gerrit.

This still needs appropriate configuration in Gerrit's replication
plugin on the other end.

This module has been enabled for sanduny. For now it does not (yet)
configure git serving.

Change-Id: I0fb6f7e696609e71008308e855bdf305dcbcd4f7
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5913
Tested-by: BuildkiteCI
Autosubmit: tazjin <tazjin@tvl.su>
Reviewed-by: sterni <sternenseemann@systemli.org>
This commit is contained in:
Vincent Ambo 2022-07-03 14:34:29 +03:00 committed by clbot
parent 255750471b
commit 6ab6724e4c
2 changed files with 49 additions and 0 deletions

View file

@ -14,6 +14,7 @@ let
in
{
imports = [
(mod "depot-replica.nix")
(mod "journaldriver.nix")
(mod "known-hosts.nix")
(mod "tvl-cache.nix")
@ -76,6 +77,9 @@ in
preserveGenerations = "90d";
};
# Allow Gerrit to replicate depot to /var/lib/depot
services.depot.replica.enable = true;
time.timeZone = "UTC";
# GRUB does not actually need to be installed on disk; Bitfolk have

View file

@ -0,0 +1,45 @@
# Configuration for receiving a depot replica from Gerrit's
# replication plugin.
#
# This only prepares the user and folder for receiving the replica,
# but Gerrit configuration still needs to be modified in addition.
{ config, depot, lib, pkgs, ... }:
let
cfg = config.services.depot.replica;
in
{
options.services.depot.replica = with lib; {
enable = mkEnableOption "Receive depot git replica from Gerrit";
key = mkOption {
description = "Public key to use for replication";
type = types.str;
default = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFFab9O1xaQ1TCyn+CxmXHexdlLzURREG+UR3Qdi3BvH";
};
path = mkOption {
description = "Replication destination path (will be created)";
type = types.str;
default = "/var/lib/depot";
};
};
config = lib.mkIf cfg.enable {
users.groups.depot = { };
users.users.depot = {
group = "depot";
isSystemUser = true;
createHome = true;
home = cfg.path;
homeMode = "750"; # group can read depot
openssh.authorizedKeys.keys = lib.singleton cfg.key;
shell = pkgs.bashInteractive; # gerrit needs to run shell commands
};
environment.systemPackages = [
pkgs.git
];
};
}