From 1def557525157481da42fbd153a00729cce32d87 Mon Sep 17 00:00:00 2001 From: Janne Heß Date: Fri, 25 Feb 2022 14:32:44 +0100 Subject: nixos/switch-to-configuration: Document and test socket-activated services --- nixos/doc/manual/development/unit-handling.section.md | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) (limited to 'nixos/doc/manual/development') diff --git a/nixos/doc/manual/development/unit-handling.section.md b/nixos/doc/manual/development/unit-handling.section.md index d477f2c860f35..bd4fe9e670f5e 100644 --- a/nixos/doc/manual/development/unit-handling.section.md +++ b/nixos/doc/manual/development/unit-handling.section.md @@ -41,17 +41,18 @@ checks: `RefuseManualStop` in the `[Unit]` section, and `X-OnlyManualStart` in the `[Unit]` section. - - The rest of the behavior is decided whether the unit has `X-StopIfChanged` - in the `[Service]` section set (exposed via + - Further behavior depends on the unit having `X-StopIfChanged` in the + `[Service]` section set to `true` (exposed via [systemd.services.\.stopIfChanged](#opt-systemd.services)). This is set to `true` by default and must be explicitly turned off if not wanted. If the flag is enabled, the unit is **stop**ped and then **start**ed. If not, the unit is **restart**ed. The goal of the flag is to make sure that the new unit never runs in the old environment which is still in place - before the activation script is run. + before the activation script is run. This behavior is different when the + service is socket-activated, as outlined in the following steps. - The last thing that is taken into account is whether the unit is a service - and socket-activated. Due to a bug, this is currently only done when - `X-StopIfChanged` is set. If the unit is socket-activated, the socket is - stopped and started, and the service is stopped and to be started by socket - activation. + and socket-activated. If `X-StopIfChanged` is **not** set, the service + is **restart**ed with the others. If it is set, both the service and the + socket are **stop**ped and the socket is **start**ed, leaving socket + activation to start the service when it's needed. -- cgit 1.4.1