Subject: [bug#68468] [PATCH v2] gnu: services: Add respawn-limit and respawn-delay.

From: [email-masked]
Date: Thu, 25 Jan 2024 16:05:41 +0100

From: Attila Lendvai <[email-masked]>

* gnu/services/shepherd.scm (<shepherd-service>): Add respawn-limit and
respawn-delay.
(shepherd-service-file): Emit the two values into the shepherd service
constructor form.

Change-Id: I54408e8fb4bcc0956d9610771bf5c566fdc2914c
---
 doc/guix.texi             |  8 ++++++++
 gnu/services/shepherd.scm | 14 ++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/doc/guix.texi b/doc/guix.texi
index a66005ee9db..9f911643352 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -42888,6 +42888,14 @@ Shepherd Services
 Whether to restart the service when it stops, for instance when the
 underlying process dies.
 
+@item @code{respawn-limit} (default: @code{#f})
+Set a limit on how many times and how frequently a service may be
+restarted by Shepherd before it is disabled.  See @pxref{Defining
+Services,,, shepherd, The GNU Shepherd Manual} for details.
+
+@item @code{respawn-delay} (default: @code{#f})
+Wait @code{respawn-delay} seconds before restarting a failed service.
+
 @item @code{start}
 @itemx @code{stop} (default: @code{#~(const #f)})
 The @code{start} and @code{stop} fields refer to the Shepherd's
diff --git a/gnu/services/shepherd.scm b/gnu/services/shepherd.scm
index 5ebac129cec..f5bcde721fe 100644
--- a/gnu/services/shepherd.scm
+++ b/gnu/services/shepherd.scm
@@ -55,6 +55,8 @@ (define-module (gnu services shepherd)
             shepherd-service-canonical-name
             shepherd-service-requirement
             shepherd-service-one-shot?
+            shepherd-service-respawn-limit
+            shepherd-service-respawn-delay
             shepherd-service-respawn?
             shepherd-service-start
             shepherd-service-stop
@@ -211,6 +213,10 @@ (define-record-type* <shepherd-service>
                  (default #f))
   (respawn?      shepherd-service-respawn?             ;Boolean
                  (default #t))
+  (respawn-limit shepherd-service-respawn-limit
+                 (default #f))
+  (respawn-delay shepherd-service-respawn-delay
+                 (default #f))
   (start         shepherd-service-start)               ;g-expression (procedure)
   (stop          shepherd-service-stop                 ;g-expression (procedure)
                  (default #~(const #f)))
@@ -309,6 +315,14 @@ (define (shepherd-service-file service)
                        #:one-shot? '#$(shepherd-service-one-shot? service)
 
                        #:respawn? '#$(shepherd-service-respawn? service)
+                       #$@(if (shepherd-service-respawn-limit service)
+                              `(#:respawn-limit
+                                ,(shepherd-service-respawn-limit service))
+                              '())
+                       #$@(if (shepherd-service-respawn-delay service)
+                              `(#:respawn-delay
+                                ,(shepherd-service-respawn-delay service))
+                              '())
                        #:start #$(shepherd-service-start service)
                        #:stop #$(shepherd-service-stop service)
                        #:actions

base-commit: 162d6a2fdd6af13272967c77347a54934ecb45e6
prerequisite-patch-id: 2adcd37ab1f0752ec27a4edabbabe1c65d88f122
-- 
2.41.0