04/06: services: shepherd: Add respawn-limit and respawn-delay.

[guix-commits]

civodul pushed a commit to branch master
in repository guix.

commit dde76db33fbdede6bf26821f8c21cca7df45e79e
Author: Attila Lendvai <attila@lendvai.name>
AuthorDate: Thu Jan 25 16:05:41 2024 +0100

    services: shepherd: Add respawn-limit and respawn-delay.
    
    * 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
    Signed-off-by: Ludovic Courtès <ludo@gnu.org>
---
 doc/guix.texi             |  9 +++++++++
 gnu/services/shepherd.scm | 14 ++++++++++++++
 2 files changed, 23 insertions(+)

diff --git a/doc/guix.texi b/doc/guix.texi
index 58c3024642..bb0af26d93 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -43143,6 +43143,15 @@ shepherd, The GNU Shepherd Manual}, for more info.
 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.  @xref{Defining
+Services,,, shepherd, The GNU Shepherd Manual}, for details.
+
+@item @code{respawn-delay} (default: @code{#f})
+When true, this is the delay in 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 5ebac129ce..f5bcde721f 100644
--- a/gnu/services/shepherd.scm
+++ b/gnu/services/shepherd.scm
@@ -55,6 +55,8 @@
             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 @@ DEFAULT is given, use it as the service's default value."
                  (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 @@ stored."
                        #: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