trouble defining a shepherd service

["post@bonni.codes" <post@bonni.codes>]

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Hello,
I am trying to define a shepherd service to add to my system configuration. Reading the docs this is what I came up with:

(define openslides-shepherd-service
  (shepherd-service
   (documentation "Runs the openslides docker-compose.")
   (provision '(openslides))
   (requirement '(dockerd))
   (start #~(make-forkexec-constructor
	     (list
	      #$(file-append docker-compose "/bin/docker-compose")
	      "up")
	     #:directory „/var/openslides"
	     #:log-file "/var/log/openslides.log"
	     #:pid-file "/var/run/openslides.pid"
	     #:user "openslides")
	  )
   (stop #~(make-kill-destructor))))

(define openslides-service-type
  (service-type
   (name 'openslides)
   (description "The openslides-service-type")
   (extensions
    (list (service-extension shepherd-root-service-type openslides-shepherd-service)))
  (default-value '())
  ))

The service only needs to run the docker-compose program in the directory /var/openslides . There is no need for configuration.
If I build my operating system I get the following error:

ice-9/boot-9.scm:1685:16: In procedure raise-exception:
Wrong type to apply: #<<shepherd-service> documentation: "Runs the openslides docker-compose." provision: (openslides) requirement: (dockerd) one-shot?: #f respawn?: #t respawn-limit: #f respawn-delay: #f free-form: #f start: #<gexp (make-forkexec-constructor (list #<gexp-input #<file-append #<package docker-compose@1.29.2 gnu/packages/docker.scm:109 7ff9068e96e0> "/bin/docker-compose">:out> "up") #:directory "/var/openslides" #:log-file "/var/log/openslides.log" #:pid-file "/var/run/openslides.pid" #:user "openslides") /home/chris/helios-system/config.scm:38:10 7ff8fe625c00> stop: #<gexp (make-kill-destructor) /home/chris/helios-system/config.scm:47:9 7ff8fe625bd0> actions: () auto-start?: #t modules: ((shepherd service) ((guix build utils) #:hide (delete)) (guix build syscalls))>

indicating that there ist something wrong with the value for the start and stop fields.
Where am I going wrong?
Kind regards
bonni


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