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(define-module (gn services discourse))
(use-modules (gnu)
(gn packages ruby)
(guix modules)
(guix records)
(ice-9 match))
(use-service-modules networking shepherd web)
(use-package-modules node ruby)
(define-record-type* <discourse-configuration>
discourse-configuration
make-discourse-configuration
discourse-configuration?
(package discourse-configuration-package ; package
(default discourse))
(deploy-directory discourse-deploy-directory ; string
(default "/srv/http"))
(port discourse-configuration-port ; list of strings
(default '("3000")))
(bundler discourse-configuration-bundler ; package
(default bundler))
)
(define discourse-activation
(match-lambda
(($ <discourse-configuration> package deploy-directory port bundler)
#~(begin
(mkdir-p #$deploy-directory)
(copy-recursively #$package #$deploy-directory)
(for-each make-file-writable (find-files #$deploy-directory))
(with-directory-excursion #$deploy-directory
;; copied from the discourse package.
(substitute* "Gemfile"
;; Don't require specific versions of these gems
(("6.0.3.3") (package-version ruby-rails))
(("2.0.1") (package-version ruby-sassc))
(("active_model_serializers.*") "active_model_serializers'\n")
;; Add tzinfo-data and figure out how to use non-Ruby version later
(("active_model_serializers'")
"active_model_serializers'\ngem 'tzinfo-data'")
;; ruby-cppjieba-rb never finishes the install phase with ruby-2.6
((".*cppjieba_rb.*") ""))
(invoke #$(file-append node "/bin/npm") "install" "svgo")
)
))))
(define discourse-service
(match-lambda
(($ <discourse-configuration> package deploy-directory port bundler)
(with-imported-modules (source-module-closure
'((gnu build shepherd)
(gnu system file-systems)))
(list (shepherd-service
(provision '(discourse))
(requirement '(networking))
(modules '((gnu build shepherd)
(gnu system file-systems)))
(start #~(make-forkexec-constructor/container
(list #$(file-append package "/server.py"))
;; Needs to run from the directory it is located in.
#:directory #$deploy-directory
#:log-file "/var/log/discourse.log"
;; We don't need to set TMPDIR because we're inside a container.
#:environment-variables
'(
;"EDIRECT_PUBMED_MASTER=/export2/PubMed"
;"NLTK_DATA=/var/cache/nltk_data"
;"PERL_LWP_SSL_CA_FILE=/etc/ssl/certs/ca-certificates.crt"
)
;#:mappings (list (file-system-mapping
; (source "/export2/PubMed")
; (target source)
; (writable? #t))
; (file-system-mapping
; (source "/export/ratspub")
; (target source)
; (writable? #t))
; (file-system-mapping
; (source "/var/cache/nltk_data")
; (target source))
; (file-system-mapping
; (source "/etc/ssl/certs")
; (target source)))
))
(stop #~(make-kill-destructor)))))
)))
(define discourse-service-type
(service-type
(name 'discourse)
(extensions
(list
(service-extension activation-service-type
discourse-activation)
(service-extension shepherd-root-service-type
discourse-service)
;; Make sure discourse doesn't get garbage collected.
(service-extension profile-service-type
(compose list discourse-configuration-package))
;; Make sure php-fpm is instantiated.
(service-extension php-fpm-service-type
(const #t))))
(default-value (discourse-configuration))
(description
"Run an instance of Discourse.")))
(operating-system
(host-name "discourse")
(timezone "Etc/UTC")
(locale "en_US.utf8")
(bootloader (bootloader-configuration
(bootloader grub-bootloader)
(targets '("does-not-matter"))))
(file-systems %base-file-systems)
;; No firmware for VMs.
(firmware '())
(packages (append
(list node)
%base-packages))
(services (list (service dhcp-client-service-type)
(service discourse-service-type
;; The following is for testing:
;(discourse-configuration
; (port '("3333")))
))))
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