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authorClément Lassieur <clement@lassieur.org>2018-08-13 21:05:55 +0200
committerClément Lassieur <clement@lassieur.org>2018-08-31 16:35:39 +0200
commit9fc2922794ffaae48e0a7c536e530ea2e0d46cf3 (patch)
tree3db67934a84cf500bc4db099f15dd153b87cf44b /gnu
parent0b6678cd441006d5cd65a8aa33f17458b3588a19 (diff)
downloadpatches-9fc2922794ffaae48e0a7c536e530ea2e0d46cf3.tar
patches-9fc2922794ffaae48e0a7c536e530ea2e0d46cf3.tar.gz
services: nginx: Get the Shepherd to respawn NGINX.
* gnu/services/web.scm (nginx-shepherd-service): Change 'start' (that is, all actions that don't send a signal to the master process) to return the PID. Wait until the PID file is created and contains an integer because it might be created after the parent process exits.
Diffstat (limited to 'gnu')
-rw-r--r--gnu/services/web.scm16
1 files changed, 15 insertions, 1 deletions
diff --git a/gnu/services/web.scm b/gnu/services/web.scm
index 97976509b6..467656444e 100644
--- a/gnu/services/web.scm
+++ b/gnu/services/web.scm
@@ -599,19 +599,33 @@ of index files."
<nginx-configuration>
(nginx file run-directory)
(let* ((nginx-binary (file-append nginx "/sbin/nginx"))
+ (pid-file (in-vicinity run-directory "pid"))
(nginx-action
(lambda args
#~(lambda _
(invoke #$nginx-binary "-c"
#$(or file
(default-nginx-config config))
- #$@args)))))
+ #$@args)
+ (match '#$args
+ (("-s" . _) #t)
+ (_
+ (let loop ((duration 0))
+ ;; https://bugs.launchpad.net/ubuntu/+source/nginx/+bug/1581864/comments/7
+ (sleep duration)
+ (if (file-exists? #$pid-file)
+ (let ((pid (call-with-input-file #$pid-file read)))
+ ;; it could be #<eof>
+ (if (integer? pid) pid (loop 1)))
+ (loop 1)))))))))
;; TODO: Add 'reload' action.
(list (shepherd-service
(provision '(nginx))
(documentation "Run the nginx daemon.")
(requirement '(user-processes loopback))
+ (modules `((ice-9 match)
+ ,@%default-modules))
(start (nginx-action "-p" run-directory))
(stop (nginx-action "-s" "stop")))))))