diff options
| -rw-r--r-- | gnu/services/admin.scm | 152 |
1 files changed, 151 insertions, 1 deletions
diff --git a/gnu/services/admin.scm b/gnu/services/admin.scm index b9e3fa70a4..c25794d8a4 100644 --- a/gnu/services/admin.scm +++ b/gnu/services/admin.scm @@ -20,14 +20,19 @@ (define-module (gnu services admin) #:use-module (gnu packages admin) #:use-module (gnu packages base) + #:use-module (gnu packages logging) #:use-module (gnu services) #:use-module (gnu services mcron) #:use-module (gnu services shepherd) + #:use-module (gnu services web) + #:use-module (gnu system shadow) #:use-module (guix gexp) + #:use-module (guix store) #:use-module (guix packages) #:use-module (guix records) #:use-module (srfi srfi-1) #:use-module (ice-9 vlist) + #:use-module (ice-9 match) #:export (%default-rotations %rotated-files @@ -41,7 +46,27 @@ rottlog-configuration rottlog-configuration? rottlog-service - rottlog-service-type)) + rottlog-service-type + + <tailon-configuration-file> + tailon-configuration-file + tailon-configuration-file? + tailon-configuration-file-paths + tailon-configuration-file-bind + tailon-configuration-file-relative-root-path + tailon-configuration-file-allow-transfers? + tailon-configuration-file-follow-names? + tailon-configuration-file-tail-lines + tailon-configuration-file-allowed-commands + tailon-configuration-file-debug? + + <tailon-configuration> + tailon-configuration + tailon-configuration? + tailon-configuration-config-file + tailon-configuration-package + + tailon-service-type)) ;;; Commentary: ;;; @@ -172,4 +197,129 @@ for ROTATION." rotations))))) (default-value (rottlog-configuration)))) +(define-record-type* <tailon-configuration-file> + tailon-configuration-file make-tailon-configuration-file + tailon-configuration-file? + (paths tailon-configuration-paths + (default '("/var/log"))) + (bind tailon-configuration-file-bind + (default "localhost:8080")) + (relative-root-path tailon-configuration-file-relative-root-path + (default #f)) + (allow-transfers? tailon-configuration-file-allow-transfers? + (default #t)) + (follow-names? tailon-configuration-file-follow-names? + (default #t)) + (tail-lines tailon-configuration-file-tail-lines + (default 200)) + (allowed-commands tailon-configuration-file-allowed-commands + (default '("tail" "grep" "awk"))) + (debug? tailon-configuration-file-debug? + (default #f))) + +(define (tailon-configuration-files-string paths) + (string-append + "\n" + (string-join + (map + (lambda (x) + (string-append + " - " + (cond + ((string? x) + (simple-format #f "'~A'" x)) + ((list? x) + (string-join + (cons (simple-format #f "'~A':" (car x)) + (map + (lambda (x) (simple-format #f " - '~A'" x)) + (cdr x))) + "\n")) + (else (error x))))) + paths) + "\n"))) + +(define-gexp-compiler (tailon-configuration-file-compiler + (file <tailon-configuration-file>) system target) + (match file + (($ <tailon-configuration-file> paths bind relative-root-path + allow-transfers? follow-names? + tail-lines allowed-commands debug?) + (text-file + "tailon-config.yaml" + (string-concatenate + (filter-map + (match-lambda + ((key . value) + (if value + (string-append + key ": " value "\n") + #f))) + `(("files" . ,(tailon-configuration-files-string paths)) + ("bind" . ,bind) + ("relative-root" . ,relative-root-path) + ("allow-transfers" . ,(if allow-transfers? "true" "false")) + ("follow-names" . ,(if follow-names? "true" "false")) + ("tail-lines" . ,(number->string tail-lines)) + ("commands" . ,(string-append "[" + (string-join allowed-commands ", ") + "]")) + ,@(if debug? '(("debug" . "true")) '())))))))) + +(define-record-type* <tailon-configuration> + tailon-configuration make-tailon-configuration + tailon-configuration? + (config-file tailon-configuration-config-file + (default (tailon-configuration-file))) + (package tailon-configuration-package + (default tailon))) + +(define tailon-shepherd-service + (match-lambda + (($ <tailon-configuration> file package) + (list (shepherd-service + (provision '(tailon)) + (documentation "Run the tailon daemon.") + (start #~(make-forkexec-constructor + `(,(string-append #$package "/bin/tailon") + "-c" ,#$file + #$@(if (tailon-configuration-file-debug? file) + ;; It should be possible to specify this option + ;; through the configuration file, but due to a + ;; bug in Tailon, it only works as a command + ;; line argument. + '("--debug") + '())))) + (stop #~(make-kill-destructor))))))) + +(define %tailon-accounts + (list (user-group (name "tailon") (system? #t)) + (user-account + (name "tailon") + (group "tailon") + (system? #t) + (comment "tailon") + (home-directory "/var/empty") + (shell (file-append shadow "/sbin/nologin"))))) + +(define tailon-service-type + (service-type + (name 'tailon) + (extensions + (list (service-extension shepherd-root-service-type + tailon-shepherd-service) + (service-extension account-service-type + (const %tailon-accounts)))) + (compose concatenate) + (extend (lambda (parameter paths) + (tailon-configuration + (inherit parameter) + (config-file + (let ((old-config-file (tailon-configuration-config-file parameter))) + (tailon-configuration-file + (inherit old-config-file) + (paths (append (tailon-configuration-paths old-config-file) + paths)))))))) + (default-value (tailon-configuration)))) + ;;; admin.scm ends here |