mirror of
https://git.in.rschanz.org/ryan77627/guix.git
synced 2024-12-30 08:02:38 -05:00
1012056625
* gnu/services/admin.scm (tailon-configuration-file-compiler): Simplify the handling of debug?.
344 lines
13 KiB
Scheme
344 lines
13 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
|
||
;;; Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
|
||
;;; Copyright © 2016, 2017 Ludovic Courtès <ludo@gnu.org>
|
||
;;;
|
||
;;; This file is part of GNU Guix.
|
||
;;;
|
||
;;; GNU Guix is free software; you can redistribute it and/or modify it
|
||
;;; under the terms of the GNU General Public License as published by
|
||
;;; the Free Software Foundation; either version 3 of the License, or (at
|
||
;;; your option) any later version.
|
||
;;;
|
||
;;; GNU Guix is distributed in the hope that it will be useful, but
|
||
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
;;; GNU General Public License for more details.
|
||
;;;
|
||
;;; You should have received a copy of thye GNU General Public License
|
||
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
|
||
|
||
(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
|
||
|
||
log-rotation
|
||
log-rotation?
|
||
log-rotation-frequency
|
||
log-rotation-files
|
||
log-rotation-options
|
||
log-rotation-post-rotate
|
||
|
||
rottlog-configuration
|
||
rottlog-configuration?
|
||
rottlog-service
|
||
rottlog-service-type
|
||
|
||
<tailon-configuration-file>
|
||
tailon-configuration-file
|
||
tailon-configuration-file?
|
||
tailon-configuration-file-files
|
||
tailon-configuration-file-bind
|
||
tailon-configuration-file-relative-root
|
||
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-file-http-auth
|
||
tailon-configuration-file-users
|
||
|
||
<tailon-configuration>
|
||
tailon-configuration
|
||
tailon-configuration?
|
||
tailon-configuration-config-file
|
||
tailon-configuration-package
|
||
|
||
tailon-service-type))
|
||
|
||
;;; Commentary:
|
||
;;;
|
||
;;; This module implements configuration of rottlog by writing
|
||
;;; /etc/rottlog/{rc,hourly|daily|weekly}. Example usage
|
||
;;;
|
||
;;; (mcron-service)
|
||
;;; (service rottlog-service-type)
|
||
;;;
|
||
;;; Code:
|
||
|
||
(define-record-type* <log-rotation> log-rotation make-log-rotation
|
||
log-rotation?
|
||
(files log-rotation-files) ;list of strings
|
||
(frequency log-rotation-frequency ;symbol
|
||
(default 'weekly))
|
||
(post-rotate log-rotation-post-rotate ;#f | gexp
|
||
(default #f))
|
||
(options log-rotation-options ;list of strings
|
||
(default '())))
|
||
|
||
(define %rotated-files
|
||
;; Syslog files subject to rotation.
|
||
'("/var/log/messages" "/var/log/secure" "/var/log/maillog"))
|
||
|
||
(define %default-rotations
|
||
(list (log-rotation ;syslog files
|
||
(files %rotated-files)
|
||
|
||
;; Restart syslogd after rotation.
|
||
(options '("sharedscripts"))
|
||
(post-rotate #~(let ((pid (call-with-input-file "/var/run/syslog.pid"
|
||
read)))
|
||
(kill pid SIGHUP))))
|
||
(log-rotation
|
||
(files '("/var/log/shepherd.log" "/var/log/guix-daemon.log")))))
|
||
|
||
(define (log-rotation->config rotation)
|
||
"Return a string-valued gexp representing the rottlog configuration snippet
|
||
for ROTATION."
|
||
(define post-rotate
|
||
(let ((post (log-rotation-post-rotate rotation)))
|
||
(and post
|
||
(program-file "rottlog-post-rotate.scm" post))))
|
||
|
||
#~(let ((post #$post-rotate))
|
||
(string-append (string-join '#$(log-rotation-files rotation) ",")
|
||
" {"
|
||
#$(string-join (log-rotation-options rotation)
|
||
"\n " 'prefix)
|
||
(if post
|
||
(string-append "\n postrotate\n " post
|
||
"\n endscript\n")
|
||
"")
|
||
"\n}\n")))
|
||
|
||
(define (log-rotations->/etc-entries rotations)
|
||
"Return the list of /etc entries for ROTATIONS, a list of <log-rotation>."
|
||
(define (frequency-file frequency rotations)
|
||
(computed-file (string-append "rottlog." (symbol->string frequency))
|
||
#~(call-with-output-file #$output
|
||
(lambda (port)
|
||
(for-each (lambda (str)
|
||
(display str port))
|
||
(list #$@(map log-rotation->config
|
||
rotations)))))))
|
||
|
||
(let* ((frequencies (delete-duplicates
|
||
(map log-rotation-frequency rotations)))
|
||
(table (fold (lambda (rotation table)
|
||
(vhash-consq (log-rotation-frequency rotation)
|
||
rotation table))
|
||
vlist-null
|
||
rotations)))
|
||
(map (lambda (frequency)
|
||
`(,(symbol->string frequency)
|
||
,(frequency-file frequency
|
||
(vhash-foldq* cons '() frequency table))))
|
||
frequencies)))
|
||
|
||
(define (default-jobs rottlog)
|
||
(list #~(job '(next-hour '(0)) ;midnight
|
||
(lambda ()
|
||
(system* #$(file-append rottlog "/sbin/rottlog"))))
|
||
#~(job '(next-hour '(12)) ;noon
|
||
(lambda ()
|
||
(system* #$(file-append rottlog "/sbin/rottlog"))))))
|
||
|
||
(define-record-type* <rottlog-configuration>
|
||
rottlog-configuration make-rottlog-configuration
|
||
rottlog-configuration?
|
||
(rottlog rottlog-rottlog ;package
|
||
(default rottlog))
|
||
(rc-file rottlog-rc-file ;file-like
|
||
(default (file-append rottlog "/etc/rc")))
|
||
(rotations rottlog-rotations ;list of <log-rotation>
|
||
(default %default-rotations))
|
||
(jobs rottlog-jobs ;list of <mcron-job>
|
||
(default #f)))
|
||
|
||
(define (rottlog-etc config)
|
||
`(("rottlog"
|
||
,(file-union "rottlog"
|
||
(cons `("rc" ,(rottlog-rc-file config))
|
||
(log-rotations->/etc-entries
|
||
(rottlog-rotations config)))))))
|
||
|
||
(define (rottlog-jobs-or-default config)
|
||
(or (rottlog-jobs config)
|
||
(default-jobs (rottlog-rottlog config))))
|
||
|
||
(define rottlog-service-type
|
||
(service-type
|
||
(name 'rottlog)
|
||
(extensions (list (service-extension etc-service-type rottlog-etc)
|
||
(service-extension mcron-service-type
|
||
rottlog-jobs-or-default)
|
||
|
||
;; Add Rottlog to the global profile so users can access
|
||
;; the documentation.
|
||
(service-extension profile-service-type
|
||
(compose list rottlog-rottlog))))
|
||
(compose concatenate)
|
||
(extend (lambda (config rotations)
|
||
(rottlog-configuration
|
||
(inherit config)
|
||
(rotations (append (rottlog-rotations config)
|
||
rotations)))))
|
||
(default-value (rottlog-configuration))))
|
||
|
||
|
||
;;;
|
||
;;; Tailon
|
||
;;;
|
||
|
||
(define-record-type* <tailon-configuration-file>
|
||
tailon-configuration-file make-tailon-configuration-file
|
||
tailon-configuration-file?
|
||
(files tailon-configuration-file-files
|
||
(default '("/var/log")))
|
||
(bind tailon-configuration-file-bind
|
||
(default "localhost:8080"))
|
||
(relative-root tailon-configuration-file-relative-root
|
||
(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))
|
||
(wrap-lines tailon-configuration-file-wrap-lines
|
||
(default #t))
|
||
(http-auth tailon-configuration-file-http-auth
|
||
(default #f))
|
||
(users tailon-configuration-file-users
|
||
(default #f)))
|
||
|
||
(define (tailon-configuration-files-string files)
|
||
(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)))))
|
||
files)
|
||
"\n")))
|
||
|
||
(define-gexp-compiler (tailon-configuration-file-compiler
|
||
(file <tailon-configuration-file>) system target)
|
||
(match file
|
||
(($ <tailon-configuration-file> files bind relative-root
|
||
allow-transfers? follow-names?
|
||
tail-lines allowed-commands debug?
|
||
wrap-lines http-auth users)
|
||
(text-file
|
||
"tailon-config.yaml"
|
||
(string-concatenate
|
||
(filter-map
|
||
(match-lambda
|
||
((key . #f) #f)
|
||
((key . value) (string-append key ": " value "\n")))
|
||
|
||
`(("files" . ,(tailon-configuration-files-string files))
|
||
("bind" . ,bind)
|
||
("relative-root" . ,relative-root)
|
||
("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 ", ")
|
||
"]"))
|
||
("debug" . ,(if debug? "true" #f))
|
||
("wrap-lines" . ,(if wrap-lines "true" "false"))
|
||
("http-auth" . ,http-auth)
|
||
("users" . ,(if users
|
||
(string-concatenate
|
||
(cons "\n"
|
||
(map (match-lambda
|
||
((user . pass)
|
||
(string-append
|
||
" " user ":" pass)))
|
||
users)))
|
||
#f)))))))))
|
||
|
||
(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> config-file package)
|
||
(list (shepherd-service
|
||
(provision '(tailon))
|
||
(documentation "Run the tailon daemon.")
|
||
(start #~(make-forkexec-constructor
|
||
`(,(string-append #$package "/bin/tailon")
|
||
"-c" ,#$config-file)
|
||
#:user "tailon"
|
||
#:group "tailon"))
|
||
(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 files)
|
||
(tailon-configuration
|
||
(inherit parameter)
|
||
(config-file
|
||
(let ((old-config-file
|
||
(tailon-configuration-config-file parameter)))
|
||
(tailon-configuration-file
|
||
(inherit old-config-file)
|
||
(files (append (tailon-configuration-file-files old-config-file)
|
||
files))))))))
|
||
(default-value (tailon-configuration))))
|
||
|
||
;;; admin.scm ends here
|