metznet-channel/gnu/services/slapd.scm

161 lines
9.4 KiB
Scheme

(define-module (gnu services slapd)
#:use-module (guix gexp)
#:use-module (gnu packages slapd)
#:use-module (gnu packages admin)
#:use-module (gnu system shadow)
#:use-module (gnu services configuration)
#:use-module (gnu services shepherd)
#:use-module (gnu services base)
#:use-module (gnu services)
#:use-module (srfi srfi-19)
#:export (slapd-configuration slapd-service-type))
(define list-of-file-like?
(list-of file-like?))
(define-configuration/no-serialization slapd-configuration
(openldap (file-like openldap-slapd)
"openldap package to use")
(home (string "/var/lib/slapd")
"slapd home directory")
(backups (list-of-file-like '())
"alist of databases and their backup ldif files")
(backup-date (date (current-date))
"date that backup(seed) is from, to not use the same/older seed")
(uris (string "ldap:// ldapi://")
"slapd uris to accept connections to"))
(define (slapd-accounts config)
(list (user-group
(name "slapd")
(system? #t))
(user-account
(name "slapd")
(group "slapd")
(system? #t)
(comment "openldap service account")
(home-directory "/var/lib/slapd")
(shell #~(string-append #$shadow "/sbin/nologin")))))
(define (slapd-activation config)
(let ((homedir (slapd-configuration-home config))
(backups (slapd-configuration-backups config))
(ldapdir (slapd-configuration-openldap config)))
(with-imported-modules '((srfi srfi-19)
(ice-9 textual-ports))
#~(begin
(use-modules (srfi srfi-19)
(ice-9 textual-ports))
(define (range n m)
(if (>= n m)
'()
(cons n
(range (+ n 1) m))))
(define (slapadd-seeds e)
(begin
(format (current-error-port)
"SLAPADD Exception: ~s\n" e)
(for-each (lambda (ldif dbno)
(begin
(invoke (string-append #$sudo
"/bin/sudo")
"-u"
"slapd"
"-g"
"slapd"
(string-append #$ldapdir
"/sbin/slapadd")
"-F"
(string-append #$homedir
"/slapd.d")
"-n"
(number->string dbno)
"-l"
ldif)))
'#+backups
(range 0
(length `#+backups)))
(let ((port (open-output-file (string-append #$homedir
"/.last_slapadd_restore")))
(time-str #$(date->string (slapd-configuration-backup-date
config)
"~4")))
(begin
(put-string port time-str)
(close-port port)))))
(define (check-slapadd-seed-date)
(let* ((verfile (string-append #$homedir
"/.last_slapadd_restore"))
(port (open-input-file verfile))
(date-string (get-string-all port)))
(begin
(display date-string)
(close-port port)
(if (> #$(time-second (date->time-utc (slapd-configuration-backup-date
config)))
(time-second (date->time-utc (string->date
date-string
"~Y-~m-~dT~H:~M:~S~z"))))
(raise-exception (make-message
"configured backups newer than last restored"))
(display
"database seed older than last used seed")))))
(let ((user (getpw "slapd")))
(mkdir-p/perms "/var/run/slapd" user 493)
(mkdir-p/perms #$homedir user 493)
(mkdir-p/perms (string-append #$homedir
"/slapd.d")
user 488)
(install-file (string-append #$ldapdir
"/libexec/openldap/pw-totp.so")
(string-append #$homedir
"/modules"))
(mkdir-p/perms (string-append #$homedir
"/modules")
user 488)
(mkdir-p/perms (string-append #$homedir
"/data") user
488))
(with-exception-handler slapadd-seeds
check-slapadd-seed-date
#:unwind? #t)))))
(define (slapd-shepherd-service config)
(list (shepherd-service (documentation "")
(provision '(slapd))
(requirement '(networking user-processes))
(start #~(make-forkexec-constructor (list (string-append #$
(slapd-configuration-openldap
config)
"/libexec/slapd")
"-d"
"-1"
"-F"
"/var/lib/slapd/slapd.d"
"-u"
"slapd"
"-g"
"slapd")
#:environment-variables
(list (string-append
"LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:"
#$(slapd-configuration-home
config)
"/modules"))
#:user "root"
#:group "root"))
(stop #~(make-kill-destructor)))))
(define slapd-service-type
(service-type (name 'slapd)
(description "openldap slapd service")
(extensions (list (service-extension account-service-type
slapd-accounts)
(service-extension activation-service-type
slapd-activation)
(service-extension
shepherd-root-service-type
slapd-shepherd-service)))
(default-value (slapd-configuration))))