services: dovecot: Copy dovecot.conf to /etc/dovecot.

Many Dovecot utilities compiled with assumption of ‘/etc/dovecot/dovecot.conf’
existence.

* gnu/services/mail.scm (dovecot-shepherd-service): Move config generation.
Invoke ‘dovecot’ without ‘-c’ flag.
(%dovecot-activation): Copy ‘dovecot.conf’ to ‘/etc/dovecot’.
(dovecot-service-type): Make ‘%dovecot-activation’ non-constant.
This commit is contained in:
Oleg Pykhalov 2018-03-06 15:42:49 +03:00
parent a539ad867d
commit 6310dff1dc
No known key found for this signature in database
GPG key ID: 7246E11C69B79569

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@ -1435,90 +1435,91 @@ (define %dovecot-accounts
(home-directory "/var/empty")
(shell (file-append shadow "/sbin/nologin")))))
(define %dovecot-activation
(define (%dovecot-activation config)
;; Activation gexp.
#~(begin
(use-modules (guix build utils))
(define (mkdir-p/perms directory owner perms)
(mkdir-p directory)
(chown "/var/run/dovecot" (passwd:uid owner) (passwd:gid owner))
(chmod directory perms))
(define (build-subject parameters)
(string-concatenate
(map (lambda (pair)
(let ((k (car pair)) (v (cdr pair)))
(define (escape-char str chr)
(string-join (string-split str chr) (string #\\ chr)))
(string-append "/" k "="
(escape-char (escape-char v #\=) #\/))))
(filter (lambda (pair) (cdr pair)) parameters))))
(define* (create-self-signed-certificate-if-absent
#:key private-key public-key (owner (getpwnam "root"))
(common-name (gethostname))
(organization-name "GuixSD")
(organization-unit-name "Default Self-Signed Certificate")
(subject-parameters `(("CN" . ,common-name)
("O" . ,organization-name)
("OU" . ,organization-unit-name)))
(subject (build-subject subject-parameters)))
;; Note that by default, OpenSSL outputs keys in PEM format. This
;; is what we want.
(unless (file-exists? private-key)
(cond
((zero? (system* (string-append #$openssl "/bin/openssl")
"genrsa" "-out" private-key "2048"))
(chown private-key (passwd:uid owner) (passwd:gid owner))
(chmod private-key #o400))
(else
(format (current-error-port)
"Failed to create private key at ~a.\n" private-key))))
(unless (file-exists? public-key)
(cond
((zero? (system* (string-append #$openssl "/bin/openssl")
"req" "-new" "-x509" "-key" private-key
"-out" public-key "-days" "3650"
"-batch" "-subj" subject))
(chown public-key (passwd:uid owner) (passwd:gid owner))
(chmod public-key #o444))
(else
(format (current-error-port)
"Failed to create public key at ~a.\n" public-key)))))
(let ((user (getpwnam "dovecot")))
(mkdir-p/perms "/var/run/dovecot" user #o755)
(mkdir-p/perms "/var/lib/dovecot" user #o755)
(mkdir-p/perms "/etc/dovecot" user #o755)
(mkdir-p/perms "/etc/dovecot/private" user #o700)
(create-self-signed-certificate-if-absent
#:private-key "/etc/dovecot/private/default.pem"
#:public-key "/etc/dovecot/default.pem"
#:owner (getpwnam "root")
#:common-name (format #f "Dovecot service on ~a" (gethostname))))))
(let ((config-str
(cond
((opaque-dovecot-configuration? config)
(opaque-dovecot-configuration-string config))
(else
(with-output-to-string
(lambda ()
(serialize-configuration config
dovecot-configuration-fields)))))))
#~(begin
(use-modules (guix build utils))
(define (mkdir-p/perms directory owner perms)
(mkdir-p directory)
(chown "/var/run/dovecot" (passwd:uid owner) (passwd:gid owner))
(chmod directory perms))
(define (build-subject parameters)
(string-concatenate
(map (lambda (pair)
(let ((k (car pair)) (v (cdr pair)))
(define (escape-char str chr)
(string-join (string-split str chr) (string #\\ chr)))
(string-append "/" k "="
(escape-char (escape-char v #\=) #\/))))
(filter (lambda (pair) (cdr pair)) parameters))))
(define* (create-self-signed-certificate-if-absent
#:key private-key public-key (owner (getpwnam "root"))
(common-name (gethostname))
(organization-name "GuixSD")
(organization-unit-name "Default Self-Signed Certificate")
(subject-parameters `(("CN" . ,common-name)
("O" . ,organization-name)
("OU" . ,organization-unit-name)))
(subject (build-subject subject-parameters)))
;; Note that by default, OpenSSL outputs keys in PEM format. This
;; is what we want.
(unless (file-exists? private-key)
(cond
((zero? (system* (string-append #$openssl "/bin/openssl")
"genrsa" "-out" private-key "2048"))
(chown private-key (passwd:uid owner) (passwd:gid owner))
(chmod private-key #o400))
(else
(format (current-error-port)
"Failed to create private key at ~a.\n" private-key))))
(unless (file-exists? public-key)
(cond
((zero? (system* (string-append #$openssl "/bin/openssl")
"req" "-new" "-x509" "-key" private-key
"-out" public-key "-days" "3650"
"-batch" "-subj" subject))
(chown public-key (passwd:uid owner) (passwd:gid owner))
(chmod public-key #o444))
(else
(format (current-error-port)
"Failed to create public key at ~a.\n" public-key)))))
(let ((user (getpwnam "dovecot")))
(mkdir-p/perms "/var/run/dovecot" user #o755)
(mkdir-p/perms "/var/lib/dovecot" user #o755)
(mkdir-p/perms "/etc/dovecot" user #o755)
(copy-file #$(plain-file "dovecot.conf" config-str)
"/etc/dovecot/dovecot.conf")
(mkdir-p/perms "/etc/dovecot/private" user #o700)
(create-self-signed-certificate-if-absent
#:private-key "/etc/dovecot/private/default.pem"
#:public-key "/etc/dovecot/default.pem"
#:owner (getpwnam "root")
#:common-name (format #f "Dovecot service on ~a" (gethostname)))))))
(define (dovecot-shepherd-service config)
"Return a list of <shepherd-service> for CONFIG."
(let* ((config-str
(cond
((opaque-dovecot-configuration? config)
(opaque-dovecot-configuration-string config))
(else
(with-output-to-string
(lambda ()
(serialize-configuration config
dovecot-configuration-fields))))))
(config-file (plain-file "dovecot.conf" config-str))
(dovecot (if (opaque-dovecot-configuration? config)
(opaque-dovecot-configuration-dovecot config)
(dovecot-configuration-dovecot config))))
(let ((dovecot (if (opaque-dovecot-configuration? config)
(opaque-dovecot-configuration-dovecot config)
(dovecot-configuration-dovecot config))))
(list (shepherd-service
(documentation "Run the Dovecot POP3/IMAP mail server.")
(provision '(dovecot))
(requirement '(networking))
(start #~(make-forkexec-constructor
(list (string-append #$dovecot "/sbin/dovecot")
"-F" "-c" #$config-file)))
"-F")))
(stop #~(make-forkexec-constructor
(list (string-append #$dovecot "/sbin/dovecot")
"-c" #$config-file "stop")))))))
"stop")))))))
(define %dovecot-pam-services
(list (unix-pam-service "dovecot")))
@ -1533,7 +1534,7 @@ (define dovecot-service-type
(service-extension pam-root-service-type
(const %dovecot-pam-services))
(service-extension activation-service-type
(const %dovecot-activation))))))
%dovecot-activation)))))
(define* (dovecot-service #:key (config (dovecot-configuration)))
"Return a service that runs @command{dovecot}, a mail server that can run