services: herd: Make %shepherd-socket-file a parameter and export it.

* gnu/services/herd.scm (%shepherd-socket-file): Make it an exported
  parameter.
(open-connection): Adapt.

services: nscd: Create /etc/resolv.conf if it does not exist.

* gnu/services/base.scm (nscd-activation): Create /etc/resolv.conf if it
does not exist yet.

gnu: services: nginx: Fix key verification.

* gnu/services/web.scm (default-nginx-server-config): Fix wrong variable name.

gnu: services: Create logs directory.

* gnu/services/web.scm (nginx-activation): Create logs directory so nginx can
log its startup messages before it loads its configuration.

gnu: services: nginx: Test certificate presence.

* gnu/services/web.scm (default-nginx-server-config): Test certificate
presence when https is requested at configure time.

Merge branch 'master' into staging

services: Make exim-service-type use mail-aliases-service-type

* gnu/services/mail.scm (exim-configuration)[aliases]: Remove field.
(exim-activation, exim-shepherd-service): Remove alias from matches.
(exim-etc): Remove procedure.
(exim-service-type): Extend mail-aliases-service-type instead of
etc-service-type.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

services: Add mail-aliases-service-type.

* gnu/services/mail.scm (mail-aliases-etc): New procedure.
(mail-aliases-service-type): New variable.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

services: guix-publish: Add 'cache', 'workers', and 'ttl' config knobs.

* gnu/services/base.scm (<guix-publish-configuration>)[cache, workers,
ttl]: New fields.
(guix-publish-shepherd-service): Honor them.
(guix-publish-activation): New procedure.
(guix-publish-service-type): Extend ACTIVATION-SERVICE-TYPE.
* doc/guix.texi (Base Services): Document it.

services: guix-publish: Fix getter names.

Fixes a typo introduced in 697ddb8850d7aeb612ec9402e86f82c44edf8c96.

* gnu/services/base.scm (<guix-publish-configuration>): Add missing
'configuration' word in getters for 'compression-level' and 'nar-path'.

services: nginx: Use mime.types.

* gnu/service/web.scm (default-nginx-config): Add 'nginx' parameter
and honor it.  Adjust callers.

Merge branch 'master' into staging

services: Add a default value to various service types.

* gnu/services/admin.scm (rottlog-service-type)[default-value]: New
field.
* gnu/services/base.scm (guix-service-type)[default-value]: New field.
(guix-publish-service-type)[default-value]: New field.
* gnu/services/cups.scm (cups-service-type)[default-value]: New field.
* gnu/services/dict.scm (dicod-service-type)[default-value]: New field.
* gnu/services/mcron.scm (mcron-service-type)[default-value]: New field.
* gnu/services/networking.scm (<tor-configuration>)[config-file]: Add
default value.
(tor-service-type)[default-value]: New field.
(<bitlbee-configuration>)[interface, port, extra-settings]: Add default
values.
(bitlbee-service-type)[default-value]: New field.
(wpa-supplicant-service-type)[default-value]: New field.
(tlp-service-type)[default-value]: New field.
(openssh-service-type)[default-value]: New field.
* doc/guix.texi (Base Services, Log Rotation)
(Networking Services, Printing Services):
(Power management Services): Adjust examples accordingly.

Merge branch 'master' into staging

services: tor: Run in a container.

* gnu/services/networking.scm (tor-shepherd-service): Use (gnu build
shepherd) and use 'make-forkexec-constructor/container' instead of
'make-forkexec-constructor'.

services: cuirass: Wait for networking.

* gnu/services/cuirass.scm (cuirass-shepherd-service): Add 'networking'
to 'requirements'.

services: dovecot: Fix passwd and userdb 'args' types.

* gnu/services/mail.scm (passwd-configuration)[args]
(userdb-configuration)[args]: Change type from 'free-form-args' to
'space-separated-string-list'.
* doc/guix.texi (Mail Services): Document it.

doc: Fix typos.

* doc/guix.texi (Build Systems)[ocaml-build-system]: Fix typo.
(Log Rotation)[periodic-rotations]: ditto.
(Database Services)[redis-service-type]: ditto.
(OpenSMTPD Service)[opensmtpd-configuration]: ditto.
(VPN Services)[OpenVPN]: ditto.
(Power management Services)[tlp-configuration]: ditto.
(Git daemon service)[git-daemon-service]: ditto.
(Running GuixSD in a VM): ditto.
* gnu/services/pm.scm (tlp-configuration)[runtime-pm-blacklist]: Fix typo.
* gnu/services/vpn.scm (openvpn-client-configuration)[status]: ditto.

services: dicod: Allow the configuration of "handlers".

* gnu/services/dict.scm (<dicod-configuration>)[handlers]: New field.
(<dicod-handler>): New record type.
(<dicod-database>): Add fields.
(dicod-configuration-file): Support convert handlers and enhanced databases.
configuration to config file.
* doc/guix.texi (Miscellaneous Services): Update accordingly.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

Merge branch 'master' into core-updates