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* services: Allow modprobe to use "/etc/modprobe.d".Brice Waegeneire2020-04-05
| | | | | | | * gnu/services.scm (%modprobe-wrapper): Set 'MODPROBE_OPTIONS' environment variable. Signed-off-by: Danny Milosavljevic <dannym@scratchpost.org>
* services: Accumulate builds for 'system' entries.Ludovic Courtès2020-04-02
| | | | | | | | That way, more build requests are accumulated when running "guix system build". * gnu/services.scm (system-derivation): Use 'mapm/accumulate-builds' rather than 'sequence'.
* services: Add 'provenance-service-type'.Ludovic Courtès2019-12-07
| | | | | | | | | * gnu/services.scm (object->pretty-string) (channel->code, channel->sexp, provenance-file) (provenance-entry): New procedures. (provenance-service-type): New variable. * gnu/system.scm (operating-system-with-provenance): New procedure. * doc/guix.texi (Service Reference): Document 'provenance-service-type'.
* services: 'fold-services' memoizes service values.Ludovic Courtès2019-11-09
| | | | | | | | | | | | Previously 'fold-services' could end up traversing the same services in the graph several times, which is what this change addresses. The hit rate on the 'add-data-to-store' cache goves from 9% to 8% on "guix system build desktop.tmpl -nd", and the number of lookups in that cache goes from 4458 to 4383. * gnu/services.scm (fold-services): Turn 'loop' into a monadic procedure in %STATE-MONAD and use it to memoize values of visited services.
* remote: Remove '--system' argument.Jakob L. Kreuze2019-08-14
| | | | | | | | * gnu/services.scm (activation-script): Return a <program-file> rather than a <scheme-file>. * gnu/deploy.scm (guix-deploy): Remove handling for '--system'. (show-help): Remove documentation for '--system'. (%default-options): Remove default setting for 'system'.
* services: 'gc-root-service-type' now has a default value.Ludovic Courtès2019-05-10
| | | | * gnu/services.scm (gc-root-service-type)[default-value]: New field.
* services: 'instantiate-missing-services' reaches fixed point.Ludovic Courtès2018-09-07
| | | | | | | | | Fixes a bug whereby services indirectly depended on would not be automatically instantiated. * gnu/services.scm (instantiate-missing-services): Loop back when the length of ADJUSTED is greater than that of INSTANCES. * tests/services.scm ("instantiate-missing-services, indirect"): New test.
* services: boot: Take gexps instead of monadic gexps.Ludovic Courtès2018-06-20
| | | | | | | | | | | | | | | * gnu/services.scm (compute-boot-script): Rename 'mexps' to 'gexps' and remove 'mlet' form. (boot-service-type): Update comment. (cleanup-gexp): Remove 'with-monad' and 'return'. (activation-script): Rewrite in non-monadic style: use 'scheme-file' instead of 'gexp->file'. (gexps->activation-gexp): Remove 'mlet', return a gexp. * gnu/services/shepherd.scm (shepherd-boot-gexp): Remove 'with-monad' and 'return'. * gnu/system.scm (operating-system-boot-script): Remove outdated comment. * gnu/tests/base.scm (%cleanup-os): For 'dirty-service', remove 'with-monad' and 'return'.
* services: Add description to core services.Ludovic Courtès2018-06-20
| | | | | | | | * gnu/services.scm (system-service-type, boot-service-type) (cleanup-service-type, activation-service-type) (special-files-service-type, etc-service-type) (setuid-program-service-type, profile-service-type) (firmware-service-type, gc-root-service-type): Add 'description' field.
* services: cleanup: Expect file names to be UTF-8-encoded.Ludovic Courtès2018-06-20
| | | | | | | | | | Fixes <https://bugs.gnu.org/26353>. Reported by Danny Milosavljevic <dannym@scratchpost.org>. * gnu/services.scm (cleanup-gexp): Add 'setenv' and 'setlocale' calls before 'delete-file-recursively'. * gnu/tests/base.scm (%cleanup-os, %test-cleanup): New variables. (run-cleanup-test): New procedure.
* services: boot: Reverse the order of boot expressions.Ludovic Courtès2018-06-20
| | | | | | * gnu/services.scm (compute-boot-script): Reverse MEXPS. * gnu/system.scm (essential-services): Reverse order of %SHEPHERD-ROOT-SERVICE, %ACTIVATION-SERVICE, and CLEANUP-SERVICE-TYPE.
* discovery: Remove dependency on (guix ui).Ludovic Courtès2018-04-08
| | | | | | | | | | | | | | This reduces the closure of (guix discovery) from 28 to 8 modules. * guix/discovery.scm (scheme-files): Use 'format' instead of 'warning'. (scheme-modules): Add #:warn parameter. Use it instead of 'warn-about-load-error'. (fold-modules): Add #:warn and pass it to 'scheme-modules'. (all-modules): Likewise. * gnu/bootloader.scm (bootloader-modules): Pass #:warn to 'all-modules'. * gnu/packages.scm (fold-packages): Likewise. * gnu/services.scm (all-service-modules): Likewise. * guix/upstream.scm (importer-modules): Likewise.
* gnu: Refactor boot-service-type and activation-service-type.Chris Marusich2018-03-29
| | | | | | | | * gnu/services.scm (boot-service-type) <compose>: Use the "identity" procedure instead of the "append" procedure because it more accurately reflects the intent, which is to simply return the single list of extensions to which fold-services applies the "compose" procedure. (activation-service-type) <compose>: Likewise.
* services: Missing services are automatically instantiated.Ludovic Courtès2018-01-21
| | | | | | | | | | | | | | | | | | | | | | | This simplifies OS configuration: users no longer need to be aware of what a given service depends on. See the discussion at <https://lists.gnu.org/archive/html/guix-devel/2018-01/msg00114.html>. * gnu/services.scm (missing-target-error): New procedure. (service-back-edges): Use it. (instantiate-missing-services): New procedure. * gnu/system.scm (operating-system-services): Call 'instantiate-missing-services'. * tests/services.scm ("instantiate-missing-services") ("instantiate-missing-services, no default value"): New tests. * gnu/services/version-control.scm (cgit-service-type)[extensions]: Add FCGIWRAP-SERVICE-TYPE. * gnu/tests/version-control.scm (%cgit-os): Remove NGINX-SERVICE-TYPE and FCGIWRAP-SERVICE-TYPE instances. * doc/guix.texi (Log Rotation): Remove 'mcron-service-type' in example. (Miscellaneous Services): Remove 'nginx-service-type' and 'fcgiwrap-service-type' in Cgit example.
* services: cleanup: Remove "/run/udev/watch.old" directory.Danny Milosavljevic2017-12-17
| | | | * gnu/services.scm (cleanup-gexp): Remove "/run/udev/watch.old" directory.
* services: Add 'lookup-service-types'.Ludovic Courtès2017-11-08
| | | | | * gnu/services.scm (lookup-service-types): New procedure. * tests/services.scm ("lookup-service-types"): New test.
* services: 'fold-service-types' includes (gnu services).Ludovic Courtès2017-11-08
| | | | | * gnu/services.scm (all-service-modules): New procedure. (fold-service-types): Use it for the default MODULES value.
* services: 'fold-service-types' honors its seed.Ludovic Courtès2017-11-08
| | | | * gnu/services.scm (fold-service-types): Use SEED instead of '().
* gexp: Add 'directory-union'.Ludovic Courtès2017-10-22
| | | | | | * gnu/services.scm (directory-union): Move to... * guix/gexp.scm (directory-union): ... here. New procedure. * doc/guix.texi (G-Expressions): Document it.
* gexp: Add 'file-union'.Ludovic Courtès2017-10-22
| | | | | | * gnu/services.scm (file-union): Move to... * guix/gexp.scm (file-union): ... here. New procedure. * doc/guix.texi (G-Expressions): Document it.
* services: cleanup: Remove Shadow lock files from /etc.Ludovic Courtès2017-10-12
| | | | | | | | Partly fixes <https://bugs.gnu.org/28772>. Reported by Oleg Pykhalov <go.wigust@gmail.com>. * gnu/services.scm (cleanup-gexp): Remove /etc/{passwd,group}.lock and /etc/.pwd.lock.
* services: network-manager: Add support for VPN plug-ins.Ludovic Courtès2017-09-22
| | | | | | | | | | | | * gnu/services.scm (directory-union): Export. * gnu/services/networking.scm (<network-manager-configuration>)[vpn-plugins]: New field. (vpn-plugin-directory, network-manager-environment): New procedure. (network-manager-shepherd-service): Pass #:environment-variables to 'make-forkexec-constructor'. (network-manager-service-type): Add SESSION-ENVIRONMENT-SERVICE-TYPE extension. * doc/guix.texi (Networking Services): Document it.
* services: Add 'fold-service-types'.Ludovic Courtès2017-09-16
| | | | | | * gnu/services.scm (%distro-root-directory, %service-type-path): New variables. (fold-service-types): New procedure.
* services: Add a description and location for each service type.Ludovic Courtès2017-09-16
| | | | | * gnu/services.scm (<service-type>)[description, location]: New field. * doc/guix.texi (Service Types and Services): Document 'description'.
* services: Make error message less scary.Ludovic Courtès2017-07-11
| | | | | * gnu/services.scm (service-back-edges): Show the type name of SERVICE instead of SERVICE in error message.
* ui: Rename '_' to 'G_'.Ludovic Courtès2017-05-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This avoids collisions with '_' when the latter is used as a 'match' pattern for instance. See <https://lists.gnu.org/archive/html/guix-devel/2017-04/msg00464.html>. * guix/ui.scm: Rename '_' to 'G_'. * po/guix/Makevars (XGETTEXT_OPTIONS): Adjust accordingly. * build-aux/compile-all.scm (warnings): Remove 'format'. * gnu/packages.scm, gnu/services.scm, gnu/services/shepherd.scm, gnu/system.scm, gnu/system/shadow.scm, guix/gnupg.scm, guix/http-client.scm, guix/import/cpan.scm, guix/import/elpa.scm, guix/import/pypi.scm, guix/nar.scm, guix/scripts.scm, guix/scripts/archive.scm, guix/scripts/authenticate.scm, guix/scripts/build.scm, guix/scripts/challenge.scm, guix/scripts/container.scm, guix/scripts/container/exec.scm, guix/scripts/copy.scm, guix/scripts/download.scm, guix/scripts/edit.scm, guix/scripts/environment.scm, guix/scripts/gc.scm, guix/scripts/graph.scm, guix/scripts/hash.scm, guix/scripts/import.scm, guix/scripts/import/cpan.scm, guix/scripts/import/cran.scm, guix/scripts/import/crate.scm, guix/scripts/import/elpa.scm, guix/scripts/import/gem.scm, guix/scripts/import/gnu.scm, guix/scripts/import/hackage.scm, guix/scripts/import/nix.scm, guix/scripts/import/pypi.scm, guix/scripts/import/stackage.scm, guix/scripts/lint.scm, guix/scripts/offload.scm, guix/scripts/pack.scm, guix/scripts/package.scm, guix/scripts/perform-download.scm, guix/scripts/publish.scm, guix/scripts/pull.scm, guix/scripts/refresh.scm, guix/scripts/size.scm, guix/scripts/substitute.scm, guix/scripts/system.scm, guix/ssh.scm, guix/upstream.scm: Use 'G_' instead of '_'. Most of this change was obtained by running: "sed -i -e's/(_ "/(G_ "/g' `find -name \*.scm`".
* services: Service types can now specify a default value for instances.Ludovic Courtès2017-04-16
| | | | | | | | | | | | * gnu/services.scm (&no-default-value): New variable. (<service-type>)[default-value]: New field. (<service>): Rename constructor from 'service' to 'make-service'. (service): New macro. (%service-with-default-value): New procedure. (&missing-value-service-error): New error condition. * tests/services.scm ("services, default value"): New test. * doc/guix.texi (Service Types and Services): Document 'default-value'. (Service Reference): Explain default values.
* services: 'service-parameters' becomes 'service-value'.Ludovic Courtès2017-04-16
| | | | | | | | | * gnu/services.scm (<service>)[parameters]: Rename to... [value]: ... this. Change calls to 'service-parameters' to 'service-value'. * gnu/system.scm, gnu/tests/base.scm, guix/scripts/system.scm, tests/services.scm: Likewise. * doc/guix.texi (Service Reference): Adjust accordingly.
* services: Define '%linux-bare-metal-service' using 'simple-service'.Ludovic Courtès2017-04-13
| | | | | * gnu/services.scm (linux-bare-metal-service-type): Remove. (%linux-bare-metal-service): Define in terms of 'simple-service'.
* services: Create /var/log upon activation.Christopher Baines2017-03-10
| | | | | | | | | When launching a container created with guix system container, the attempt to create /var/log/wtmp would fail, as /var/log did not exist. * gnu/services.scm (activation-script): Create /var/log Co-authored-by: Ludovic Courtès <ludo@gnu.org>
* services: Add 'special-files-service-type'.Ludovic Courtès2017-02-08
| | | | | | | | | | | | | * gnu/build/activation.scm (activate-/bin/sh): Remove. (activate-special-files): New procedure. * gnu/services.scm (activation-script): Remove call to 'activate-/bin/sh'. (special-files-service-type): New variable. (extra-special-file): New procedure. * gnu/services/base.scm (%base-services): Add SPECIAL-FILES-SERVICE-TYPE instance. * gnu/tests/base.scm (run-basic-test)[special-files]: New variables. ["special files"]: New test.
* services: Create /var/log/wtmp upon activation.Ludovic Courtès2017-01-24
| | | | | | | | This fixes a bug whereby /var/log/wtmp would never be created, and thus accounting information would be lost. * gnu/services.scm (activation-script): Create /var/log/wtmp. * gnu/tests/base.scm (run-basic-test)["wtmp entry"]: New test.
* services: Create /var/run/utmpx upon activation.Ludovic Courtès2017-01-19
| | | | | | | | This fixes a bug whereby /var/run/utmpx would never be created, and thus accounting information would be missing. * gnu/services.scm (activation-script): Create /var/run/utmpx. * gnu/tests/base.scm (run-basic-test)["utmpx entry"]: New test.
* services: Export 'service-extension' procedures.Christopher Baines2017-01-16
| | | | | | | | | | * gnu/services.scm: Export service-extension-target and service-extension-compute. This allows for greater extensiblity of services by enabling service extensions to be wrapped. For example, the parameters passed to the compute function can be modified, or the return value of the compute function can be modified. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
* services: Activate system prior to services.Christopher Baines2016-12-11
| | | | | | | * gnu/services.scm (activation-script): Move 'activation-current-system' call before (for-each primitive-load …). Signed-off-by: Ludovic Courtès <ludo@gnu.org>
* services: Use 'source-module-closure' for (gnu build activation).Ludovic Courtès2016-09-20
| | | | | * gnu/services.scm (activation-script)[%modules]: Remove. Use 'source-module-closure' instead.
* services: Add 'simple-service'.Ludovic Courtès2016-09-19
| | | | | * gnu/services.scm (simple-service): New procedure. * doc/guix.texi (Service Reference): Document it.
* gnu: Use 'gexp->file' in conjunction with 'with-imported-modules'.Ludovic Courtès2016-07-12
| | | | | | | | | | | * gnu/services.scm (activation-script): Remove code to set '%load-path' and use 'with-imported-modules' instead. (cleanup-gexp): Likewise. * gnu/system/vm.scm (%vm-module-closure): New variable. (expression->derivation-in-linux-vm): Remove #:modules. [loader]: Remove code to set '%load-path'. [builder]: Use %VM-MODULE-CLOSURE. (qemu-image): Use 'with-imported-modules'.
* gnu: Switch to 'with-imported-modules'.Ludovic Courtès2016-07-12
| | | | | | | | | | | | | | | | | | | | | | | | * gnu/services.scm (directory-union): Use 'with-imported-modules' instead of the '#:modules' argument of 'computed-file'. * gnu/services/base.scm (udev-rules-union): Likewise. * gnu/services/dbus.scm (system-service-directory): Likewise. * gnu/services/desktop.scm (wrapped-dbus-service): (polkit-directory): Likewise. * gnu/services/networking.scm (tor-configuration->torrc): Likewise. * gnu/services/xorg.scm (xorg-configuration-directory): Likewise. * gnu/system/install.scm (self-contained-tarball): Likewise. * gnu/system/linux-container.scm (container-script): Likewise. * gnu/system/linux-initrd.scm (expression->initrd): Likewise, and remove #:modules parameter. (flat-linux-module-directory): Use 'with-imported-modules'. (base-initrd): Likewise. * gnu/system/locale.scm (locale-directory): Likewise. * gnu/system/shadow.scm (default-skeletons): Likewise. * gnu/system/vm.scm (expression->derivation-in-linux-vm): Likewise. * gnu/tests/base.scm (run-basic-test): Likewise. * gnu/tests/install.scm (run-install): Likewise. * doc/guix.texi (Initial RAM Disk): Update 'expression->initrd' documentation.
* services: Add 'gc-root-service-type'.Ludovic Courtès2016-06-20
| | | | | * gnu/services.scm (gc-roots->system-entry): New procedure. (gc-root-service-type): New variable.
* doc: Clarify and consolidate modify-services documentation.Chris Marusich2016-03-15
| | | | | | | | | * doc/guix.texi ("Using the Configuration System"): Move the example... ("Service Reference"): ...to here, and clarify more. * gnu/services.scm (modify-services): Update docstring to mention the return type. Co-authored-by: Ludovic Courtès <ludo@gnu.org>
* services: Use 'packages->manifest' in 'packages->profile-entry'.宋文武2016-03-07
| | | | | | | This allows using (PACKAGE OUTPUT) in the packages field. Reported by Jan Nieuwenhuizen <janneke@gnu.org>. * gnu/services.scm (packages->profile-entry): Use 'packages->manifest'.
* file-systems: Spawn a Bournish REPL upon fsck failure.Ludovic Courtès2016-02-08
| | | | | | | | | | | | | Fixes <http://bugs.gnu.org/22588>. Reported by Mark H Weaver <mhw@netris.org>. * gnu/build/file-systems.scm (check-file-system): Pass %BOURNISH-LANGUAGE as the argument to 'start-repl'. * gnu/services.scm (activation-script): Add (guix build bournish). * gnu/services/base.scm (file-system-shepherd-service)[imported-modules]: Likewise. * gnu/system/linux-container.scm (container-script): Likewise. * gnu/system/vm.scm (expression->derivation-in-linux-vm): Likewise.
* services: 'file-union' makes sure each source file exists.Ludovic Courtès2016-02-03
| | | | | | | | | | Before that, specifying an invalid timezone in 'operating-system' would lead to a dangling symlink in the 'etc' directory, which in turn would lead to a kernel panic at boot time. Reported by pizzaiolo on #guix. * gnu/services.scm (file-union): Add 'stat' call for SOURCE.
* services: Rename 'dmd' services to 'shepherd'.Alex Kost2016-01-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * gnu/services/shepherd.scm (dmd-root-service-type, %dmd-root-service) (dmd-service-type, <dmd-service>, dmd-service, dmd-service?) (make-dmd-service, dmd-service-documentation, dmd-service-provision) (dmd-service-requirement, dmd-service-respawn, dmd-service-start) (dmd-service-stop, dmd-service-auto-start?, dmd-service-modules) (dmd-service-imported-modules, dmd-service-file-name, dmd-service-file) (dmd-service-back-edges): Rename to... (shepherd-root-service-type, %shepherd-root-service, shepherd-service-type) (<shepherd-service>, shepherd-service, shepherd-service?) (make-shepherd-service, shepherd-service-documentation) (shepherd-service-provision, shepherd-service-requirement) (shepherd-service-respawn, shepherd-service-start) (shepherd-service-stop, shepherd-service-auto-start?) (shepherd-service-modules, shepherd-service-imported-modules) (shepherd-service-file-name, shepherd-service-file) (shepherd-service-back-edges): ...this * gnu/services.scm: Adjust comments. * gnu/services/avahi.scm (avahi-dmd-service): Rename to... (avahi-shepherd-service): ... this. * gnu/services/base.scm (%root-file-system-dmd-service) (file-system->dmd-service-name, mapped-device->dmd-service-name) (dependency->dmd-service-name, file-system-dmd-service) (mingetty-dmd-service, nscd-dmd-service, guix-dmd-service) (guix-publish-dmd-service, udev-dmd-service, gpm-dmd-service): Rename to... (%root-file-system-shepherd-service) (file-system->shepherd-service-name, mapped-device->shepherd-service-name) (dependency->shepherd-service-name, file-system-shepherd-service) (mingetty-shepherd-service, nscd-shepherd-service, guix-shepherd-service) (guix-publish-shepherd-service, udev-shepherd-service) (gpm-shepherd-service): ... this. * gnu/services/databases.scm (postgresql-dmd-service): Rename to... (postgresql-shepherd-service): ... this. * gnu/services/desktop.scm (upower-dmd-service, elogind-dmd-service): Rename to... (upower-shepherd-service, elogind-shepherd-service): ... this. * gnu/services/dbus.scm (dbus-dmd-service): Rename to... (dbus-shepherd-service): ... this. * gnu/services/lirc.scm (lirc-dmd-service): Rename to... (lirc-shepherd-service): ... this. * gnu/services/mail.scm (dovecot-dmd-service): Rename to... (dovecot-shepherd-service): ... this. * gnu/services/networking.scm (ntp-dmd-service, tor-dmd-service) (bitlbee-dmd-service, wicd-dmd-service, network-manager-dmd-service): Rename to... (dbus-shepherd-service): ... this. * gnu/services/ssh.scm (lsh-dmd-service): Rename to... (lsh-shepherd-service): ... this. * gnu/services/web.scm (nginx-dmd-service): Rename to... (nginx-shepherd-service): ... this. * gnu/services/xorg.scm (slim-dmd-service): Rename to... (slim-shepherd-service): ... this. * gnu/system.scm (essential-services): Use '%shepherd-root-service'. * gnu/system/install.scm (cow-store-service-type): Adjust accordingly. * guix/scripts/system.scm (dmd-service-node-label, dmd-service-node-type) (export-dmd-graph): Likewise. * tests/guix-system.sh: Likewise. * tests/services.scm ("dmd-service-back-edges"): Rename to... ("shepherd-service-back-edges"): Adjust accordingly. * doc/guix.texi: Likewise. * doc/images/service-graph.dot: Use 'shepherd' service name.
* services: cleanup-service: Catch 'system-error' instead of everything.Ludovic Courtès2016-01-06
| | | | | | | | This makes sure that critical errors such as unbound-variable do not go undetected. * gnu/services.scm (cleanup-gexp): Introduce local 'fail-safe' macro and use it. Remove uses of 'false-if-exception'.
* services: Move /tmp cleanup to a separate service.Ludovic Courtès2016-01-05
| | | | | | | | | | * gnu/services.scm (compute-boot-script): Remove /tmp and /var/run deletion code from here. (cleanup-gexp): New procedure with /tmp and /var/run deletion code formerly in 'compute-boot-script'. (cleanup-service-type): New variable. * gnu/system.scm (essential-services): Add an instance of CLEANUP-SERVICE-TYPE.
* services: boot: Reinstate /tmp and /var/run deletion.Ludovic Courtès2016-01-05
| | | | | | | | For some time /tmp and /var/run were not being deleted because 'delete-file-recursively' was unbound. * gnu/services.scm (compute-boot-script)[%modules, modules, compiled]: New variables. Use them to augment the module search path.
* services: Add 'profile-service-type'.Ludovic Courtès2015-11-02
| | | | | | | | | | | * gnu/services.scm (packages->profile-entry): New procedure. (profile-service-type): New variable. * gnu/system.scm (operating-system-directory-base-entries): Remove the "profile" entry. (essential-services): Add a PROFILE-SERVICE-TYPE instance. (operating-system-profile): Rewrite in terms of 'fold-services'. * doc/guix.texi (Service Reference): Add 'profile-service-type'. * doc/images/service-graph.dot: Likewise.
* services: Add 'system-service-type'.Ludovic Courtès2015-11-02
| | | | | | | | | | | | | | | | | | | | | | | * gnu/services.scm (system-derivation): New procedure. (system-service-type): New variable. (boot-script-entry): New procedure. (boot-service-type): Extend SYSTEM-SERVICE-TYPE. (etc-entry): New procedure. (etc-service-type): Extend SYSTEM-SERVICE-TYPE. (fold-services): Change default #:target-type to SYSTEM-SERVICE-TYPE. * gnu/system.scm (operating-system-directory-base-entries): New procedure. (essential-services): Use it. Add an instance of SYSTEM-SERVICE-TYPE. (operating-system-boot-script): Pass #:target-type to 'fold-services'. (operating-system-derivation): Rewrite in terms of 'fold-services'. * gnu/system/linux-container.scm (system-container): Remove. (container-script): Use 'operating-system-derivation'. * guix/scripts/system.scm (export-extension-graph): Replace BOOT-SERVICE-TYPE by SYSTEM-SERVICE-TYPE. * doc/images/service-graph.dot: Add 'system' node and edges. * doc/guix.texi (Service Composition): Mention SYSTEM-SERVICE-TYPE. (Service Reference): Document it. Update 'fold-services' documentation.