| Message ID | 20220727221217.1072588-2-arnout@mind.be |
|---|---|
| State | Accepted |
| Headers | show |
| Series | [1/2] docs/manual: introduce "Integration topics" chapter | expand |
Arnout, All, On 2022-07-28 00:12 +0200, Arnout Vandecappelle (Essensium/Mind) spake thusly: > Add a section to the "Integration topics" chapter about how we integrate > systemd. Add a first subsection about how dbus and dbus-broker work with > systemd. > > This is just the start of the integration information about systemd. Thanks! > Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be> Applied to master, thanks. Regards, Yann E. MORIN. > --- > docs/manual/integration-systemd.txt | 27 +++++++++++++++++++++++++++ > docs/manual/integration.txt | 2 ++ > 2 files changed, 29 insertions(+) > create mode 100644 docs/manual/integration-systemd.txt > > diff --git a/docs/manual/integration-systemd.txt b/docs/manual/integration-systemd.txt > new file mode 100644 > index 0000000000..44248b43ff > --- /dev/null > +++ b/docs/manual/integration-systemd.txt > @@ -0,0 +1,27 @@ > +// -*- mode:doc; -*- > +// vim: set syntax=asciidoc: > + > +[[integration-systemd]] > +=== Systemd > + > +This chapter describes the decisions taken in Buildroot's integration of > +systemd, and how various use cases can be implemented. > + > +==== DBus daemon > + > +Systemd requires a DBus daemon. There are two options for it: traditional dbus > +(+BR2_PACKAGE_DBUS+) and bus1 dbus-broker (+BR2_PACKAGE_DBUS_BROKER+). At > +least one of them must be chosen. If both are included in the configuration, > +dbus-broker will be used as system bus, but the traditional dbus-daemon is > +still installed as well and can be used as session bus. Also its tools (e.g. > ++dbus-send+) can be used (systemd itself has +busctl+ as an alternative). In > +addition, the traditional dbus package is the only one that provides +libdbus+, > +which is used by many packages as dbus integration library. > + > +Both in the dbus and in the dbus-broker case, the daemon runs as user +dbus+. > +The DBus configuration files are also identical for both. > + > +To make sure that only one of the two daemons is started as system bus, the > +systemd activation files of the dbus package (+dbus.socket+ and the > ++dbus.service+ symlink in +multi-user.target.wants+) are removed when > +dbus-broker is selected. > diff --git a/docs/manual/integration.txt b/docs/manual/integration.txt > index bdfbfa59de..be56bf6567 100644 > --- a/docs/manual/integration.txt > +++ b/docs/manual/integration.txt > @@ -9,4 +9,6 @@ level. Buildroot is highly configurable, almost everything discussed > here can be changed or overridden by xref:rootfs-custom[rootfs overlay > or custom skeleton] configuration. > > +include::integration-systemd.txt[] > + > include::integration-selinux-support.txt[] > -- > 2.35.3 >
diff --git a/docs/manual/integration-systemd.txt b/docs/manual/integration-systemd.txt new file mode 100644 index 0000000000..44248b43ff --- /dev/null +++ b/docs/manual/integration-systemd.txt @@ -0,0 +1,27 @@ +// -*- mode:doc; -*- +// vim: set syntax=asciidoc: + +[[integration-systemd]] +=== Systemd + +This chapter describes the decisions taken in Buildroot's integration of +systemd, and how various use cases can be implemented. + +==== DBus daemon + +Systemd requires a DBus daemon. There are two options for it: traditional dbus +(+BR2_PACKAGE_DBUS+) and bus1 dbus-broker (+BR2_PACKAGE_DBUS_BROKER+). At +least one of them must be chosen. If both are included in the configuration, +dbus-broker will be used as system bus, but the traditional dbus-daemon is +still installed as well and can be used as session bus. Also its tools (e.g. ++dbus-send+) can be used (systemd itself has +busctl+ as an alternative). In +addition, the traditional dbus package is the only one that provides +libdbus+, +which is used by many packages as dbus integration library. + +Both in the dbus and in the dbus-broker case, the daemon runs as user +dbus+. +The DBus configuration files are also identical for both. + +To make sure that only one of the two daemons is started as system bus, the +systemd activation files of the dbus package (+dbus.socket+ and the ++dbus.service+ symlink in +multi-user.target.wants+) are removed when +dbus-broker is selected. diff --git a/docs/manual/integration.txt b/docs/manual/integration.txt index bdfbfa59de..be56bf6567 100644 --- a/docs/manual/integration.txt +++ b/docs/manual/integration.txt @@ -9,4 +9,6 @@ level. Buildroot is highly configurable, almost everything discussed here can be changed or overridden by xref:rootfs-custom[rootfs overlay or custom skeleton] configuration. +include::integration-systemd.txt[] + include::integration-selinux-support.txt[]
Add a section to the "Integration topics" chapter about how we integrate systemd. Add a first subsection about how dbus and dbus-broker work with systemd. This is just the start of the integration information about systemd. Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be> --- docs/manual/integration-systemd.txt | 27 +++++++++++++++++++++++++++ docs/manual/integration.txt | 2 ++ 2 files changed, 29 insertions(+) create mode 100644 docs/manual/integration-systemd.txt