diff options
| author | Michal Sekletar <msekleta@redhat.com> | 2016-04-08 13:22:54 +0200 |
|---|---|---|
| committer | Michal Sekletar <msekleta@redhat.com> | 2016-04-11 16:43:16 +0200 |
| commit | e01ff70a77e781734e1e73a2238af2e9bf7967a8 (patch) | |
| tree | 8235651af0b93081b1db89026bdbc061540263ee /man/systemd-nspawn.xml | |
| parent | 710a8858a930a13da8dabbba61d64eb8f420b448 (diff) | |
nspawn: always setup machine id
We check /etc/machine-id of the container and if it is already populated
we use value from there, possibly ignoring value of --uuid option from
the command line. When dealing with R/O image we setup transient machine
id.
Once we determined machine id of the container, we use this value for
registration with systemd-machined and we also export it via
container_uuid environment variable.
As registration with systemd-machined is done by the main nspawn process
we communicate container machine id established by setup_machine_id from
outer child to the main process by unix domain socket. Similarly to PID
of inner child.
Diffstat (limited to 'man/systemd-nspawn.xml')
| -rw-r--r-- | man/systemd-nspawn.xml | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/man/systemd-nspawn.xml b/man/systemd-nspawn.xml index 7e87865ba8..3f3bd38900 100644 --- a/man/systemd-nspawn.xml +++ b/man/systemd-nspawn.xml @@ -355,7 +355,9 @@ <listitem><para>Set the specified UUID for the container. The init system will initialize <filename>/etc/machine-id</filename> from this if this file is - not set yet. </para></listitem> + not set yet. Note that this option takes effect only if + <filename>/etc/machine-id</filename> in the container is + unpopulated.</para></listitem> </varlistentry> <varlistentry> |