[ovs-dev] [PATCH v2] ovs-ctl: Allow recording hostname separately

[Ilya Maximets]

On 2/25/21 4:28 PM, Frode Nordahl wrote:
> ovs-ctl determines the system FQDN or hostname and records it in
> the `external-ids:hostname` field of the `Open-vSwitch` table on
> system startup if it is not already set.
> 
> This value may be consumed by downstream software and having it
> unset or set to a incorrect value could lead to erratic behavior
> of a system.
> 
> When a system is configured to use an Open vSwitch controlled
> datapath as its only network connection, the current ordering of
> events would always record a unreliable hostname.
> 
> To tackle this problem this patchs adds an optional argument that
> allows starting Open vSwitch without recording the hostname in
> the database as well as a new ctl command to record the hostname
> separately. This command can be called by the system startup
> scripts when the system is ready to collect and record this
> information.
> 
> Reported-At: https://bugs.launchpad.net/bugs/1915829
> Signed-off-by: Frode Nordahl <frode.nordahl at canonical.com>
> ---
>  utilities/ovs-ctl.in | 41 +++++++++++++++++++++++++++--------------
>  1 file changed, 27 insertions(+), 14 deletions(-)

Thanks!
I added a note to the NEWS file and applied to master.

We may consider backports down to 2.13 LTS.  Let me know
if it's needed.

Best regards, Ilya Maximets.