[RFC] eal: support systemd service convention for runtime directory

[Bruce Richardson]

On Thu, Dec 23, 2021 at 03:39:07PM -0800, Stephen Hemminger wrote:
> Systemd.exec supports configuring the runtime directory of a service
> via RuntimeDirectory=. This creates the directory with the necessary
> permissions which actual service may not have if running in container.
> 
> The change to DPDK is to look for the environment RUNTIME_DIRECTORY
> first and use that in preference to the fallback alternatives.
> 
> Signed-off-by: Stephen Hemminger <stephen at networkplumber.org>
> ---
>  lib/eal/linux/eal.c | 23 ++++++++++++-----------
>  1 file changed, 12 insertions(+), 11 deletions(-)
> 
Seems reasonable. The path lookup for telemetry in the dpdk-telemetry.py
script will need updating to match this.

Otherwise:

Acked-by: Bruce Richardson <bruce.richardson at intel.com>