Running the CLI such as with:

./build/oc-netobserv flows --interfaces=br-ex --max-time=10s --log-level=debug --background 

will ignore the "--background" flag when building "options" that is later passed down to the go binary. It seems that only the first arg is taken into account (here: --interfaces=br-ex), and also some of the args that are parsed in a different way (here, --max-time and  --log-level work as well).

If I write instead:

./build/oc-netobserv flows --background  --interfaces=br-ex --max-time=10s --log-level=debug

ie. move --background first, then --background is correctly passed down to the go binary, but --interfaces is not