Controlled by BALENA_HOST_FIREWALL_MODE, the firewall can
either be 'on' or 'off'.
- In the 'off' state, all traffic is allowed.
- In the 'on' state, only traffic for the core services provided
by Balena is allowed.
Change-type: patch
Signed-off-by: Rich Bayliss <rich@balena.io>
This allows a response to an input with dport=`supevisor api port` and
is required when the host OS is doing stateful firewalling.
This should not affect things when stateful firewalling is not in
effect, as the standard OUTPUT chain policy is ACCEPT, so we're just
being explicit about it.
Change-type: patch
Backport-to: next, current, sunset
Signed-off-by: Cameron Diver <cameron@balena.io>