docker: Add dnsmasq and avahi-daemon

dnsmasq and avahi-daemon are needed to test DNS and mDNS.

Signed-off-by: Jukka Rissanen <[email protected]>

Author: jukkar

docker/avahi-daemon.conf

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+# See avahi-daemon.conf(5) for more information on this configuration
+# file!
+# This is specifically tailored for testing mDNS in Zephyr OS.
+
+[server]
+host-name=zephyr
+domain-name=local
+use-ipv4=yes
+use-ipv6=yes
+allow-interfaces=eth0
+enable-dbus=no
+#browse-domains=0pointer.de, zeroconf.org
+#disallow-other-stacks=no
+#allow-point-to-point=no
+#cache-entries-max=4096
+#clients-max=4096
+#objects-per-client-max=1024
+#entries-per-entry-group-max=32
+ratelimit-interval-usec=1000000
+ratelimit-burst=1000
+
+[wide-area]
+enable-wide-area=no
+
+[publish]
+#disable-publishing=yes
+#disable-user-service-publishing=no
+#add-service-cookie=no
+#publish-addresses=yes
+publish-hinfo=no
+publish-workstation=no
+#publish-domain=yes
+#publish-dns-servers=192.168.50.1, 192.168.50.2
+#publish-resolv-conf-dns-servers=yes
+#publish-aaaa-on-ipv4=yes
+#publish-a-on-ipv6=no
+
+[reflector]
+#enable-reflector=no
+#reflect-ipv=no
+
+[rlimits]
+#rlimit-as=
+rlimit-core=0
+rlimit-data=4194304
+rlimit-fsize=0
+rlimit-nofile=768
+rlimit-stack=4194304
+rlimit-nproc=3

docker/avahi-daemon.sh

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+#!/bin/sh
+
+# Kill any other avahi-daemon running in the container. We want to use
+# our configuration.
+killall avahi-daemon
+
+# Disable UDP checksum offloading (this forces the calculation of the checksum)
+ethtool --offload eth0 rx off tx off
+
+avahi-daemon -f /etc/avahi-daemon.conf

docker/dnsmasq.conf

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+# Sample dnsmasq for testing DNS and DHCPv4
+
+interface=eth0
+port=5353
+bind-interfaces
+no-resolv
+
+address=/www.zephyrproject.org/192.0.2.2
+address=/www.zephyrproject.org/2001:db8::2
+
+domain=zephyr.test
+dhcp-range=192.0.2.16,192.0.2.32,1h
+log-dhcp
+
+user=root

docker/dnsmasq.sh

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+#!/bin/sh
+
+dnsmasq -C /etc/dnsmasq.conf