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Last pushed: 2 years ago
Short Description
Avahi mdns bonjour zeroconf with CoreOS cloud-init
Full Description

github repository: ianblenke/docker-avahi

docker hub image: ianblenke/avahi

This enables mdns broadcasting of dbus discovered resources.

Usage:

Run this with /var/run/dbus mounted for dbus:

docker run -d -v /var/run/dbus:/var/run/dbus ianblenke/avahi

This will broadcast the docker host's $(hostname).local to the local segments, along with resource records for the services discovered on dbus.

You will likely need to add a dbus policy to allow org.freedesktop.Avahi to be owned on the underlying host:

cat <<EOF > /etc/dbus-1/system.d/avahi.conf
<!DOCTYPE busconfig PUBLIC
"-//freedesktop//DTD D-Bus Bus Configuration 1.0//EN"
"http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">
<busconfig>
    <policy user="root">
        <allow own="org.freedesktop.Avahi"/>
    </policy>
</busconfig>
EOF

If you are using CoreOS, you can use the supplied avahi.cloud-init like this:

wget -O /tmp/avahi.cloud-init https://raw.githubusercontent.com/ianblenke/docker-avahi/master/avahi.cloud-init
sudo coreos-cloudinit -from-file /tmp/avahi.cloud-init

Or just tack this on to your boot time cloud-init.

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ianblenke
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