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nginx-proxy-avahi-helper

A docker container to generate mDNS CNAME entries for the virtual hosts used by jwilder/nginx-proxy.

The virtual hosts are held in the VIRTUAL_HOST Env Var of the proxied container.

Installing

docker pull hardillb/nginx-proxy-avahi-helper

Currently there are AMD64 and ARM64 based builds.

Running

To work this needs the following 2 volumes mounting:

-v /var/run/docker.sock:/tmp/docker.sock

This allows the container to monitor docker

-v /run/dbus/system_bus_socket:/run/dbus/system_bus_socket

And this allows the container to send d-bus commands to the host OS's Avahi daemon

docker run -d -v /var/run/docker.sock:/tmp/docker.sock -v /run/dbus/system_bus_socket:/run/dbus/system_bus_socket hardillb/nginx-proxy-avahi-helper

AppArmor

If you are running on system with AppArmor installed you may get errors about not being able to send d-bus messages. To fix this add --privileged to the command line.

This is a temp workaround until I can work out a suitable policy to apply.

Acknowledgment

This uses and borrows heavily from mdns-publisher