- Usage
sudo docker run -it --rm --net=host -v "$(pwd)/data":/data networkboot/dhcpd eno1
Where eno1 is your interface name.
- To make your interface up with some static parameters, you can type:
sudo ifconfig eno1 192.168.0.200 netmask 255.255.255.0 up
- Reference
- Install Docker with the instructions on https://www.docker.com.
- Run
./build
to create the local docker imagenetworkboot/dhcpd
.
The most common use-case is to provide DHCP service to the host network of
the machine running Docker. For that you need to create a configuration for
the DHCP server, start the container with the --net host
docker run
option and specify the network interface you want to provide DHCP service
on.
- Create
data
folder. - Create
data/dhcpd.conf
with a subnet clause for the specified network interface. If you need assistance, you can rundocker run -it --rm networkboot/dhcpd man dhcpd.conf
for a description of the configuration file syntax. - Run
docker run -it --rm --init --net host -v "$(pwd)/data":/data networkboot/dhcpd eth0
.dhcpd
will automatically start and display its logs on the console. You can press Ctrl-C to terminate the server.
A simple run
script is also included which makes it quick to iterate on a
configuration until you're satisfied.
To use a DHCPv6-Server you have to pass DHCPD_PROTOCOL=6
as enviroment variable
docker run -it --rm --init -e DHCPD_PROTOCOL=6 --net host -v "$(pwd)/data":/data networkboot/dhcpd eth0
The entrypoint script in the docker image takes care of running the DHCP
server as the same user that owns the data
folder. This ensures that the
permissions on the files inside the data
folder is kept consistent. If
the data
folder is owned by root, dhcpd is run as the normal dhcpd user.
If you forget to run the docker container with the --net host
option a
warning will be emitted informing you that you've probably forgotten it.
If a /data
volume is not provided with a dhcpd.conf
inside it, the
container will exit early with an error message.
An additional Dockerfile has been added that allows building an image with
the tag :ldap
which contains the isc-dhcp-server-ldap package in
addition to the normal DHCP server package. Other than that it behaves in
exactly the same way as the :latest
tag. Utility build and run scripts
have also been added to work with this variant.
This image uses the following software components:
- Ubuntu Linux distribution from https://www.ubuntu.com.
- ISC DHCP server from https://www.isc.org/downloads/dhcp/.
- Dumb-init from https://github.com/Yelp/dumb-init.
This project is copyright 2022 Robin Smidsrød [email protected].
It is licensed under the Apache 2.0 license.
See the file LICENSE for full legal details.