dnsmasq provides a container image for running DHCP, proxy DHCP, DNS, and/or TFTP with dnsmasq. Use it to test different network setups with clusters of network bootable machines.
The image bundles undionly.kpxe, ipxe.efi, and grub.efi (experimental) for chainloading BIOS and UEFI clients to iPXE.
Run the container image as a DHCP, DNS, and TFTP service.
sudo docker run --rm --cap-add=NET_ADMIN --net=host quay.io/poseidon/dnsmasq \
-d -q \
--dhcp-range=192.168.1.3,192.168.1.254 \
--enable-tftp --tftp-root=/var/lib/tftpboot \
--dhcp-match=set:bios,option:client-arch,0 \
--dhcp-boot=tag:bios,undionly.kpxe \
--dhcp-match=set:efi32,option:client-arch,6 \
--dhcp-boot=tag:efi32,ipxe.efi \
--dhcp-match=set:efibc,option:client-arch,7 \
--dhcp-boot=tag:efibc,ipxe.efi \
--dhcp-match=set:efi64,option:client-arch,9 \
--dhcp-boot=tag:efi64,ipxe.efi \
--dhcp-userclass=set:ipxe,iPXE \
--dhcp-boot=tag:ipxe,http://matchbox.example.com:8080/boot.ipxe \
--address=/matchbox.example/192.168.1.2 \
--log-queries \
--log-dhcpPress ctrl-C to stop the Docker container.
Configuration arguments can be provided as flags. Check the dnsmasq man pages for a complete list.
| flag | description | example |
|---|---|---|
| --dhcp-range | Enable DHCP, lease given range | 172.18.0.50,172.18.0.99, 192.168.1.1,proxy,255.255.255.0 |
| --dhcp-boot | DHCP next server option | http://matchbox.foo:8080/boot.ipxe |
| --enable-tftp | Enable serving from tftp-root over TFTP | NA |
| --address | IP address for a domain name | /matchbox.foo/172.18.0.2 |
Build a container image locally.
make docker-image
Run the image with Docker on the docker0 bridge (default).
sudo docker run --rm --cap-add=NET_ADMIN poseidon/dnsmasq -d -q