Basic DHCP server container

dhcp/Dockerfile

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+FROM debian:buster
+RUN apt update && apt install -y isc-dhcp-server
+RUN mkdir -p /var/lib/dhcp && touch /var/lib/dhcp/dhcpd.leases
+COPY dhcpd.conf /etc/dhcp/dhcpd.conf
+COPY run.sh /run.sh
+RUN chmod +x /run.sh
+ENV INTERFACE=eth0
+CMD ["/run.sh"]

dhcp/dhcpd.conf

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+# /etc/dhcp/dhcpd.conf
+
+default-lease-time 600;
+max-lease-time 7200;
+
+subnet 192.168.14.0 netmask 255.255.255.0 {
+range 192.168.14.10 192.168.14.250;
+}

dhcp/run.sh

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+#!/bin/bash
+set -e
+ip addr flush dev $INTERFACE
+ip addr add 192.168.14.2/24 dev $INTERFACE
+ip link set dev $INTERFACE up
+dhcpd -d --no-pid $INTERFACE