Linux built into the server

Dockerfile

@@ -0,0 +1,27 @@
+FROM debian:buster
+
+RUN apt update
+RUN apt install -y make debootstrap supervisor isc-dhcp-server tftpd-hpa busybox squashfs-tools
+
+# Linux image
+ADD linux /linux
+RUN mkdir -p linux/build && debootstrap buster linux/build/cache
+RUN cd /linux && make
+
+# Files to be served
+ADD files /tftpboot
+RUN cp /linux/build/rootfs/initrd.img /tftpboot/initrd.img && \
+	cp /linux/build/rootfs/vmlinuz /tftpboot/vmlinuz && \
+	mksquashfs /linux/build/rootfs /tftpboot/root.squashfs
+
+# Supervisor
+COPY src/supervisor.conf /supervisor.conf
+
+# DHCP server
+RUN mkdir -p /var/lib/dhcp && touch /var/lib/dhcp/dhcpd.leases
+COPY src/dhcpd.conf /etc/dhcp/dhcpd.conf
+
+COPY src/run.sh /run.sh
+RUN chmod +x /run.sh
+ENV INTERFACE=eth0
+CMD ["/run.sh"]

server/Dockerfile

@@ -1,19 +0,0 @@
-FROM debian:buster
-
-RUN apt update
-RUN apt install -y supervisor
-RUN apt install -y isc-dhcp-server
-RUN apt install -y tftpd-hpa
-RUN apt install -y busybox
-
-# Supervisor
-COPY supervisor.conf /supervisor.conf
-
-# 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"]