1 FROM ubuntu:22.04 as ubuntu_jammy
3 LABEL Description="ubuntu intermediate image"
7 && apt install -y wget genisoimage syslinux-common \
8 && mkdir -p /var/lib/tftpboot/grub \
9 && mkdir -p /var/lib/tftpboot/casper/ubuntu-focal-amd64/ \
10 && mkdir -p /var/lib/tftpboot/casper/ubuntu-focal-arm64/ \
11 && mkdir -p /var/lib/tftpboot/casper/ubuntu-jammy-amd64/ \
12 && mkdir -p /var/lib/tftpboot/casper/ubuntu-jammy-arm64/
14 ENV ISO_FOCAL_AMD64 https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso
15 ENV ISO_FOCAL_ARM64 https://cdimage.ubuntu.com/releases/20.04/release/ubuntu-20.04.4-live-server-arm64.iso
16 ENV EFI_FOCAL_AMD64 http://archive.ubuntu.com/ubuntu/dists/focal/main/uefi/grub2-amd64/current/grubnetx64.efi.signed
17 ENV EFI_FOCAL_ARM64 http://ports.ubuntu.com/ubuntu-ports/dists/focal/main/uefi/grub2-arm64/current/grubnetaa64.efi.signed
19 ENV ISO_JAMMY_AMD64 https://releases.ubuntu.com/22.04/ubuntu-22.04-live-server-amd64.iso
20 ENV ISO_JAMMY_ARM64 https://cdimage.ubuntu.com/releases/22.04/release/ubuntu-22.04-live-server-arm64.iso
21 ENV EFI_JAMMY_AMD64 http://archive.ubuntu.com/ubuntu/dists/focal/main/uefi/grub2-amd64/current/grubnetx64.efi.signed
22 ENV EFI_JAMMY_ARM64 http://ports.ubuntu.com/ubuntu-ports/dists/focal/main/uefi/grub2-arm64/current/grubnetaa64.efi.signed
24 RUN echo "Preparing Grub EFI Binary" \
25 && wget $EFI_JAMMY_AMD64 -O /var/lib/tftpboot/grub/grubnetx64.efi.signed \
26 && wget $EFI_JAMMY_ARM64 -O /var/lib/tftpboot/grub/grubnetaa64.efi.signed
28 RUN echo "Preparing Casper Kernel" \
29 && wget $ISO_FOCAL_AMD64 -O /ubuntu-20.04.4-live-server-amd64.iso \
30 && isoinfo -i /ubuntu-20.04.4-live-server-amd64.iso -x "/CASPER/INITRD.;1" > /var/lib/tftpboot/casper/ubuntu-focal-amd64/initrd \
31 && isoinfo -i /ubuntu-20.04.4-live-server-amd64.iso -x "/CASPER/VMLINUZ.;1" > /var/lib/tftpboot/casper/ubuntu-focal-amd64/vmlinuz\
32 && wget $ISO_FOCAL_ARM64 -O /ubuntu-20.04.4-live-server-arm64.iso \
33 && isoinfo -i /ubuntu-20.04.4-live-server-arm64.iso -x "/CASPER/INITRD.;1" > /var/lib/tftpboot/casper/ubuntu-focal-arm64/initrd \
34 && isoinfo -i /ubuntu-20.04.4-live-server-arm64.iso -x "/CASPER/VMLINUZ.;1" > /var/lib/tftpboot/casper/ubuntu-focal-arm64/vmlinuz \
35 && wget $ISO_JAMMY_AMD64 -O /ubuntu-22.04-live-server-amd64.iso \
36 && isoinfo -i /ubuntu-22.04-live-server-amd64.iso -x "/CASPER/INITRD.;1" > /var/lib/tftpboot/casper/ubuntu-jammy-amd64/initrd \
37 && isoinfo -i /ubuntu-22.04-live-server-amd64.iso -x "/CASPER/VMLINUZ.;1" > /var/lib/tftpboot/casper/ubuntu-jammy-amd64/vmlinuz\
38 && wget $ISO_JAMMY_ARM64 -O /ubuntu-22.04-live-server-arm64.iso \
39 && isoinfo -i /ubuntu-22.04-live-server-arm64.iso -x "/CASPER/INITRD.;1" > /var/lib/tftpboot/casper/ubuntu-jammy-arm64/initrd \
40 && isoinfo -i /ubuntu-22.04-live-server-arm64.iso -x "/CASPER/VMLINUZ.;1" > /var/lib/tftpboot/casper/ubuntu-jammy-arm64/vmlinuz
44 LABEL Description="dnsmasq service image"
47 RUN apk add --update --no-cache dnsmasq \
48 && rm -rf /var/cache/apk/*
50 # Extract installer from previous image.
51 COPY --from=ubuntu_jammy /var/lib/tftpboot /var/lib/tftpboot
54 COPY tftpboot/ /var/lib/tftpboot/
59 # Start dnsmasq. It picks up default configuration from /etc/dnsmasq.conf and
60 # /etc/default/dnsmasq plus any command line switch
61 ENTRYPOINT ["sh","-c","dnsmasq","--interface=$E_INT","--listen-address=$E_ADD"]