fdio.infra.pxe/docker-dnsmasq/Dockerfile

   1 FROM ubuntu:20.04 as ubuntu_focal
   2
   3 LABEL Description="ubuntu intermediate image"
   4 LABEL Version="2.0"
   5
   6 RUN apt update \
   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
  12 ENV ISO_FOCAL_AMD64 https://releases.ubuntu.com/20.04.2/ubuntu-20.04.2-live-server-amd64.iso
  13 ENV ISO_FOCAL_ARM64 https://cdimage.ubuntu.com/releases/20.04/release/ubuntu-20.04.2-live-server-arm64.iso
  14 ENV EFI_FOCAL_AMD64 http://archive.ubuntu.com/ubuntu/dists/focal/main/uefi/grub2-amd64/current/grubnetx64.efi.signed
  15 ENV EFI_FOCAL_ARM64 http://ports.ubuntu.com/ubuntu-ports/dists/focal/main/uefi/grub2-arm64/current/grubnetaa64.efi.signed
  16
  17 RUN echo "Preparing Grub EFI Binary" \
  18  && wget $EFI_FOCAL_AMD64 -O /var/lib/tftpboot/grub/grubnetx64.efi.signed \
  19  && wget $EFI_FOCAL_ARM64 -O /var/lib/tftpboot/grub/grubnetaa64.efi.signed
  20
  21 RUN echo "Preparing Casper Kernel" \
  22  && wget $ISO_FOCAL_AMD64 -O /ubuntu-20.04.2-live-server-amd64.iso \
  23  && isoinfo -i /ubuntu-20.04.2-live-server-amd64.iso -x "/CASPER/INITRD.;1" > /var/lib/tftpboot/casper/ubuntu-focal-amd64/initrd \
  24  && isoinfo -i /ubuntu-20.04.2-live-server-amd64.iso -x "/CASPER/VMLINUZ.;1" > /var/lib/tftpboot/casper/ubuntu-focal-amd64/vmlinuz\
  25  && wget $ISO_FOCAL_ARM64 -O /ubuntu-20.04.2-live-server-arm64.iso \
  26  && isoinfo -i /ubuntu-20.04.2-live-server-arm64.iso -x "/CASPER/INITRD.;1" > /var/lib/tftpboot/casper/ubuntu-focal-arm64/initrd \
  27  && isoinfo -i /ubuntu-20.04.2-live-server-arm64.iso -x "/CASPER/VMLINUZ.;1" > /var/lib/tftpboot/casper/ubuntu-focal-arm64/vmlinuz
  28
  29
  30 FROM alpine
  31
  32 LABEL Description="dnsmasq service image"
  33 LABEL Version="2.0"
  34
  35 RUN apk add --update --no-cache dnsmasq \
  36  && rm -rf /var/cache/apk/*
  37
  38 # Extract installer from previous image.
  39 COPY --from=ubuntu_focal /var/lib/tftpboot /var/lib/tftpboot
  40
  41 # Configure PXE.
  42 COPY tftpboot/ /var/lib/tftpboot/
  43
  44 # Configure DNSMASQ.
  45 COPY etc/ /etc/
  46
  47 # Start dnsmasq. It picks up default configuration from /etc/dnsmasq.conf and
  48 # /etc/default/dnsmasq plus any command line switch
  49 ENTRYPOINT ["sh","-c","dnsmasq","--interface=$E_INT","--listen-address=$E_ADD"]