Add Ubuntu based isogen

CR made over debian-isogen for minimizing size and diff
Late, it should move to "ubuntu-isogen" folder

Change-Id: I44e9e55a1fa51e5ebba9ea80f189d793584ec646

debian-isogen/Dockerfile

@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-ARG FROM=debian:stable
+ARG FROM=ubuntu:latest
 
 FROM ${FROM}
 

debian-isogen/Makefile

@@ -22,7 +22,7 @@ IMAGE_NAME        ?= isogen
 DOCKER_REGISTRY   ?= quay.io
 IMAGE_PREFIX      ?= airshipit
 IMAGE_TAG         ?= latest
-DISTRO            ?= debian_stable
+DISTRO            ?= ubuntu_focal
 IMAGE             := ${DOCKER_REGISTRY}/${IMAGE_PREFIX}/${IMAGE_NAME}:${IMAGE_TAG}-${DISTRO}
 SH_TO_CHECK       := $(wildcard files/*.sh )
 PROXY             ?= http://proxy.foo.com:8000

debian-isogen/files/build.sh

@@ -25,8 +25,6 @@ _debootstrap
 
 chroot "${CHROOT}" < "${BASEDIR}/packages_install.sh"
 
-_use_ubuntu_net_device_names
-
 mkdir -p "${CLOUD_DATA_LATEST}"
 cp "${BASEDIR}/meta_data.json" "${CLOUD_DATA_LATEST}"
 cp "${USER_DATA}" "${CLOUD_DATA_LATEST}/user_data"

debian-isogen/files/functions.sh

@@ -18,19 +18,11 @@ function _debootstrap (){
   debootstrap \
     --arch=amd64 \
     --variant=minbase \
-    buster \
+    --foreign \
+    focal \
     "${HOME}"/LIVE_BOOT/chroot \
-    http://ftp.debian.org/debian/
-}
-
-function _use_ubuntu_net_device_names (){
-# this prioritizes the path policy over slot
-# giving ubuntu compatible interface names
-  cat <<EOF>"${HOME}"/LIVE_BOOT/chroot/usr/lib/systemd/network/99-default.link
-[Link]
-NamePolicy=kernel database onboard path slot
-MACAddressPolicy=persistent
-EOF
+    http://archive.ubuntu.com/ubuntu/
+  chroot "${HOME}"/LIVE_BOOT/chroot /debootstrap/debootstrap --second-stage
 }
 
 function _make_kernel(){
@@ -49,7 +41,7 @@ function _make_kernel(){
 function _grub_install (){
   cp /builder/grub.conf "${HOME}"/LIVE_BOOT/scratch/grub.cfg
 
-  touch "${HOME}/LIVE_BOOT/image/DEBIAN_CUSTOM"
+  touch "${HOME}/LIVE_BOOT/image/UBUNTU_FOCAL_CUSTOM"
 
   grub-mkstandalone \
     --format=i386-pc \
@@ -79,14 +71,14 @@ function _make_iso(){
         -boot-load-size 4 \
         -boot-info-table \
         --eltorito-catalog boot/grub/boot.cat \
-    -output "/config/debian-custom.iso" \
+    -output "/config/ubuntu-focal.iso" \
     -graft-points \
         "${HOME}/LIVE_BOOT/image" \
         /boot/grub/bios.img="${HOME}/LIVE_BOOT/scratch/bios.img"
 }
 
 function _make_metadata(){
-  echo "bootImagePath: ${2:?}/debian-custom.iso" > "${1:?}"
+  echo "bootImagePath: ${2:?}/ubuntu-focal.iso" > "${1:?}"
 }
 
 function _check_input_data_set_vars(){

debian-isogen/files/grub.conf

@@ -1,11 +1,11 @@
-search --set=root --file /DEBIAN_CUSTOM
+search --set=root --file /UBUNTU_FOCAL_CUSTOM
 
 insmod all_video
 
 set default="0"
 set timeout=1
 
-menuentry "Debian Live" {
+menuentry "Ubuntu Focal Live" {
     linux /vmlinuz boot=live nomodeset ip=frommedia gfxpayload=text overlay-size=70% cpu_init_udelay=10000 console=ttyS0,115200 verbose
     initrd /initrd
 }

debian-isogen/files/packages_install.sh

@@ -14,12 +14,12 @@
 # limitations under the License.
 
 set -xe
-echo "debian-live" > /etc/hostname
+echo "ubuntu-live" > /etc/hostname
 echo "127.0.0.1 localhost" > /etc/hosts
+echo "deb http://archive.ubuntu.com/ubuntu focal universe" >> /etc/apt/sources.list
 apt-get update && apt-get install  -y --no-install-recommends \
-   linux-image-amd64 \
+   linux-generic \
    live-boot \
-   cloud-init \
    systemd-sysv \
    apt-transport-https \
    openssh-server \
@@ -30,10 +30,20 @@ apt-get update && apt-get install  -y --no-install-recommends \
    bridge-utils \
    tcpdump \
    iputils-ping \
-   vlan
+   vlan \
+   locales \
+   lsb-release \
+   ebtables
 
 # ensure we support bonding and 802.1q
 echo 'bonding' >> /etc/modules
 echo '8021q' >> /etc/modules
 
+locale-gen en_US.UTF-8
+systemctl enable systemd-networkd
+echo 'br_netfilter' >> /etc/modules
+
+apt-get install  -y --no-install-recommends \
+   cloud-init
+
 rm -rf /var/lib/apt/lists/*