Grab rootfs tarball from Ubuntu git repo

Dockerfile

@@ -1,32 +1,36 @@
 # syntax=docker/dockerfile:1
 
-FROM alpine:3.19 as rootfs-stage
+FROM alpine:3.20 as rootfs-stage
 
 # environment
 ENV REL=noble
 ENV ARCH=amd64
+ENV TAG=dist-noble-amd64-20240429-0b1b11a0
 
 # install packages
 RUN \
   apk add --no-cache \
     bash \
     curl \
-    gawk \
+    file \
+    git \
     tzdata \
     xz
 
 # grab base tarball
 RUN \
-  BUILD_ID=$(curl -sL https://launchpad.net/~cloud-images-release-managers/+livefs/ubuntu/${REL}/ubuntu-oci | awk -F'(+build|+files)' "/+build/ && /$ARCH/ {print \$2}") &&\
+  git clone --depth=1 https://git.launchpad.net/cloud-images/+oci/ubuntu-base -b ${TAG} /build && \
+  cd /build/oci/blobs/sha256 && \
+  for i in ./*; do if $(file -b $i | grep -q 'gzip'); then TARBALL=$i;fi; done && \
   mkdir /root-out && \
-  curl -o \
-    /rootfs.tar.gz -L \
-    https://launchpad.net/~cloud-images-release-managers/+livefs/ubuntu/${REL}/ubuntu-oci/+build${BUILD_ID}+files/livecd.ubuntu-oci.rootfs.tar.gz && \
   tar xf \
-    /rootfs.tar.gz -C \
+    ${TARBALL} -C \
     /root-out && \
   rm -rf \
-    /root-out/var/log/*
+    /root-out/var/log/* \
+    /root-out/home/ubuntu \
+    /root-out/root/{.ssh,.bashrc,.profile} \
+    /build
 
 # set version for s6 overlay
 ARG S6_OVERLAY_VERSION="3.1.6.2"
@@ -132,6 +136,7 @@ RUN \
     /defaults \
     /lsiopy && \
   echo "**** cleanup ****" && \
+  userdel ubuntu && \
   apt-get autoremove && \
   apt-get clean && \
   rm -rf \

Dockerfile.aarch64

@@ -5,28 +5,32 @@ FROM alpine:3.19 as rootfs-stage
 # environment
 ENV REL=noble
 ENV ARCH=arm64
+ENV TAG=dist-noble-arm64v8-20240429-4129f303
 
 # install packages
 RUN \
-  apk add --no-cache \
-    bash \
-    curl \
-    gawk \
-    tzdata \
-    xz
+apk add --no-cache \
+bash \
+curl \
+file \
+git \
+tzdata \
+xz
 
 # grab base tarball
 RUN \
-  BUILD_ID=$(curl -sL https://launchpad.net/~cloud-images-release-managers/+livefs/ubuntu/${REL}/ubuntu-oci | awk -F'(+build|+files)' "/+build/ && /$ARCH/ {print \$2}") &&\
+  git clone --depth=1 https://git.launchpad.net/cloud-images/+oci/ubuntu-base -b ${TAG} /build && \
+  cd /build/oci/blobs/sha256 && \
+  for i in ./*; do if $(file -b $i | grep -q 'gzip'); then TARBALL=$i;fi; done && \
   mkdir /root-out && \
-  curl -o \
-    /rootfs.tar.gz -L \
-    https://launchpad.net/~cloud-images-release-managers/+livefs/ubuntu/${REL}/ubuntu-oci/+build${BUILD_ID}+files/livecd.ubuntu-oci.rootfs.tar.gz && \
   tar xf \
-    /rootfs.tar.gz -C \
+    ${TARBALL} -C \
     /root-out && \
   rm -rf \
-    /root-out/var/log/*
+    /root-out/var/log/* \
+    /root-out/home/ubuntu \
+    /root-out/root/{.ssh,.bashrc,.profile} \
+    /build
 
 # set version for s6 overlay
 ARG S6_OVERLAY_VERSION="3.1.6.2"
@@ -137,6 +141,7 @@ RUN \
     "https://lsio-ci.ams3.digitaloceanspaces.com/qemu-aarch64-static" && \
   chmod +x /usr/bin/qemu-aarch64-static && \
   echo "**** cleanup ****" && \
+  userdel ubuntu && \
   apt-get autoremove && \
   apt-get clean && \
   rm -rf \