v0.2.0 (#50)

Co-authored-by: Tasnim Kabir Sadik <tksadik@omukk.dev>

Reviewed-on: wrenn/wrenn#50

images/build-ubuntu.sh

@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+#
+# build-ubuntu.sh — Build the minimal-ubuntu system base rootfs (template id 0).
+#
+# Usage: bash images/build-ubuntu.sh
+
+set -euo pipefail
+source "$(cd "$(dirname "$0")" && pwd)/build-common.sh"
+
+PREP="set -e
+export DEBIAN_FRONTEND=noninteractive
+apt-get update
+# --no-install-recommends keeps the image lean (avoids pulling systemd-adjacent
+# recommends). The guest never runs systemd: PID 1 is wrenn-init -> tini -> envd.
+apt-get install -y --no-install-recommends socat chrony sudo wget curl ca-certificates git iproute2 hostname tini
+# Remove the stock 'ubuntu' user (uid 1000) shipped by the base image; it is
+# replaced by wrenn-user. Also drop its cloud-init sudoers drop-in.
+userdel -r ubuntu 2>/dev/null || true
+rm -f /etc/sudoers.d/90-cloud-init-users
+useradd -m -s /bin/bash wrenn-user
+${WRENN_SUDOERS_SETUP}
+apt-get clean
+rm -rf /var/lib/apt/lists/*"
+
+build_system_rootfs "ubuntu:26.04" 0 "${PREP}"