Add scripts to generate virtual images with Debian

The script make-base downloads and installs Debian Buster in a backing
image which is then used by make-arbiter and make-student to create
derived images with specific configurations.

1 files changed, 42 insertions, 0 deletions

diff --git a/kpov_judge/scripts/make-student.sh b/kpov_judge/scripts/make-student.sh
new file mode 100755
index 0000000..f072b47
--- /dev/null
+++ b/kpov_judge/scripts/make-student.sh
@@ -0,0 +1,42 @@
+#!/bin/sh
+
+# Create the disk image for a basic terminal computer with sshd.
+# Typical virtual‐machine network interfaces are configured for DHCP.
+
+set -e
+
+if [ $# -lt 1 ]; then
+        echo "usage: ${0} base"
+        exit 1
+fi
+
+base="${1}"
+name="student"
+format="qcow2"
+
+file_interfaces=\
+'# see interfaces(5)
+source /etc/network/interfaces.d/*
+
+# loopback interface
+auto lo
+iface lo inet loopback
+
+# first interface
+allow-hotplug ens3
+iface ens3 inet dhcp
+allow-hotplug enp0s3
+iface enp0s3 inet dhcp
+'
+
+qemu-img create -f qcow2 -b "${base}" "${name}.${format}"
+
+virt-customize -a "${name}.${format}" \
+	--hostname "${name}" \
+	--update \
+	--install openssh-server \
+	--write /etc/network/interfaces:"${file_interfaces}"
+
+#virt-sparsify "${name}.${format}" "${name}x.${format}"
+#qemu-img create -f "${format}" -b "${name}x.${format}" "${name}-diff.${format}"
+#qemu-img rebase -b "${base}" "${name}-diff.${format}"