Scripts to build OpenStack/KVM image

scripts/images/openstack/.dockerignore

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+dist

scripts/images/openstack/Dockerfile.dapper

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+FROM debian:jessie
+RUN apt-get update && \
+    apt-get install --no-install-recommends -y qemu-kvm qemu-utils curl ca-certificates
+RUN mkdir -p /source/assets
+
+# Change here to build a specific version
+ENV VERSION latest
+
+RUN curl -fL https://releases.rancher.com/os/${VERSION}/rancheros.iso > /source/assets/rancheros.iso
+CMD ["/source/scripts/build.sh"]
+
+ENV DAPPER_RUN_ARGS --device /dev/kvm
+ENV DAPPER_OUTPUT dist

scripts/images/openstack/README.md

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+OpenStack Image
+===============
+
+Build by running `dapper` in this folder and the build will produce `./dist/rancheros-openstack.img`.  The image produced works with "Configuration Drive" to obtain userdata.
+
+KVM
+===
+
+This build requires a host capable of KVM.  If you don't have KVM then remove `ENV DAPPER_RUN_ARGS --device /dev/kvm` from `Dockerfile.dapper`, but it will run very slow.

scripts/images/openstack/scripts/build.sh

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+#!/bin/bash
+set -e
+
+cd $(dirname $0)/..
+
+mkdir -p {dist,build/openstack/latest}
+
+cat > build/openstack/latest/user_data << EOF
+#!/bin/bash
+set -e
+
+trap "poweroff" EXIT
+
+mount -t 9p -o trans=virtio,version=9p2000.L config-2 /mnt
+
+touch log
+openvt -s -- tail -f log &
+ros install -d /dev/vda -f --no-reboot >log 2>&1
+
+touch /mnt/success
+EOF
+
+rm -f build/{success,hd.img}
+qemu-img create -f qcow2 build/hd.img 8G
+kvm -curses \
+    -drive if=virtio,file=build/hd.img \
+    -cdrom assets/rancheros.iso \
+    -m 1024 \
+    -fsdev local,id=conf,security_model=none,path=$(pwd)/build \
+    -device virtio-9p-pci,fsdev=conf,mount_tag=config-2
+
+[ -f build/success ]
+
+echo Converting dist/rancheros-openstack.img
+qemu-img convert -c -O qcow2 build/hd.img dist/rancheros-openstack.img