Kubernetes build worker

buildman/qemu-coreos/Dockerfile

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+FROM debian
+
+RUN apt-get clean && apt-get update && apt-get install -y \
+  bzip2 \
+  curl \
+  openssh-client \
+  qemu-kvm
+
+ARG channel=stable
+
+RUN curl -s -O http://${channel}.release.core-os.net/amd64-usr/current/coreos_production_qemu_image.img.bz2 && \
+  bzip2 -d coreos_production_qemu_image.img.bz2
+
+RUN apt-get remove -y curl bzip2 && \
+  apt-get clean && \
+  rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+
+COPY start.sh /start.sh
+
+ENTRYPOINT ["/bin/bash", "/start.sh"]

buildman/qemu-coreos/README.md

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+# Builder Image
+
+```
+CHANNEL=stable
+docker build --build-arg channel=${CHANNEL} -t quay.io/quay/quay-builder-qemu-coreos:${CHANNEL} .
+```

buildman/qemu-coreos/start.sh

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+#!/bin/bash
+
+set -e
+set -x
+set -o nounset
+
+mkdir -p /userdata/openstack/latest
+echo "$USERDATA" > /userdata/openstack/latest/user_data
+
+qemu-system-x86_64 \
+        -enable-kvm \
+        -cpu host \
+        -device virtio-9p-pci,fsdev=conf,mount_tag=config-2 \
+        -nographic \
+        -drive if=virtio,file=./coreos_production_qemu_image.img \
+        -fsdev local,id=conf,security_model=none,readonly,path=/userdata \
+        -m "${VM_MEMORY}" \
+        -machine accel=kvm \
+        -net nic,model=virtio \
+        -net user,hostfwd=tcp::2222-:22 \
+        -smp 2