add yamls and mods to accept various images

scripts/build

@@ -5,19 +5,13 @@ set -exu
 apt-get update
 apt-get install -y \
   curl \
-  bzip2 \
   openssh-client \
   qemu-kvm
 
-URL="http://${CL_CHANNEL}.release.core-os.net/amd64-usr/${CL_VERSION}/coreos_production_qemu_image.img.bz2"
-echo "Downloading Container Linux $CL_CHANNEL $CL_VERSION $URL"
-curl -O $URL
-bzip2 -d coreos_production_qemu_image.img.bz2
-
 curl -L https://github.com/coreos/container-linux-config-transpiler/releases/download/v0.3.0/ct-v0.3.0-x86_64-unknown-linux-gnu -o ct
 chmod +x ct
 
 apt-get remove -y curl bzip2
 apt-get autoremove -y
 apt-get clean
-rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*

scripts/start

@@ -1,11 +1,12 @@
 #!/usr/bin/env bash
 set -eox pipefail
 
-VM_NAME="${VM_NAME:-coreos-kvm}"
+VM_NAME="${VM_NAME:-k8s-kvm}"
 VM_MEMORY="${VM_MEMORY:-4G}"
-VM_DISK_SIZE="${VM_DISK_SIZE:-12G}"
 # hostfwd=[tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport
 HOSTFWD="${HOSTFWD:-hostfwd=tcp::2222-:22}"
+DISK_IMG="${DISK_IMG:-./coreos_production_qemu_image.img}"
+CD_ARG=""
 
 if [ -n "${CLOUD_CONFIG_FILE}" ]; then
   echo "Setting cloud config file: ${CLOUD_CONFIG_FILE}"
@@ -32,7 +33,9 @@ if [ -n "$CONFIG_FILE" ]; then
   set -- -fw_cfg name=opt/com.coreos/config,file="${PWD}/ignition.json" "$@"
 fi
 
-qemu-img resize ./coreos_production_qemu_image.img "${VM_DISK_SIZE}"
+if [ -n "$CD_IMG" ]; then
+  CD_ARG="-drive file=${CD_IMG},media=cdrom"
+fi
 
 # https://alpha.release.core-os.net/amd64-usr/current/coreos_production_qemu.sh
 qemu-system-x86_64 \
@@ -40,10 +43,12 @@ qemu-system-x86_64 \
   -enable-kvm \
   -cpu host \
   -m "${VM_MEMORY}" \
-  -net nic,model=virtio \
-  -net user,"${HOSTFWD}",hostname="${VM_NAME}" \
-  -drive if=virtio,file=./coreos_production_qemu_image.img \
+  -device virtio-net,netdev=vmnic \
+  -netdev user,id=vmnic,"${HOSTFWD}",hostname="${VM_NAME}" \
+  -drive if=virtio,file="${DISK_IMG}" \
+  ${CD_ARG} \
   -nographic \
   -machine accel=kvm \
+  -vga std \
   -smp 2 \
-  "$@"
+  $@