make qcow images customizable, and build one for Digital Ocean

Signed-off-by: Sven Dowideit <SvenDowideit@home.org.au>

scripts/images/openstack/Dockerfile.dapper

@@ -12,3 +12,4 @@ CMD ["/source/scripts/build.sh"]
 
 ENV DAPPER_RUN_ARGS --device /dev/kvm
 ENV DAPPER_OUTPUT dist
+ENV DAPPER_ENV APPEND NAME

scripts/images/openstack/scripts/build.sh

@@ -1,10 +1,15 @@
 #!/bin/bash
-set -e
+set -ex
 
 cd $(dirname $0)/..
 
 mkdir -p {dist,build/openstack/latest}
 
+if [ "$APPEND" != "" ]; then
+    echo "--append ${APPEND}"
+    APPEND_PARAM="--append \"${APPEND}\""
+fi
+
 cat > build/openstack/latest/user_data << EOF
 #!/bin/bash
 set -e
@@ -16,7 +21,11 @@ mount -t 9p -o trans=virtio,version=9p2000.L config-2 /mnt
 touch log
 sleep 5
 openvt -s -- tail -f log &
-ros install -d /dev/vda -f --no-reboot >log 2>&1
+ros install \
+    -d /dev/vda \
+    ${APPEND_PARAM} \
+    -f \
+    --no-reboot >log 2>&1
 
 touch /mnt/success
 EOF
@@ -32,5 +41,5 @@ kvm -curses \
 
 [ -f build/success ]
 
-echo Converting dist/rancheros-openstack.img
-qemu-img convert -c -O qcow2 build/hd.img dist/rancheros-openstack.img
+echo Converting dist/rancheros-${NAME}.img
+qemu-img convert -c -O qcow2 build/hd.img dist/rancheros-${NAME}.img