Save service image URL properly

Put the image name in a file for retrieval by jobs that
need it so they don't have to play (buggy) tricks with
git to get it.  Also ensure that debootstrap is installed.

Depends-on: https://review.openstack.org/623551
Closes-bug: #1807969
Change-Id: I6dfeb5fb236579aa1755c6806f9ffc397690fba6

bin/manila-image-create

@@ -160,16 +160,16 @@ is_installed() {
 need_required_packages() {
     case "$platform" in
         "ubuntu")
-            package_list="qemu kpartx"
+            package_list="qemu kpartx debootstrap"
             ;;
         "fedora")
-            package_list="qemu-img kpartx"
+            package_list="qemu-img kpartx debootstrap"
             ;;
         "opensuse")
-            package_list="qemu kpartx"
+            package_list="qemu kpartx debootstrap"
             ;;
         "rhel" | "centos")
-            package_list="qemu-kvm qemu-img kpartx"
+            package_list="qemu-kvm qemu-img kpartx debootstrap"
             ;;
         *)
             err "Unknown platform '$platform' for the package list.\nAborting"

tools/gate/build-images

@@ -25,3 +25,5 @@ if [[ $PUT_IMAGE_TO_LOCAL_WEBSERVER != [Ff][Aa][Ll][Ss][Ee] ]]; then
     echo "Image with name '$image_name' is available now at \
           http://localhost:80/public_html/$image_name"
 fi
+
+echo $image_name > ./IMAGE_NAME