A service to install diskimage-builder

Enabling service 'dib' will install the following repos:
* diskimage-builder
* tripleo-image-elements
* os-collect-config
* os-refresh-config
* os-apply-config

These repos are already pre-fetched in devstack-gate.

This will facilitate gating on changes in these projects by building
a custom image then running the heat-slow job against that image.

diskimage_builder is pip installed from the current git checkout
if the dib service is enabled. This allows devstack gating on
diskimage-builder changes while also allowing diskimage-builder to
be installed from releases for other scenarios (for example, ironic).

Change-Id: Ia911cdee86f5b2e2ba1557e5aa8bf392b92ef555

extras.d/40-dib.sh

@@ -0,0 +1,27 @@
+# dib.sh - Devstack extras script to install diskimage-builder
+
+if is_service_enabled dib; then
+    if [[ "$1" == "source" ]]; then
+        # Initial source
+        source $TOP_DIR/lib/dib
+    elif [[ "$1" == "stack" && "$2" == "install" ]]; then
+        echo_summary "Installing diskimage-builder"
+        install_dib
+    elif [[ "$1" == "stack" && "$2" == "post-config" ]]; then
+        # no-op
+        :
+    elif [[ "$1" == "stack" && "$2" == "extra" ]]; then
+        # no-op
+        :
+    fi
+
+    if [[ "$1" == "unstack" ]]; then
+        # no-op
+        :
+    fi
+
+    if [[ "$1" == "clean" ]]; then
+        # no-op
+        :
+    fi
+fi

lib/dib

@@ -0,0 +1,51 @@
+# lib/dib
+# Install and build images with **diskimage-builder**
+
+# Dependencies:
+#
+# - functions
+# - DEST, DATA_DIR must be defined
+
+# stack.sh
+# ---------
+# - install_dib
+
+# Save trace setting
+XTRACE=$(set +o | grep xtrace)
+set +o xtrace
+
+# Defaults
+# --------
+
+# set up default directories
+DIB_DIR=$DEST/diskimage-builder
+TIE_DIR=$DEST/tripleo-image-elements
+DIB_IMAGE_CACHE=$DATA_DIR/diskimage-builder/image-create
+OCC_DIR=$DEST/os-collect-config
+ORC_DIR=$DEST/os-refresh-config
+OAC_DIR=$DEST/os-apply-config
+
+# Functions
+# ---------
+
+# install_dib() - Collect source and prepare
+function install_dib {
+    git_clone $DIB_REPO $DIB_DIR $DIB_BRANCH
+    pushd $DIB_DIR
+    pip_install ./
+    popd
+
+    git_clone $TIE_REPO $TIE_DIR $TIE_BRANCH
+    git_clone $OCC_REPO $OCC_DIR $OCC_BRANCH
+    git_clone $ORC_REPO $ORC_DIR $ORC_BRANCH
+    git_clone $OAC_REPO $OAC_DIR $OAC_BRANCH
+    mkdir -p $DIB_IMAGE_CACHE
+}
+
+# Restore xtrace
+$XTRACE
+
+# Tell emacs to use shell-script-mode
+## Local variables:
+## mode: shell-script
+## End:

stackrc

@@ -124,6 +124,10 @@ CINDER_BRANCH=${CINDER_BRANCH:-master}
 CINDERCLIENT_REPO=${CINDERCLIENT_REPO:-${GIT_BASE}/openstack/python-cinderclient.git}
 CINDERCLIENT_BRANCH=${CINDERCLIENT_BRANCH:-master}
 
+# diskimage-builder
+DIB_REPO=${DIB_REPO:-${GIT_BASE}/openstack/diskimage-builder.git}
+DIB_BRANCH=${DIB_BRANCH:-master}
+
 # image catalog service
 GLANCE_REPO=${GLANCE_REPO:-${GIT_BASE}/openstack/glance.git}
 GLANCE_BRANCH=${GLANCE_BRANCH:-master}
@@ -184,10 +188,22 @@ NOVA_BRANCH=${NOVA_BRANCH:-master}
 NOVACLIENT_REPO=${NOVACLIENT_REPO:-${GIT_BASE}/openstack/python-novaclient.git}
 NOVACLIENT_BRANCH=${NOVACLIENT_BRANCH:-master}
 
+# os-apply-config configuration template tool
+OAC_REPO=${OAC_REPO:-${GIT_BASE}/openstack/os-apply-config.git}
+OAC_BRANCH=${OAC_BRANCH:-master}
+
+# os-collect-config configuration agent
+OCC_REPO=${OCC_REPO:-${GIT_BASE}/openstack/os-collect-config.git}
+OCC_BRANCH=${OCC_BRANCH:-master}
+
 # consolidated openstack python client
 OPENSTACKCLIENT_REPO=${OPENSTACKCLIENT_REPO:-${GIT_BASE}/openstack/python-openstackclient.git}
 OPENSTACKCLIENT_BRANCH=${OPENSTACKCLIENT_BRANCH:-master}
 
+# os-refresh-config configuration run-parts tool
+ORC_REPO=${ORC_REPO:-${GIT_BASE}/openstack/os-refresh-config.git}
+ORC_BRANCH=${ORC_BRANCH:-master}
+
 # cliff command line framework
 CLIFF_REPO=${CLIFF_REPO:-${GIT_BASE}/openstack/cliff.git}
 CLIFF_BRANCH=${CLIFF_BRANCH:-master}
@@ -258,10 +274,9 @@ SWIFTCLIENT_BRANCH=${SWIFTCLIENT_BRANCH:-master}
 TEMPEST_REPO=${TEMPEST_REPO:-${GIT_BASE}/openstack/tempest.git}
 TEMPEST_BRANCH=${TEMPEST_BRANCH:-master}
 
-
-# diskimage-builder
-DIB_REPO=${DIB_REPO:-${GIT_BASE}/openstack/diskimage-builder.git}
-DIB_BRANCH=${DIB_BRANCH:-master}
+# Tripleo elements for diskimage-builder images
+TIE_REPO=${TIE_REPO:-${GIT_BASE}/openstack/tripleo-image-elements.git}
+TIE_BRANCH=${TIE_BRANCH:-master}
 
 # a websockets/html5 or flash powered VNC console for vm instances
 NOVNC_REPO=${NOVNC_REPO:-https://github.com/kanaka/noVNC.git}