Infer rootwrap arguments from project

We can infer the binary and configuration paths just from the project
name and expanding this to the known *_DIR & *_BIN_DIR variables.  A
similar thing is done for policyd settings

Change-Id: I7c6a9fa106948ae5cbcf52555ade6154623798f1

inc/rootwrap

@@ -38,11 +38,17 @@ function add_sudo_secure_path {
 
 # Configure rootwrap
 # Make a load of assumptions otherwise we'll have 6 arguments
-# configure_rootwrap project bin conf-src-dir
+# configure_rootwrap project
 function configure_rootwrap {
-    local project=$1                    # xx
-    local rootwrap_bin=$2               # /opt/stack/xx.venv/bin/xx-rootwrap
-    local rootwrap_conf_src_dir=$3      # /opt/stack/xx/etc/xx
+    local project=$1
+    local project_uc=$(echo $1|tr a-z A-Z)
+    local bin_dir="${project_uc}_BIN_DIR"
+    bin_dir="${!bin_dir}"
+    local project_dir="${project_uc}_DIR"
+    project_dir="${!project_dir}"
+
+    local rootwrap_conf_src_dir="${project_dir}/etc/${project}"
+    local rootwrap_bin="${bin_dir}/${project}-rootwrap"
 
     # Start fresh with rootwrap filters
     sudo rm -rf /etc/${project}/rootwrap.d

lib/ceilometer

@@ -254,7 +254,7 @@ function configure_ceilometer {
 
     if is_service_enabled ceilometer-aipmi; then
         # Configure rootwrap for the ipmi agent
-        configure_rootwrap ceilometer $CEILOMETER_BIN_DIR/ceilometer-rootwrap $CEILOMETER_DIR/etc/ceilometer
+        configure_rootwrap ceilometer
     fi
 }
 

lib/cinder

@@ -190,7 +190,7 @@ function configure_cinder {
 
     rm -f $CINDER_CONF
 
-    configure_rootwrap cinder $CINDER_BIN_DIR/cinder-rootwrap $CINDER_DIR/etc/cinder
+    configure_rootwrap cinder
 
     cp $CINDER_DIR/etc/cinder/api-paste.ini $CINDER_API_PASTE_INI
 

lib/nova

@@ -298,7 +298,7 @@ function configure_nova {
 
     install_default_policy nova
 
-    configure_rootwrap nova $NOVA_BIN_DIR/nova-rootwrap $NOVA_DIR/etc/nova
+    configure_rootwrap nova
 
     if [[ "$ENABLED_SERVICES" =~ "n-api" ]]; then
         # Get the sample configuration file in place