Adding some ansible work

ansible/gen_hostfile.sh

@@ -0,0 +1,41 @@
+#
+# Script to generate ansible host file from undercloud nova-list
+#
+#
+. ~/stackrc
+compute=()
+controllers=()
+ceph=()
+while read line; do
+ host=$(echo $line| awk '{print $4}')
+ IP=$(echo $line | awk '{print $12}' | cut -d "=" -f2)
+ if [[ ${host} =~ compute ]]; then
+   compute+="$IP "
+ fi
+ if [[ ${host} =~ ceph ]] ; then
+   ceph+="$IP "
+ fi
+ if [[ ${host} =~ control ]]; then
+   controllers+="$IP "
+ fi
+done < <(nova list | grep over)
+if [[ ${#compute} -gt 0 ]]; then
+echo "[computes]"
+for c in ${compute[@]}; do
+  echo $c
+done
+fi
+if [[ ${#controllers} -gt 0 ]]; then
+echo ""
+echo "[controllers]"
+for ct in ${controllers[@]}; do
+ echo $ct
+done
+fi
+if [[ ${#ceph} -gt 0 ]]; then
+echo ""
+echo "[ceph]"
+for ceph in ${ceph[@]}; do
+ echo $ceph
+done
+fi