Save stackenv values more often

Having these for debugging can be handy

Change-Id: I18c2658eec83a0f20f697a3c4c36aa1cf46b7a92

functions-common

@@ -43,6 +43,25 @@ declare -A GITDIR
 
 TRACK_DEPENDS=${TRACK_DEPENDS:-False}
 
+# Save these variables to .stackenv
+STACK_ENV_VARS="BASE_SQL_CONN DATA_DIR DEST ENABLED_SERVICES HOST_IP \
+    KEYSTONE_AUTH_PROTOCOL KEYSTONE_AUTH_URI KEYSTONE_SERVICE_URI \
+    LOGFILE OS_CACERT SERVICE_HOST SERVICE_PROTOCOL STACK_USER TLS_IP"
+
+
+# Saves significant environment variables to .stackenv for later use
+# Refers to a lot of globals, only TOP_DIR and STACK_ENV_VARS are required to
+# function, the rest are simply saved and do not cause problems if they are undefined.
+# save_stackenv [tag]
+function save_stackenv {
+    local tag=${1:-""}
+    # Save some values we generated for later use
+    time_stamp=$(date "+$TIMESTAMP_FORMAT")
+    echo "# $time_stamp $tag" >$TOP_DIR/.stackenv
+    for i in $STACK_ENV_VARS; do
+        echo $i=${!i} >>$TOP_DIR/.stackenv
+    done
+}
 
 # Normalize config values to True or False
 # Accepts as False: 0 no No NO false False FALSE
@@ -68,6 +87,7 @@ function isset {
     [[ -v "$1" ]]
 }
 
+
 # Control Functions
 # =================
 

stack.sh

@@ -669,6 +669,9 @@ if is_service_enabled s-proxy; then
     fi
 fi
 
+# Save configuration values
+save_stackenv $LINENO
+
 
 # Install Packages
 # ================
@@ -950,6 +953,9 @@ fi
 # Initialize the directory for service status check
 init_service_check
 
+# Save configuration values
+save_stackenv $LINENO
+
 
 # Start Services
 # ==============
@@ -1294,12 +1300,7 @@ fi
 
 
 # Save some values we generated for later use
-CURRENT_RUN_TIME=$(date "+$TIMESTAMP_FORMAT")
+save_stackenv
-echo "# $CURRENT_RUN_TIME" >$TOP_DIR/.stackenv
-for i in BASE_SQL_CONN ENABLED_SERVICES HOST_IP LOGFILE \
-    SERVICE_HOST SERVICE_PROTOCOL STACK_USER TLS_IP KEYSTONE_AUTH_PROTOCOL OS_CACERT; do
-    echo $i=${!i} >>$TOP_DIR/.stackenv
-done
 
 
 # Wrapup configuration