@@ -1772,6 +1772,7 @@ function run_phase {

     # the source phase corresponds to settings loading in plugins

     if [[ "$mode" == "source" ]]; then

         load_plugin_settings

+        verify_disabled_services

     elif [[ "$mode" == "override_defaults" ]]; then

         plugin_override_defaults

     else

@@ -1827,25 +1828,26 @@ function disable_negated_services {

     ENABLED_SERVICES=$(remove_disabled_services "$remaining" "$to_remove")

 }

-# disable_service() removes the services passed as argument to the

-# ``ENABLED_SERVICES`` list, if they are present.

+# disable_service() prepares the services passed as argument to be

+# removed from the ``ENABLED_SERVICES`` list, if they are present.

 #

 # For example:

 #   disable_service rabbit

 #

-# This function does not know about the special cases

-# for nova, glance, and neutron built into is_service_enabled().

-# Uses global ``ENABLED_SERVICES``

+# Uses global ``DISABLED_SERVICES``

 # disable_service service [service ...]

 function disable_service {

-    local tmpsvcs=",${ENABLED_SERVICES},"

+    local disabled_svcs="${DISABLED_SERVICES}"

+    local enabled_svcs=",${ENABLED_SERVICES},"

     local service

     for service in $@; do

+        disabled_svcs+=",$service"

         if is_service_enabled $service; then

-            tmpsvcs=${tmpsvcs//,$service,/,}

+            enabled_svcs=${enabled_svcs//,$service,/,}

         fi

     done

-    ENABLED_SERVICES=$(_cleanup_service_list "$tmpsvcs")

+    DISABLED_SERVICES=$(_cleanup_service_list "$disabled_svcs")

+    ENABLED_SERVICES=$(_cleanup_service_list "$enabled_svcs")

 }

 # enable_service() adds the services passed as argument to the

@@ -1862,6 +1864,10 @@ function enable_service {

     local tmpsvcs="${ENABLED_SERVICES}"

     local service

     for service in $@; do

+        if [[ ,${DISABLED_SERVICES}, =~ ,${service}, ]]; then

+            warn $LINENO "Attempt to enable_service ${service} when it has been disabled"

+            continue

+        fi

         if ! is_service_enabled $service; then

             tmpsvcs+=",$service"

         fi

@@ -1965,6 +1971,18 @@ function use_exclusive_service {

     return 0

 }

+# Make sure that nothing has manipulated ENABLED_SERVICES in a way

+# that conflicts with prior calls to disable_service.

+# Uses global ``ENABLED_SERVICES``

+function verify_disabled_services {

+    local service

+    for service in ${ENABLED_SERVICES//,/ }; do

+        if [[ ,${DISABLED_SERVICES}, =~ ,${service}, ]]; then

+            die $LINENO "ENABLED_SERVICES directly modified to overcome 'disable_service ${service}'"

+        fi

+    done

+}

+

 # System Functions

 # ================

@@ -543,6 +543,7 @@ source $TOP_DIR/lib/dstat

 # Phase: source

 run_phase source

+

 # Interactive Configuration

 # -------------------------