new: support for type of service ``run-once`` through hook ``dc-pre-run`` and removal of auto-populated ``up``.

bin/compose

@@ -2880,6 +2880,7 @@ export DOCKER_DATASTORE=${DOCKER_DATASTORE:-/srv/docker-datastore}
 
 
 COMPOSE_YML_FILE=$(get_compose_yml_location) || exit 1
+COMPOSE_YML_CONTENT=$(get_compose_yml_content) || exit 1
 export COMPOSE_YML_FILE COMPOSE_YML_CONTENT
 
 
@@ -2910,12 +2911,28 @@ if [ -z "$is_docker_compose_action" -a "$action" ]; then
         die "Unknown action '${DARKCYAN}$action$NORMAL': It doesn't match any docker-compose commands nor inner charm actions."
     fi
 else
-    if [[ "$action" =~ (up|ps) && "${#services_args[@]}" == 0 ]]; then
-        services_args=($(echo "$COMPOSE_YML_CONTENT" | shyaml keys))
+    case "$action" in
+        ps)
+            if [ "${#services_args[@]}" == 0 ]; then
+                services_args=($(printf "%s" "$COMPOSE_YML_CONTENT" | shyaml keys 2>/dev/null)) || true
             fi
-    if [ "$action" == "config" ]; then
-        services_args=("${action_posargs[@]}")
+            ;;
+        up)
+            if [ "${#services_args[@]}" == 0 ]; then
+                while read-0 service; do
+                    charm=$(get_service_charm "$service")
+                    metadata=$(charm.metadata "$charm")
+                    type="$(printf "%s" "$metadata" | shyaml get-value type 2>/dev/null)" || true
+                    if [ "$type" != "run-once" ]; then
+                        services_args+=("$service")
+                    fi
+                done < <(printf "%s" "$COMPOSE_YML_CONTENT" | shyaml keys-0 2>/dev/null)
             fi
+            ;;
+        config)
+            services_args=("${action_posargs[@]}")
+            ;;
+    esac
     if [ "$is_docker_compose_action" -a "${#services_args[@]}" -gt 0 ]; then
         services=($(get_master_services "${services_args[@]}")) || exit 1
         action_posargs+=("${services[@]}")
@@ -2981,6 +2998,15 @@ if [ "$full_init" ]; then
 
 fi
 
+if [ "$action" == "run" ]; then
+    charm=$(get_service_charm "${services_args[0]}") || exit 1
+    metadata=$(charm.metadata "$charm") || exit 1
+    type="$(printf "%s" "$metadata" | shyaml get-value type 2>/dev/null)" || true
+    if [ "$type" == "run-once" ]; then
+        run_service_hook dc-pre-run "${services_args[@]}" || exit 1
+    fi
+fi
+
 
 export SERVICE_PACK="${services_args[*]}"