build(scripts): add save docker action

.gitignore

@@ -6,3 +6,4 @@
 static/node_modules
 static/dist
 .env
+dist

scripts/docker-action

@@ -35,6 +35,16 @@ publish () {
   done
 }
 
+save () {
+  echo "save: $1"
+  . "$1/.env"
+  mkdir -p "$1/dist"
+  for PROJECT in "${DOCKER_PROJECTS[@]}"; do
+    IFS=: read -r PROJECT_NAME PROJECT_TARGET <<< "$PROJECT"
+    docker save --output "$1/dist/$PROJECT_NAME-$VERSION.tar" "$DOCKER_GROUP/$PROJECT_NAME"
+  done
+}
+
 DEFAULT_TARGETS="."
 TARGETS="${@-$DEFAULT_TARGETS}"