Docker build: Pre-compile public libraries

Dockerfile

@@ -27,6 +27,11 @@ RUN \
   ln -s "./config/config.yaml" "config.yaml" || true && \
   mkdir "config" || true
 
+# Pre-compile public libraries
+RUN \
+  echo "*** Run Webpack ***" && \
+  node "./docker/build-lib.js"
+
 # Cleanup unnecessary files
 RUN \
   echo "*** Cleanup ***" && \

docker/build-lib.js

@@ -0,0 +1,4 @@
+import getWebpackServeMiddleware from '../src/middleware/webpack-serve.js';
+
+const middleware = getWebpackServeMiddleware();
+await middleware.runWebpackCompiler();

src/middleware/webpack-serve.js

@@ -36,7 +36,9 @@ export default function getWebpackServeMiddleware() {
                     console.log(output);
                     console.log();
                 }
-                resolve();
+                compiler.close(() => {
+                    resolve();
+                });
             });
         });
     };