run yarn build in workflow

.github/workflows/publish.yml

@@ -15,6 +15,16 @@ jobs:
       - name: Check out the repo
         uses: actions/checkout@v4
 
+      - name: Use Node.js 16
+        uses: actions/setup-node@v2-beta
+        with:
+          node-version: '16'
+
+      - name: Build Project
+        run: |
+          yarn
+          yarn build
+
       - name: Log in to the Container registry
         uses: docker/login-action@65b78e6e13532edd9afa3aa52ac7964289d1a9c1
         with:

Dockerfile

@@ -1,19 +1,14 @@
 FROM node:20.10-alpine3.19
-ENV appDir /usr/src/app
+ENV appDir /usr/app
 
-# use changes to package.json to force Docker not to use the cache
-# when we change our application's nodejs dependencies:
-ADD package.json yarn.lock /tmp/
-RUN cd /tmp && yarn install
-RUN mkdir -p ${appDir} && cp -a /tmp/node_modules ${appDir}/
-
-# From here we load our application's code in, therefore the previous docker
-# "layer" thats been cached will be used if possible
+COPY express ${appDir}/express
 WORKDIR ${appDir}
-COPY . ${appDir}
 RUN yarn build
 # VOLUME ${appDir}/config
 
+# add webpack generated files
+COPY express ${appDir}/express
+
 EXPOSE 5000
 WORKDIR ${appDir}/express
 CMD ["node", "server.js"]