fix dockerfile

.github/workflows/docker.yml

@@ -19,30 +19,6 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v1
 
-      - name: Set up Pandoc
-        run: |
-          sudo apt-get update
-          sudo apt-get install pandoc -y
-
-      - name: Use Node.js 15.x
-        uses: actions/setup-node@v1
-        with:
-          node-version: "15.x"
-
-      - name: Cache NPM dependencies
-        uses: actions/cache@v2
-        with:
-          path: node_modules
-          key: ${{ runner.OS }}-npm-cache
-          restore-keys: |
-            ${{ runner.OS }}-npm-cache
-
-      - name: Install Dependencies
-        run: npm install
-
-      - name: Build
-        run: npm run build
-
       - name: Login to GitHub Container Registry
         uses: docker/login-action@v1 
         with:

Dockerfile

@@ -1,5 +1,18 @@
-FROM nginx:stable-alpine
+FROM node:15 as build
+
+# https://github.com/jgm/pandoc/releases
+RUN curl -LO https://github.com/jgm/pandoc/releases/download/2.14.0.1/pandoc-2.14.0.1-1-amd64.deb
+RUN dpkg -i pandoc-2.14.0.1-1-amd64.deb
+
+WORKDIR /app
+COPY package.json /app
+RUN yarn install
+COPY themes /app/themes
+COPY source /app/source
+COPY _config.yml /app/
+RUN yarn build
+
+FROM nginx:stable-alpine as runtime
 
 COPY nginx.conf /etc/nginx/nginx.conf
-
-COPY public /var/www/html/
+COPY --from=build /app/public /var/www/html/