build(docker): use yarn for theme assets

Dockerfile

@@ -1,7 +1,12 @@
 FROM node:14-alpine AS assets-build
+WORKDIR /app
+RUN mkdir /node_modules \
+  chown node:node -R /node_modules /app
+USER node
 WORKDIR /app/web/themes/custom/opdavies
-COPY web/themes/custom/opdavies/package*.json ./
-RUN npm ci
+COPY web/themes/custom/opdavies/package.json .
+COPY web/themes/custom/opdavies/yarn.lock .
+RUN yarn install && yarn cache clear
 COPY web/themes/custom/opdavies ./
 RUN npm run production
 

docker-compose.yaml

@@ -59,8 +59,8 @@ services:
       - node_modules:/node/node_modules
       - ./config:/node/config
       - ./web/themes/custom/opdavies/assets:/node/assets
-      - ./web/themes/custom/opdavies/package-lock.json:/node/package-lock.json
       - ./web/themes/custom/opdavies/package.json:/node/package.json
+      - ./web/themes/custom/opdavies/yarn.lock:/node/yarn.lock
       - ./web/themes/custom/opdavies/postcss.config.js:/node/postcss.config.js
       - ./web/themes/custom/opdavies/tailwindcss:/node/tailwindcss
       - ./web/themes/custom/opdavies/tailwind.config.js:/node/tailwind.config.js

web/themes/custom/opdavies/.yarnrc

@@ -0,0 +1 @@
+--modules-folder /node_modules