Dockerfile: bump to nodejs 20 (#999)

.github/workflows/lint.yml

@@ -18,7 +18,7 @@ jobs:
       - name: Setup Node
         uses: actions/setup-node@v4
         with:
-          node-version: '18'
+          node-version: '20'
           check-latest: true
           cache: 'npm'
           cache-dependency-path: |

.github/workflows/npm-update-bot.yml

@@ -20,7 +20,7 @@ jobs:
       - name: Setup Node
         uses: actions/setup-node@v4
         with:
-          node-version: '18'
+          node-version: '20'
           check-latest: true
           cache: 'npm'
           cache-dependency-path: |

Dockerfile

@@ -1,17 +1,20 @@
-# There's an issue with node:20-alpine.
+# As a workaround we have to build on nodejs 18
-# Docker deployment is canceled after 25< minutes.
+# nodejs 20 hangs on build with armv6/armv7
-
 FROM docker.io/library/node:18-alpine AS build_node_modules
 
 # Copy Web UI
 COPY src/ /app/
 WORKDIR /app
 RUN npm ci --omit=dev &&\
+    # Enable this to run `npm run serve`
+    npm i -g nodemon &&\
+    # Delete unnecessary files 
+    npm cache clean --force && rm -rf ~/.npm &&\
     mv node_modules /node_modules
 
 # Copy build result to a new image.
 # This saves a lot of disk space.
-FROM docker.io/library/node:18-alpine
+FROM docker.io/library/node:20-alpine
 COPY --from=build_node_modules /app /app
 
 # Move node_modules one directory up, so during development
@@ -23,12 +26,6 @@ COPY --from=build_node_modules /app /app
 # than what runs inside of docker.
 COPY --from=build_node_modules /node_modules /node_modules
 
-RUN \
-    # Enable this to run `npm run serve`
-    npm i -g nodemon &&\
-    # Delete unnecessary files 
-    npm cache clean --force && rm -rf ~/.npm
-
 # Install Linux packages
 RUN apk add --no-cache \
     dpkg \

src/package-lock.json

@@ -21,7 +21,7 @@
         "tailwindcss": "^3.4.3"
       },
       "engines": {
-        "node": "18"
+        "node": "20"
       }
     },
     "node_modules/@aashutoshrathi/word-wrap": {

src/package.json

@@ -30,6 +30,6 @@
     ]
   },
   "engines": {
-    "node": "18"
+    "node": "20"
   }
 }