build: improve building and resulting code

.gitignore

@@ -130,3 +130,7 @@ dist
 .yarn/install-state.gz
 .pnp.*
 
+# yarn v4
+.yarn/*
+!.yarn/releases
+!.yarn/plugins

.yarnrc.yml

@@ -0,0 +1 @@
+nodeLinker: node-modules

Dockerfile

@@ -1,20 +1,26 @@
-FROM node:alpine AS builder
+FROM node:22-alpine AS base
+ENV NODE_ENV=development
+ENV YARN_VERSION=4.5.1
+RUN corepack enable && corepack prepare yarn@${YARN_VERSION}
+RUN apk add git
 
+FROM base AS builder
 WORKDIR /app
+COPY package.json yarn.lock .yarnrc.yml ./
+# COPY .yarn ./.yarn
+RUN yarn install --immutable
 
-COPY package.json yarn.lock ./
-RUN apk add --no-cache git
-RUN yarn install --frozen-lockfile
+COPY ./src ./src
+COPY ./tsconfig.json ./
 
+RUN yarn build
 
-FROM node:alpine
+FROM node:alpine AS runner
 
 WORKDIR /app
-
 COPY --from=builder /app/node_modules ./node_modules
-COPY package.json yarn.lock ./
-COPY . .
-
+COPY --from=builder /app/dist ./dist
 COPY ./cronjob /etc/crontabs/root
+RUN touch /var/log/cron.log
 
-CMD ["sh", "-c", "crond && tail -f /dev/null"]
+CMD ["sh", "-c", "crond && tail -f /var/log/cron.log"]

cronjob

@@ -1 +1 @@
-0 * * * * yarn start >> /var/log/cron.log 2>&1
+0 * * * * node /app/dist/src/index.js >> /var/log/cron.log 2>&1

package.json

@@ -4,8 +4,8 @@
   "description": "Planka API service",
   "main": "src/index.ts",
   "scripts": {
-    "start": "ts-node src/index.ts",
-    "start:env": "ts-node -r dotenv/config src/index.ts",
+    "start": "node dist/src/index.js",
+    "dev": "ts-node src/index.ts",
     "build": "tsc",
     "lint": "eslint src",
     "lint:fix": "eslint src --fix",
@@ -22,9 +22,9 @@
     "@types/imapflow": "^1.0.19",
     "@types/node": "^22.9.0",
     "dotenv": "^16.0.0",
+    "prettier": "^3.3.3",
     "ts-node": "^10.9.2",
-    "typescript": "^5.2.2",
-    "prettier": "^3.3.3"
+    "typescript": "^5.2.2"
   },
   "repository": {
     "type": "git",
@@ -36,5 +36,5 @@
     "url": "https://github.com/GEWIS/plankapi/issues"
   },
   "homepage": "https://github.com/GEWIS/plankapi#readme",
-  "packageManager": "yarn@1.22.22"
+  "packageManager": "yarn@1.22.19"
 }

src/index.ts

@@ -1,3 +1,6 @@
+import { config } from 'dotenv';
+config();
+
 import Mailer from './mailer';
 import Planka from './planka';