chore: rework Dockerfile

Made the Dockerfile production ready. Multiple build steps.

Saved 126.1MB.

.dockerignore

@@ -4,4 +4,6 @@ node_modules
 npm-debug.log
 README.md
 .git
-.env
+.env
+docker-compose.yaml
+dist

Dockerfile

@@ -1,13 +1,24 @@
-FROM node:18-alpine
-WORKDIR /
-
+FROM node:18-slim AS base
+ENV PNPM_HOME="/pnpm"
+ENV PATH="$PNPM_HOME:$PATH"
+#Hook into pnpm without installing pnpm. (magic) (https://nodejs.org/docs/latest-v18.x/api/corepack.html)
+RUN corepack enable
+WORKDIR /usr/src/app
 COPY package*.json pnpm-lock.yaml* ./
-RUN npm i -g pnpm
 
-RUN pnpm install
+#Create node_modules files without dev dependencies.
+FROM base AS prod_dependencies
+RUN --mount=type=cache,id=pnpm,target=/pnpm/store pnpm install --prod --frozen-lockfile
 
+#Generate the dist directory.
+FROM base AS builder
 COPY . .
-
+RUN --mount=type=cache,id=pnpm,target=/pnpm/store pnpm install --frozen-lockfile
 RUN pnpm run build
 
-CMD pnpm run start
+#Final image
+FROM base
+WORKDIR /usr/src/app
+COPY --from=prod_dependencies /usr/src/app/node_modules ./node_modules
+COPY --from=builder /usr/src/app/dist ./dist
+CMD [ "pnpm", "run", "start" ]

package.json

@@ -55,15 +55,15 @@
     "prom-client": "^15.0.0",
     "quickchart-js": "^3.1.3",
     "topgg-autoposter": "^2.0.1",
-    "uuid": "^9.0.0"
+    "uuid": "^9.0.0",
+    "tslib": "^2.6.2"
   },
   "devDependencies": {
     "@types/express": "^4.17.21",
     "@types/uuid": "^9.0.5",
     "copyfiles": "^2.4.1",
     "nodemon": "3.0.1",
     "prettier": "^3.1.0",
-    "tslib": "^2.6.2",
     "typescript": "^5.2.2"
   }
 }