chore: use pnpm instead of yarn

.github/workflows/tests.yml

@@ -32,30 +32,37 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - uses: actions/setup-node@v3
+      - uses: pnpm/action-setup@v2.2.4
         with:
-          node-version: "18"
-          cache: yarn
-          cache-dependency-path: "web/yarn.lock"
-      - run: yarn
-        working-directory: web
-      - name: Run eslint check
-        run: yarn lint
-        working-directory: web
-
-  frontend-build:
-    runs-on: ubuntu-latest
-    steps:
+          version: 8.0.0
       - uses: actions/checkout@v3
       - uses: actions/setup-node@v3
         with:
           node-version: "18"
           cache: yarn
           cache-dependency-path: "web/yarn.lock"
-      - run: yarn
+      - run: pnpm install
+        working-directory: web
+      - name: Run eslint check
+        run: pnpm lint
+        working-directory: web
+
+  frontend-build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: pnpm/action-setup@v2.2.4
+        with:
+          version: 8.0.0
+      - uses: actions/setup-node@v3
+        with:
+          node-version: "18"
+          cache: pnpm
+          cache-dependency-path: "web/pnpm-lock.yaml"
+      - run: pnpm install
         working-directory: web
       - name: Run frontend build
-        run: yarn build
+        run: pnpm build
         working-directory: web
 
   go-tests:

Dockerfile

@@ -2,25 +2,30 @@
 FROM node:18.12.1-alpine3.16 AS frontend
 WORKDIR /frontend-build
 
+COPY ./web/package.json ./web/pnpm-lock.yaml ./
+
+RUN corepack enable && pnpm i --frozen-lockfile
+
 COPY ./web/ .
 
-RUN yarn && yarn build
+RUN pnpm build
 
 # Build backend exec file.
 FROM golang:1.19.3-alpine3.16 AS backend
 WORKDIR /backend-build
 
-RUN apk update && apk add --no-cache gcc musl-dev
-
 COPY . .
 COPY --from=frontend /frontend-build/dist ./server/dist
 
-RUN go build -o shortify ./main.go
+RUN CGO_ENABLED=0 go build -o shortify ./main.go
 
 # Make workspace with above generated files.
 FROM alpine:3.16 AS monolithic
 WORKDIR /usr/local/shortify
 
+RUN apk add --no-cache tzdata
+ENV TZ="UTC"
+
 COPY --from=backend /backend-build/shortify /usr/local/shortify/
 
 # Directory to store the data, which can be referenced as the mounting point.