feat: add Dockerfiles for backend, frontend, and worker services with CI/CD pipeline configuration

.drone.yml

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+trigger:
+  ref:
+    include:
+      - refs/tags/*
+kind: pipeline
+name: Build
+steps:
+  - name: build-backend
+    image: plugins/docker
+    settings:
+      username: fudaoyuanicu
+      repo: fudaoyuanicu/015-backend
+      context: ./backend
+      password:
+        from_secret: docker_password
+      dockerfile: Dockerfile
+      tags:
+        - ${DRONE_TAG}
+        - latest
+      build_args:
+        - BUILD_TAG=${DRONE_TAG}
+  - name: build-frontend
+    image: plugins/docker
+    settings:
+      username: fudaoyuanicu
+      repo: fudaoyuanicu/015-frontend
+      context: ./front
+      password:
+        from_secret: docker_password
+      dockerfile: Dockerfile
+      tags:
+        - ${DRONE_TAG}
+        - latest
+      build_args:
+        - BUILD_TAG=${DRONE_TAG}
+  - name: build-worker
+    image: plugins/docker
+    settings:
+      username: fudaoyuanicu
+      repo: fudaoyuanicu/015-worker
+      context: ./worker
+      password:
+        from_secret: docker_password
+      dockerfile: Dockerfile
+      tags:
+        - ${DRONE_TAG}
+        - latest
+      build_args:
+        - BUILD_TAG=${DRONE_TAG}
+  - name: deploy
+    image: plugins/webhook
+    settings:
+      urls: http://192.168.100.5:8364/v1/update
+      content_type: application/json
+      headers:
+        - 'Authorization=Bearer helloworld'

backend/Dockerfile

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+# syntax=docker/dockerfile:1
+
+FROM golang:1.23.1 AS builder
+
+# Set destination for COPY
+WORKDIR /app
+
+# Download Go modules
+COPY go.mod go.sum ./
+RUN go mod download
+
+# Copy the source code. Note the slash at the end, as explained in
+# https://docs.docker.com/engine/reference/builder/#copy
+COPY *.go ./
+
+# Build
+RUN CGO_ENABLED=0 GOOS=linux go build -o /backend
+
+# Optional:
+# To bind to a TCP port, runtime parameters must be supplied to the docker command.
+# But we can document in the Dockerfile what ports
+# the application is going to listen on by default.
+# https://docs.docker.com/engine/reference/builder/#expose
+FROM alpine:3
+COPY --from=builder /app/backend /bin/backend
+ENTRYPOINT ["/bin/backend"]
+EXPOSE 8080

front/Dockerfile

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+FROM node:22-alpine AS base
+
+# Install dependencies only when needed
+FROM base AS deps
+RUN apk add --no-cache libc6-compat 
+WORKDIR /app
+COPY package.json ./
+RUN corepack enable pnpm && pnpm i
+
+
+FROM base AS builder
+WORKDIR /app
+COPY --from=deps /app/node_modules ./node_modules
+COPY . .
+RUN corepack enable pnpm && pnpm i && pnpm build
+
+FROM base AS runner
+ARG BUILD_TAG
+WORKDIR /app
+RUN apk add --no-cache curl openssl
+ENV NODE_ENV production
+
+RUN addgroup --system --gid 1001 nodejs
+RUN adduser --system --uid 1001 nuxtjs
+
+# Only `.output` folder is needed from the build stage
+COPY --from=builder --chown=nuxtjs:nodejs /app/.output/ ./
+
+# Change the port and host
+ENV PORT 80
+ENV HOST 0.0.0.0
+
+EXPOSE 80
+
+CMD ["node", "/app/server/index.mjs"]

worker/Dockerfile

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+# syntax=docker/dockerfile:1
+
+FROM golang:1.23.1 AS builder
+
+# Set destination for COPY
+WORKDIR /app
+
+# Download Go modules
+COPY go.mod go.sum ./
+RUN go mod download
+
+# Copy the source code. Note the slash at the end, as explained in
+# https://docs.docker.com/engine/reference/builder/#copy
+COPY *.go ./
+
+# Build
+RUN CGO_ENABLED=0 GOOS=linux go build -o /worker
+
+FROM alpine:3
+RUN apk add --no-cache pngquant jpegoptim
+COPY --from=builder /app/worker /bin/worker
+ENTRYPOINT ["/bin/worker"]