add GitHub Actions workflow and Dockerfile for building and pushing container image

.github/workflows/build.yaml

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+name: Build and Push Container Image
+
+on:
+  push:
+    branches: [main]
+  workflow_dispatch:
+
+permissions:
+  contents: write
+
+concurrency:
+  group: docker-build
+  cancel-in-progress: false
+
+env:
+  CONTAINER_TAG: liteyuki/new-domain-redir:latest
+  REGISTRY: reg.liteyuki.org
+
+jobs:
+  build-and-push-and-deploy:
+    runs-on: liteyukios-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Log in to Liteyuki Harbor
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ secrets.LCR_USERNAME }}
+          password: ${{ secrets.LCR_PASSWORD }}
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Build and push container image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          push: true
+          tags: ${{ env.REGISTRY }}/${{ env.CONTAINER_TAG }}

.gitignore

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+.idea/
+.vscode/

Dockerfile

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+# build
+FROM reg.liteyuki.org/dockerhub/golang:1.24.2-alpine3.21 AS builder
+
+ENV TZ=Asia/Chongqing
+
+WORKDIR /app
+
+RUN apk --no-cache add build-base git tzdata
+
+COPY go.mod go.sum ./
+
+RUN go mod download
+
+COPY . .
+
+RUN go build -o main main.go
+
+# production
+FROM reg.liteyuki.org/dockerhub/alpine:latest AS prod
+
+ENV TZ=Asia/Chongqing
+
+WORKDIR /app
+
+RUN apk --no-cache add tzdata ca-certificates libc6-compat libgcc libstdc++
+
+COPY --from=builder /app/main /app/main
+
+EXPOSE 8888
+
+RUN chmod +x ./main
+
+ENTRYPOINT ["./main"]

go.mod

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+module git.liteyuki.org/LiteyukiStudio/new-domain-redir
+
+go 1.23.3
+
+require github.com/cloudwego/hertz v0.10.0 // indirect

go.sum

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+github.com/cloudwego/hertz v0.10.0 h1:V0vmBaLdQPlgL6w2TA6PZL1g6SGgQznFx6vqxWdCcKw=
+github.com/cloudwego/hertz v0.10.0/go.mod h1:lRBohmcDkGx5TLK6QKFGdzJ6n3IXqGueHsOiXcYgXA4=

main.go

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+package main
+
+import (
+	"context"
+	"github.com/cloudwego/hertz/pkg/app"
+	"github.com/cloudwego/hertz/pkg/app/server"
+	"strings"
+)
+
+const (
+	OldDomain = "liteyuki.icu"
+	NewDomain = "liteyuki.org"
+)
+
+func main() {
+	h := server.Default()
+	h.Use(func(ctx context.Context, c *app.RequestContext) {
+		host := string(c.Host())
+		if strings.HasSuffix(host, OldDomain) {
+			newHost := strings.TrimSuffix(host, OldDomain) + NewDomain
+			scheme := "https"
+			if proto := c.Request.Header.Get("X-Forwarded-Proto"); len(proto) > 0 {
+				scheme = string(proto)
+			} else if forwarded := c.Request.Header.Get("Forwarded"); len(forwarded) > 0 {
+				// Forwarded: proto=https;host=xxx
+				for _, part := range strings.Split(string(forwarded), ";") {
+					if strings.HasPrefix(part, "proto=") {
+						scheme = strings.TrimPrefix(part, "proto=")
+						break
+					}
+				}
+			}
+			newURL := scheme + "://" + newHost + string(c.Request.RequestURI())
+			c.Redirect(301, []byte(newURL))
+			c.Abort()
+			return
+		}
+	})
+	h.GET("*", func(ctx context.Context, c *app.RequestContext) {
+		c.JSON(200, map[string]interface{}{"message": "pong"})
+	})
+	h.Spin()
+}