Add Go WireGuard panel with PostgreSQL 17 and Dokploy compose.

Dockerfile

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+# syntax=docker/dockerfile:1
+
+FROM golang:1.26-alpine AS builder
+WORKDIR /src
+RUN apk add --no-cache git ca-certificates
+COPY go.mod go.sum ./
+RUN go mod download
+COPY . .
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags="-s -w" -o /out/wg-panel ./cmd/server
+
+FROM alpine:3.21
+WORKDIR /app
+RUN apk add --no-cache ca-certificates tzdata curl
+COPY --from=builder /out/wg-panel /app/wg-panel
+COPY migrations /app/migrations
+COPY web /app/web
+COPY wg.sql /data/wg.sql
+ENV APP_ROOT=/app \
+    MIGRATIONS_DIR=/app/migrations \
+    TEMPLATES_DIR=/app/web/templates \
+    STATIC_DIR=/app/web/static \
+    MYSQL_DUMP_PATH=/data/wg.sql \
+    APP_PORT=8080
+EXPOSE 8080
+HEALTHCHECK --interval=30s --timeout=5s --start-period=40s --retries=3 \
+  CMD curl -fsS http://127.0.0.1:8080/login >/dev/null || exit 1
+USER nobody
+CMD ["/app/wg-panel"]