From e7377a877146458ae00aada3370ca1c0e4ae0233 Mon Sep 17 00:00:00 2001
From: toom1996 <23cm.cn@gmail.com>
Date: Wed, 21 Oct 2026 00:03:06 +0800
Subject: [PATCH] =?UTF-8?q?build:=20=E6=96=B0=E5=A2=9E=20Dockerfile.prebui?=
 =?UTF-8?q?lt=EF=BC=8C.dockerignore=20=E4=BF=9D=E7=95=99=20dist?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

- 配合后端 scripts/push-build.sh：本机 astro build 后服务器只打镜像层，不跑 npm ci + build
- .dockerignore 之前忽略 dist，会导致预构建 COPY dist 失败
- 新增 .gitattributes 固定 Dockerfile / yml / conf 为 LF
---
 .dockerignore       |  2 +-
 .gitattributes      |  8 ++++++++
 Dockerfile.prebuilt | 23 +++++++++++++++++++++++
 3 files changed, 32 insertions(+), 1 deletion(-)
 create mode 100644 .gitattributes
 create mode 100644 Dockerfile.prebuilt

diff --git a/.dockerignore b/.dockerignore
index 90afc23..014a4ff 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -1,5 +1,5 @@
 node_modules
-dist
+# ⚠️ 不要忽略 dist：本地预构建时 Dockerfile.prebuilt 需要 COPY 它
 .git
 .github
 .gitea
diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..c7e3fb1
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,8 @@
+# Dockerfile 必须 LF：CRLF 会让续行符 `\` 后面多出一个 \r，被当成指令参数
+Dockerfile text eol=lf
+Dockerfile.* text eol=lf
+
+# 脚本与配置统一 LF
+*.sh text eol=lf
+*.yml text eol=lf
+*.conf text eol=lf
diff --git a/Dockerfile.prebuilt b/Dockerfile.prebuilt
new file mode 100644
index 0000000..0808859
--- /dev/null
+++ b/Dockerfile.prebuilt
@@ -0,0 +1,23 @@
+# 预构建镜像：dist/ 在本机 build 好（构建期 SSG 数据经 SSH 隧道取自线上），
+# 服务器只装运行时依赖并打层，不跑 astro build。
+# 由 backend/scripts/push-build.sh 与 backend/deploy.sh --prebuilt 使用。
+
+FROM node:22-alpine
+WORKDIR /app
+
+ENV NODE_ENV=production \
+    HOST=0.0.0.0 \
+    PORT=3000
+
+# 运行时依赖层：只在 package-lock 变化时重装，日常发布命中缓存
+COPY package*.json ./
+RUN npm ci --omit=dev && npm cache clean --force
+
+COPY dist ./dist
+
+EXPOSE 3000
+
+HEALTHCHECK --interval=15s --timeout=3s --start-period=15s --retries=3 \
+  CMD nc -z 127.0.0.1 3000 || exit 1
+
+CMD ["node", "./dist/server/entry.mjs"]