feat: deploy/deploy.sh 自动化部署体系 — 双tag镜像/快照/迁移门控/回滚,退役根deploy.sh
- compose 四服务补 image: ${BACKEND_TAG}/${FRONTEND_TAG} 插值(换 tag 回滚前提)
- deploy/deploy.sh:工作区校验→PREV_SHA→pull→predeploy 快照(-Fc)→destructive 判定→
build+双tag→.pending-deploy→迁移退出码门控→up -d --no-deps→健康轮询→versions.log→
镜像治理;支持 --dry-run / flock / 基础设施健康门 / 多head预检
- deploy/rollback.sh:双入口(手动读 versions.log 跳 ROLLBACK 行 / --auto 读
.pending-deploy);destructive 走 pg_restore --clean;双 tag 原子切换
- deploy/hotfix.sh:紧急单文件 cp + 强制收口提醒
- .gitignore 补 .pending-deploy/versions.log(运行时状态)
- 退役根 deploy.sh + deploy.env.example(SSH 旧模型,被 deploy/deploy.sh 取代)
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#!/usr/bin/env bash
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# ═══════════════════════════════════════════════════════════════════
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# rollback.sh — 回滚到上一个成功部署版本(backend+frontend 双 tag 原子切换)
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#
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# 用法:
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# bash deploy/rollback.sh # 手动回滚:versions.log 最近一次成功部署
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# bash deploy/rollback.sh <backend_sha> [<frontend_sha>] # 回滚到指定版本
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# bash deploy/rollback.sh --auto # 部署失败自动回滚(读本次 .pending-deploy)
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#
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# 双入口读不同来源(N1 核心洞:失败自动回滚绝不读 versions.log 判 destructive):
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# · 手动回滚: 旧 sha + destructive 从 versions.log 读(跳过 ROLLBACK 行,E5)
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# · --auto: 读本次 .pending-deploy(<sha> <sha> <destructive> <快照路径>)
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#
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# 数据回退主路径 = pg_restore predeploy 快照(数据 + schema 一起回,先清后恢复);
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# alembic downgrade 只反向 schema 不恢复数据,仅用于可逆非破坏性调整。
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# ═══════════════════════════════════════════════════════════════════
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set -euo pipefail
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DEPLOY_DIR="$(cd "$(dirname "$0")" && pwd)"
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REPO_ROOT="$(cd "$DEPLOY_DIR/.." && pwd)"
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cd "$REPO_ROOT"
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COMPOSE_FILE="docker-compose.prod.yml"
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COMPOSE=(docker compose -f "$COMPOSE_FILE")
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GREEN='\033[0;32m'; YELLOW='\033[1;33m'; RED='\033[0;31m'; NC='\033[0m'
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info() { echo -e "${GREEN}[✓]${NC} $1"; }
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warn() { echo -e "${YELLOW}[!]${NC} $1"; }
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error() { echo -e "${RED}[✗]${NC} $1"; exit 1; }
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# ── 参数 ──
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MODE="manual"
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BACKEND_SHA_ARG=""; FRONTEND_SHA_ARG=""
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case "${1:-}" in
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--auto) MODE="auto" ;;
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"") ;;
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-*) error "未知参数: $1(用法: rollback.sh [--auto | <backend_sha> [<frontend_sha>]])" ;;
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*) BACKEND_SHA_ARG="$1"; FRONTEND_SHA_ARG="${2:-$1}" ;;
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esac
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# ── 前置:source .env + flock ──
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if [ ! -f "$REPO_ROOT/.env" ]; then
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error "未找到 ${REPO_ROOT}/.env。"
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fi
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set -a; source "$REPO_ROOT/.env"; set +a
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exec 9>/tmp/scilit-deploy.lock
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flock -n 9 || error "已有部署/回滚在进行中(/tmp/scilit-deploy.lock 被锁)。"
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# ── 解析回滚目标 ──
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# 从 versions.log 取最近一条非 ROLLBACK 行(E5:跳过回滚事件,防回滚循环)
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last_deploy_line() {
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awk '/^DEPLOY /{line=$0} END{print line}' "$DEPLOY_DIR/versions.log" 2>/dev/null || true
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}
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OLD_BACKEND_SHA=""; OLD_FRONTEND_SHA=""; DESTRUCTIVE="否"; SNAPSHOT=""
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if [ "$MODE" = "auto" ]; then
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[ -f "$DEPLOY_DIR/.pending-deploy" ] || error "--auto 需存在 .pending-deploy(本次部署失败残留),未找到。"
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read -r NEW_BACKEND_SHA NEW_FRONTEND_SHA DESTRUCTIVE SNAPSHOT < "$DEPLOY_DIR/.pending-deploy"
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# 上一个成功版本 = versions.log 最近一条 DEPLOY 行
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LINE="$(last_deploy_line)"
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[ -n "$LINE" ] || error "versions.log 无历史成功部署记录,无法确定回滚目标。"
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OLD_BACKEND_SHA="$(echo "$LINE" | awk '{print $2}')"
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OLD_FRONTEND_SHA="$(echo "$LINE" | awk '{print $3}')"
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info "自动回滚: 本次($NEW_BACKEND_SHA, destructive=$DESTRUCTIVE) → 上一版($OLD_BACKEND_SHA)"
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else
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if [ -n "$BACKEND_SHA_ARG" ]; then
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OLD_BACKEND_SHA="$BACKEND_SHA_ARG"; OLD_FRONTEND_SHA="$FRONTEND_SHA_ARG"
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# 指定版本:destructive 从 versions.log 匹配该 sha 的最近一行;缺省按否并提示
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LINE="$(awk -v s="$OLD_BACKEND_SHA" '$2==s || $3==s{line=$0} END{print line}' "$DEPLOY_DIR/versions.log" 2>/dev/null || true)"
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if [ -n "$LINE" ]; then
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DESTRUCTIVE="$(echo "$LINE" | awk '{print $4}')"
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else
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warn "versions.log 无 $OLD_BACKEND_SHA 记录,destructive 按「否」处理(数据不回退)。如该版本含破坏性迁移,请人工确认。"
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fi
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else
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LINE="$(last_deploy_line)"
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[ -n "$LINE" ] || error "versions.log 无历史成功部署记录。"
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OLD_BACKEND_SHA="$(echo "$LINE" | awk '{print $2}')"
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OLD_FRONTEND_SHA="$(echo "$LINE" | awk '{print $3}')"
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DESTRUCTIVE="$(echo "$LINE" | awk '{print $4}')"
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info "手动回滚: 最近成功部署 $OLD_BACKEND_SHA(destructive=$DESTRUCTIVE)"
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fi
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# 手动 destructive 数据回退:优先本次 predeploy 快照(无则最近一份,尽力而为)
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if [ "$DESTRUCTIVE" = "是" ]; then
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SNAPSHOT="$(ls -t /data/backups/predeploy_*.dump 2>/dev/null | head -1 || true)"
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[ -n "$SNAPSHOT" ] || error "destructive=是 但找不到 predeploy 快照(/data/backups/predeploy_*.dump),数据无法回退。"
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fi
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fi
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# ── 校验旧 tag 镜像存在 ──
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image_exists() { docker image inspect "$1" >/dev/null 2>&1; }
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if ! image_exists "scilit/backend:$OLD_BACKEND_SHA"; then
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error "镜像 scilit/backend:$OLD_BACKEND_SHA 不存在(可能已被镜像治理清理)。请用 docker tag 恢复或选择其他版本。"
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fi
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if ! image_exists "scilit/frontend:$OLD_FRONTEND_SHA"; then
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error "镜像 scilit/frontend:$OLD_FRONTEND_SHA 不存在。请用 docker tag 恢复或选择其他版本。"
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fi
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# ── 数据回退(destructive=是):pg_restore 快照,先清后恢复(L)──
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if [ "$DESTRUCTIVE" = "是" ]; then
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if [ "$MODE" = "manual" ]; then
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echo -e "${YELLOW}⚠️ 该版本含破坏性迁移,将用快照 ${SNAPSHOT} 覆盖当前数据库(pg_restore --clean)。
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当前库中的所有数据将回退到快照时间点。确认继续?(y/N)${NC}"
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read -r yn
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[ "$yn" = "y" ] || [ "$yn" = "Y" ] || error "已取消。"
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fi
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info "停止 backend/worker(避免恢复期间写入冲突)"
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"${COMPOSE[@]}" stop backend worker
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info "数据回退: pg_restore --clean --if-exists --no-owner ← $SNAPSHOT"
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PGPASSWORD="${PG_PASSWORD}" "${COMPOSE[@]}" exec -T postgres \
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pg_restore --clean --if-exists --no-owner -U scilit -d scilit < "$SNAPSHOT"
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info "数据回退完成"
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fi
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# ── 双 tag 原子切换(E2:一次 up,绝不分两次)──
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info "切换: backend+frontend → $OLD_BACKEND_SHA / $OLD_FRONTEND_SHA"
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BACKEND_TAG="$OLD_BACKEND_SHA" FRONTEND_TAG="$OLD_FRONTEND_SHA" \
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"${COMPOSE[@]}" up -d --no-deps backend worker frontend
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# ── 记录回滚事件 + 清理标记 ──
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echo "ROLLBACK $OLD_BACKEND_SHA $OLD_FRONTEND_SHA $DESTRUCTIVE $(date '+%Y-%m-%d %H:%M:%S %z')" \
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>> "$DEPLOY_DIR/versions.log"
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tail -n 200 "$DEPLOY_DIR/versions.log" > "$DEPLOY_DIR/versions.log.tmp"
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mv "$DEPLOY_DIR/versions.log.tmp" "$DEPLOY_DIR/versions.log"
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if [ "$MODE" = "auto" ]; then
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rm -f "$DEPLOY_DIR/.pending-deploy"
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fi
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info "回滚完成 ✅ 当前版本: $OLD_BACKEND_SHA"
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