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合并PR #316：新增release.sh / gray_deploy.sh / rollback_gray.sh三个脚本，适配生产环境架构（nginx upstream权重 + canary容器）
78 lines
2.5 KiB
Bash
Executable File
78 lines
2.5 KiB
Bash
Executable File
#!/bin/bash
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# 灰度回滚脚本：切回全量稳定版本，停止 canary 容器
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# 用法: ./scripts/rollback_gray.sh
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set -euo pipefail
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NGINX_CONF="${NGINX_CONF:-/etc/nginx/sites-enabled/00-xiaoxia-saas}"
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CANARY_API="${CANARY_API:-xiaoxia-api-canary}"
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CANARY_WEB="${CANARY_WEB:-xiaoxia-web-canary}"
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echo "============================================"
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echo " 灰度回滚"
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echo " 目标: 全量切回稳定版本"
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echo "============================================"
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# 1. 找最近的灰度备份
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echo ""
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echo ">>> 查找最近的灰度备份..."
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LATEST_BAK=$(ls -t "${NGINX_CONF}".bak.gray.* 2>/dev/null | head -1 || true)
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if [[ -z "$LATEST_BAK" ]]; then
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echo " 未找到灰度备份，尝试手动移除 upstream 配置..."
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# 手动回滚：移除 upstream 块，把 proxy_pass 改回 127.0.0.1
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TMP_CONF=$(mktemp)
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# 移除 upstream 块（从 "# Gray release upstreams" 到空行结束）
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awk '
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/^# Gray release upstreams/ { skip=1; next }
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skip && /^$/ && !found_first_empty { found_first_empty=1; next }
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skip && found_first_empty && /^$/ { skip=0; found_first_empty=0; next }
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skip { next }
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{ print }
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' "$NGINX_CONF" > "$TMP_CONF"
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# 把 upstream 名改回 IP
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sed -i 's|proxy_pass http://saas_api_backend|proxy_pass http://127.0.0.1:8001|g' "$TMP_CONF"
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sed -i 's|proxy_pass http://saas_web_backend/|proxy_pass http://127.0.0.1:3002/|g' "$TMP_CONF"
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mv "$TMP_CONF" "$NGINX_CONF"
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else
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echo " 从备份恢复: $LATEST_BAK"
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cp "$LATEST_BAK" "$NGINX_CONF"
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fi
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# 2. 测试并 reload nginx
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echo ""
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echo ">>> Nginx 测试 & reload..."
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if ! nginx -t 2>&1; then
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echo " ❌ Nginx 配置测试失败！请检查"
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exit 1
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fi
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nginx -s reload
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echo " ✅ Nginx 已回滚，全量切回稳定版本"
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# 3. 停止 canary 容器（延迟停止，保留30分钟便于排查）
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echo ""
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echo ">>> Canary 容器将在30分钟后停止（便于排查）"
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echo " 立即停止请执行: docker rm -f $CANARY_API $CANARY_WEB"
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# 30分钟后停止（后台执行，不阻塞脚本）
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(
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sleep 1800
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for c in "$CANARY_API" "$CANARY_WEB"; do
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if docker ps --format '{{.Names}}' | grep -q "^${c}$"; then
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docker stop "$c" >/dev/null 2>&1 && docker rm "$c" >/dev/null 2>&1
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echo "[$(date)] 已停止 canary 容器: $c"
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fi
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done
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) &
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echo ""
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echo "============================================"
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echo " ✅ 灰度回滚完成"
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echo " 流量已全部切回稳定版本"
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echo " Canary 容器: 30分钟后自动清理"
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echo "============================================"
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